CN110931311A - VSP5 switch electric control circuit - Google Patents
VSP5 switch electric control circuit Download PDFInfo
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- CN110931311A CN110931311A CN201911196817.XA CN201911196817A CN110931311A CN 110931311 A CN110931311 A CN 110931311A CN 201911196817 A CN201911196817 A CN 201911196817A CN 110931311 A CN110931311 A CN 110931311A
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- vsp5
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- 101100149782 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) vsp-5 gene Proteins 0.000 title claims abstract description 45
- 230000009466 transformation Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 description 2
- 101000702653 Homo sapiens Sorting nexin-1 Proteins 0.000 description 1
- 102100030992 Sorting nexin-1 Human genes 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/002—Monitoring or fail-safe circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
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Abstract
The invention discloses a VSP5 switch electric control circuit, which relates to the technical field of distribution automation terminals of a power distribution network.A alternating voltage provided by an alternating voltage source sequentially passes through a first step-down transformer, a first rectifying circuit and a first diode and then outputs a direct voltage to supply power to a controller; meanwhile, the alternating-current voltage also outputs direct-current voltage to supply power to the controller after sequentially passing through the second step-down transformer, the second rectifying circuit and the second diode, the second rectifying circuit outputs the direct-current voltage to be a redundant backup of the direct-current voltage output by the first rectifying circuit, the controller controls the on-off of the bistable relay by outputting a closing signal and an opening signal to a control coil of the bistable relay, and the control coil of the on-off relay controls the voltage of the VSP5 switch to be switched on and off, so that the control relay controls the VSP5 switch to control the voltage to be switched on and off, and the problem of false operation of the VSP5 switch caused by burning of a power supply loop or restarting of the controller is solved.
Description
Technical Field
The invention belongs to the technical field of distribution automation terminals of power distribution networks, and particularly relates to a VSP5 switch electric control circuit.
Background
According to the requirements of the action plan for construction and transformation of power distribution networks (2015-2020), published by the State energy agency, the coverage rate of the distribution automation is not lower than 90% in 2020. The on-site feeder automation has been widely applied to the overhead line distribution automation transformation in China at present due to the advantages of simple and reliable logic, realization of fault automatic processing without depending on communication, low construction cost and the like. The VSP5 switch is specially designed for voltage time type feeder automation due to the unique 'incoming call is closed immediately and no voltage release' principle, can avoid matching with a large-capacity storage battery, and is widely applied to feeder automation.
However, when the VSP5 switch is in an automatic state, the on/off state of the VSP5 switch is controlled by the ac 220V electromagnetic mechanism (attracting when powered on and breaking when power is lost), the controller outlet loop generally adopts a common normally open contact of the relay to control the on/off of the control voltage of the VSP5 switch, and the control coil of the relay is powered off when the controller power module is burnt, so that the ac 220V voltage of the VSP5 switch is cut off, the switch malfunction under the condition of no fault of the medium-voltage distribution line is caused, and the power supply reliability is reduced.
Disclosure of Invention
The invention aims to provide an electric control circuit for a VSP5 switch, so that the defect of false operation of the VSP5 switch caused by burning of a power supply loop or restarting of a controller in the prior art is overcome.
To achieve the above object, the present invention provides a VSP5 switch electric control circuit, comprising:
an alternating current power supply;
the first step-down transformer, the first rectifying circuit and the first diode are connected in sequence, and the first step-down transformer is connected with the alternating current power supply;
the second step-down transformer, the second rectifying circuit and the second diode are connected in sequence, and the second step-down transformer is connected with the alternating current power supply;
a switching circuit connected to the first diode and the second diode, respectively;
a bistable relay connected to the switching circuit;
a relay connected with the bistable relay, an alternating current voltage source and a VSP5 switch, respectively; and
the first end of the controller is connected between the first rectifying circuit and the first diode, the second end of the controller is connected between the second rectifying circuit and the second diode, the third end of the controller is connected between the switching circuit and the bistable relay, and the fourth end of the controller is connected with the bistable relay; the controller outputs a closing signal and a breaking signal to the bistable relay according to a current signal output by the first diode or the second diode to control the on and off of the bistable relay, the relay is switched on and off through the on and off of the bistable relay, and the voltage of the VSP5 switch is switched on and off through the on and off of the relay.
Further, the alternating current power supply is a 220V alternating current power supply.
Further, a control coil of the relay can control the connection and disconnection of the contact of the relay 8; and the control coil of the bistable relay can control the conduction and the disconnection of the contact of the bistable relay.
Further, the closing signal and the opening signal output by the controller are direct current signals with the pulse width of 30 ms.
Further, the transformation ratio of the first step-down transformer and the second step-down transformer is 220/20.
Furthermore, when the first rectifying circuit or the second rectifying circuit breaks down, an alarm signal can be sent out in time.
Further, the bistable relay adopts a magnetic latching relay.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a VSP5 switch electric control circuit, which comprises: the control circuit comprises an alternating current voltage source 1, a first step-down transformer, a second step-down transformer, a first rectifying circuit, a second rectifying circuit, a first diode, a second diode, a switching circuit, a controller, a bistable relay, a relay and a VSP5 switch; an alternating voltage source is adopted to provide alternating voltage, and the alternating voltage is transformed by a first step-down transformer, rectified by a first rectifying circuit and a first diode and then output direct voltage to supply power for a controller; meanwhile, after the alternating voltage is transformed by the second step-down transformer, the alternating voltage is rectified by the second rectifying circuit and the second diode and then outputs direct voltage to supply power for the controller; the first rectifying circuit outputs direct-current voltage as redundant backup of the second rectifying circuit, when one rectifying circuit fails, power supply can still be kept, the function of a switching circuit is achieved, and when the first rectifying circuit fails, seamless switching is carried out to the second rectifying circuit; the controller controls the on and off of the bistable relay by outputting a closing signal and an opening signal to a control coil of the bistable relay, and controls the voltage of the VSP5 switch to be switched on and off by switching on and off the control coil of the bistable relay, so that the aim of controlling the VSP5 switch to control the voltage to be switched on and off is achieved, and the problem of false operation of the VSP5 switch caused by burning of a power supply loop or restarting of the controller is solved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only one embodiment of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a schematic diagram of the electrical control circuit for a VSP5 switch according to the present invention;
wherein: 1-alternating current voltage source, 21-first step-down transformer, 22-second step-down transformer, 31-first rectifying circuit, 32-second rectifying circuit, 41-first diode, 42-second diode, 5-switching circuit, 6-controller, 7-bistable relay, 8-relay, 9-VSP5 switch.
Detailed Description
The technical solutions in the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the VSP5 switch electric control circuit provided by the present invention comprises: an alternating current voltage source 1, a first step-down transformer 21, a second step-down transformer 22, a first rectification circuit 31, a second rectification circuit 32, a first diode 41, a second diode 42, a switching circuit 5, a controller 6, a bistable relay 7, a relay 8 and a VSP5 switch 9;
the alternating voltage source 1 is respectively connected to the input end of the first step-down transformer 21 and the input end of the second step-down transformer 22; the output end of the first step-down transformer 21 is connected with the input end of the first rectifying circuit 31, and the output end of the second step-down transformer 22 is connected with the input end of the second rectifying circuit 32; the output end of the first rectifying circuit 31 is connected with the input end of the first diode 41, and the output end of the second rectifying circuit 32 is connected with the input end of the second diode 42; the output end of the first diode 41 and the output end of the second diode 42 are respectively connected with the input end of the switching circuit 5; the output end of the switching circuit 5 is respectively connected with the power supply input end of the controller 6 and the input end of the bistable relay 7; the output end of the bistable relay 7 is connected with the input end of a control coil of the relay 8, the control coil of the relay 8 can control the conduction and the disconnection of a contact of the relay 8, the input end of the contact of the relay 8 is connected with the alternating current voltage source 1, and the contact of the output end of the relay 8 is connected with the control coil of the VSP5 switch 9; the output end of the first rectifying circuit 31 is connected with a voltage state 1 acquisition port of the controller 6, and the output end of the second rectifying circuit 32 is connected with a voltage state 2 acquisition port of the controller 6; the switching-on signal output end of the controller 6 is connected with a set coil of a control coil of the bistable relay 7, and the switching-off signal output end of the controller 6 is connected with a reset coil of the control coil of the bistable relay 7; the control coil of the bistable relay 7 can control the break of the conduction of the contacts of the bistable relay 7.
The closing signal and the opening signal output by the controller 6 are direct current signals with the pulse width of 30 ms. The voltage pulse duration is 30 ms.
When the first rectifying circuit 31 or the second rectifying circuit 32 fails, an alarm signal is sent out in time. And the first rectifying circuit 31 outputs direct current voltage as a redundant backup of the direct current voltage output by the second rectifying circuit 32, when the second rectifying circuit 32 breaks down, the voltage supply of the control coil of the relay 8 can be kept, and the VSP5 switch is prevented from being switched off due to the fact that the control coil of the relay 8 is disconnected after voltage loss.
In this embodiment, the ac power supply 1 is a 220V ac power supply; the transformation ratio of the first step-down transformer 21 and the second step-down transformer 22 is 220/20, and the adopted model of the first step-down transformer 21 and the second step-down transformer 22 is AC 220/20; the first rectifying circuit 31 or the second rectifying circuit 32 adopts an RS2507 type circuit; the first diode 41 and the second diode 42 are IN 4007; the switching circuit 5 adopts a DS2E-M-DC24V type circuit; the bistable relay 7 adopts a magnetic latching relay, and is in the model of ADJH 23012; the relay 8 adopts a common relay with the model number of JQX-13F/2Z.
The operation of the VSP5 switch motor control circuit of the present invention will be described in detail to make the present invention more apparent to those skilled in the art:
the alternating voltage source 1 provides alternating voltage, the alternating voltage is transformed by the first step-down transformer 21 and then rectified by the first rectifying circuit 31 and the first diode 41 to output direct voltage to supply power for the controller 6, meanwhile, the alternating voltage is transformed by the second step-down transformer 22 and then rectified by the second rectifying circuit 32 and the second diode 42 to output direct voltage to supply power for the controller 6, the first rectifying circuit 31 outputs direct voltage to output redundant backup of the direct voltage output by the second rectifying circuit 32, when the first rectifying circuit fails, the second rectifying circuit can still be used for maintaining power supply, the function of the switching circuit 5 is achieved, and when the first rectifying circuit fails, the first rectifying circuit is seamlessly switched to the second rectifying circuit; the bistable relay 7 adopts a magnetic latching relay, a control coil of the bistable relay 7 is provided with two coils, one is a set coil, and the other is a reset coil, the controller 6 controls the on and off of the bistable relay 7 by outputting a closing signal and an opening signal to the control coil of the bistable relay 7, and the control coil of the on and off relay 8 controls the voltage of the VSP5 switch 9 to be switched on and off, so that the aim of controlling the control coil of the VSP5 switch 9 to control the voltage to be switched on and off is achieved, and the problem of false operation of the VSP5 switch 9 caused by burning of a power supply loop or restarting of the controller 6 is solved.
For example, under a specific working condition, when the controller 6 wants to control the switch of the VPS5 to be switched on (according to the obtained logic signal), when a voltage pulse is given to the set coil, the normally open contact of the bistable relay 7 is attracted, the control voltage of the control coil of the relay 8 is switched on, the relay 8 is attracted, the 220V alternating voltage of the control coil of the VSP5 switch 9 is switched on, and the VSP5 switch 9 is switched on; when the controller 6 is to control the VSP5 switch to open, when a voltage pulse is given to the reset coil, the normally open contact of the bistable relay 7 is opened, the control voltage of the control coil of the relay 8 is cut off, the relay 8 is opened, the 220V alternating voltage of the control coil of the VSP5 switch 9 is cut off, and the VSP5 switch 9 is opened.
The above disclosure is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or modifications within the technical scope of the present invention, and shall be covered by the scope of the present invention.
Claims (7)
1. An electric control circuit of a VSP5 switch is characterized in that: the method comprises the following steps:
an alternating current power supply;
the first step-down transformer, the first rectifying circuit and the first diode are connected in sequence, and the first step-down transformer is connected with the alternating current power supply;
the second step-down transformer, the second rectifying circuit and the second diode are connected in sequence, and the second step-down transformer is connected with the alternating current power supply;
a switching circuit connected to the first diode and the second diode, respectively;
a bistable relay connected to the switching circuit;
a relay connected with the bistable relay, an alternating current voltage source and a VSP5 switch, respectively; and
the first end of the controller is connected between the first rectifying circuit and the first diode, the second end of the controller is connected between the second rectifying circuit and the second diode, the third end of the controller is connected between the switching circuit and the bistable relay, and the fourth end of the controller is connected with the bistable relay; the controller supplies power through the first diode or the second diode, outputs a closing signal and a breaking signal to the bistable relay to control the on and off of the bistable relay, switches on and off the relay through the on and off of the bistable relay, and controls the on and off of the voltage of the VSP5 switch through the on and off of the relay.
2. The VSP5 switch electrical control circuit of claim 1, wherein: the alternating current power supply is a 220V alternating current power supply.
3. The VSP5 switch electrical control circuit of claim 1, wherein: the control coil of the relay can control the conduction and the disconnection of the contact of the relay 8; and the control coil of the bistable relay can control the conduction and the disconnection of the contact of the bistable relay.
4. The VSP5 switch electrical control circuit of claim 1, wherein: the closing signal and the opening signal output by the controller are direct current signals with the pulse width of 30 ms.
5. The VSP5 switch electrical control circuit of claim 1, wherein: the transformation ratio of the first step-down transformer and the second step-down transformer is 220/20.
6. The VSP5 switch electrical control circuit of claim 1, wherein: and when the first rectifying circuit or the second rectifying circuit breaks down, an alarm signal can be sent out in time.
7. The VSP5 switch electrical control circuit of claim 1, wherein: the bistable relay adopts a magnetic latching relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911196817.XA CN110931311A (en) | 2019-11-29 | 2019-11-29 | VSP5 switch electric control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911196817.XA CN110931311A (en) | 2019-11-29 | 2019-11-29 | VSP5 switch electric control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN110931311A true CN110931311A (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911196817.XA Pending CN110931311A (en) | 2019-11-29 | 2019-11-29 | VSP5 switch electric control circuit |
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| CN (1) | CN110931311A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113741595A (en) * | 2021-08-18 | 2021-12-03 | 湖北三江航天万峰科技发展有限公司 | Environment control device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895146A (en) * | 2010-07-30 | 2010-11-24 | 浪潮电子信息产业股份有限公司 | Method for realizing redundancy of alternating current power supply |
| CN201985829U (en) * | 2010-11-30 | 2011-09-21 | 张献忠 | Switch control circuit |
| CN103681094A (en) * | 2013-12-30 | 2014-03-26 | 成都科星电力电器有限公司 | Vacuum circuit breaker control circuit and system |
| CN205123227U (en) * | 2015-11-17 | 2016-03-30 | 山东迅风电子有限公司 | FTU controller operation circuit circuit suitable for VSP5 blend switch |
-
2019
- 2019-11-29 CN CN201911196817.XA patent/CN110931311A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895146A (en) * | 2010-07-30 | 2010-11-24 | 浪潮电子信息产业股份有限公司 | Method for realizing redundancy of alternating current power supply |
| CN201985829U (en) * | 2010-11-30 | 2011-09-21 | 张献忠 | Switch control circuit |
| CN103681094A (en) * | 2013-12-30 | 2014-03-26 | 成都科星电力电器有限公司 | Vacuum circuit breaker control circuit and system |
| CN205123227U (en) * | 2015-11-17 | 2016-03-30 | 山东迅风电子有限公司 | FTU controller operation circuit circuit suitable for VSP5 blend switch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113741595A (en) * | 2021-08-18 | 2021-12-03 | 湖北三江航天万峰科技发展有限公司 | Environment control device |
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Application publication date: 20200327 |
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