CN202794462U - Intelligent fault diagnosis device for opening and closing coils - Google Patents
Intelligent fault diagnosis device for opening and closing coils Download PDFInfo
- Publication number
- CN202794462U CN202794462U CN201220491489.3U CN201220491489U CN202794462U CN 202794462 U CN202794462 U CN 202794462U CN 201220491489 U CN201220491489 U CN 201220491489U CN 202794462 U CN202794462 U CN 202794462U
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- diagnosis device
- divide
- shut brake
- current sensor
- opening
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 12
- 238000013500 data storage Methods 0.000 claims abstract description 9
- 210000000352 storage cell Anatomy 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 238000004804 winding Methods 0.000 description 11
- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000013178 mathematical model Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses an intelligent fault diagnosis device for opening and closing coils. The intelligent fault diagnosis device can monitor opening and closing coil states reliably, determine potential faults, and guarantee the normal operation of high-voltage switch opening and closing processes. The intelligent fault diagnosis device comprises an embedded micro processor, a switching value input unit, a current sensor, a data storage unit, a communication unit, an alarm output unit and a stabilized voltage supply. The switching value input unit, the current sensor, the data storage unit, the communication unit, the alarm output unit and the stabilized voltage supply are connected with the embedded micro processor respectively, and the current sensor is connected with opening and closing coils.
Description
Technical field:
The utility model relates to a kind of divide-shut brake coil intelligent trouble diagnosis device.
Background technology:
The electric system switch closes, in the sub-gate circuit, often have the situation of on/off switch coil burnout to occur, and has brought a lot of troubles to relay protection work.This is mainly caused by following reason: the tripping of circuit breaker operation mechanism generation bite; Auxiliary contact is because service time is of a specified duration, the situations such as capacity is inadequate, arcing cause auxiliary contact sticking dead; Auxiliary contact position and on off state position are not exclusively corresponding, the action mismate.More than these situations all can be so that the large electric current long duration of action of on/off switch in the on/off switch coil, so that cause coil burnout, affects safe and reliable power supply.
In addition, minimum minute of high-voltage switch gear, close operation voltage is the most basic parameter of isolating switch.The isolating switch low-voltage is divided, the combined floodgate test standard is standard code: electromagnetic mechanism switching winding and closing contactor coil minimum voltage action must not be lower than 30% of rated voltage, must not be higher than 65% of rated voltage, the closing coil minimum voltage action must not be lower than 80%～85% of rated voltage.Isolating switch minute, feed motion needs that all certain energy is arranged, and in order to guarantee the closing speed of isolating switch, stipulated the closing coil minimum voltage action of isolating switch, must not be lower than 80%～85% of rated voltage.That operation voltage because of this coil can not be excessively low to the low-voltage of switching winding and contactor coil regulation, also must not be too high.If cross lowly, at the straight-flow system defective insulation, in the situation of 2 high resistance grounds, may introduce a DC voltage that numerical value is little at switching winding or contactor coil two ends, when the coil motion brownout, can cause isolating switch mistake separating brake and false switching; If too high, in the time of then can be because of the system failure, DC bus-bar voltage reduces and the refusal tripping operation.
Above-mentioned situation causes the operator can not understand in real time the ruuning situation of divide-shut brake coil all because the divide-shut brake coil is not arranged supervising device, and problem has occurred often, goes after meeting accident to remedy again, and causes unnecessary loss.
Summary of the invention:
The purpose of this utility model is in order to overcome the shortcoming of above-mentioned prior art, a kind of divide-shut brake coil state of monitoring reliably to be provided, judge incipient fault, guaranteeing the divide-shut brake coil intelligent trouble diagnosis device that normally carries out of high-voltage switch gear divide-shut brake process.
For achieving the above object, the technical scheme that the utility model provides is: divide-shut brake coil intelligent trouble diagnosis device, include embedded microprocessor, switching value input block, current sensor, data storage cell, communication unit, warning output unit and stabilized voltage supply, switching value input block, current sensor, data storage cell, communication unit, warning output unit are connected with embedded microprocessor with stabilized voltage supply and are connected, and current sensor is connected with the divide-shut brake coil.
Stabilized voltage supply is connected with the divide-shut brake coil.
Embedded microprocessor is 32 embedded microprocessors.
After adopting the technical program, the beneficial effects of the utility model are: embedded microprocessor detects the duty that the divide-shut brake output current wave signal that obtains is judged the divide-shut brake iron core according to the current sensor of divide-shut brake, mathematical model by the motion of divide-shut brake iron-core coil, obtain duty and the potential threat of divide-shut brake coil, for the divide-shut brake normal operation that guarantees high-voltage switch gear provides useful guarantee, whether oneself is through aging can to judge high-voltage switch gear by the divide-shut brake current waveform simultaneously, this can in time change switch for the user good reference frame is provided, to ensureing that user power utilization plays a positive role.
Description of drawings:
Fig. 1 is the structural drawing of the utility model divide-shut brake coil intelligent trouble diagnosis device;
Fig. 2 is the combined floodgate evaluation algorithm block diagram of the utility model divide-shut brake coil intelligent trouble diagnosis device;
Fig. 3 is the separating brake evaluation algorithm block diagram of the utility model divide-shut brake coil intelligent trouble diagnosis device.
Embodiment:
Now elaborate by reference to the accompanying drawings the technical program:
The divide-shut brake coil intelligent trouble diagnosis device of present embodiment includes 32 embedded microprocessors 1, switching value input block 2, current sensor 3, data storage cell 4, communication unit 5, warning output unit 6 and stabilized voltage supply 7, switching value input block 2, current sensor 3, data storage cell 4, communication unit 5, warning output unit 6 is connected with stabilized voltage supply and is connected with 32 embedded microprocessors 1 respectively, current sensor 3 is provided with two, are connected with closing coil with switching winding 8 respectively and are connected, stabilized voltage supply 7 and switching winding 8 are connected with closing coil and are connected, stabilized voltage supply 7 is responsible for power supply to 32 embedded microprocessors 1, switching winding 8 and closing coil 9, current sensor 3 are responsible for obtaining the current signal of switching winding 8 and closing coil 9 and are offered 32 embedded microprocessors 1.
Its course of work is: 32 embedded microprocessors 1 determine according to switching value input block 2 whether stabilized voltage supply 7 supplies with the DC voltage of switching winding 8 and closing coil 9 normal operations, in case it is electric that switching winding 8 and closing coil 9 get, current sensor 3 is input to 1 li of 32 embedded microprocessor after current signal being converted to digital quantity at once.32 embedded microprocessors 1 are kept at current data in the data storage cell 4, mathematical model based on switching winding 8 and closing coil 9, analyze state and the incipient fault of switching winding 8 and closing coil 9, if break down, warning output unit 6 prompting warning messages.Current data and intellectual analysis result can upload to host computer by communication unit 5.Communication unit 5 is supported the communication protocols such as Modbus and IEC 61850, only has host computer to satisfy above-mentioned communication protocol, can obtain the internal information of this device.
The above only is preferred embodiment of the present utility model, is not the utility model is done any pro forma restriction.Any those of ordinary skill in the art, do not breaking away from the technical solutions of the utility model scope situation, all can utilize method and the technology contents of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.So every content that does not break away from technical solutions of the utility model, the equivalence of doing according to shape, structure and the principle of the utility model changes, and all should be covered by in the protection domain of the present utility model.
Claims (3)
1. divide-shut brake coil intelligent trouble diagnosis device, it is characterized in that: include embedded microprocessor, switching value input block, current sensor, data storage cell, communication unit, warning output unit and stabilized voltage supply, switching value input block, current sensor, data storage cell, communication unit, warning output unit are connected with embedded microprocessor with stabilized voltage supply and are connected, and current sensor is connected with the divide-shut brake coil.
2. divide-shut brake coil intelligent trouble diagnosis device according to claim 1, it is characterized in that: stabilized voltage supply is connected with the divide-shut brake coil.
3. divide-shut brake coil intelligent trouble diagnosis device according to claim 1, it is characterized in that: embedded microprocessor is 32 embedded microprocessors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220491489.3U CN202794462U (en) | 2012-09-25 | 2012-09-25 | Intelligent fault diagnosis device for opening and closing coils |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220491489.3U CN202794462U (en) | 2012-09-25 | 2012-09-25 | Intelligent fault diagnosis device for opening and closing coils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202794462U true CN202794462U (en) | 2013-03-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220491489.3U Expired - Lifetime CN202794462U (en) | 2012-09-25 | 2012-09-25 | Intelligent fault diagnosis device for opening and closing coils |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202794462U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107515372A (en) * | 2017-08-21 | 2017-12-26 | 国网上海市电力公司 | A kind of switchgear defect intelligent detection and analysis system |
| CN107643482A (en) * | 2017-07-25 | 2018-01-30 | 陕西斯瑞新材料股份有限公司 | A kind of on off state judgment models based on coil current waveform |
| CN107884711A (en) * | 2017-12-18 | 2018-04-06 | 国家电网公司 | Breaker method of testing and terminal |
-
2012
- 2012-09-25 CN CN201220491489.3U patent/CN202794462U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643482A (en) * | 2017-07-25 | 2018-01-30 | 陕西斯瑞新材料股份有限公司 | A kind of on off state judgment models based on coil current waveform |
| CN107515372A (en) * | 2017-08-21 | 2017-12-26 | 国网上海市电力公司 | A kind of switchgear defect intelligent detection and analysis system |
| CN107884711A (en) * | 2017-12-18 | 2018-04-06 | 国家电网公司 | Breaker method of testing and terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |