CN104914300A - Method for improving integrated protection device accident tripping optical isolation acting power - Google Patents
Method for improving integrated protection device accident tripping optical isolation acting power Download PDFInfo
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- CN104914300A CN104914300A CN201510250111.2A CN201510250111A CN104914300A CN 104914300 A CN104914300 A CN 104914300A CN 201510250111 A CN201510250111 A CN 201510250111A CN 104914300 A CN104914300 A CN 104914300A
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- protection device
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- stop valve
- emergency stop
- valve trip
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Abstract
The invention discloses a method for improving integrated protection device accident tripping optical isolation acting power. The method comprises the following steps that: voltage is applied to integrated protection device accident tripping optical isolation openings X2:33 and X2:18 from 0v until an accident tripping outlet appears with the lighting of a panel alarm lamp adopted as a as reference; and three sets of acting voltage and acting current are recorded. With the technical scheme of the invention adopted, current and voltage values at two ends of accident tripping optical isolation can be measured efficiently and accurately, and therefore, the minimum acting power and the rated acting power of the accident tripping optical isolation can be measured accurately.
Description
Technical field
The present invention relates to power generation plant technology field, be specifically related to a kind ofly improve the method for complex protection device emergency stop valve trip light every operating power.
Background technology
" thinking that certain power plant's DC earthing causes eliminating magnetism of generator switch trip to be shut down and innovative approach " that certain power plant writes, thinks and causes the final arch-criminal of accident to be that exit relay operating power is too little, poor anti jamming capability.Take and seal in the method that the powerful relay of one-level realizes increasing antijamming capability.But this method exists increases loop; extend and export actuation time; and exist under certain conditions can not the hidden danger (the G-T protective exit relay jumping ABB field discharge circuit breaker occurred as multiple power plant once occurred causing because many one-level weight motor type relaies field discharge circuit breaker can not reliably tripping, and finally transformation transformer unit exit relay problem is just solved) of reliable tripping field discharge circuit breaker.
Summary of the invention
The product of problem to be solved by this invention to be company's 1, No. 2 machine 6KV complex protection devices be Xiamen ABB; because its microcomputer protecting device light, every operating power low (only having 0.124W under actual measurement rated voltage), poor anti jamming capability, causes and runs multiple devices breaker tripping and closing repeatedly.
In order to solve the said equipment problem, the technical scheme that the present invention takes is: a kind ofly improve the method for complex protection device emergency stop valve trip light every operating power, and the actual effect of this invention detects and comprises following method step:
(1) to complex protection device emergency stop valve trip light every mouth X2:33, X2:18 making alive, from 0V be increased to gradually emergency stop valve trip outlet, light up as benchmark with panel Alarm lamp, operation of recording voltage and action current;
(2) full voltage DC110V is added to complex protection device emergency stop valve trip light every mouth, operation of recording electric current;
(3) record light every operation voltage and action current value according to step (1), calculate average motion voltage and average action current value, record light every action current value according to step (2), calculate average motion current value.
(4) according to step (1) to (4) measure, result of calculation, calculate emergency stop valve trip light every minimum movements power and light every specified operating power value.
Preferably, described complex protection device adopts the Xiamen ABB product of 6KV.
Preferably, the surveying instrument adopted in described method step has triumphant return tester.
Preferably, described step (1) and the middle surveying instrument adopted of step (2) have microampere meter.
Preferably, described triumphant return tester adopts model to be KX-2000A+ mutual inductor characteristic integrated tester.
Beneficial effect: adopt technical scheme of the present invention, the tripping operation light that can record that accidents happened efficiently, accurately every electric current, the magnitude of voltage at two ends, then can record more accurately emergency stop valve trip light every minimum movements power and specified operating power; The safe range whether this detection method meets national regulation for detection complex protection device light every operating power is very easy, reliable, workable; Extensively promote the use of in simple, reasonable, the applicable industry of the inventive method.
Accompanying drawing explanation
Fig. 1 is that light of the present invention is every operating power testing circuit figure;
Embodiment
As shown in Figure 1, the invention process method is at light every parallel resistance shunt capacitance, wherein shunt capacitance act as Anti-Jamming, be used for absorbing disturbing pulse, increase resistance for improving light every operating power, improve the conducting threshold of optocoupler, restriction flows into the peak point current of light every port.Parameter choose: choosing resistance is that (resistor power must be greater than P=U for 10K Ω, 2W
2/ R=110V
2/ 10K=1.2W, wherein 110V is complex protection device working power).
Embodiment 1: a kind ofly improve the detection method of complex protection device emergency stop valve trip light every operating power, comprise following method step: (1) to complex protection device emergency stop valve trip light every mouth X2:33, X2:18 making alive, emergency stop valve trip outlet is increased to gradually from 0V, benchmark is lit up as with panel Alarm lamp, record 3 groups of operation voltages and action current, as shown in Table 1; (2) record light every operation voltage and action current value according to step (1), calculate average motion voltage and average action current value; (3) according to step (1) to (2) measure, result of calculation, calculate emergency stop valve trip light every minimum movements power.
Table one:
| Operation voltage (V) | 56 | 55 | 56 | 56 |
| Action current (μ A) | 152 | 134 | 149.6 | 149.9 |
Embodiment 2: a kind ofly improve the detection method of complex protection device emergency stop valve trip light every operating power, comprises following method step: (1) adds full voltage DC110V to complex protection device emergency stop valve trip light every mouth, operation of recording electric current, as shown in Table 2; (2) record light every action current value according to step (1), calculate average motion current value; (3) according to step (1) to (2) measure, result of calculation, calculate emergency stop valve trip light every specified operating power value.
Table two:
| Apply voltage (V) | 110 | 110 | 110 |
| Action current (μ A) | 1126 | 1126.4 | 1125.2 |
Known after above embodiment method step, light every minimum movements power be 56V*0.15mA=8.4mW=0.0084W; Light every specified operating power be 110V*1.13mA=124mW=0.124W.To be equivalent to light, every operating power net increase 1.2W, compare its original operating power 0.0124W and improve 100 times after the parallel coupled resistor capacitor of two ends to light, substantially increase light every Reliability of Microprocessor.
Obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (5)
1. improve complex protection device emergency stop valve trip light every a detection method for operating power, it is characterized in that: comprise following method step:
(1) to complex protection device emergency stop valve trip light every mouth X2:33, X2:18 making alive, from 0V be increased to gradually emergency stop valve trip outlet, light up as benchmark with panel Alarm lamp, operation of recording voltage and action current;
(2) full voltage DC110V is added to complex protection device emergency stop valve trip light every mouth, operation of recording electric current;
(3) record light every operation voltage and action current value according to step (1), calculate average motion voltage and average action current value, record light every action current value according to step (2), calculate average motion current value.
(4) according to step (1) to (4) measure, result of calculation, calculate emergency stop valve trip light every minimum movements power and light every specified operating power value.
2. a kind of complex protection device emergency stop valve trip light that improves according to claim 1 is every the detection method of operating power, it is characterized in that: described complex protection device adopts the Xiamen ABB product of 6KV.
3. a kind of complex protection device emergency stop valve trip light that improves according to claim 1 is every the detection method of operating power, it is characterized in that: the surveying instrument adopted in described method step has triumphant return tester.
4. a kind of complex protection device emergency stop valve trip light that improves according to claim 1 is every the detection method of operating power, it is characterized in that: described step (1) and the middle surveying instrument adopted of step (2) have microampere meter.
5. a kind of complex protection device emergency stop valve trip light that improves according to claim 3 is every the detection method of operating power, it is characterized in that: described triumphant return tester adopts model to be KX-2000A+ mutual inductor characteristic integrated tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510250111.2A CN104914300A (en) | 2015-05-15 | 2015-05-15 | Method for improving integrated protection device accident tripping optical isolation acting power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510250111.2A CN104914300A (en) | 2015-05-15 | 2015-05-15 | Method for improving integrated protection device accident tripping optical isolation acting power |
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| CN104914300A true CN104914300A (en) | 2015-09-16 |
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| CN201510250111.2A Pending CN104914300A (en) | 2015-05-15 | 2015-05-15 | Method for improving integrated protection device accident tripping optical isolation acting power |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261298A (en) * | 2008-04-17 | 2008-09-10 | 山东电力研究院 | Detection method for seeking cause of transformer substation switch fault-free trip caused power failure |
| CN103267923A (en) * | 2013-05-10 | 2013-08-28 | 陈肖粟 | Safety grounding all-purpose online detector |
| CN103311884A (en) * | 2013-04-23 | 2013-09-18 | 上海良信电器股份有限公司 | Non-stick overvoltage and under-voltage protector with leakage protection function |
| CN103969503A (en) * | 2013-01-31 | 2014-08-06 | 国家电网公司 | Relay acting power testing device |
-
2015
- 2015-05-15 CN CN201510250111.2A patent/CN104914300A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261298A (en) * | 2008-04-17 | 2008-09-10 | 山东电力研究院 | Detection method for seeking cause of transformer substation switch fault-free trip caused power failure |
| CN103969503A (en) * | 2013-01-31 | 2014-08-06 | 国家电网公司 | Relay acting power testing device |
| CN103311884A (en) * | 2013-04-23 | 2013-09-18 | 上海良信电器股份有限公司 | Non-stick overvoltage and under-voltage protector with leakage protection function |
| CN103267923A (en) * | 2013-05-10 | 2013-08-28 | 陈肖粟 | Safety grounding all-purpose online detector |
Non-Patent Citations (1)
| Title |
|---|
| 靳风魁等: "继电器动作功率偏小导致330kV整流变本体保护误动的事故分析", 《科技风》 * |
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Application publication date: 20150916 |