CN212459996U - Mining remote electric leakage test system - Google Patents
Mining remote electric leakage test system Download PDFInfo
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- CN212459996U CN212459996U CN202021105607.3U CN202021105607U CN212459996U CN 212459996 U CN212459996 U CN 212459996U CN 202021105607 U CN202021105607 U CN 202021105607U CN 212459996 U CN212459996 U CN 212459996U
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 238000005065 mining Methods 0.000 title claims abstract description 30
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
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- 238000012423 maintenance Methods 0.000 abstract description 16
- 239000003245 coal Substances 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000002474 experimental method Methods 0.000 abstract description 3
- 238000007796 conventional method Methods 0.000 abstract 1
- 238000005034 decoration Methods 0.000 description 2
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Abstract
The utility model discloses a mining remote electric leakage test system, which is connected with a power supply system, wherein the power supply system comprises a power supply source and a power cable; the test system comprises a ground monitoring computer, a low-voltage feed switch and a circuit breaker; the low-voltage feed switch comprises a mining microcomputer protection device, a first relay, a second relay and a resistor, the mining microcomputer protection device is connected with the first relay, the first relay is connected with the circuit breaker, and the circuit breaker is connected with the power cable; the mining microcomputer protection device is connected with the ground monitoring computer and a second relay, and the second relay is connected with a resistor and the ground; the resistor is connected with the power cable. The advantages are that: compared with the conventional method for controlling the grounding by closing the grounding test button by the operation and maintenance personnel, the method is more convenient to operate and high in efficiency, the manual operation of the operation and maintenance personnel is not needed for carrying out experiments, the personal safety of the operation and maintenance personnel can be guaranteed, and the safety production of coal mines can be guaranteed.
Description
Technical Field
The utility model relates to a colliery power supply safety monitoring field especially relates to a mining long-range electric leakage test system.
Background
With the improvement of the intelligent level of coal mines in China, the power supply safety becomes very important in the production process of the coal mines, and the mining yield and the life safety guarantee are influenced at any moment. Coal mine workplaces are generally wet and poor in construction conditions, and even though various measures are adopted, the phenomenon of underground power supply and electric leakage cannot be avoided, so that the protection device is required to reliably act after underground electric leakage accidents occur, and the electric leakage protection function of the device needs to be verified through an electric leakage test regularly.
According to the traditional electric leakage test, one live wire of a circuit to be tested is controlled to be grounded through a resistor by pressing an electric leakage test button, and the underground operation is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a mining long-range electric leakage test system to solve the aforementioned problem that exists among the prior art.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
a mining remote electric leakage test system is connected with a power supply system, wherein the power supply system comprises a power supply and a power cable connected with the power supply; the test system comprises a ground monitoring computer, a low-voltage feed switch and a circuit breaker; the low-voltage feed switch comprises a mining microcomputer protection device, a first relay, a second relay and a resistor, the mining microcomputer protection device is connected with the first relay, the first relay is connected with the circuit breaker, and the circuit breaker is connected with the power cable; the mining microcomputer protection device is connected with the ground monitoring computer and a second relay, and the second relay is connected with a resistor and the ground; the resistor is connected with the power cable.
The utility model has the advantages that: compared with the conventional grounding method for operation and maintenance personnel through controlling the grounding test button to be closed, the testing device provided by the utility model has the advantages that the operation is more convenient, the efficiency is high, the manual operation of the operation and maintenance personnel is not needed for carrying out the experiment, the personal safety of the operation and maintenance personnel can be ensured, and the safety production of a coal mine is favorably ensured; the operation and maintenance personnel directly control the remote leakage test through the ground monitoring computer, the operation and maintenance personnel do not need to go deep into the coal mine to carry out related operation, the operation efficiency is high, the personal safety of the operation and maintenance personnel is convenient to guarantee, the safety production of the coal mine is facilitated to be guaranteed, and the intelligent development of the unattended coal mine for promoting underground power supply of the coal mine is of great significance.
Drawings
Fig. 1 is a schematic structural diagram of a testing apparatus in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.
As shown in fig. 1, in the present embodiment, a remote leakage testing system for a mine is provided, where the testing system is connected to a power supply system, and the power supply system includes a power supply and a power cable connected to the power supply; the test system comprises a ground monitoring computer, a low-voltage feed switch and a circuit breaker; the low-voltage feed switch comprises a mining microcomputer protection device, a first relay, a second relay and a resistor, the mining microcomputer protection device is connected with the first relay, the first relay is connected with the circuit breaker, and the circuit breaker is connected with the power cable; the mining microcomputer protection device is connected with the ground monitoring computer and a second relay, and the second relay is connected with a resistor and the ground; the resistor is connected with the power cable.
The mining microcomputer protection device is a component in the low-voltage feed switch, a power supply is taken from a power cable connected with the mining microcomputer protection device, the mining microcomputer protection device is connected with the ground monitoring computer through a communication network and used for receiving a leakage test signal sent by an operation and maintenance worker through the ground monitoring computer, and the mining microcomputer protection device controls a contact of a leakage test contact relay (a second relay) to be closed after receiving the leakage test signal sent by the ground monitoring computer. One end of a contact of a leakage test contact relay (a second relay) is connected with a resistor, and the other end of the contact is connected with the ground;
the resistor is a component in the low-voltage feed switch and used for simulating the electric leakage ground fault of the power cable during electric leakage test, one end of the resistor is connected with the power cable, and the other end of the resistor is connected with a contact of a 'electric leakage test contact' relay (a second relay).
The working process of the test device is as follows: during remote leakage test, operation and maintenance personnel operate the mining microcomputer protection device through a network through a ground monitoring computer, the mining microcomputer protection device controls the contact of a leakage test contact relay (a second relay) to be closed, and a leakage test circuit is controlled to be grounded through a resistor.
When the mining microcomputer protection device in the low-voltage feed switch detects the change of the insulation resistance value of the power cable and meets the leakage protection tripping condition, the mining microcomputer protection device controls the contact of a 'protection tripping' relay (a first relay) to be closed, so that the contact of a breaker is controlled to be opened from being closed, the power transmission between the microcomputer protection device and the power cable is realized, and the remote leakage test is finished; the contacts of the circuit breaker can be normally disconnected, and the reliability of the leakage protection function of the mining microcomputer protection device in the low-voltage feed switch is proved.
The ground monitoring computer is used for directly controlling the remote leakage test, operation and maintenance personnel do not need to go deep into the coal mine to carry out related operation, the operation efficiency is high, the personal safety of the operation and maintenance personnel is convenient to guarantee, and the safety production of the coal mine is favorably guaranteed.
Through adopting the utility model discloses an above-mentioned technical scheme has obtained following profitable effect:
the utility model provides a mining long-range electric leakage test system, this test system is through controlling the grounding test button closure control grounding method for conventional fortune dimension personnel, and it is more convenient to operate, efficient, and need not fortune dimension personnel manual operation and carry out the experiment, can ensure fortune dimension personnel's personal safety, is favorable to guaranteeing the safety in production in colliery; the operation and maintenance personnel directly control the remote leakage test through the ground monitoring computer, the operation and maintenance personnel do not need to go deep into the coal mine to carry out related operation, the operation efficiency is high, the personal safety of the operation and maintenance personnel is convenient to guarantee, the safety production of the coal mine is facilitated to be guaranteed, and the intelligent development of the unattended coal mine for promoting underground power supply of the coal mine is of great significance.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.
Claims (1)
1. A mining remote electric leakage test system is connected with a power supply system, wherein the power supply system comprises a power supply and a power cable connected with the power supply; the method is characterized in that: the test system comprises a ground monitoring computer, a low-voltage feed switch and a circuit breaker; the low-voltage feed switch comprises a mining microcomputer protection device, a first relay, a second relay and a resistor, the mining microcomputer protection device is connected with the first relay, the first relay is connected with the circuit breaker, and the circuit breaker is connected with the power cable; the mining microcomputer protection device is connected with the ground monitoring computer and a second relay, and the second relay is connected with a resistor and the ground; the resistor is connected with the power cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021105607.3U CN212459996U (en) | 2020-06-15 | 2020-06-15 | Mining remote electric leakage test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021105607.3U CN212459996U (en) | 2020-06-15 | 2020-06-15 | Mining remote electric leakage test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212459996U true CN212459996U (en) | 2021-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021105607.3U Active CN212459996U (en) | 2020-06-15 | 2020-06-15 | Mining remote electric leakage test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212459996U (en) |
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2020
- 2020-06-15 CN CN202021105607.3U patent/CN212459996U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 100070 1111, floor 11, building 2, courtyard 2, sihezhuang Road, Fengtai District, Beijing Patentee after: Beijing Guoli Electric Technology Co.,Ltd. Address before: 100070 room 402, 4th floor, building 12, District 8, 188 South 4th Ring Road West, Fengtai District, Beijing Patentee before: Beijing Guoli Mining Safety Technology Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A remote leakage testing system for mining Granted publication date: 20210202 Pledgee: Beijing good faith financing Company limited by guarantee Pledgor: Beijing Guoli Electric Technology Co.,Ltd. Registration number: Y2024990000284 |