CN201956674U - Trip-out alarming device for low-voltage vacuum feed switch and power supply system of underground substation - Google Patents
Trip-out alarming device for low-voltage vacuum feed switch and power supply system of underground substation Download PDFInfo
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- CN201956674U CN201956674U CN 201120060005 CN201120060005U CN201956674U CN 201956674 U CN201956674 U CN 201956674U CN 201120060005 CN201120060005 CN 201120060005 CN 201120060005 U CN201120060005 U CN 201120060005U CN 201956674 U CN201956674 U CN 201956674U
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- switch
- voltage vacuum
- electric
- alarm
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Abstract
The utility model discloses a trip-out alarming device for a low-voltage vacuum feed switch and a power supply system of a borehole substation. The trip-out alarming device for the low-voltage vacuum feed switch comprises a power source, a controlling end switch and an alarm. The power source, the controlling end switch and the alarm are connected in series, the power source is an original power source inside an explosion-proof casing of a low-voltage vacuum feed switch, the controlling end switch is a first auxiliary normally-open contact of a contactor inside the low-voltage vacuum feed switch, and the alarm is an explosion-proof electric bell in an explosion-partition essence safe type acousto-optic composite signal switch and alarms when the first auxiliary normally-open contact is in a closed state. The power supply system of the borehole substation comprises a substation, a control switch, borehole operational equipment, the low-voltage vacuum feed switch and the trip-out alarming device for the low-voltage vacuum feed switch. By means of the trip-out alarming device for the low-voltage vacuum feed switch and the power supply system of the borehole substation, timely alarming can be achieved by the aid of the alarming device when trip-out is caused by faults of circuits controlled by the low-voltage vacuum feed switch.
Description
Technical field
The utility model relates to down-hole electric substation alarm technique, and particularly a kind of low-voltage vacuum feeding switch is jumped electric alarm device and down-hole electric substation electric power system.
Background technology
The low-voltage vacuum feeding switch is called for short low anti-switch, is important switchgear in the electric power system in the electric substation of down-hole.When overload, short circuit or leak current fault occurring in the controlled side line of the low-voltage vacuum feeding switch road, the low-voltage vacuum feeding switch can be jumped electricity as requested automatically, thereby cuts off circuit, and controlled side apparatus is protected.
Strengthen along with the pit mining scale in recent years and the output increase, fully-mechanized mining working must adopt high-power electrical equipment to adapt to the rhythm of high-yield and high-efficiency, jumping often appears under adverse circumstances under big load and the coal mine in the low-voltage vacuum feeding switch, not only influence the ordinary production of mine, more increased the hidden danger of security incident.
The problem that prior art exists is, when the low-voltage vacuum feeding switch was jumped electricity, tripping operation sound was less, can't penetrate thick explosion-resistant enclosure, and the power transformation worker very easily neglects the electric substation of down-hole in, is difficult to find the jumping electric fault, can not in time a little overhaul breaking down.
Because when the low-voltage vacuum feeding switch is jumped electricity, can cut off the power supply circuits of controlled side,, can cause because of sending electricity untimelyly to influence production overhauling the fault point if can not in time find fault, or even because of having cut off the circuit of fire damp supervisory control system, cause the interruption of supervisory control system, therefore may cause in this time period and can't monitor the underground work situation, for example, can not in time find gas exceeding limit, therefore can have an accident, cause potential safety hazard to underground work.
The utility model content
The utility model provides a kind of low-voltage vacuum feeding switch to jump electric alarm device and down-hole electric substation electric power system, when jumping electricity, can't in time find the also problem of trouble shooting to solve in the prior art that circuit when the controlled side of low-voltage vacuum feeding switch breaks down.
The utility model provides a kind of low-voltage vacuum feeding switch to jump the electric alarm device, comprises power supply, control end switch and alarm, power supply, control end switch and alarm series connection.
Described power supply is the intrinsic safety electric source in the low-voltage vacuum feeding switch explosion-proof casing;
Described control end switch is the first auxiliary normally open contact of contactor in the low-voltage vacuum feeding switch;
Described alarm is the explosion-proof electric bell in the mine explosion-suppression essential safe type acousto-optic composite signal switch;
Wherein, described alarm is reported to the police under the described first auxiliary normally open contact closure state.
Further, also comprise reset button, described reset button links to each other with described control end switch, and described reset button disconnects described control end switch when down state.
The utility model also provides a kind of down-hole electric substation electric power system, comprises electric substation, control switch, downhole operation equipment and low-voltage vacuum feeding switch, comprises that also the low-voltage vacuum feeding switch that the utility model embodiment provides jumps the electric alarm device.
The low-voltage vacuum feeding switch that the utility model provides is jumped electric alarm device and down-hole electric substation electric power system, when the low-voltage vacuum feeding switch is jumped electricity because of the circuit of controlled side breaks down, in time report to the police by warning device, prompting the maintenance personal in time a little overhaul breaking down, and improves reliability, fail safe and the continuity of underground power supply system.
Description of drawings
The low-voltage vacuum feeding switch that Fig. 1 provides for the utility model embodiment is jumped the electrical schematic diagram of electric alarm device power unit;
Fig. 2 jumps the electric alarm manipulated or operated apparatus for the low-voltage vacuum feeding switch that the utility model embodiment provides.
Reference numeral:
The 14-power supply; 15-control end switch; The 16-alarm;
17-low-voltage vacuum feeding switch 171-first is auxiliary often to be opened 172-second auxiliary often the opening and touches
Interior contactor; Contact; Head;
173-first normally closed interlock; 174-second normally closed interlock; The 18-reset button.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The low-voltage vacuum feeding switch that Fig. 1 provides for the utility model embodiment is jumped the electrical schematic diagram of electric alarm device power unit, the low-voltage vacuum feeding switch that Fig. 2 the utility model embodiment provides is jumped the electric alarm manipulated or operated apparatus, as depicted in figs. 1 and 2, this low-voltage vacuum feeding switch jumping electric alarm device comprises power supply 14, control end switch 15 and alarm 16.
Wherein, control end switch 15 is the first auxiliary normally open contact 171 in the contactor 17 in the low-voltage vacuum feeding switch, power supply 14, control end switch 15 and alarm 16 series connection, the connecting circuit of composition warning device, alarm 16 is reported to the police under first auxiliary normally opened contact 171 switch closed condition.
The power supply 14 of warning device is the intrinsic safety electric source in the low-voltage vacuum feeding switch explosion-proof casing, draw end from the AB of down-hole low-voltage vacuum feeding switch explosion-proof casing inner control transformer, this supply voltage is the AC127V alternating voltage of (AC represents alternating voltage), therefore this warning device directly utilizes existing power supply, need not be more separately for warning device be provided with supply unit, and can adapt to the down-hole and have the safety requirements of explosive gas atmosphere to power supply.
Mine flameproof and intrinsic safety type acousto-optic composite signal switch (not shown) is used for the signal contact of belt transportation lane, rail transport lane, winch transportation lane and boring head and the signal contact of winch transportation.
This acousto-optic composite signal switch is to integrate to get button, explosion-proof lamp, explosion-proof electric bell, several functions of threeway wiring ready, utilization power carrier transmission and PHASE-LOCKED LOOP PLL TECHNIQUE, functions such as single worker's intercommunication, many All-China Federation of Taiwan Compatriots machine and the conversion of safety signal display lamp have been realized, for mine communication brings great convenience, be that communication desirable under the coal mine and signal transmit equipment, and meet the down-hole and have the safety requirements of explosive gas atmosphere electric equipment.
Alarm in this warning device adopts the explosion-proof electric bell in the above-mentioned mine flameproof and intrinsic safety type acousto-optic composite signal switch, need not to be provided with separately again alarm, and this explosion-proof electric bell meets the down-hole and has the safety requirements of explosive gas atmosphere to electric equipment.
Introduce this low-voltage vacuum feeding switch below and jump the course of work of electric alarm device.
When the circuit of the controlled side of low-voltage vacuum feeding switch is a normal condition, when faults such as overload, short circuit or electric leakage not occurring, first of the contactor 17 auxiliary normally open contact 171 does not move in the low-voltage vacuum feeding switch, auxiliary normally open contact wherein is in open position, normally-closed contact is in the close position, and warning device is not worked.
When faults such as overload, short circuit or electric leakage appear in the circuit of the controlled side of low-voltage vacuum feeding switch, the low-voltage vacuum feeding switch is jumped, at this moment, the normally closed interlock of contactor 17 disconnects in the low-voltage vacuum feeding switch, promptly first normally closed interlock 173 and second normally closed interlock 174 disconnect, cut off the circuit of controlled side, the circuit of controlled side is protected; Simultaneously, auxiliary normally open contact closure, promptly the first auxiliary normally open contact 171 and second is assisted normally open contact 172 closures, and therefore the circuit of closed warning device sends alarm signal by alarm, and prompting the maintenance personal a little overhaul breaking down, and discharges fault.
As shown from the above technical solution, when the circuit of the controlled side of low-voltage vacuum feeding switch breaks down, the low-voltage vacuum feeding switch is jumped, in time report to the police by warning device, prompting the maintenance personal a little overhaul breaking down, improve reliability, fail safe and the continuity of underground power supply system, and guarantee the safety of down-hole effect.
On the basis of the foregoing description, further, this low-voltage vacuum feeding switch is jumped the electric alarm device and also is provided with reset button 18, this reset button 18 links to each other with the first auxiliary normally open contact 171, and reset button 18 disconnects the first closed auxiliary normally open contact 171 when down state, when fault is overhauled, can press reset button 18, disconnect the circuit of warning device, eliminate alarm signal, so that circuit is keeped in repair.
The utility model also provides a kind of down-hole electric substation electric power system, comprises electric substation, control switch, downhole operation equipment and low-voltage vacuum feeding switch, comprises that also the low-voltage vacuum feeding switch that the utility model embodiment provides jumps the electric alarm device.
As shown from the above technical solution, the low-voltage vacuum feeding switch that the utility model provides is jumped electric alarm device and down-hole electric substation electric power system, utilize the equipment under the existing well, need not increase new device, can realize warning function, when the low-voltage vacuum feeding switch breaks down the jumping electricity, in time report to the police by warning device, prompting the maintenance personal a little overhaul breaking down, and improves reliability, fail safe and the continuity of underground power supply system, and guarantee the safety of down-hole effect.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (3)
1. a low-voltage vacuum feeding switch is jumped the electric alarm device, comprises power supply, control end switch and alarm, and power supply, control end switch and alarm series connection is characterized in that,
Described power supply is the intrinsic safety electric source in the low-voltage vacuum feeding switch explosion-proof casing;
Described control end switch is the first auxiliary normally open contact of contactor in the low-voltage vacuum feeding switch;
Described alarm is the explosion-proof electric bell in the mine explosion-suppression essential safe type acousto-optic composite signal switch;
Wherein, described alarm is reported to the police under the described first auxiliary normally open contact closure state.
2. low-voltage vacuum feeding switch according to claim 1 is jumped the electric alarm device, it is characterized in that, also comprises:
Reset button, described reset button links to each other with described control end switch, and described reset button disconnects described control end switch when down state.
3. a down-hole electric substation electric power system comprises electric substation, control switch, downhole operation equipment and low-voltage vacuum feeding switch, it is characterized in that, also comprises: the arbitrary described low-voltage vacuum feeding switch of claim 1～2 is jumped the electric alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120060005 CN201956674U (en) | 2011-03-09 | 2011-03-09 | Trip-out alarming device for low-voltage vacuum feed switch and power supply system of underground substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120060005 CN201956674U (en) | 2011-03-09 | 2011-03-09 | Trip-out alarming device for low-voltage vacuum feed switch and power supply system of underground substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201956674U true CN201956674U (en) | 2011-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120060005 Expired - Fee Related CN201956674U (en) | 2011-03-09 | 2011-03-09 | Trip-out alarming device for low-voltage vacuum feed switch and power supply system of underground substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201956674U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113870541A (en) * | 2021-09-22 | 2021-12-31 | 广东电网有限责任公司 | Low-voltage system operation experimental method and device |
-
2011
- 2011-03-09 CN CN 201120060005 patent/CN201956674U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113870541A (en) * | 2021-09-22 | 2021-12-31 | 广东电网有限责任公司 | Low-voltage system operation experimental method and device |
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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: 20110831 Termination date: 20150309 |
|
| EXPY | Termination of patent right or utility model |