CN206790338U - Mobyneb frequency conversion tank - Google Patents
Mobyneb frequency conversion tank Download PDFInfo
- Publication number
- CN206790338U CN206790338U CN201720501586.9U CN201720501586U CN206790338U CN 206790338 U CN206790338 U CN 206790338U CN 201720501586 U CN201720501586 U CN 201720501586U CN 206790338 U CN206790338 U CN 206790338U
- Authority
- CN
- China
- Prior art keywords
- frequency
- contact
- frequency conversion
- distant place
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 183
- 238000005286 illumination Methods 0.000 claims description 7
- 230000007257 malfunction Effects 0.000 claims description 7
- 101150063173 SAH1 gene Proteins 0.000 description 21
- 230000005611 electricity Effects 0.000 description 6
- 230000036461 convulsion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- -1 thermoelectricity Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Inverter Devices (AREA)
Abstract
The utility model provides a kind of Mobyneb frequency conversion tank, it includes cabinet and frequency converter panel control loop, in addition to distant place change-over switch, on the spot power frequency frequency conversion change-over switch, control loop, distant place control loop, industrial frequency control loop and VFC loop on the spot；The contact of input on the spot of distant place change-over switch and distant place input contact are connected with live wire on the spot, and output contact is connected with control loop on the spot on the spot, and distant place output contact is connected with distant place control loop；The frequency conversion input contact and power frequency input contact of power frequency frequency conversion change-over switch are connected with the frequency output end of selecting for selecting frequency output end and distant place control loop of control loop on the spot, frequency conversion output contact is connected with VFC loop, and power frequency output contact is connected with industrial frequency control loop.The Mobyneb frequency conversion tank is integrated with multiple control modes, can be standby each other between each control mode, when a kind of control mode goes wrong, other modes operational outfit may be selected, so as to ensure that the reliability of control.
Description
Technical field
The utility model belongs to industry control technical field, the industrial circle including chemical industry, steel, thermoelectricity, oil etc., tool
For body, a kind of Mobyneb frequency conversion tank is the utility model is related to, requires high each applied to industrial control equipment continuous service
Individual industry and field, it can be good at ensureing the good operation of equipment, so as to improve production efficiency.
Background technology
With the development of society, the requirement more and more higher to frequency conversion tank, is increasingly intended to make frequency conversion tank have more work(
Energy；How to make frequency conversion tank that there are more functions to turn into needs to solve the problems, such as instantly.
Multifunctional variable-frequency cabinet of the prior art has a lot, if the applying date is April 20, Application No. in 2016
The Chinese patent document of the 201620354803.1st, entitled " a kind of high efficiency and heat radiation frequency conversion tank ", the patent document are related to frequency conversion tank
Technical field, more specifically to a kind of high efficiency and heat radiation frequency conversion tank, using cross-ventilated principle, set in the outside of frequency conversion tank
Put air inlet fan and cold air is sent into frequency conversion tank, set air-out fan that hot-air is sent out into frequency conversion tank in the inside of frequency conversion tank, lead to
Cross and fin is set in frequency conversion tank, the mode for installing heat dissipation pipe improves the radiating efficiency of frequency conversion tank, reduces the work of frequency conversion tank
Make temperature, improve the operating efficiency of frequency conversion tank.Air inlet fan is arranged on air inlet fan support, air inlet fan and air inlet fan branch
Frame is arranged at the outside of frequency conversion tank main body, and air-out fan is arranged on air-out fan support, air-out fan support and air-out wind
Fan is arranged at the inside of frequency conversion tank main body, and door-plate is movably connected in the front end of frequency conversion tank main body, and heat dissipation pipe is fixedly connected on
The top of frequency conversion tank main body, air outlet protection cover are fixedly connected on the left side of frequency conversion tank main body.But the patent document is efficient
Radiating frequency conversion tank simultaneously can not realize the diversity of function.
Utility model content
The purpose of this utility model is to provide a kind of Mobyneb frequency conversion tank, at least to solve present in prior art
Frequency conversion tank can not realize multi-functional technical problem.
In order to solve the above problems, the utility model provides a kind of Mobyneb frequency conversion tank, and its technical scheme is as follows：It is described
Mobyneb frequency conversion tank includes：Cabinet, on the spot distant place change-over switch, on the spot power frequency frequency conversion change-over switch, control loop, distant place control
Loop, industrial frequency control loop and VFC loop processed；The cabinet is used to provide installing space；The distant place on the spot turns
The contact of input on the spot and distant place input contact for changing switch are connected with live wire, and output contact connects with the control loop on the spot on the spot
Connect, distant place output contact is connected with the distant place control loop, after the change-over switch of a distant place on the spot is rotated, alternatively makes institute
State on the spot input contact connected with the output contact on the spot and the distant place input contact connect with the distant place output contact
It is logical；The frequency conversion input contact and power frequency input contact of the power frequency frequency conversion change-over switch and selecting for the control loop on the spot are frequently defeated
Go out end to connect with the frequency output end of selecting of the distant place control loop, frequency conversion output contact is connected with the VFC loop, work
Frequency output contact is connected with the industrial frequency control loop, after the power frequency frequency conversion change-over switch is rotated, alternatively makes the change
Frequency input, output contact are connected and power frequency input, output contact are connected；The control loop on the spot is used for by opening
The startup for the motor that dynamic, stop button control is connected with frequency converter, stop；The distant place control loop is used to believe by central station of floating dock
Number control and the startup of the motor, stop；The industrial frequency control loop is used to control the frequency of supply of the motor to be power frequency；
The VFC loop is used for the frequency of supply for changing the motor.
In Mobyneb frequency conversion tank as described above, it is preferable that the control loop on the spot includes：Parallel connection forms first
The start button of combined loop, the first of the first normally opened contact of frequency converter starting relay and power frequency startup contactor normally opened touch
Point, and be connected on the output contact on the spot and power frequency input contact with first combined loop and touched with frequency conversion input
Stop button between point, the output end of the stop button select frequency output end for the control loop on the spot；The distant place
Control loop includes：Parallel connection forms the first normally opened contact for starting terminal and distant place starting relay of the second combined loop, with
And with the second combined loop be connected on the distant place slew relay between the distant place output contact and zero line normally-closed contact and
The coil of the distant place starting relay, the stopping terminal being connected between the distant place output contact and zero line and the distant place
The coil of slew relay, the second of the distant place starting relay that input is connected with the distant place output contact are normally opened tactile
Point, the output end of the second normally opened contact of the distant place starting relay with it is described input contact portion and for the distant place control
Select frequency output end in loop；The industrial frequency control loop includes normally-closed contact and the power frequency startup contact of frequency conversion output contactor
The coil of device, the normally-closed contact of the frequency conversion output contactor and the power frequency startup contactor is connected on the power frequency output and touched
Between point and zero line, the second normally opened contact of the power frequency startup contactor is connected on the power input of power supply and the motor
Between；The VFC loop includes：Frequency conversion exports combined floodgate sub-loop and VFC sub-loop；The frequency conversion output is closed a floodgate
Sub-loop includes：First normally-closed contact of frequency conversion output contactor and the power frequency startup contactor, the power frequency startup contact
The frequency conversion that the coil of first normally-closed contact of device and the frequency conversion output contactor is connected on the power frequency frequency conversion change-over switch is closed
Between lock output contact and zero line, the frequency conversion combined floodgate input contact is connected through the control loop power switch with live wire, institute
State frequency conversion output contactor the first normally opened contact be connected on the frequency converter clutch end and the motor power supply it is defeated
Enter between end；The VFC sub-loop includes：Second normally opened contact of the frequency conversion output contactor, frequency converter start after
Coil, inverter current selection relay and the potentiometer of electrical equipment, the second normally opened contact of the frequency conversion output contactor
And the coil of the frequency converter starting relay is connected in series between the frequency conversion output contact and the zero line, the frequency conversion
Second normally opened contact of device starting relay is connected with the first command signal input of the frequency converter, the potentiometer and institute
The first Regulate signal input connection of frequency converter is stated, the second Regulate signal of the central station of floating dock signal and the frequency converter inputs
End connection, the coil tandem of the inverter current selection relay is between the distant place output contact and zero line, institute
The normally opened contact of inverter current selection relay is stated to be connected with the second command signal input of the frequency converter.
In Mobyneb frequency conversion tank as described above, it is preferable that the control loop on the spot also includes：Open in the distant place
The normally-closed contact of motor type relay, it is connected between the stop button and the input contact.
In Mobyneb frequency conversion tank as described above, it is preferable that the Mobyneb frequency conversion tank also includes frequency converter event
Hinder output relay, the coil of the frequency converter failure output relay connects with the first state signal output part of the frequency converter
Connect, the normally-closed contact of the frequency converter failure output relay is connected with the second normally opened contact of the frequency conversion output contactor.
In Mobyneb frequency conversion tank as described above, it is preferable that the Mobyneb frequency conversion tank also includes：The frequency conversion
The normally opened contact and malfunction indicator lamp of device failure output relay, the normally opened contact of the frequency converter failure output relay and institute
Malfunction indicator lamp is stated to be connected between live wire and zero line.
In Mobyneb frequency conversion tank as described above, it is preferable that the distant place control loop also includes the time relay,
The normally opened contact of the time relay is in parallel with second combined loop, the set coil of the time relay with it is described
The coils from parallel connection of coils of distant place starting relay, the normally opened contact of the distant place slew relay and the reset line of the time relay
Circle series connection forms loop.
In Mobyneb frequency conversion tank as described above, it is preferable that the Mobyneb frequency conversion tank also includes：First jerk
Button, be connected on power frequency input contact and frequency conversion input contact and the control loop on the spot select frequency output end between,
Also it is connected on selecting between frequency output end for power frequency input contact and frequency conversion input contact and the distant place control loop.
In Mobyneb frequency conversion tank as described above, it is preferable that the Mobyneb frequency conversion tank also includes：Frequency converter is transported
Row output relay and run indicator, the second state of the coil and the frequency converter of the frequency converter operation output relay
Signal output part connects, and the normally opened contact and the power frequency startup contactor the 3rd of the frequency converter operation output relay are normally opened
It is connected on after contact shunt with the run indicator between live wire and zero line；Also include：The frequency converter operation output relay
The normally-closed contact of device, the second normally-closed contact of the power frequency startup contactor and stopping indicator lamp, the frequency converter operation output
The normally-closed contact of relay, the second normally-closed contact of power frequency startup contactor and stop instruction and be connected on live wire and zero line arranges it
Between.
In Mobyneb frequency conversion tank as described above, it is preferable that the multi-functional frequency conversion tank also includes cabinet intraoral illumination
Lamp and luminous lamp switch, the cabinet intraoral illumination lamp and the luminous lamp switch are connected between live wire and zero line.
In Mobyneb frequency conversion tank as described above, it is preferable that the Mobyneb frequency conversion tank also includes：Voltmeter,
Ammeter and transformer, the voltmeter are connected in parallel between two phase lines of the power supply, for showing inlet wire electricity in frequency conversion tank
Pressure, the transformer are of coupled connections with power frequency supply line, also connect to form loop with the ammeter, in power frequency startup
When, the running current of the motor is shown, the power frequency supply line is connected to live wire and is connected with the power input of the motor
Between.
What technical scheme provided by the utility model was brought has the beneficial effect that：
The Mobyneb frequency conversion tank is integrated with multiple control modes, to meet the control mode of different demands, enables control
Diversification is reached, can be standby each other between each mode, when a kind of control mode goes wrong, other modes operation may be selected
Equipment, so as to ensure that the reliability of control.
Brief description of the drawings
Fig. 1 is the front view of the Mobyneb frequency conversion tank of the utility model preferred embodiment.
Fig. 2 is the control of the Mobyneb frequency conversion tank (including distant place change-over switch on the spot) of the utility model preferred embodiment
Structural representation.
Fig. 3 is the control of the Mobyneb frequency conversion tank (including power frequency frequency conversion change-over switch) of the utility model preferred embodiment
Structural representation.
Fig. 4 is the anti-shake electrical schematic diagram of the utility model preferred embodiment.
Fig. 5 is the reset diagram of the time relay of the utility model preferred embodiment.
Embodiment
The utility model is described in further details with reference to the accompanying drawings and detailed description.
As shown in Figures 1 to 3, the Mobyneb frequency conversion tank of the utility model preferred embodiment includes being used to provide installing space
Cabinet 1 and frequency converter panel control loop, in addition to：On the spot distant place change-over switch SAH1, power frequency frequency conversion change-over switch SAH2,
Control loop, distant place control loop, industrial frequency control loop and VFC loop on the spot.
The distant place change-over switch SAH1 contact of input on the spot 1 and distant place input contact 3 are connected with live wire on the spot, on the spot a distant place
Change-over switch SAH1 output contact on the spot 2 is connected with control loop on the spot, on the spot distant place change-over switch SAH1 distant place output
Contact 4 is connected with distant place control loop, after change-over switch SAH1 in a distant place is rotated on the spot, alternatively makes contact 1-2 connections on the spot
Connected with distant place contact 3-3, i.e., input contact 1 connects with output contact 2 on the spot on the spot, or a distant place inputs contact 3 and a distant place is defeated
Go out contact 4 to connect, so that control loop or distant place control loop are powered on the spot, that is, realize the switching on the spot with a distant place.On the spot
Distant place change-over switch SAH1 input contact includes inputting contact 1 on the spot and distant place input touches at 3 points.Distant place change-over switch on the spot
SAH1 output contact includes output contact 2 and distant place output contact 4 on the spot.
Power frequency frequency conversion change-over switch SAH2 frequency conversion input contact 1 and power frequency input contact 3 and selecting for control loop on the spot
Frequency output end connects with the frequency output end of selecting of distant place control loop, power frequency frequency conversion change-over switch SAH2 frequency conversion output contact 2 with
VFC loop is connected, and power frequency frequency conversion change-over switch SAH2 power frequency output contact 4 is connected with industrial frequency control loop, and power frequency becomes
After frequency change-over switch SAH2 is rotated, 1-2 connections in frequency conversion contact are alternatively made to be connected with power frequency contact 3-4, i.e. frequency conversion input is touched
Point 1 connects with frequency conversion output contact 2, or power frequency input contact 3 connects with power frequency output contact 4, so that industrial frequency control loop
Or VFC loop is powered, that is, realize the switching of power frequency and frequency conversion.Power frequency frequency conversion change-over switch SAH2 input contact includes
Frequency conversion inputs contact 1 and power frequency input contact 3.Power frequency frequency conversion change-over switch SAH2 output contact includes frequency conversion output contact 2
With power frequency output contact 4.
Control loop is used to control the startup for the motor being connected with frequency converter by start button and stop button, stopped on the spot
Only.Distant place control loop is used to pass through central station of floating dock signal { i.e. DCS (Distributed Control System, distributed AC servo system
System) signal } control the startup for the motor being connected with frequency converter, stop.Industrial frequency control loop is used for the power supply frequency of controlled motor
Rate is power frequency；VFC loop is used for the frequency of supply for changing motor M1.Frequency converter UF power intake is (in Fig. 3
U1, V1, W1) it is connected through inverter power switches 1QF with power supply (A, B, C).
Specifically, control loop includes start button KA, stop button GA, frequency converter starting relay P-1ZK on the spot
The first normally opened contact and power frequency startup contactor P-KM the first normally opened contact.Start button KA, frequency converter starting relay
P-1ZK the first normally opened contact and power frequency startup contactor P-KM the first normally opened contact first combined loop of formation in parallel, the
One combined loop, stop button GA are connected on distant place change-over switch SAH1 output contact on the spot 2 on the spot and power frequency frequency conversion conversion
Between the input contact for switching SAH2.Stop button GA output end selects frequency output end for control loop on the spot.
Distant place control loop includes：Start terminal X2:1-X2:2nd, distant place starting relay P-3ZK, distant place slew relay
P-4ZK and stopping terminal X2:3-X2:4.Start terminal X2:1-X2:2 and distant place starting relay P-3ZK the first normally opened contact
Form the second combined loop after parallel connection, the second combined loop and a distant place slew relay P-4ZK normally-closed contact, a distant place start after
Electrical equipment P-3ZK coil is connected between the distant place output contact 4 of distant place change-over switch SAH1 on the spot and zero line N rows.Stop end
Sub- X2:3-X2:The distant place output that 4 and distant place slew relay P-4ZK coil is connected on distant place change-over switch SAH1 on the spot is touched
Between point 4 and zero line N rows.The input of distant place starting relay P-3ZK the second normally opened contact and distant place change-over switch on the spot
SAH1 distant place output contact 4 connects, and output end selects frequency output end for distant place control loop, itself and power frequency frequency conversion change-over switch
SAH2 input contact portion.Start terminal X2:1-X2:2nd, distant place starting relay P-3ZK the first normally opened contact, a distant place are stopped
The circuit only formed after relay P-4ZK normally-closed contact, a distant place starting relay P-3ZK coil connection is properly termed as a distant place
Start control loop (or DCS starts control loop)；Stop terminal X2:3-X2:4 and distant place slew relay P-4ZK line
The circuit formed after circle connection is properly termed as a distant place and stops control loop (or DCS stops control loop).
For security control, control loop also includes distant place starting relay P-3ZK normally-closed contact on the spot, and it is connected on
Between stop button GA and power frequency frequency conversion change-over switch SAH2 input contact, now distant place slew relay P-3ZK's is normally closed
The output end of contact selects frequency output end for control loop on the spot.
Industrial frequency control loop includes：Frequency conversion output contactor M-KM normally-closed contact and power frequency startup contactor P-KM.Become
Frequency output contactor M-KM normally-closed contact and power frequency startup contactor P-KM coil are connected on power frequency frequency conversion change-over switch
Between SAH2 power frequency output contact 4 and zero line N row.Power frequency startup contactor P-KM the second normally opened contact is accordingly connected on
Between power supply and motor M1 power input.
VFC loop includes：Frequency conversion exports combined floodgate sub-loop and VFC sub-loop.
Frequency conversion output combined floodgate sub-loop includes：The first of frequency conversion output contactor M-KM and power frequency startup contactor P-KM is normal
Closed contact.
Power frequency startup contactor P-KM the first normally-closed contact and frequency conversion output contactor M-KM coil are connected on power frequency
Between frequency conversion change-over switch SAH2 frequency conversion combined floodgate output contact 6 and zero line N row, frequency conversion closes a floodgate input contact 5 through control loop
Power switch 2QF is connected with live wire, and in figure 3, live wire is A phase lines.Frequency conversion output contactor M-KM the first normally opened contact pair
It should be connected between frequency converter UF clutch end and motor M1 power input.
VFC sub-loop includes：Frequency conversion output contactor M-KM the second normally opened contact, frequency converter starting relay
P-1ZK coil, inverter current selection relay 2K and potentiometer.The second of frequency conversion output contactor M-KM is normally opened tactile
Point and frequency converter starting relay P-1Zk coil are connected in series in power frequency frequency conversion change-over switch SAH2 frequency conversion output contact 2
Between being arranged with zero line N.Frequency converter starting relay P-1ZK the second normally opened contact inputs with frequency converter UF the first command signal
End connection, potentiometer RP is connected with frequency converter UF the first Regulate signal input, potentiometer RP given ranges can for 0~
10V；Central station of floating dock signal (i.e. DCS signals) is connected with frequency converter UF the second Regulate signal input, and central station of floating dock signal is preferably given
Determine 4~20mA of scope.Inverter current selection relay 2K coil tandem is remote distant place change-over switch SAH1's on the spot
Between square output contact 4 and zero line N row, inverter current selection relay 2K normally opened contact and the second of frequency converter UF
Command signal input connects.
In order to when frequency converter UF detections are out of order, make frequency converter UF out of service, Mobyneb frequency conversion tank also includes becoming
Frequency device failure output relay P-2ZK, its coil are connected with frequency converter UF first state signal output part, its normally-closed contact with
Frequency conversion output contactor M-KM the second normally opened contact series connection.
Mobyneb frequency conversion tank also includes：For the indicating fault loop indicated malfunction, it includes：Frequency conversion
Device failure output relay P-2ZK normally opened contact and malfunction indicator lamp P-HY.Frequency converter failure output relay P-2ZK's is normal
Open contact and malfunction indicator lamp P-HY is connected between live wire and zero line N rows.
In order in the time of electric network power-fail or voltage instability, make the situation instantaneously lost or reduced in control voltage
Under, distant place control loop is still switched on state within the time of setting, is being set so as to realize in the time if power network is electric
In the case of pressure recovers normal, motor M1 is set voluntarily to start, i.e., in order to realize anti-shake Electricity Functional, distant place control loop is also wrapped
Include time relay P-ST.Time relay P-ST normally opened contact is in parallel with the second combined loop, time relay P-ST's
The coils from parallel connection of coils of set coil and distant place starting relay P-3ZK.Distant place slew relay P-4ZK normally opened contact and time after
Electrical equipment P-ST resetting coil connects to form loop.
In order in case of emergency make motor M1 out of service, Mobyneb frequency conversion tank also includes：First scram button SBE
(as shown in Figure 1), it is connected on power frequency frequency conversion change-over switch SAH2 input contact and control loop selects frequency output end on the spot
Between (i.e. stop button GA output end), the input contact and a distant place that are also connected on power frequency frequency conversion change-over switch SAH2 control back
Select between frequency output end (i.e. distant place starting relay P-3ZK the second normally opened contact) on road.
In order in case of emergency make distant place control loop stop control, Mobyneb frequency conversion tank also includes：Second jerk
Button SBE (is not shown) in Fig. 1, its be connected on the second combined loop and a distant place slew relay P-4ZK normally-closed contact it
Between.
Mobyneb frequency conversion tank also includes：For the operation instruction loop indicated running status and for stopping
The stopping instruction loop that state is indicated.Operation instruction loop includes：Frequency converter runs output relay P-6ZK and operation refers to
Show lamp P-HR, frequency converter operation output relay P-6ZK coil is connected with frequency converter UF the second status signal output, become
After frequency device operation output relay P-6ZK normally opened contact is in parallel with power frequency startup contactor P-KM the 3rd normally opened contact with fortune
Row indicator lamp P-HR is connected between live wire and zero line N rows.Stopping instruction loop includes：Frequency converter operation output relay P-
6ZK normally-closed contact, power frequency startup contactor P-KM the second normally-closed contact and stopping indicator lamp P-HG.Frequency converter operation output
Relay P-6ZK normally-closed contact, power frequency startup contactor P-KM the second normally-closed contact and stopping indicator lamp P-HG are connected on
Between live wire and zero line N rows.
For the ease of observing Mobyneb frequency conversion tank inner case, it also includes：With cabinet intraoral illumination lamp 1EL and illuminating lamp
SA cabinet intraoral illumination loop is switched, cabinet intraoral illumination lamp 1EL and luminous lamp switch SA are connected between live wire and zero line N rows.
For the voltage and current running situation of Real Time Observation Mobyneb frequency conversion tank, Mobyneb frequency conversion tank also includes：
Voltmeter PV, ammeter PA and transformer LH.Voltmeter PV is connected in parallel between two phase lines (between the A phases and B phases in such as Fig. 2
Voltage), for showing primary voltage in frequency conversion tank.Transformer LH is of coupled connections with power frequency supply line, is also gone here and there with ammeter PA
Connection forms loop, in power frequency startup, showing motor M1 running current.Power frequency supply line is connected to live wire and motor M1
Power input connection between.
The control mode of Mobyneb frequency conversion tank is illustrated below.
Control mode includes frequency converter panel control mode and external circuit control mode.External circuit control mode bag
Include：Industrial frequency control mode, on the spot VFC mode, distant place industrial frequency control mode and distant place VFC mode on the spot.Foregoing 5
The switching of kind control mode can be entered by frequency converter panel, on the spot distant place change-over switch SAH1 and power frequency frequency conversion change-over switch SAH2
Row switching.
Frequency converter panel control mode is switched over by frequency converter panel control loop, passes through change under this control mode
Frequency device panel and corresponding control loop (both can be collectively referred to as to frequency converter panel control loop) carry out control device
The start and stop of (such as motor M1) and frequency converter UF rate-adaptive pacemaker, it can be used when outside circuit controls mode goes wrong.
The control mode is a kind of control mode of itself band of frequency converter UF, its by frequency converter panel button to switch over, start and stop,
Speed governing etc. controls.
Industrial frequency control mode is by distant place change-over switch SAH1 on the spot and power frequency frequency conversion change-over switch SAH2 progress on the spot
Switching, by start button KA, stop button GA come the start and stop of control device under this control mode, this control mode is without change
Frequency device UF is controlled, therefore can not carry out speed governing to equipment motor, so this control mode typically uses in equipment debugging.
VFC mode is by distant place change-over switch SAH1 on the spot and power frequency frequency conversion change-over switch SAH2 progress on the spot
Switching, adjusted by start button KA, stop button GA by potentiometer RP come the start and stop of control device under this control mode
Frequency converter UF output frequency.This control mode typically uses when equipment debugging and distant place VFC go wrong.
Distant place industrial frequency control mode is by distant place change-over switch SAH1 on the spot and power frequency frequency conversion change-over switch SAH2 progress
Switching, by central station of floating dock signal (i.e. DCS signals) come the start and stop of control device motor under this control mode, this control mode without
Frequency Converter Control is crossed, therefore speed governing can not be carried out to equipment motor, so this state of a control typically uses in equipment debugging.
Distant place VFC mode is by distant place change-over switch SAH1 on the spot and power frequency frequency conversion change-over switch SAH2 progress
Switch, by central station of floating dock signal come the start and stop of control device motor and the rotating speed of equipment motor, this controlling party under this control mode
Formula is a kind of control mode the most frequently used in equipment normal operation.
The realization principle of outside circuit controls mode is illustrated below.
It is the conversion on the spot with a distant place first, referring to the drawings 3, when change-over switch SAH1SAH1 in a distant place is beaten left 45 degree on the spot
When, the SAH1 1-2 of contact on the spot is connected, and distant place contact 3-4 disconnects, and now namely power source bus A6102 is powered, and A6103 is not
It is powered, control loop it will hang on bus A6102 on the spot and can be achieved to control on the spot, same principle, change-over switch be beaten
When right 45 degree, the SAH1 1-2 of contact on the spot is disconnected, and distant place contact 3-4 is connected, and now bus A6103 is powered, and A6102 is not charged,
Distant place control loop is hung over state control in a distant place can be achieved on bus A6103, therefore the switching of a distant place on the spot is actually
Two buses A6102 and A6103 powered situation are exactly switched to realize by distant place change-over switch SAH1 on the spot.In order to
It is easy to describe the structure of multi-functional frequency conversion tank, bus A6101, bus A6102, bus A6103 represent that three are being connected respectively
The bus connected afterwards with live wire (the A phases in such as Fig. 3), bus N6101 represent the bus with zero line N row's connections.
Next to that the switching of power frequency and frequency conversion, reference picture 2, when power frequency frequency conversion change-over switch SAH2 is beaten when left 45 degree,
SAH2 frequency conversion contact 1-2 is connected, and power frequency contact 3-4 disconnects, and now circuit controls is frequency converter starting relay P-1ZK controls
System, controls frequency converter UF start and stop (reference picture 3), therefore be now frequency conversion by relay P-1ZK the second normally opened contact
Control mode；
When power frequency frequency conversion change-over switch SAH2 is beaten when right 45 degree, SAH2 frequency conversion contact 1-2 disconnects, power frequency contact 3-4
Connect, now that circuit controls is power frequency startup contactor P-KM, and the adhesive by contactor P-KM the second normally opened contact is straight
Start and stop motor M1 (reference picture 3) is fetched, therefore is now industrial frequency control mode, it can be seen that major loop is under power frequency state
Direct power transmission pressure can not carry out regulation motor M1 rotating speed in this state to equipment motor M1.
By distant place change-over switch change-over switch SAH1 on the spot and power frequency frequency conversion change-over switch SAH2 conversion, tie two-by-two
Close, that is, realize four kinds of most important control modes of Mobyneb frequency conversion tank：Power frequency on the spot, frequency conversion on the spot, distant place power frequency, far
Square frequency conversion.
Frequency-charger cabinet on the market typically only has one or two kinds of control modes therein now, therefore also gives the fortune of equipment
Row brings limitation.The Mobyneb frequency conversion tank (or Mobyneb frequency converter control cabinet) is integrated with multiple control modes,
To meet the control mode of different demands, enable control diversification, can be standby each other between each mode, when one kind controls
When mode goes wrong, other modes operational outfit may be selected, so as to ensure that the reliability of control.
Reference picture 4~5, the implementation process of voltage shock avoiding function is illustrated below.
Distant place change-over switch distant place contact 3-4 is connected on the spot, and when line voltage is normal, short circuit starts terminal X2:1-X2:
2, a distant place starting relay P-3ZK coil obtain electric, and distant place starting relay P-3ZK passes through its first normally opened contact (latching point)
Keep, now a distant place starts control loop normal work.Time-delay relay P-ST set coil obtains electric, its normally opened contact simultaneously
Closure.
It is unstable or in the case of losing moment (occur shake electricity) in line voltage, distant place starting relay P-3ZK's
Coil loses voltage, and distant place starting relay P-3ZK the first normally opened contact is opened, and distant place starting relay P-3ZK can not
Self-sustaining is carried out, now time relay P-ST normally opened contact still closes, and keeps distant place starting relay P-3ZK loops
Connect.
Within the time of time relay P-ST adjustment, line voltage recovers normal, now due to time relay P-ST
Normally opened contact be closure, therefore distant place starting relay P-3ZK coil can obtain electric, distant place starting relay P-3ZK
The first normally opened contact i.e. close self-locking, distant place starting relay P-3ZK recover normal operating conditions.
When artificial shut down, short circuit stops terminal X2:3-X2:4, distant place slew relay P-4ZK coil obtains electric work,
Distant place slew relay P-4ZK normally-closed contact is opened, now distant place starting relay P-3ZK coil KA1 dead electricity, and a distant place is opened
Motor type relay P-3ZK the first normally opened contact is opened, such as Fig. 2, a distant place slew relay P-4ZK normally opened contact closure, the time
Relay P-ST resetting coil closure, time relay P-ST reset, time relay P-ST normally opened contact also immediately by
Closure is changed into opening, and now loop is stopped.
In anti-shake Electricity Functional is realized, the Starting mode of frequency converter is revised as high level and started, starts relay with a distant place
Device P-3ZK the first normal opened contact is high electricity as the instruction for starting frequency converter UF in cabinet 1, now frequency converter command signal
Flat, i.e., command signal is that 1 frequency converter will start, therefore it is exactly to start frequency converter to start distant place starting relay P-3ZK.
It should be noted that the connection in the present embodiment is electrical connection, terminal numbering simply facilitates explanation, is not to this
The restriction of embodiment.
As known by the technical knowledge, the utility model can pass through other essence without departing from its spirit or the reality of essential feature
Scheme is applied to realize.Therefore, embodiment disclosed above, for each side, all it is merely illustrative, is not only
's.It is all in the scope of the utility model or in the change being equal in the scope of the utility model by the utility model bag
Contain.
Claims (10)
1. a kind of Mobyneb frequency conversion tank, including：For providing the cabinet and frequency converter panel control loop of installing space, it is special
Sign is that the Mobyneb frequency conversion tank also includes：On the spot distant place change-over switch, power frequency frequency conversion change-over switch, control back on the spot
Road, distant place control loop, industrial frequency control loop and VFC loop；
The contact of input on the spot of the change-over switch of a distant place on the spot and a distant place input contact be connected with live wire, on the spot output contact and
The connection of control loop on the spot, distant place output contact are connected with the distant place control loop, the distant place change-over switch on the spot
After rotated, alternatively make it is described input on the spot contact connected with the output contact on the spot and distant place input contact with
The distant place output contact is connected；
Frequency is selected in the frequency conversion input contact and power frequency input contact of the power frequency frequency conversion change-over switch with the control loop on the spot
Output end is connected with the frequency output end of selecting of the distant place control loop, and frequency conversion output contact is connected with the VFC loop,
Power frequency output contact is connected with the industrial frequency control loop, after the power frequency frequency conversion change-over switch is rotated, is alternatively made described
Frequency conversion input, output contact are connected and power frequency input, output contact are connected；
The control loop on the spot is used for by starting, stop button controls the startup for the motor being connected with frequency converter, stops；
The distant place control loop is used for by startup of the central station of floating dock signal control with the motor, stopping；
The industrial frequency control loop is used to control the frequency of supply of the motor to be power frequency；
The VFC loop is used for the frequency of supply for changing the motor.
2. Mobyneb frequency conversion tank according to claim 1, it is characterised in that the control loop on the spot includes：It is in parallel
Form the of the start button of the first combined loop, the first normally opened contact of frequency converter starting relay and power frequency startup contactor
One normally opened contact, and the output contact on the spot and power frequency input contact are connected on becoming with first combined loop
Stop button between frequency input contact, the output end of the stop button select frequency output end for the control loop on the spot；
The distant place control loop includes：Parallel connection forms start terminal and distant place starting relay the first of the second combined loop
Normally opened contact, and it is connected on the distant place slew relay between the distant place output contact and zero line with the second combined loop
The coil of normally-closed contact and the distant place starting relay, the stopping end being connected between the distant place output contact and zero line
The sub and coil of the distant place slew relay, the distant place starting relay that input is connected with the distant place output contact
The second normally opened contact, the output end of the second normally opened contact of a distant place starting relay contact portion and is with the input
The distant place control loop selects frequency output end；
The industrial frequency control loop includes the normally-closed contact and power frequency startup contactor of frequency conversion output contactor, the frequency conversion output
The coil of the normally-closed contact of contactor and the power frequency startup contactor is connected between the power frequency output contact and zero line, institute
The second normally opened contact for stating power frequency startup contactor is connected between the power input of power supply and the motor；
The VFC loop includes：Frequency conversion exports combined floodgate sub-loop and VFC sub-loop；
The frequency conversion output combined floodgate sub-loop includes：The first of frequency conversion output contactor and the power frequency startup contactor normally closed touches
The coil of point, the first normally-closed contact of the power frequency startup contactor and the frequency conversion output contactor is connected on the power frequency and become
Between the frequency conversion combined floodgate output contact and zero line of frequency change-over switch, the frequency conversion closes a floodgate input contact through the control loop power supply
Switch is connected with live wire, the first normally opened contact of the frequency conversion output contactor be connected on the clutch end of the frequency converter with
Between the power input of the motor；
The VFC sub-loop includes：The second normally opened contact, the frequency converter starting relay of the frequency conversion output contactor
Coil, inverter current selection relay and potentiometer, the second normally opened contact of the frequency conversion output contactor and institute
The coil for stating frequency converter starting relay is connected in series between the frequency conversion output contact and the zero line, and the frequency converter opens
Second normally opened contact of motor type relay is connected with the first command signal input of the frequency converter, the potentiometer and the change
The first Regulate signal input connection of frequency device, the second Regulate signal input of the central station of floating dock signal and the frequency converter connect
Connect, the coil tandem of the inverter current selection relay is between the distant place output contact and zero line, the change
The normally opened contact of frequency device Current Voltage switching relay is connected with the second command signal input of the frequency converter.
3. Mobyneb frequency conversion tank according to claim 2, it is characterised in that the control loop on the spot also includes：Institute
The normally-closed contact of distant place starting relay is stated, is connected between the stop button and the input contact.
4. Mobyneb frequency conversion tank according to claim 2, it is characterised in that the Mobyneb frequency conversion tank also includes becoming
Frequency device failure output relay, the coil of the frequency converter failure output relay and the first state signal of the frequency converter are defeated
Go out end connection, the second normally opened contact of the normally-closed contact of the frequency converter failure output relay and the frequency conversion output contactor
Series connection.
5. Mobyneb frequency conversion tank according to claim 4, it is characterised in that the Mobyneb frequency conversion tank also includes：
The normally opened contact and malfunction indicator lamp of the frequency converter failure output relay, the frequency converter failure output relay it is normally opened
Contact and the malfunction indicator lamp are connected between live wire and zero line.
6. Mobyneb frequency conversion tank according to claim 2, it is characterised in that the distant place control loop also includes the time
Relay, the normally opened contact of the time relay is in parallel with second combined loop, the set line of the time relay
The coils from parallel connection of coils of circle and the distant place starting relay, the normally opened contact and the time relay of the distant place slew relay
Resetting coil connect to form loop.
7. Mobyneb frequency conversion tank according to claim 2, it is characterised in that the Mobyneb frequency conversion tank also includes：
First scram button, is connected on the power frequency input contact and the frequency of selecting of frequency conversion input contact and the control loop on the spot exports
Between end, be also connected on power frequency input contact and frequency conversion input contact and the distant place control loop select frequency output end it
Between.
8. Mobyneb frequency conversion tank according to claim 2, it is characterised in that the Mobyneb frequency conversion tank also includes：
Frequency converter runs output relay and run indicator, the coil and the frequency converter of the frequency converter operation output relay
Second status signal output connects, the normally opened contact and the power frequency startup contactor of the frequency converter operation output relay
It is connected on after 3rd normally opened contact parallel connection with the run indicator between live wire and zero line；
Also include：The normally-closed contact of frequency converter operation output relay, the second of the power frequency startup contactor normally closed touch
Point and stop indicator lamp, the normally-closed contact of frequency converter operation output relay, the second of power frequency startup contactor normally closed touch
Point and stopping instruction being connected between live wire and zero line row.
9. Mobyneb frequency conversion tank according to claim 2, it is characterised in that the multi-functional frequency conversion tank also includes cabinet
Intraoral illumination lamp and luminous lamp switch, the cabinet intraoral illumination lamp and the luminous lamp switch are connected between live wire and zero line.
10. Mobyneb frequency conversion tank according to claim 2, it is characterised in that the Mobyneb frequency conversion tank also includes：
Voltmeter, ammeter and transformer, the voltmeter is connected in parallel between two phase lines of the power supply, for showing in frequency conversion tank
Primary voltage, the transformer are of coupled connections with power frequency supply line, also connect to form loop with the ammeter, in power frequency
During startup, the running current of the motor is shown, the power frequency supply line is connected to the power input of live wire and the motor
Between connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720501586.9U CN206790338U (en) | 2017-05-08 | 2017-05-08 | Mobyneb frequency conversion tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720501586.9U CN206790338U (en) | 2017-05-08 | 2017-05-08 | Mobyneb frequency conversion tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206790338U true CN206790338U (en) | 2017-12-22 |
Family
ID=60710590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720501586.9U Active CN206790338U (en) | 2017-05-08 | 2017-05-08 | Mobyneb frequency conversion tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206790338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108683383A (en) * | 2018-06-26 | 2018-10-19 | 河南森源电气股份有限公司 | A kind of frequency conversion failure cutting frequency control circuit |
-
2017
- 2017-05-08 CN CN201720501586.9U patent/CN206790338U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108683383A (en) * | 2018-06-26 | 2018-10-19 | 河南森源电气股份有限公司 | A kind of frequency conversion failure cutting frequency control circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102983593B (en) | Seamless handover control method for microgrid based on intelligent switch | |
| CN105305494B (en) | A kind of intelligent power supply system and method for supplying power to for PV air-conditioner | |
| CN104505848A (en) | Energy storage power supply device on basis of distributed energy AC (Alternating Current) and DC (Direct Current) hybrid access | |
| CN106159942B (en) | MMC-UPFC system and its series side converter shutdown method | |
| CN206790338U (en) | Mobyneb frequency conversion tank | |
| CN105763111A (en) | Generating set automatic power generation intelligent controller | |
| CN109256849A (en) | It is provided with the hotel's distribution system and its application method of diesel-driven generator | |
| CN104701836A (en) | Intelligent direct-current micro-grid power supply system | |
| CN104332332B (en) | Interlocked control system for electric grounding switch | |
| CN201156680Y (en) | Self-adaptive standby power automatic input device | |
| CN206878551U (en) | AC power PLC switching devices free of discontinuities | |
| CN207777730U (en) | The two-way number of long distance wireless passes valve regulated and control system | |
| CN105207555A (en) | Digital type electric generator automatic regulation system and method thereof | |
| CN110224432A (en) | A kind of box-type substation and its microgrid system control method | |
| CN110768290B (en) | An AC-DC hybrid distribution network for energy internet | |
| CN106655273A (en) | Intelligent hybrid energy storage and power supply terminal | |
| CN208999543U (en) | A kind of generator performance test device | |
| CN207504639U (en) | A kind of mobile communication base station alternating current/power generation automatic transfer equipment | |
| CN201708748U (en) | Well field integrated control cabinet of oil sucking machine | |
| CN112952895A (en) | Alternating current micro-grid based on forward and reverse direction impedance relay protection | |
| CN207516849U (en) | A kind of heating control circuit of food processor | |
| CN206211553U (en) | A kind of Anti-reflux controller for photovoltaic generating system | |
| CN206293893U (en) | The intelligent interconnection system of unit connection unit | |
| CN206785548U (en) | Small hydro turbine group micro-computer controlling apparatus | |
| CN208386232U (en) | A kind of dual power supply switching circuit for photovoltaic DC-to-AC converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |