CN202550476U - Comprehensive protective device of coal mine power center - Google Patents
Comprehensive protective device of coal mine power center Download PDFInfo
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- CN202550476U CN202550476U CN2012201891673U CN201220189167U CN202550476U CN 202550476 U CN202550476 U CN 202550476U CN 2012201891673 U CN2012201891673 U CN 2012201891673U CN 201220189167 U CN201220189167 U CN 201220189167U CN 202550476 U CN202550476 U CN 202550476U
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Abstract
The utility model discloses a comprehensive protective device of a coal mine power center, belonging to the technical field of protective devices of the coal mine power center. The technical problem to be solved is to provide the comprehensive protective device of the coal mine power center which can achieve detection at a low voltage side and trip protection at a high voltage side. The utility model adopts the technical scheme as follows: three-phase wire inlet ends of an isolating reversing switch SW1 are connected with one end of coupling reactors L1, L2 and L3 respectively; the other ends of the coupling reactors L1, L2 and L3 are connected in parallel and are connected with an input end of a leakage protection module; current transformers CT01 and CT02 are serially connected into any two phase wires of a connecting wire of a mine explosion-proof dry-type transformer T1 and the isolating reversing switch SW1 respectively; signal output ends of the current transformers CT01 and CT02 are connected with an input end of an overcurrent protector; and a failure signal port of the overcurrent protector is connected with a failure signal port of a high voltage comprehensive protector. The comprehensive protective device of the coal mine power center is applicable to the field of mines.
Description
Technical field
Power center (PC), a kind of colliery of the utility model comprehensive protector belongs to power center (PC), colliery protective device technical field.
Background technology
The power center (PC) of using under the mine at present comprises: high voltage distribution installation, mine explosion-suppression dry-type transformer and low tension switch control device, and traditional safeguard measure thinking is: low pressure detects, the low-voltage tripping protection; High pressure detects, the high-voltage trip protection; High high voltage distribution installation and low tension switch work alone separately, organically do not connect, and on high-tension side protection action is not controlled by low-pressure side; Simultaneously, the various fault-signals of low-pressure side can not be transferred to the high-pressure side, the action of control high-pressure vacuum breaker.
It is independent separately that the whole design idea of power center (PC), colliery also rests on high voltage power distribution, transformer, low-voltage distribution; Original thinking of compartment; Just be integrated into one the three in form; Be unfavorable for that the power center (PC) as an integral device reliable work, is prone to cause equipment fault, cause the equipment integral reliability to reduce.
The utility model content
Power center (PC), a kind of colliery of the utility model comprehensive protector, technical problem to be solved is: provide a kind of low-pressure side that can realize to detect power center (PC), the colliery comprehensive protector of high-pressure side trip protection.
For solving the problems of the technologies described above; The technical scheme that adopts is: power center (PC), a kind of colliery comprehensive protector, and the power center (PC), colliery is by being installed in high-voltage vacuum distribution equipment in the mining high-voltage vacuum distribution box, being installed in the mine explosion-suppression dry-type transformer T1 in the mine anti-explosion transformer tank and the low tension switch control device that is installed in the low tension switch control cabinet of mine anti-explosion power center (PC) constitutes; Said high-voltage vacuum distribution equipment is made up of with the high pressure comprehensive protection device of the control high-pressure vacuum breaker GD1 break-make that links to each other with high-pressure vacuum breaker GD1 high-pressure vacuum breaker GD1, and said low tension switch control device includes the PLC that isolates reversing switch SW1 and the control isolation reversing switch SW1 that links to each other with isolation reversing switch SW1;
The input of said mine explosion-suppression dry-type transformer T1 links to each other with the leading-out terminal of high-pressure vacuum breaker GD1; The output of mine explosion-suppression dry-type transformer T1 links to each other with the end of incoming cables that isolates reversing switch SW1; The leading-out terminal of isolating reversing switch SW1 links to each other with the end of incoming cables of relay K M1; Be serially connected with current transducer CT11, CT12 and CT13 respectively in the three-phase outlet line of relay K M1, the signal output part of said current transducer CT11, CT12 and CT13 all links to each other with the input of PLC;
The three-phase end of incoming cables of said isolation reversing switch SW1 links to each other with the end of mutual reactor L1, L2 and L3 respectively; The other end of said mutual reactor L1, L2 and L3 and connect the back link to each other with the input of leakage protection module, said leakage protection module links to each other with PLC;
Said low tension switch control device also includes overcurrent protector, current transformer CT01 and CT02; Said current transformer CT01 and CT02 are serially connected in mine explosion-suppression dry-type transformer T1 respectively and isolate any two mutually in the circuit of line between the reversing switch SW1, and the signal output part of current transformer CT01 and CT02 all links to each other with the input of overcurrent protector;
Said low tension switch control device is provided with fault contact K1, and the fault-signal port of said overcurrent protector links to each other with the fault-signal port of high pressure comprehensive protection device, and fault contact K1 is serially connected between the fault-signal port of overcurrent protector.
Said low tension switch control device also includes DC power supply, and the power port of said overcurrent protector and PLC all links to each other with the output port of power source of DC power supply.
The casing of said mine anti-explosion power center (PC) low tension switch control cabinet is provided with the explosion-proof type cable connector, and said relay K M1 links to each other with colliery power consumption equipment motor through the explosion-proof type cable connector.
The beneficial effect that the utility model compared with prior art has is: the utility model realizes that low pressure detects, the high-voltage trip protection through on the control circuit of mine anti-explosion power center (PC), installing above-mentioned safeguard measure additional; Aforesaid way and traditional low pressure detect, and the mode of low-voltage tripping relatively has reliablely, can effectively protect advantages such as low-voltage device and transformer.
Description of drawings
Below in conjunction with accompanying drawing the embodiment of the utility model is done further detailed explanation:
Fig. 1 is the electrical block diagram of the utility model;
Among the figure: 1 is that mining high-voltage vacuum distribution box, 2 is that mine anti-explosion transformer tank, 3 is that mine anti-explosion power center (PC) low tension switch control cabinet, 4 is that high pressure comprehensive protection device, 5 is that DC power supply, 6 is that overcurrent protector, 7 is that PLC, 8 is that leakage protection module, 9 is that explosion-proof type cable connector, 10 is a colliery power consumption equipment motor.
Embodiment
As shown in Figure 1; Power center (PC), a kind of colliery of the utility model comprehensive protector, the power center (PC), colliery is by being installed in high-voltage vacuum distribution equipment in the mining high-voltage vacuum distribution box 1, being installed in the mine explosion-suppression dry-type transformer T1 in the mine anti-explosion transformer tank 2 and the low tension switch control device that is installed in the mine anti-explosion power center (PC) low tension switch control cabinet 3 constitutes; Said high-voltage vacuum distribution equipment is made up of with the high pressure comprehensive protection device 4 of the control high-pressure vacuum breaker GD1 break-make that links to each other with high-pressure vacuum breaker GD1 high-pressure vacuum breaker GD1, and said low tension switch control device includes the PLC7 that isolates reversing switch SW1 and the control isolation reversing switch SW1 that links to each other with isolation reversing switch SW1.
The input of said mine explosion-suppression dry-type transformer T1 links to each other with the leading-out terminal of high-pressure vacuum breaker GD1; The output of mine explosion-suppression dry-type transformer T1 links to each other with the end of incoming cables that isolates reversing switch SW1; The leading-out terminal of isolating reversing switch SW1 links to each other with the end of incoming cables of relay K M1; Be serially connected with current transducer CT11, CT12 and CT13 respectively in the three-phase outlet line of relay K M1, the signal output part of said current transducer CT11, CT12 and CT13 all links to each other with the input of PLC7.
The three-phase end of incoming cables of said isolation reversing switch SW1 links to each other with the end of mutual reactor L1, L2 and L3 respectively; The other end of said mutual reactor L1, L2 and L3 and connect the back link to each other with the input of leakage protection module 8, said leakage protection module 8 links to each other with PLC7.
Said low tension switch control device also includes overcurrent protector 6, current transformer CT01 and CT02; Said current transformer CT01 and CT02 are serially connected in mine explosion-suppression dry-type transformer T1 respectively and isolate any two mutually in the circuit of line between the reversing switch SW1; A kind of mode wherein that Fig. 1 adopts; Current transformer CT01 and CT02 be connected in series respectively A mutually with the C circuitry phase in, the signal output part of current transformer CT01 and CT02 all links to each other with the input of overcurrent protector 6; Said low tension switch control device is provided with fault contact K1, and the fault-signal port of said overcurrent protector 6 links to each other with the fault-signal port of high pressure comprehensive protection device 4, and fault contact K1 is serially connected between the fault-signal port of overcurrent protector 6.
Said low tension switch control device also includes DC power supply 5, and the power port of said overcurrent protector 6 and PLC7 all links to each other with the output port of power source of DC power supply 5.
The casing of said mine anti-explosion power center (PC) low tension switch control cabinet 3 is provided with explosion-proof type cable connector 9, and said relay K M1 links to each other with colliery power consumption equipment motor 10 through explosion-proof type cable connector 9.
The utility model is after power center (PC) low pressure inlet wire side installs current transformer CT01, CT02 and overcurrent protector 6 additional; Inlet wire side total current is realized monitoring; When over current fault occurring and reaching set point, overcurrent protector 6 is delivered to high pressure comprehensive protection device 4 with fault-signal, 4 actions of high pressure comprehensive protection device; Break off high-pressure vacuum breaker GD1, the power supply of cutoff high main circuit; Main circuit mutual reactor L1, L2, L3 through to low pressure inlet wire side carry out leakage current detect to main circuit; When leak current fault occurring, leakage protection module 8 is delivered to PLC7 with fault-signal, PLC7 control fault contact K1 action; The guard signal line is delivered to high pressure comprehensive protection device 4 with switching signal; 4 actions of high pressure comprehensive protection device are broken off high-pressure vacuum breaker GD1, the power supply of cutoff high main circuit.
The utility model is every all equipped mutually current transducer on the circuit of power center (PC), colliery load-side; By the current conditions of the real-time monitoring load of PLC7, during as if faults such as appearance event short circuit, overload, three-phase imbalances, PLC7 control fault contact K1 action; The guard signal line is delivered to high pressure comprehensive protection device 4 with switching signal; 4 actions of high pressure comprehensive protection device are broken off high-pressure vacuum breaker GD1, the power supply of cutoff high main circuit.
Above-mentioned high pressure comprehensive protection device 4 selects to use the high pressure comprehensive protection device of model as GZBD-1 according to the side circuit needs; This high pressure comprehensive protection device adopts advanced single-chip microcomputer and control circuit thereof; Can accurately judge high and low pressure fault and safety detection sampled signal; Output in time drives the vacuum circuit-breaker signal, guarantees the reliability of protective device.
The utility model through the signal protection line, realizes that with the fault-signal of low-pressure side low pressure detects, the high-voltage trip protection through on the control circuit of mine anti-explosion power center (PC), installing above-mentioned safeguard measure additional; Aforesaid way and traditional low pressure detect, and the mode of low-voltage tripping relatively has reliablely, can effectively protect low-voltage device and transformer, guarantees advantages such as load equipment Electrical Safety.
Claims (3)
1. power center (PC), colliery comprehensive protector, the power center (PC), colliery by be installed in the high-voltage vacuum distribution equipment in the mining high-voltage vacuum distribution box (1), the mine explosion-suppression dry-type transformer T1 that is installed in the mine anti-explosion transformer tank (2) constitutes with the low tension switch control device that is installed in the mine anti-explosion power center (PC) low tension switch control cabinet (3); Said high-voltage vacuum distribution equipment is made up of the high pressure comprehensive protection device (4) of high-pressure vacuum breaker GD1 and the control high-pressure vacuum breaker GD1 break-make that links to each other with high-pressure vacuum breaker GD1, and said low tension switch control device includes the PLC (7) that isolates reversing switch SW1 and the control isolation reversing switch SW1 that links to each other with isolation reversing switch SW1;
It is characterized in that: the input of said mine explosion-suppression dry-type transformer T1 links to each other with the leading-out terminal of high-pressure vacuum breaker GD1; The output of mine explosion-suppression dry-type transformer T1 links to each other with the end of incoming cables that isolates reversing switch SW1; The leading-out terminal of isolating reversing switch SW1 links to each other with the end of incoming cables of relay K M1; Be serially connected with current transducer CT11, CT12 and CT13 respectively in the three-phase outlet line of relay K M1, the signal output part of said current transducer CT11, CT12 and CT13 all links to each other with the input of PLC (7);
The three-phase end of incoming cables of said isolation reversing switch SW1 links to each other with the end of mutual reactor L1, L2 and L3 respectively; The other end of said mutual reactor L1, L2 and L3 and connect the back link to each other with the input of leakage protection module (8), said leakage protection module (8) links to each other with PLC (7);
Said low tension switch control device also includes overcurrent protector (6), current transformer CT01 and CT02; Said current transformer CT01 and CT02 are serially connected in mine explosion-suppression dry-type transformer T1 respectively and isolate any two mutually in the circuit of line between the reversing switch SW1, and the signal output part of current transformer CT01 and CT02 all links to each other with the input of overcurrent protector (6);
Said low tension switch control device is provided with fault contact K1; The fault-signal port of said overcurrent protector (6) links to each other with the fault-signal port of high pressure comprehensive protection device (4), and fault contact K1 is serially connected between the fault-signal port of overcurrent protector (6).
2. power center (PC), a kind of colliery according to claim 1 comprehensive protector; It is characterized in that: said low tension switch control device also includes DC power supply (5), and the power port of said overcurrent protector (6) and PLC (7) all links to each other with the output port of power source of DC power supply (5).
3. power center (PC), a kind of colliery according to claim 1 and 2 comprehensive protector; It is characterized in that: the casing of said mine anti-explosion power center (PC) low tension switch control cabinet (3) is provided with explosion-proof type cable connector (9), and said relay K M1 links to each other with colliery power consumption equipment motor (10) through explosion-proof type cable connector (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201891673U CN202550476U (en) | 2012-04-28 | 2012-04-28 | Comprehensive protective device of coal mine power center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201891673U CN202550476U (en) | 2012-04-28 | 2012-04-28 | Comprehensive protective device of coal mine power center |
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| Publication Number | Publication Date |
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| CN202550476U true CN202550476U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012201891673U Expired - Fee Related CN202550476U (en) | 2012-04-28 | 2012-04-28 | Comprehensive protective device of coal mine power center |
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| CN (1) | CN202550476U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646955A (en) * | 2012-04-28 | 2012-08-22 | 山西科泰电气有限公司 | Comprehensive protecting device for coal mine power center |
| CN103337798A (en) * | 2013-05-23 | 2013-10-02 | 泰安市华阳电子科技有限公司 | Mining explosion-proof high-voltage vacuum power distribution device |
| CN107516875A (en) * | 2017-09-11 | 2017-12-26 | 鞍钢集团工程技术有限公司 | A kind of high voltage power distribution and equipment operation integrated synthesis Protection control system and method |
-
2012
- 2012-04-28 CN CN2012201891673U patent/CN202550476U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646955A (en) * | 2012-04-28 | 2012-08-22 | 山西科泰电气有限公司 | Comprehensive protecting device for coal mine power center |
| CN103337798A (en) * | 2013-05-23 | 2013-10-02 | 泰安市华阳电子科技有限公司 | Mining explosion-proof high-voltage vacuum power distribution device |
| CN107516875A (en) * | 2017-09-11 | 2017-12-26 | 鞍钢集团工程技术有限公司 | A kind of high voltage power distribution and equipment operation integrated synthesis Protection control system and method |
| CN107516875B (en) * | 2017-09-11 | 2019-06-18 | 鞍钢集团工程技术有限公司 | A kind of high voltage power distribution and equipment operation integrated synthesis Protection control system and method |
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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: 20121121 Termination date: 20150428 |
|
| EXPY | Termination of patent right or utility model |