CN201038825Y - Branch-station power synchronization device for transformer substation monitoring system - Google Patents
Branch-station power synchronization device for transformer substation monitoring system Download PDFInfo
- Publication number
- CN201038825Y CN201038825Y CNU2007200373869U CN200720037386U CN201038825Y CN 201038825 Y CN201038825 Y CN 201038825Y CN U2007200373869 U CNU2007200373869 U CN U2007200373869U CN 200720037386 U CN200720037386 U CN 200720037386U CN 201038825 Y CN201038825 Y CN 201038825Y
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- China
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- power supply
- monitoring
- substation
- outstation
- auxiliary relay
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- Expired - Fee Related
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Abstract
A transforming station monitoring system substation power supply synchronization device belongs to a coal mine down-hole synchro source. The device is provided with a first main switch, a second main switch, an interconnection switch, a voltage mutual-inductor, a fuse, a first monitoring power supply, a second monitoring power supply and a monitoring system substation, wherein, the first main switch and the second main switch respectively and correspondingly output a first self-control power supply and a second self-control power supply through the voltage mutual-inductor and the fuse, the first monitoring power supply and the second monitoring power supply are connected with the input end of the monitoring substation, the output end of the monitoring substation is connected with the interconnection switch through the fuse and the contact of an interconnection switch relay. The utility model has the advantages of achieving the synchronization of the monitoring power supply of the monitoring substation and a high-voltage system, guaranteeing to provide the operation power supply for the interconnection switch at the same time, easy and feasible technology, high reliability, being free of trouble, easy on-site operation and low manufacture cost, thus guaranteeing the reliable power supply of the intelligentized monitoring system power supply of a coal mine down-hole transforming station and a homogeneous transforming (distribution) station on earth surface.
Description
Technical field
The utility model relates to a kind of colliery underground substation power supply synchronizer, electric substation's supervisory control system substation power supply synchronizer of electric substation's double circuit power supply paired running under particularly a kind of coal mine.
Background technology
" each horizontal centre of down-hole becomes the circuit of the exploiting field draining pump house power supply of (joining) electric institute, main drain pump room and the exploitation of going down the hill, and must not be less than two loops according to " safety regulations in coal mine " the 442nd regulation.When stop power supply in arbitrary loop, its cocircuit should be able to be undertaken whole loads ".At present, in the mine that coal mine gas is given prominence to, each electric substation all adopts double circuit power supply, in order to guarantee down-hole two road power supplys normal power supply respectively, the switching of supervisory control system substation control two-way power supply, in order to guarantee the operate as normal of supervisory control system substation, generally adopting the illumination of this electric substation to combine the guarantor provides power supply and adopts the on line type UPS uninterrupted power supply that two kinds of modes of power supply are provided to the supervisory control system substation to the supervisory control system substation.
Wherein: 1, utilize this electric substation illumination to combine to protect and power supply is provided for the supervisory control system substation, illumination is combined and protected supply power mode following shortcoming is arranged: (1) interconnection switch does not have electricity and II road high pressure master switch when electricity is arranged at I road high pressure master switch, can not monitor combined floodgate; (2) illumination combine to be protected and controlled by this electric substation high-low pressure electric power system, and has multiple factor that illumination is combined to protect regular power down.Therefore, utilizing illumination to combine the guarantor provides the control power supply to realize that the automatic control of high-low pressure is insecure.
2, adopt the on line type UPS uninterrupted power supply power supply to be provided for the supervisory control system substation, on line type UPS uninterrupted power supply supply power mode has following shortcoming: (1) places the UPS uninterrupted power supply(ups) in downhole monitoring system substation, arrangements of elements structure and circuit complicated in the substation explosion-proof chamber have been changed, administered and maintained the increase difficulty, and cost is higher; (2) owing to down-hole electric substation temperature height, high humidity, the UPS uninterrupted power supply(ups) is placed in the airtight flame proof shell, can't ventilate, and fault is frequent, and is very unreliable in actual the use.
Summary of the invention
The purpose of this utility model is that a kind of electric substation's supervisory control system substation power supply synchronizer that reliable source of power is provided for electric substation's supervisory control system substation and interconnection switch operate as normal will be provided.
The purpose of this utility model is achieved in that this power supply synchronizer has first via master switch, No. the second master switch, interconnection switch, voltage transformer, fuse, first monitoring power supply, second monitoring power supply and supervisory control system substation, the first via master switch and No. the second master switch self are controlled power supply by voltage transformer and the corresponding output of the fuse first via self control power supply and the second tunnel respectively, first monitoring power supply is connected with the input of outstation with second monitoring power supply, and the output of outstation is connected with interconnection switch with the contact that supplies the interconnection switch relay by fuse.
Supervision system power includes normally opened contact, auxiliary relay normally-closed contact, control transformer, the first outstation input, the second outstation input, the outstation output of auxiliary relay line bag, auxiliary relay, auxiliary relay line bag is connected with first monitoring power supply, and the normally opened contact of auxiliary relay is connected with the second outstation input; The normally-closed contact of auxiliary relay is connected with the first outstation input, and the normally opened contact of auxiliary relay is connected with the other end of the normally-closed contact of auxiliary relay, and is connected with control transformer, is the output of outstation simultaneously.
Beneficial effect: owing to adopt such scheme, an auxiliary relay has been installed in device, the two-way high pressure inlet wire of electric substation has all been exported monitoring power supply, the two-way monitoring power supply is controlled by the normally opened contact of same auxiliary relay or normally-closed contact respectively, when as long as any one road power supply of two-way high pressure inlet wire has electricity, the monitoring power supply that just can guarantee high pressure interconnection switch and supervisory control system substation has electricity work, utilize the adhesive and the release of auxiliary relay, between the two-way monitoring power supply, change power supply, guaranteed that electric substation's supervisory control system substation and interconnection switch have reliable non-stop run power supply, have reached the purpose of this utility model.Advantage: fundamentally solved the unreliable systemic breakdown problem that cause of electric substation's supervisory control system substation, realized that the monitoring power supply of outstation and high-pressure system are synchronous because of power supply; Simultaneously also guaranteed to provide operating power to interconnection switch; Technology is simple and easy to do, reliability is high, fault-free and execute-in-place are easy, and low cost of manufacture has guaranteed the power transformation reliable power supply of the electric institute of the similar change in ground (joining) intelligent monitoring system power supply in one's power under the coal mine.
Description of drawings
Fig. 1, be johning knot composition of the present utility model.
Embodiment
Embodiment 1: among Fig. 1, and 1, first via master switch; 2, No. the second master switch; 3, voltage transformer; 4-1, first monitoring power supply; 4-2, second monitoring power supply 5, fuse; 6, first via master switch self control power supply; 7, No. the second master switch self control power supply; 8, auxiliary relay line bag; 9, auxiliary relay normally-closed contact; 10, auxiliary relay normally opened contact; 11, control transformer; 12, supervisory control system substation; 13, supply the contact of interconnection switch relay; 14, the first outstation input; 15, the second outstation input; 16, outstation output.
This power supply synchronizer has first via master switch 1, No. the second master switch 2, voltage transformer 3, fuse 5, the first monitoring power supply 4-1, the second monitoring power supply 4-2 and supervisory control system substation 12, the first via master switch 1 and No. the second master switch 2 self are controlled power supply 7 by voltage transformer 3 and the fuse 5 corresponding output first via self control power supplys 6 and the second tunnel respectively, the first monitoring power supply 4-1 is connected with the input of outstation with the second monitoring power supply 4-2, and the output of outstation is connected with interconnection switch with the contact 13 that supplies the interconnection switch relay by fuse.
Supervision system power includes normally opened contact 10, auxiliary relay normally-closed contact 9, control transformer 11, the first outstation input 14, the second outstation input 15, the outstation output 16 of auxiliary relay line bag 8, auxiliary relay, auxiliary relay line bag 8 is connected with the first monitoring power supply 4-1, and the normally opened contact 10 of auxiliary relay is connected with the second outstation input 15; The normally-closed contact 9 of auxiliary relay is connected with the first outstation input 14, and the normally opened contact of auxiliary relay is connected with the other end of the normally-closed contact of auxiliary relay, and is connected with control transformer 11, is the output 16 of outstation simultaneously.
When as long as electric substation's two-way high pressure inlet wire any a tunnel has electricity, just can guarantee that high pressure interconnection switch and supervisory control system substation control power supply has electricity work.The voltage transformer secondary output voltage of high-voltage switch gear is 100V, extracts the voltage that the tap of a 100V makes it to provide with the high-voltage switch gear instrument transformer out from winding of control transformer and adapts.JZC-44 auxiliary relay has been installed in device, this auxiliary relay coil voltage is 100V, utilize the normally opened contact of auxiliary relay and normally-closed contact the two-way power supply power supply is changed, realize no matter which master switch has electricity, can both guarantee that the supervisory control system substation has electricity work.Equally also can satisfy the high pressure interconnection switch when any one road inlet wire master switch has electricity, can controlled power supply.
Claims (2)
1. electric substation's supervisory control system substation power supply synchronizer, it is characterized in that: this power supply synchronizer has first via master switch, No. the second master switch, interconnection switch, voltage transformer, fuse, first monitoring power supply, second monitoring power supply and supervisory control system substation, the first via master switch and No. the second master switch self are controlled power supply by voltage transformer and the corresponding output of the fuse first via self control power supply and the second tunnel respectively, first monitoring power supply is connected with the input of outstation with second monitoring power supply, and the output of outstation is connected with interconnection switch with the contact that supplies the interconnection switch relay by fuse.
2. electric substation according to claim 1 supervisory control system substation power supply synchronizer, it is characterized in that: supervision system power includes normally opened contact, auxiliary relay normally-closed contact, control transformer, the first outstation input, the second outstation input, the outstation output of auxiliary relay line bag, auxiliary relay, auxiliary relay line bag is connected with first monitoring power supply, and the normally opened contact of auxiliary relay is connected with the second outstation input; The normally-closed contact of auxiliary relay is connected with the first outstation input, and the normally opened contact of auxiliary relay is connected with the other end of the normally-closed contact of auxiliary relay, and is connected with control transformer, is the output of outstation simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200373869U CN201038825Y (en) | 2007-05-10 | 2007-05-10 | Branch-station power synchronization device for transformer substation monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200373869U CN201038825Y (en) | 2007-05-10 | 2007-05-10 | Branch-station power synchronization device for transformer substation monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201038825Y true CN201038825Y (en) | 2008-03-19 |
Family
ID=39211349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200373869U Expired - Fee Related CN201038825Y (en) | 2007-05-10 | 2007-05-10 | Branch-station power synchronization device for transformer substation monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201038825Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025191A (en) * | 2010-11-29 | 2011-04-20 | 江苏省电力公司兴化市供电公司 | Automatic switching device for double power supplies of power load management terminal |
| CN102957198A (en) * | 2011-08-19 | 2013-03-06 | 国家电网公司 | Method, device and system capable of achieving automatic double-power-supply switching for eliminating continuous flashing |
-
2007
- 2007-05-10 CN CNU2007200373869U patent/CN201038825Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025191A (en) * | 2010-11-29 | 2011-04-20 | 江苏省电力公司兴化市供电公司 | Automatic switching device for double power supplies of power load management terminal |
| CN102957198A (en) * | 2011-08-19 | 2013-03-06 | 国家电网公司 | Method, device and system capable of achieving automatic double-power-supply switching for eliminating continuous flashing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080319 Termination date: 20100510 |