CN202996684U - Permanent magnet vacuum feeder switch used in mining explosion suppression type mobile transformer station - Google Patents
Permanent magnet vacuum feeder switch used in mining explosion suppression type mobile transformer station Download PDFInfo
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- CN202996684U CN202996684U CN 201220350868 CN201220350868U CN202996684U CN 202996684 U CN202996684 U CN 202996684U CN 201220350868 CN201220350868 CN 201220350868 CN 201220350868 U CN201220350868 U CN 201220350868U CN 202996684 U CN202996684 U CN 202996684U
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- permanent magnet
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- explosion suppression
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Abstract
The utility model relates to a permanent magnet mechanism low pressure vacuum feeder switch used in a mining explosion suppression type mobile transformer station. The feeder switch is composed of a square explosion suppression shell arranged on a sled-shaped underbed, a front door control plate, a low pressure vacuum breaker, a component vertical plate and a power supply disconnecting switch. The shell can be divided into a wiring cavity and a main cavity two independent explosion suppression parts, the wiring cavity is located above the main cavity, and the incoming line and outgoing line terminals of all main loops and control loops are concentrated in the wiring cavity; the main cavity is formed by accommodating a main cavity shell and a front door, and the low pressure vacuum breaker is a permanent magnet mechanism low pressure vacuum breaker.
Description
Technical field
The utility model relates to a kind of permanent magnet mechanism low-voltage vacuum feeding switch, relates more specifically to a kind of flameproof mining mobile transformer substation permanent magnet mechanism low-voltage vacuum feeding switch.
Background technology
What low-voltage alternating-current vacuum circuit-breaker in the Coal Mine Feeder Switch of original colliery adopted is that mechanical clasps is closed a floodgate, and machine components are many, adjustments is complicated, easy to wear, often makes the coal-face power failure, and maintenance of underground is difficult, has affected the production of producing coal.
For this reason, the purpose of this utility model is exactly in order to overcome defects, the applicant has invented a kind of specially for the matching used flameproof mining mobile transformer substation of flameproof mining mobile transformer substation permanent magnet mechanism low-voltage vacuum feeding switch, and the controller of Novel intelligent has been adopted in this feeding switch design.Be applicable to contain in the mine of damp (methane) and coal dust.
What the novel feeding switch of this use adopted is permanent magnetic actuator vacuum circuit breaker, circuit breaker adopts bistable-state permanent magnet mechanism, and working stability simple in structure is reliable, due to the wearing and tearing that reduced machine components, improved mechanical endurance greatly, and manual brake separating adopts lever principle.Its distinguishing feature is not to be subjected to electric network influencing, can realize emergent sub-switching operation, the manual breaking function with real meaning.
Feeding switch of the present utility model has the advantages such as breaking capacity is strong, the life-span long, safe and reliable, explosion-resistant enclosure adopts square, Rapid opening, is comprised of permanent magnetic actuator vacuum circuit breaker, element riser, control board, power-supply isolation switch and PIR-700 intelligent controller etc.The advantages such as the controller in feeding switch has adopted advanced microprocessor technology, and high-precision data are processed and advanced defence program, has the protection precision high, and reaction speed is fast.Controller can be realized earth leakage protective (do master switch with), selective earth leakage protection (do switch-dividing with), earth leakage search/lockout, overload, short circuit, three-phase imbalance (comprising disconnected phase), lock between air and electricity, gas electric shutting and the multi-protective function such as under-voltage.Feeding switch can external far away minute shunt opening button, can also external methane monitor breaker or other need the contact of joint control, realize methane transfinite outage or other defencive functions.And can store corresponding fault message, and the work state information such as running current, voltage, fault.
After feeding switch separating brake outage, the permanent magnet mechanism of vacuum circuit-breaker can be opened door closure after 10 minutes discharge offs.
The utility model content
In order to address the above problem, invented a kind of novel flameproof mining mobile transformer substation permanent magnet mechanism low-voltage vacuum feeding switch.
the utility model is flameproof mining mobile transformer substation permanent magnet mechanism low-voltage vacuum feeding switch, described feeding switch is by the square flameproof enclosure that is arranged on sled shape underframe, the Qianmen control board, low voltage vacuum circuit breaker for permanent, the element riser, power-supply isolation switch forms, described shell can be divided into independently explosion-proof part of two, wire connection cavity and main chamber, described wire connection cavity is positioned at top, described main chamber, described wire connection cavity has been concentrated the line terminal of whole major loops and control loop, described main chamber is contained by main cavity shell and Qianmen and is formed, inside, described main chamber is equipped with low voltage vacuum circuit breaker for permanent.
In sum, the beneficial effect of feeding switch of the present utility model is the advantages such as voltage, electric current and Protection parameters are adjustable, and breaking capacity is strong, the life-span is long, safe and reliable.Explosion-resistant enclosure adopts square, Rapid opening, is convenient to produce and maintenance.Adopt intelligent multi-function general controller under advanced coal mine, controller has adopted advanced microprocessor, and high-precision data are processed and advanced protection algorithm, and the protection precision is high, and reaction speed is fast.Can realize earth leakage protective (do master switch with), selective earth leakage protection (do switch-dividing with), earth leakage search/lockout, overload, short circuit, three-phase imbalance (comprising disconnected phase) and the multi-protective function such as under-voltage.Feeding switch can external far away minute shunt opening button, can also external methane monitor breaker or other need the contact of joint control, realize methane transfinite outage or other defencive functions.
Description of drawings
Fig. 1 is the schematic diagram that flameproof mining mobile transformer substation is used permanent magnetic vacuum feed switch;
Fig. 2 is the end view that flameproof mining mobile transformer substation is used permanent magnetic vacuum feed switch;
Fig. 3 is the schematic diagram of low voltage vacuum circuit breaker for permanent.
Embodiment
The utility model is further illustrated with embodiment below in conjunction with accompanying drawing.
As shown in Figure 1, flameproof mining mobile transformer substation of the present utility model forms by being arranged on square shell mould flameproof enclosure 6 on sled shape underframe, Qianmen control board 7, low voltage vacuum circuit breaker for permanent 5, element riser 3, Chinese display 4 etc. with permanent magnet mechanism low-voltage vacuum feeding switch.Shell 6 can divide independently explosion-proof part of 2,2, wire connection cavity 1 and main chamber, and external form is seen Fig. 3.
The operation principle of feeding switch electrical system.
Close a floodgate: rotation kilovolt change over switch HK1, control transformer BK1 has electricity, and protector PIR has power supply and works; working properly without fault PIR such as electric leakages; its normal opened contact and normally closed contact are connected respectively under-voltage coil Q circuit and disjunction shunt opening coil F circuit, then press switch knob HA, auxiliary relay HZ
1Get electric adhesive, HZ
1Two main contactss closed, connect the wire loop of vacuum circuit-breaker YHT, ZD closes a floodgate, and is closed with auxiliary contact ZD3, is separating brake prepare (distant place shunt opening).
Separating brake: by opening button FA, shunt opening coil F gets electric, makes breaker open operation.Before combined floodgate, the electric leakage of major loop load side, protector PIR action; After combined floodgate, major loop load electric leakage, the PIR action, switch trip, perhaps major loop overload, overcurrent, disconnected phase, under-voltage, protector plays the PIR effect, switch trip, fault shows memory, need reset.
The main circuit switch of General Requirements low-voltage feeder switch adopts low voltage vacuum circuit breaker for permanent, has under voltage, overload, short circuit, electric leakage and overvoltage protection.Low-voltage feeder switch is that distribution is used, uniterrupted duty.The door closure of low-voltage feeder switch should have mechanical interlocking, can not open door closure to guarantee switch when the closing position; After door closure was opened, switch can not close a floodgate.Low-voltage feeder switch should have significantly minute, closing position indication and electric current, voltage, insulation resistance, overload, short circuit and electric leakage indication.
Under voltage protection; the under-voltage protector of low-voltage feeder switch should satisfy following requirement: 1) when feeding switch when make position, winding are heated to stable temperature rise under rated voltage; the protector operation voltage should be able to guarantee rated voltage 70%～35% between, make the feeding switch open circuit.2) when feeding switch when open position, supply voltage equal or exceed 85% protector rated voltage, must guarantee that feeding switch is reliably closed.
The adjustable extent of protective feature low-voltage feeder switch short-circuit protection is 3 times～10 times of the protector rated current, and clear and definite demonstration should be arranged, and protection setting value error is ± 10%.
Low voltage vacuum circuit breaker for permanent is in order to connect and the disjunction controlled circuit, during fault, automatical cutoff fault current, its operation principle as shown in Figure 3, the moving conductive rod of vacuum switch tube is connected with insulator, be connected with contact arm, main shaft, power arm by the contact spring, when there is no switching signal, when permanent magnet mechanism is in open position, it makes a concerted effort the separating brake confining force of permanent magnet mechanism and the counter-force of counter-force spring greater than the self-closing power of three vacuum switch tubes, the switching tube contact is pulled open, and circuit breaker is in gate-dividing state.
A. close a floodgate
When switching signal is arranged, controller is connected discharge with the closing coil of combined floodgate storage capacitor and permanent magnet mechanism, the moving iron core setting in motion of permanent magnet mechanism under electromagnetic force, the power arm that is attached thereto, contact arm are rotated and are made the switching tube contact closure, after switching signal disappeared, permanent magnet mechanism was in closing position under the effect of permanent magnetic, and makes the switching tube contact be in closure state, complete closing operation, circuit breaker remains on "on" position.
B. shunt opening separating brake
When sub-gate signal is arranged, controller is connected discharge with the switching winding of separating brake storage capacitor and permanent magnet mechanism, under the counter-force acting in conjunction of electromagnetic force and counter-force spring, make the moving iron core of permanent magnet mechanism to the direction motion of closing a floodgate opposite, sub-gate signal disappears later under the acting in conjunction of permanent magnetic and counter-force spring, the switching tube contact is in off-state, and the permanent magnet mechanism place completes sub-switching operation, and circuit breaker remains on gate-dividing state.
C. under-voltage separating brake
When controller detected electrical network and is in under-voltage state, the under-voltage relay action of controller inside was connected the switching winding of separating brake storage capacitor and permanent magnet mechanism equally and is discharged, and completes sub-switching operation, and circuit breaker remains on gate-dividing state.
D. manual brake separating
Under "on" position, press the manual brake separating push rod, remove the latching device of magnet short-cut path device by the connecting rod transmission, magnetic short circuited ring falls automatically, make the magnetic line of force short circuit shunting of permanent magnet, thereby reduce the confining force of permanent magnet mechanism "on" position, under the acting in conjunction of counter-force spring and contact, realize sub-switching operation.
Feeding switch of the present utility model is not limited to the structure in above-mentioned example, can carry out multiple modification.In a word, all improvements within not breaking away from the utility model spirit scope fall in the scope of utility model.
Claims (1)
1. a flameproof mining mobile transformer substation is with permanent magnet mechanism low-voltage vacuum feeding switch, described feeding switch is by the square flameproof enclosure that is arranged on sledge shape underframe, the Qianmen control board, low-voltage vacuum circuit breaker, the element riser, power-supply isolation switch forms, described square flameproof enclosure can be divided into independently explosion-proof part of two, wire connection cavity and main chamber, described wire connection cavity is positioned at the top in described main chamber, described wire connection cavity has been concentrated the line terminal of whole major loops and control loop, described main chamber is contained by main cavity shell and Qianmen and is formed, it is characterized in that, inside, described main chamber is equipped with low voltage vacuum circuit breaker for permanent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220350868 CN202996684U (en) | 2012-07-19 | 2012-07-19 | Permanent magnet vacuum feeder switch used in mining explosion suppression type mobile transformer station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220350868 CN202996684U (en) | 2012-07-19 | 2012-07-19 | Permanent magnet vacuum feeder switch used in mining explosion suppression type mobile transformer station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202996684U true CN202996684U (en) | 2013-06-12 |
Family
ID=48567827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220350868 Expired - Fee Related CN202996684U (en) | 2012-07-19 | 2012-07-19 | Permanent magnet vacuum feeder switch used in mining explosion suppression type mobile transformer station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202996684U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108389755A (en) * | 2018-05-17 | 2018-08-10 | 山东凯成电器有限公司 | Mining explosion-proof type permanent magnetic vacuum feed switch |
-
2012
- 2012-07-19 CN CN 201220350868 patent/CN202996684U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108389755A (en) * | 2018-05-17 | 2018-08-10 | 山东凯成电器有限公司 | Mining explosion-proof type permanent magnetic vacuum feed switch |
| CN108389755B (en) * | 2018-05-17 | 2023-10-03 | 山东凯成电器有限公司 | Explosion-proof permanent magnet vacuum feed switch for mine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20170719 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |