CN205610350U - Hard clamp plate remote monitoring device of relay protection - Google Patents
Hard clamp plate remote monitoring device of relay protection Download PDFInfo
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- CN205610350U CN205610350U CN201620431522.1U CN201620431522U CN205610350U CN 205610350 U CN205610350 U CN 205610350U CN 201620431522 U CN201620431522 U CN 201620431522U CN 205610350 U CN205610350 U CN 205610350U
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- 238000012806 monitoring device Methods 0.000 title abstract 3
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 238000002955 isolation Methods 0.000 claims abstract description 4
- 230000005674 electromagnetic induction Effects 0.000 claims description 13
- 238000012360 testing method Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000008054 signal transmission Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model discloses a hard clamp plate remote monitoring device of relay protection, including position detecting element, signal input output unit and electrical unit, electrical unit and position detecting element and signal input output unit link to each other, are used for to provide the power, position detecting element with signal input output unit's input links to each other, is used for to detect the hard clamp plate state of opening and shutting of relay protection and will detect signal transmission to signal input output unit, signal input output unit's output links to each other with relay protection's remote monitoring unit, is used for exporting the remote monitoring unit behind the detection signal isolation to. The utility model discloses an advantages such as hard clamp plate remote monitoring device of relay protection has simple structure, it is accurate to detect, improve equipment operational safety.
Description
Technical field
This utility model relates generally to electrical equipment technical field, refers in particular to a kind of relay protection hard pressing plate long-distance monitorng device.
Background technology
Power system transformer substation equipment includes primary equipment and secondary device; wherein secondary device is all kinds of devices being controlled primary equipment, measure and protecting; transformer station mostly realizes unattended at present; each first and second equipment state is sent to the Surveillance center in a distant place by the telemechanical apparatus of automated system, equipment can be carried out remote monitoring.Protective relaying device is the topmost secondary device of transformer station, for being controlled the primary equipment such as chopper, transformator and protecting.Protective relaying device is thrown for convenience and is moved back, operates and adapt to the various method of operation, installs at it and is equipped with throwing the connection sheet (hard pressing plate) moved back on screen, is used for being switched on or switched off external circuit, or puts into, exit certain function.Hard pressing plate is correctly thrown and is moved back most important, and the leakage of hard pressing plate is thrown or miscarrying may cause relay fail, malfunction, has serious consequences.Owing to hard pressing plate is connected in each circuit, it is impossible to directly obtaining its state from circuit, hard pressing plate state is not all acquired by each equipment manufacturer, therefore can not carry out remote monitoring, can only lean on operation maintenance personnel periodical inspection, inspection.
Utility model content
The technical problems to be solved in the utility model is that the technical problem existed for prior art, and this utility model provides a kind of simple in construction, detects the hard pressing plate long-distance monitorng device of relay protection accurately.
For solving above-mentioned technical problem, the technical scheme that the utility model proposes is:
A kind of relay protection hard pressing plate long-distance monitorng device, including position detection unit, signal input-output unit and power subsystem, described power subsystem is connected with position detection unit and signal input-output unit for providing each unit power supply, described position detection unit is connected with the input of described signal input-output unit, for detecting relay protection hard pressing plate folding condition and detection signal being sent to signal input-output unit, the described outfan of signal input-output unit is connected with the remote monitoring unit of relay protection, export to remote monitoring unit after detection signal is isolated.
Further improvement as technique scheme:
Described position detection unit includes proximity electromagnetic induction sensor, be arranged on hard pressing plate in the close position just to cabinet face on.
Described proximity electromagnetic induction sensor is near the movable end of hard pressing plate in the close position.
Spacing between test side and the hard pressing plate of make position of described proximity electromagnetic induction sensor is 2～3mm.
Described signal input-output unit is signal acquisition circuit plate, uses light-coupled isolation between its input and output.
The input and output of described signal acquisition circuit plate are 16 tunnels.
Compared with prior art, the utility model has the advantage of
Relay protection of the present utility model hard pressing plate long-distance monitorng device, by being monitored hard pressing plate folding condition, it is possible to avoids the miscarrying of hard pressing plate or leakage to throw, improves the safety that equipment runs.
Accompanying drawing explanation
Fig. 1 is frame assumption diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Fig. 3 is the mounting structure schematic diagram of position detection unit in this utility model.
In figure, label represents: 1, position detection unit；11, proximity electromagnetic induction sensor；2, signal input-output unit；3, power subsystem；4, remote monitoring unit；5, hard pressing plate.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, this utility model is further described.
As shown in Figure 1 to Figure 3, the relay protection hard pressing plate long-distance monitorng device of the present embodiment, including position detection unit 1, signal input-output unit 2 and power subsystem 3, power subsystem 3 is connected with position detection unit 1 and signal input-output unit 2, for providing power supply, position detection unit 1 is connected with the input of signal input-output unit 2, for detecting relay protection hard pressing plate 5 folding condition and detection signal being sent to signal input-output unit 2, the outfan of signal input-output unit 2 is connected with the remote monitoring unit 4 of relay protection, export to remote monitoring unit 4 after detection signal is isolated.Relay protection of the present utility model hard pressing plate long-distance monitorng device, by being monitored hard pressing plate 5 folding condition, it is possible to avoids hard pressing plate 5 to miscarry or leak throwing, improves the safety that equipment runs.
In the present embodiment, position detection unit 1 includes proximity electromagnetic induction sensor 11, hard pressing plate 5 when being arranged in the close position by bolt just to cabinet face on, and the movable end (one end relative with turning end) of the hard pressing plate 5 that proximity electromagnetic induction sensor 11 is near time in the close position；When installing, the hard pressing plate 5 time in the close position just to cabinet panel on offer through hole, electromagnetic induction sensor is through after through hole and firm by bolt, and ensures to detect end face and spacing between pressing plate 5 firmly is 2～3mm.Using proximity electromagnetic induction sensor 11, detection is simple and accurate, is additionally installed on the movable end near hard pressing plate 5, can detect when hard pressing plate 5 disconnects, and improves the reliability of detection further.
In the present embodiment, signal input-output unit 2 is signal acquisition circuit plate, uses light-coupled isolation between its input and output；The input and output of signal acquisition circuit plate are 4,8,16 tunnels, and hard pressing plate 5 quantity monitored as required selects.Power subsystem 3 uses 24V Switching Power Supply, uses existing 220V DC source to work power supply, utilizes the DC-DC module carried inside power module to be converted to direct current 24V.
Relay protection of the present utility model hard pressing plate long-distance monitorng device, uses cordless that the physical location of hard pressing plate 5 is converted to discernible circuit junction, is sent to remote monitoring, thus solves hard pressing plate 5 remote monitoring problem.The circuit used is contacting without directly electricity with original device and hard pressing plate 5, has no effect former protection and secondary circuit.The present invention solves protection pressing plate for a long time can not carry out remote monitoring problem, makes remote monitoring personnel can control the virtual condition of pressing plate in time, it is to avoid pressing plate miscarrying and leakage are thrown, and improve the level of security that equipment runs.
Operation principle: when hard pressing plate 5 is in the close position, now the detection end face of sensor is relative with hard pressing plate 5, sensor generation electromagnetic induction, is converted to level signal output；When hard pressing plate 5 is in open position, now the detection end face of sensor can't detect hard pressing plate 5, and sensor does not has level to export.After level signal is sent to signal acquisition circuit plate, drive 24V relay output idle contact position signalling, wherein use Phototube Coupling to couple between the input of signal acquisition circuit plate with output, can effectively reduce external disturbance.Idle contact position signalling accesses the long-distance monitorng device that substation relay protection carries, and is resent to remote monitoring center and is monitored, and indicates actual throwing of each hard pressing plate 5 to move back situation to graphically.When hard pressing plate 5 loosens, circuit can be caused to connect unreliable, proximity electromagnetic induction sensor 11 is used to sense hard pressing plate 5 position, by setting suitable mounting distance, when hard pressing plate 5 two ends connect tightly, have loosening, the distance between hard pressing plate 5 and sensor can be caused to change, thus cause induced voltage to change, sensor can be judged as that hard pressing plate 5 does not puts into, therefore the present invention can not only detect whether hard pressing plate 5 puts into, can also reflect that hard pressing plate 5 connects whether to fasten, without personnel, every piece of hard pressing plate 5 be carried out scene and judge.
Although this utility model is disclosed above with preferred embodiment, but it is not limited to this utility model.Any those of ordinary skill in the art, in the case of without departing from technical solutions of the utility model scope, technical solutions of the utility model are made many possible variations and modification by the technology contents that all may utilize the disclosure above, or are revised as the Equivalent embodiments of equivalent variations.Therefore, every content without departing from technical solutions of the utility model, according to this utility model technical spirit to any simple modification made for any of the above embodiments, equivalent variations and modification, all should fall in the range of technical solutions of the utility model are protected.
Claims (6)
1. a relay protection hard pressing plate long-distance monitorng device, it is characterized in that, including position detection unit (1), signal input-output unit (2) and power subsystem (3), described power subsystem (3) is connected for providing each unit power supply with position detection unit (1) and signal input-output unit (2), described position detection unit (1) is connected with the input of described signal input-output unit (2), for detecting relay protection hard pressing plate (5) folding condition and detection signal being sent to signal input-output unit (2), the outfan of described signal input-output unit (2) is connected with the remote monitoring unit (4) of relay protection, export to remote monitoring unit (4) after detection signal is isolated.
Relay protection the most according to claim 1 hard pressing plate long-distance monitorng device, it is characterised in that described position detection unit (1) includes proximity electromagnetic induction sensor (11), be arranged on hard pressing plate (5) in the close position just to cabinet face on.
Relay protection the most according to claim 2 hard pressing plate long-distance monitorng device, it is characterised in that described proximity electromagnetic induction sensor (11) is near the movable end of hard pressing plate (5) in the close position.
4. according to the hard pressing plate long-distance monitorng device of the relay protection described in Claims 2 or 3, it is characterised in that the spacing between hard pressing plate (5) when the test side of described proximity electromagnetic induction sensor (11) and make position is 2～3mm.
Relay protection the most as claimed in any of claims 1 to 3 hard pressing plate long-distance monitorng device, it is characterised in that described signal input-output unit (2) is signal acquisition circuit plate, uses light-coupled isolation between its input and output.
Relay protection the most according to claim 5 hard pressing plate long-distance monitorng device, it is characterised in that the input and output of described signal acquisition circuit plate are 16 tunnels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620431522.1U CN205610350U (en) | 2016-05-13 | 2016-05-13 | Hard clamp plate remote monitoring device of relay protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620431522.1U CN205610350U (en) | 2016-05-13 | 2016-05-13 | Hard clamp plate remote monitoring device of relay protection |
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| Publication Number | Publication Date |
|---|---|
| CN205610350U true CN205610350U (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620431522.1U Active CN205610350U (en) | 2016-05-13 | 2016-05-13 | Hard clamp plate remote monitoring device of relay protection |
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| CN (1) | CN205610350U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109683088A (en) * | 2019-02-01 | 2019-04-26 | 国家电网有限公司 | Trip pressing plate detection instrument based on electromagnetic pulse induction |
| CN109782295A (en) * | 2019-01-25 | 2019-05-21 | 国网安徽省电力有限公司六安供电公司 | Substation's hard pressing plate state-detection capacity checking device |
| CN116388113A (en) * | 2023-06-06 | 2023-07-04 | 国网山西省电力公司超高压变电分公司 | Anti-misoperation monitoring system and method for relay protection hard pressing plate of transformer substation |
-
2016
- 2016-05-13 CN CN201620431522.1U patent/CN205610350U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782295A (en) * | 2019-01-25 | 2019-05-21 | 国网安徽省电力有限公司六安供电公司 | Substation's hard pressing plate state-detection capacity checking device |
| CN109683088A (en) * | 2019-02-01 | 2019-04-26 | 国家电网有限公司 | Trip pressing plate detection instrument based on electromagnetic pulse induction |
| CN116388113A (en) * | 2023-06-06 | 2023-07-04 | 国网山西省电力公司超高压变电分公司 | Anti-misoperation monitoring system and method for relay protection hard pressing plate of transformer substation |
| CN116388113B (en) * | 2023-06-06 | 2023-10-20 | 国网山西省电力公司超高压变电分公司 | Anti-misoperation monitoring system and method for relay protection hard pressing plate of transformer substation |
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