CN202888027U - A mining-used interconnection switch blocking device - Google Patents
A mining-used interconnection switch blocking device Download PDFInfo
- Publication number
- CN202888027U CN202888027U CN 201220494167 CN201220494167U CN202888027U CN 202888027 U CN202888027 U CN 202888027U CN 201220494167 CN201220494167 CN 201220494167 CN 201220494167 U CN201220494167 U CN 201220494167U CN 202888027 U CN202888027 U CN 202888027U
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- normally
- interconnection switch
- contactor
- closed
- blocking device
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- Expired - Fee Related
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Abstract
Provided is a mining-used interconnection switch blocking device which is composed of two AC contactors used for supplying electricity to an interconnection switch operating mechanism, two normally-closed buttons, and auxiliary normally-opened contacts of two master line incoming switches. In the interconnection switch blocking device, the normally-closed contact of a AC contactor KM2, the coil of a AC contactor KM1, and the normally-closed button K1 are connected with AC 100V of a first incoming line in series. The normally-closed contact of the AC contactor KM1, the coil of the AC contactor KM2, and the normally-closed button K2 are connected with AC 100V of a second incoming line in series. The power supplied to the interconnection switch blocking device is connected with the AC 100V of the first incoming line via the normally-opened contact of the AC contactor KM1, and is also connected with the AC 100V of the second incoming line via the normally-opened contact of the AC contactor KM2. When power supplied in the two lines are both normal, the interconnection switch is blocked. If one line is powered off, the interconnection switch is unblocked so that the line powered off can be supplied with power in order to guarantee normal production.
Description
Technical field
The utility model relates to safety of coal mines operation field, and particularly a kind of locking of interconnection switch reaches and automatically send electric mine safety protective device.
Background technology
Mine belongs to a class electric unit, must adopt at least electric power system power supply of two-way.The power supply of each electric substation is the two-way inlet wire under the mine, so that when one tunnel power supply needs to safeguard or goes wrong, switches in addition one the tunnel, and this duplex feeding realizes switching by an interconnection switch.All by the power supply of inlet wire side, if when the inlet wire side need to be safeguarded or break down, the operating mechanism of interconnection switch will cut off the power supply, interconnection switch just can not close a floodgate the operating mechanism of interconnection switch at present.Can cause so all equipment of interconnection switch inlet wire side all can have a power failure, impact is produced, if water pump, blower fan are arranged in the equipment even safety problem can occur.
Summary of the invention
The purpose of this utility model is for the deficiency in the above-mentioned technology, and system is more reliable in order to supply power with double circuit under the coal mine, and a kind of mining interconnection switch locking device is provided.
The utility model forms for the auxiliary normally opened contact of A.C. contactor that the interconnection switch operating mechanism send electricity, two normally closed buttons and two-way total input-wire switch by two.The normally-closed contact of A.C. contactor KM2 in the interconnection switch locking device, the coil of A.C. contactor KM1 are connected on one road inlet wire with normally closed button K1 and exchange among the 100V; The normally-closed contact of A.C. contactor KM1, the coil of A.C. contactor KM2 are connected on two road inlet wires with normally closed button K2 and exchange among the 100V.The power supply of interconnection switch operating mechanism is connected on one road inlet wire interchange 100V through the normally opened contact of A.C. contactor KM1; The power supply of interconnection switch operating mechanism also is connected on two road inlet wires interchange 100V through the normally opened contact of A.C. contactor KM2.Locking interconnection switch when the power supply of two-way inlet wire is all normal; Release interconnection switch when having one tunnel to have a power failure so just can ensure normal production to the dead line power supply.
Description of drawings
Fig. 1 is that electric substation supplies electrical schematic under the mine.
Fig. 2 is mining contact locking device operation principle schematic diagram.
Embodiment
KM1, KM2 are two A.C. contactors as shown in Figure 2, and K1 and K2 are two normally closed buttons.
The normally-closed contact of KM2, coil and the normally closed button K1 of KM1 are connected among the AC100V of one road inlet wire; The normally-closed contact of KM1, coil and the normally closed button K2 of KM2 are connected among the AC100V of two road inlet wires.
The low-pressure side AC100V of one road inlet wire can power to the interconnection switch operating mechanism by the normally opened contact of KM1, and the low-pressure side AC100V of two road inlet wires can power to the interconnection switch operating mechanism by the normally opened contact of KM2.
When two-way total input-wire switch all closed a floodgate, KM1 and KM2 had and only have a meeting closure, gave the operating mechanism power supply of interconnection switch.When the KM1 closure, at this moment the low-pressure side of one road inlet wire is to the power supply of interconnection switch operating mechanism, if need to safeguard two road inlet wires, first interconnection switch is closed a floodgate, separating brake two road inlet wire master switchs get final product again, and at this moment KM2 divides out, oppositely send electricity can for two road inlet wires, reach the locking purpose; If need to safeguard one road inlet wire, press first K1, KM2 is closed, KM1 separates, and the operating mechanism of interconnection switch switches to the low-pressure side power supply of two road inlet wires, and then separating brake one road inlet wire master switch just can be safeguarded, at this moment KM1 divides out, and oppositely send electricity can for one road inlet wire, reaches the locking purpose.The all devices of this electric substation is in normal operating conditions all the time in the whole process, need not to have a power failure.
Claims (1)
1. mining interconnection switch locking device is used for sending the auxiliary normally opened contact of the A.C. contactor of electricity, two normally closed buttons and two-way total input-wire switch to form to the interconnection switch operating mechanism by two; The normally-closed contact of A.C. contactor KM2 in the interconnection switch locking device, the coil of A.C. contactor KM1 are connected on one road inlet wire with normally closed button K1 and exchange among the 100V; The normally-closed contact of A.C. contactor KM1, the coil of A.C. contactor KM2 are connected on two road inlet wires with normally closed button K2 and exchange among the 100V; The power supply of interconnection switch operating mechanism is connected on one road inlet wire interchange 100V through the normally opened contact of A.C. contactor KM1; The power supply of interconnection switch operating mechanism also is connected on two road inlet wires interchange 100V through the normally opened contact of A.C. contactor KM2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494167 CN202888027U (en) | 2012-09-26 | 2012-09-26 | A mining-used interconnection switch blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494167 CN202888027U (en) | 2012-09-26 | 2012-09-26 | A mining-used interconnection switch blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202888027U true CN202888027U (en) | 2013-04-17 |
Family
ID=48079424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220494167 Expired - Fee Related CN202888027U (en) | 2012-09-26 | 2012-09-26 | A mining-used interconnection switch blocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202888027U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681033A (en) * | 2013-12-19 | 2014-03-26 | 山东华宁矿业集团有限公司 | Mechanical locking device for high voltage safeguard switch isolation bolts |
-
2012
- 2012-09-26 CN CN 201220494167 patent/CN202888027U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681033A (en) * | 2013-12-19 | 2014-03-26 | 山东华宁矿业集团有限公司 | Mechanical locking device for high voltage safeguard switch isolation bolts |
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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: 20130417 Termination date: 20150926 |
|
| EXPY | Termination of patent right or utility model |