CN106291149A - A kind of live detection method of 10kV switch cubicle - Google Patents
A kind of live detection method of 10kV switch cubicle Download PDFInfo
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- CN106291149A CN106291149A CN201510264330.6A CN201510264330A CN106291149A CN 106291149 A CN106291149 A CN 106291149A CN 201510264330 A CN201510264330 A CN 201510264330A CN 106291149 A CN106291149 A CN 106291149A
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Abstract
The live detection method of a kind of 10kV switch cubicle that the present invention provides, the method is first according to ultrasonic signal, the transient state ground electric wave signal of the detection of 10kV switch cabinet electrified, the health status of switch cubicle is tentatively judged, then it is improper switch cubicle for preliminary judged result, carry out deep judgement again, judge its abort situation being likely to occur, orders of severity etc., finally determine live detection result.This method solve 10kV switch cubicle to accurately reflect the health status of equipment, the most really the trouble location of locking equipment and the order of severity and the switch cubicle to different faults degree cannot carry out the problem that identical detection process can reduce work efficiency；Significantly improve different running environment, the accuracy of different detection positions live detection and effectiveness, improve the efficiency of live detection and judgement, it is ensured that the stable and reliability service of 10kV switch cubicle simultaneously；Field of power distribution and the technological progress of test fields of measurement are promoted.
Description
Technical field
The present invention relates to distribution and measure field tests, a kind of live detection method of 10kV switch cubicle.
Background technology
10kV switch cubicle is a kind of distribution switchgear.10kV switch cubicle mainly includes disconnecting switch, chopper and observing and controlling
Protection device, and by breaker operator and the motor-operating mechanism of protection.Disconnecting switch includes that inlet wire, outlet are kept apart
Close each one group, earthing isolator one group.Inlet wire, the effect of outlet disconnecting switch are to stop transport or inspection at 10kV switch cubicle
An obvious cut-off point is had, to guarantee safety with other electrical connection position when repairing.Earthing isolator is used for 10kV
The safety measure of line maintenance.Chopper stops power transmission for 10kV circuit, generally uses 10kV vacuum circuit breaker at present.
Chopper comprises motor-operating mechanism, is the separating brake of operating breaker, switch-on operating mechanism.Transformer station in power supply enterprise
In, measuring and controlling protective device generally uses microcomputer type comprehensive relay protection device and correlate meter at present to realize 10kV switch
The measurement of cabinet ruuning situation, control and relay protection.Microcomputer type comprehensive relay protection device can be supported 10kV switch cubicle
" four is distant " observing and controlling.
The live detection method of traditional 10kV switch cubicle is mainly based upon the metric data of measuring device with electricity, according to inspection
Survey the reference threshold that device itself is given, the health status of switch cubicle is carried out definite value judgement.Owing to switch cabinet electrified detects
Signal is strong and weak to be affected by environmental factors, the measurement many factors such as position, electric pressure, and single threshold criteria can not be accurate
The health status of reflection equipment, single detection technique and determination methods can not the fault bit of locking equipment the most really
Put, the order of severity etc., it addition, the switch cubicle for different faults degree carries out identical detection process, work can be increased again
Bear, reduce work efficiency.
Summary of the invention
In view of this, the present invention provides a kind of live detection method of 10kV switch cubicle, this method solves 10kV and opens
Close cabinet cannot accurately reflect equipment health status, cannot the most really the trouble location of locking equipment and the order of severity with
And the switch cubicle of different faults degree is carried out the problem that identical detection process can reduce work efficiency.
It is an object of the invention to be achieved through the following technical solutions:
A kind of live detection method of 10kV switch cubicle, described method comprises the steps:
Step 1: record the current ultrasonic signal of 10kV switch cubicle to be measured and the data of transient state ground electric wave signal respectively
Value；
Step 2: according to judgment threshold and side-play amount standard value, respectively to the ultrasonic signal of described 10kV switch cubicle and
Transient state ground electric wave signal carries out preliminary live detection, and obtains Preliminary detection result；
Step 3: if the ultrasonic signal of described 10kV switch cubicle and the described Preliminary detection result of transient state ground electric wave signal
Be normal condition, then detection terminates, it is judged that the operation conditions of described 10kV switch cubicle is good；
If the described Preliminary detection result of the ultrasonic signal of described 10kV switch cubicle and transient state ground electric wave signal all or has
Any one is abnormal condition, then enter step 4；
Step 4: described ultrasonic signal and transient state ground electric wave signal to described 10kV switch cubicle carry out depth detection,
And then judge the operation conditions of described 10kV switch cubicle.
Preferably, described abnormal condition be in turn divided into from low to high according to the order of severity alert status, abnormality and
Severe fault condition.
Preferably, described step 2, including:
2-1. selects the data value of a kind of signal and the described judgment threshold of correspondence thereof and side-play amount standard value, described signal packet
Include ultrasonic signal and transient state ground electric wave signal；
2-2. relatively and analyzes the corresponding judgment threshold of current described data value and side-play amount standard value, obtains described
Preliminary detection result；
Described judgment threshold is first threshold, Second Threshold and the 3rd threshold value being incremented by successively；Described side-play amount standard value is
The first side-play amount standard value, the second side-play amount standard value and the 3rd side-play amount standard value being incremented by successively；
2-3. selects the another kind of data value of described signal and the judgment threshold of correspondence thereof and side-play amount standard value；Repeat step
2-2, until obtaining described ultrasonic signal and the described Preliminary detection knot of transient state ground electric wave signal of described 10kV switch cubicle
Really.
Preferably, described 2-2, including:
Described data value more current for 2-2-1. and described first threshold；
If described data value is less than described first threshold, then enter step 2-2-2；
If described data value is more than or equal to described first threshold, then enter step 2-2-3；
Data value described in 2-2-2. horizontal analysis, compares its side-play amount and the first side-play amount standard value and the second side-play amount standard
Value；
If the side-play amount of described data value is less than described first side-play amount standard value, the operation shape of the most described 10kV switch cubicle
The Preliminary detection result of state is normal condition；
If the side-play amount of described data value is more than or equal to described first side-play amount standard value and less than or equal to described second skew
Amount, the Preliminary detection result of the running status of the most described 10kV switch cubicle is abnormality；
If the side-play amount of described data value is more than described second side-play amount standard value, the operation shape of the most described 10kV switch cubicle
The Preliminary detection result of state is severe fault condition；
The more described data value of 2-2-3. and described Second Threshold and the 3rd threshold value；
If described data value is more than described 3rd threshold value, the Preliminary detection result of the running status of the most described 10kV switch cubicle
For severe fault condition；
If described data value is more than or equal to Second Threshold and less than or equal to the 3rd threshold value, the operation of the most described 10kV switch cubicle
The Preliminary detection result of state is abnormality；
If described data value is less than described Second Threshold, then enter step 2-2-4；
Data value described in 2-2-4. vertical analysis, compares its side-play amount and described 3rd side-play amount standard value；
If the side-play amount of described data value is more than or equal to described 3rd side-play amount standard value, the fortune of the most described 10kV switch cubicle
The Preliminary detection result of row state is severe fault condition；
If the side-play amount of described data value is less than described 3rd side-play amount standard value, the operation shape of the most described 10kV switch cubicle
The Preliminary detection result of state is alert status.
Preferably, described judgment threshold and side-play amount standard value all in accordance with the on-the-spot temperature of the detection of described 10kV switch cubicle,
Humidity or measure the difference of position and be set to different values.
Preferably, if detecting at the beginning of described ultrasonic signal and the transient state ground electric wave signal of the described 10kV switch cubicle obtained
Step testing result is different, then using the higher described Preliminary detection result of the order of severity as final Preliminary detection result.
Preferably, described step 4, including:
The described ultrasonic signal of 10kV switch cubicle described in integrated application and described transient state ground electric wave signal carry out self study
Intelligent Measurement and self-adapting intelligent detection；And then determine abnormality and the trouble unit of described 10kV switch cubicle, and
Depth detection result to described ultrasonic signal.
From above-mentioned technical scheme it can be seen that the invention provides a kind of live detection method of 10kV switch cubicle, should
Method is first according to ultrasonic signal, the transient state ground electric wave signal of the detection of 10kV switch cabinet electrified, the health to switch cubicle
State tentatively judges, is then improper switch cubicle for preliminary judged result, then carries out deep judgement, it is judged that
Its abort situation being likely to occur, order of severity etc., finally determine live detection result.This method solve 10kV to open
Close cabinet cannot accurately reflect equipment health status, cannot the most really the trouble location of locking equipment and the order of severity with
And the switch cubicle of different faults degree is carried out the problem that identical detection process can reduce work efficiency；Significantly improve not
Same running environment, the accuracy of different detection positions live detection and effectiveness, improve live detection and judgement simultaneously
Efficiency, it is ensured that the stable and reliability service of 10kV switch cubicle；Field of power distribution and the skill of test fields of measurement are promoted
Art progress.
With immediate prior art ratio, the technical scheme that the present invention provides has a following excellent effect:
1, in technical scheme provided by the present invention, by according to ultrasonic signal, transient state ground electric wave signal to 10kV
The running status of switch cubicle band tentatively judges, is then improper switch cubicle for preliminary judged result, then carries out
Deeply judge, it is judged that its abort situation being likely to occur, order of severity etc., finally determine live detection result.The method
Solve 10kV switch cubicle cannot accurately reflect equipment health status, cannot the fault portion of locking equipment the most really
Position and the order of severity and the switch cubicle to different faults degree carry out identical detection process and can reduce asking of work efficiency
Topic；Significantly improve different running environment, the accuracy of different detection positions live detection and effectiveness, improve simultaneously
Live detection and the efficiency of judgement, it is ensured that the stable and reliability service of 10kV switch cubicle；Promoted field of power distribution and
The technological progress of test fields of measurement.
2, technical scheme provided by the present invention, by the different temperatures obtained according to on-the-spot operating statistic analysis, humidity,
Measure position and set decision threshold, it is ensured that accuracy and the effectiveness to the detection of 10kV switch cubicle band.
3, technical scheme provided by the present invention, by integrated application fixed value estimation, horizontal analysis method and vertical analysis
Method, comprehensively and have effectively achieved the detection of 10kV switch cubicle band, improves the efficiency of live detection and judgement simultaneously.
4, technical scheme provided by the present invention, going deep into judgement is according to the preliminary judged result of switch cubicle, application self study,
Abort situation, the order of severity etc. are determined whether by the intelligent methods such as self adaptation, finally determine live detection result；
Solve 10kV switch cubicle cannot accurately reflect equipment health status, cannot the fault portion of locking equipment the most really
Position and the order of severity and the switch cubicle to different faults degree carry out identical detection process and can reduce asking of work efficiency
Topic.
5, the technical scheme that the present invention provides, is widely used, has significant Social benefit and economic benefit.
Accompanying drawing explanation
Fig. 1 is the flow chart of the live detection method of a kind of 10kV switch cubicle of the present invention；
Fig. 2 be the present invention detection method in the flow chart of step 2；
Fig. 3 be in the live detection method second step of certain 10kV switch cubicle of the present invention relatively and analyze current data
Judgment threshold that value is corresponding and side-play amount standard value also obtain the flow chart of Preliminary detection result.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Base
In embodiments of the invention, those of ordinary skill in the art obtained under not making creative work premise all its
His embodiment, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, the invention provides a kind of live detection method of 10kV switch cubicle, comprise the steps:
Step 1: record the current ultrasonic signal of 10kV switch cubicle to be measured and the data of transient state ground electric wave signal respectively
Value；
Step 2: according to judgment threshold and side-play amount standard value, ultrasonic signal and the transient state to 10kV switch cubicle respectively
Ground electric wave signal carries out preliminary live detection, and obtains Preliminary detection result；
Wherein, it is judged that threshold value is by the temperature at detection scene, humidity and the measurement position of statistical analysis 10kV switch cubicle
Set；
Step 3: if the Preliminary detection result of the ultrasonic signal of 10kV switch cubicle and transient state ground electric wave signal is normally
State, then detection terminates, it is judged that the operation conditions of 10kV switch cubicle is good；
If the Preliminary detection result of the ultrasonic signal of 10kV switch cubicle and transient state ground electric wave signal all or has any one to be
Abnormal condition, then enter step 4；
Wherein, abnormal condition is in turn divided into alert status, abnormality and seriously event from low to high according to the order of severity
Barrier state；
Step 4: ultrasonic signal and transient state ground electric wave signal to 10kV switch cubicle carry out depth detection, and then judge
The operation conditions of 10kV switch cubicle.
As in figure 2 it is shown, step 2 includes:
2-1. selects the data value of a kind of signal and the judgment threshold of correspondence thereof and side-play amount standard value, and signal includes ultrasound wave
Signal and transient state ground electric wave signal；
2-2. relatively and analyzes the corresponding judgment threshold of current data value and side-play amount standard value, obtains Preliminary detection
Result；Judgment threshold is first threshold, Second Threshold and the 3rd threshold value being incremented by successively；Side-play amount standard value is for pass successively
The first side-play amount standard value, the second side-play amount standard value and the 3rd side-play amount standard value increased；Including:
Data value that 2-2-1. is more current and first threshold；
If data value is less than first threshold, then enter step 2-2-2；
If data value is more than or equal to first threshold, then enter step 2-2-3；
2-2-2. horizontal analysis data value, compares its side-play amount and the first side-play amount standard value and the second side-play amount standard value；
If the side-play amount of data value is less than the first side-play amount standard value, the then Preliminary detection of the running status of 10kV switch cubicle
Result is normal condition；
If the side-play amount of data value is more than or equal to the first side-play amount standard value and less than or equal to the second side-play amount, then 10kV opens
The Preliminary detection result of the running status closing cabinet is abnormality；
If the side-play amount of data value is more than the second side-play amount standard value, the then Preliminary detection of the running status of 10kV switch cubicle
Result is severe fault condition；
2-2-3. compares data value and Second Threshold and the 3rd threshold value；
If data value is more than the 3rd threshold value, then the Preliminary detection result of the running status of 10kV switch cubicle is catastrophe failure shape
State；
If data value is more than or equal to Second Threshold and less than or equal to the 3rd threshold value, then at the beginning of the running status of 10kV switch cubicle
Step testing result is abnormality；
If data value is less than Second Threshold, then enter step 2-2-4；
2-2-4. vertical analysis data value, compares its side-play amount and the 3rd side-play amount standard value；
If the side-play amount of data value is more than or equal to the 3rd side-play amount standard value, then the running status of 10kV switch cubicle is preliminary
Testing result is severe fault condition；
If the side-play amount of data value is less than the 3rd side-play amount standard value, the then Preliminary detection of the running status of 10kV switch cubicle
Result is alert status；
Wherein, if detecting ultrasonic signal and the Preliminary detection result of transient state ground electric wave signal of the 10kV switch cubicle obtained
Difference, then using the higher Preliminary detection result of the order of severity as final Preliminary detection result.
2-3. selects the another kind of data value of signal and the judgment threshold of correspondence thereof and side-play amount standard value；Repeat step 2-2,
Until obtaining ultrasonic signal and the Preliminary detection result of transient state ground electric wave signal of 10kV switch cubicle.
Wherein, step 4 includes:
The described ultrasonic signal of 10kV switch cubicle described in integrated application and described transient state ground electric wave signal carry out self study
Intelligent Measurement and self-adapting intelligent detection；And then determine abnormality and the trouble unit of described 10kV switch cubicle, and
Depth detection result to described ultrasonic signal.
The present invention is as a example by the Preliminary detection first carrying out ultrasonic signal, it is provided that the live detection side of a kind of 10kV switch cubicle
The application examples of method, including:
The first step: record the current ultrasonic signal of 10kV switch cubicle to be measured and the data of transient state ground electric wave signal respectively
Value；
As it is shown on figure 3, second step, including:
1. set the judgment threshold A corresponding for data value H of ultrasonic signal1、A2And A3And side-play amount standard value Δ
B1、ΔB2With Δ B3；
2. include；
(1). compare data value H and first threshold A of ultrasonic signal1；
If H is < A1, then step (2) is entered；
If H >=A1, then step (3) is entered；
(2). horizontal analysis data value H, compares its offset Δ H and the first side-play amount standard value Δ B1With the second skew
Amount standard value Δ B2；
If Δ H < Δ is B1, then the Preliminary detection result of the running status of 10kV switch cubicle is normal condition；
If Δ B1≤ΔH≤ΔB2, then the Preliminary detection result of the running status of 10kV switch cubicle is abnormality；
If Δ H > Δ is B2, then the Preliminary detection result of the running status of 10kV switch cubicle is severe fault condition；
(3). compare data value H and Second Threshold A2And the 3rd threshold value A3；
If H > A3, then the Preliminary detection result of the running status of 10kV switch cubicle is severe fault condition；
If A2≤ΔH≤A3, then the Preliminary detection result of the running status of 10kV switch cubicle is abnormality；
If H is < A2, then step (4) is entered；
(4). vertical analysis data value H, compares its offset Δ H and the 3rd side-play amount standard value Δ B3；
If Δ H >=Δ B3, then the Preliminary detection result of the running status of 10kV switch cubicle is severe fault condition；
If Δ H < Δ is B3, then the Preliminary detection result of the running status of 10kV switch cubicle is alert status；
Wherein, if detecting ultrasonic signal and the Preliminary detection result of transient state ground electric wave signal of the 10kV switch cubicle obtained
Difference, then using the higher Preliminary detection result of the order of severity as final Preliminary detection result；Such as, should in use-case,
If the Preliminary detection result of the ultrasonic signal of 10kV switch cubicle is severe fault condition, transient state ground electric wave signal is early warning
State, then judge that the running status of this 10kV switch cubicle is severe fault condition.
3. set judgment threshold corresponding for data value G and the side-play amount standard value of transient state ground electric wave signal；Repeat step
2-2, until obtaining ultrasonic signal and the Preliminary detection result of transient state ground electric wave signal of 10kV switch cubicle.
3rd step: if the Preliminary detection result of the ultrasonic signal of 10kV switch cubicle and transient state ground electric wave signal is normally
State, then detection terminates, it is judged that the operation conditions of 10kV switch cubicle is good；
If the Preliminary detection result of the ultrasonic signal of 10kV switch cubicle and transient state ground electric wave signal all or has any one to be
Abnormal condition, then enter step 4；
Wherein, abnormal condition is in turn divided into alert status, abnormality and seriously event from low to high according to the order of severity
Barrier state；
4th step: the described ultrasonic signal of 10kV switch cubicle described in integrated application and described transient state ground electric wave signal are gone forward side by side
Row self study Intelligent Measurement and self-adapting intelligent detection；And then determine abnormality and the fault portion of described 10kV switch cubicle
Part, and obtain the depth detection result of described ultrasonic signal.
Above example is only in order to illustrate that technical scheme is not intended to limit, although with reference to above-described embodiment to this
Invention has been described in detail, and the detailed description of the invention of the present invention still can be entered by those of ordinary skill in the field
Row amendment or equivalent, and these are without departing from any amendment of spirit and scope of the invention or equivalent, it is equal
Within the claims of the present invention that application is awaited the reply.
Claims (7)
1. the live detection method of a 10kV switch cubicle, it is characterised in that described method comprises the steps:
Step 1: record the current ultrasonic signal of 10kV switch cubicle to be measured and the data of transient state ground electric wave signal respectively
Value；
Step 2: according to judgment threshold and side-play amount standard value, respectively to the ultrasonic signal of described 10kV switch cubicle and
Transient state ground electric wave signal carries out preliminary live detection, and obtains Preliminary detection result；
Step 3: if the ultrasonic signal of described 10kV switch cubicle and the described Preliminary detection result of transient state ground electric wave signal
Be normal condition, then detection terminates, it is judged that the operation conditions of described 10kV switch cubicle is good；
If the described Preliminary detection result of the ultrasonic signal of described 10kV switch cubicle and transient state ground electric wave signal all or has
Any one is abnormal condition, then enter step 4；
Step 4: described ultrasonic signal and transient state ground electric wave signal to described 10kV switch cubicle carry out depth detection,
And then judge the operation conditions of described 10kV switch cubicle.
2. detection method as claimed in claim 1, it is characterised in that described abnormal condition according to the order of severity from
Low to high it is in turn divided into alert status, abnormality and severe fault condition.
3. detection method as claimed in claim 2, it is characterised in that described step 2, including:
2-1. selects the data value of a kind of signal and the described judgment threshold of correspondence thereof and side-play amount standard value, described signal packet
Include ultrasonic signal and transient state ground electric wave signal；
2-2. relatively and analyzes the corresponding judgment threshold of current described data value and side-play amount standard value, obtains described
Preliminary detection result；
Described judgment threshold is first threshold, Second Threshold and the 3rd threshold value being incremented by successively；Described side-play amount standard value is
The first side-play amount standard value, the second side-play amount standard value and the 3rd side-play amount standard value being incremented by successively；
2-3. selects the another kind of data value of described signal and the judgment threshold of correspondence thereof and side-play amount standard value；Repeat step
2-2, until obtaining described ultrasonic signal and the described Preliminary detection knot of transient state ground electric wave signal of described 10kV switch cubicle
Really.
4. detection method as claimed in claim 3, it is characterised in that described 2-2, including:
Described data value more current for 2-2-1. and described first threshold；
If described data value is less than described first threshold, then enter step 2-2-2；
If described data value is more than or equal to described first threshold, then enter step 2-2-3；
Data value described in 2-2-2. horizontal analysis, compares its side-play amount and the first side-play amount standard value and the second side-play amount standard
Value；
If the side-play amount of described data value is less than described first side-play amount standard value, the operation shape of the most described 10kV switch cubicle
The Preliminary detection result of state is normal condition；
If the side-play amount of described data value is more than or equal to described first side-play amount standard value and less than or equal to described second skew
Amount, the Preliminary detection result of the running status of the most described 10kV switch cubicle is abnormality；
If the side-play amount of described data value is more than described second side-play amount standard value, the operation shape of the most described 10kV switch cubicle
The Preliminary detection result of state is severe fault condition；
The more described data value of 2-2-3. and described Second Threshold and the 3rd threshold value；
If described data value is more than described 3rd threshold value, the Preliminary detection result of the running status of the most described 10kV switch cubicle
For severe fault condition；
If described data value is more than or equal to Second Threshold and less than or equal to the 3rd threshold value, the operation of the most described 10kV switch cubicle
The Preliminary detection result of state is abnormality；
If described data value is less than described Second Threshold, then enter step 2-2-4；
Data value described in 2-2-4. vertical analysis, compares its side-play amount and described 3rd side-play amount standard value；
If the side-play amount of described data value is more than or equal to described 3rd side-play amount standard value, the fortune of the most described 10kV switch cubicle
The Preliminary detection result of row state is severe fault condition；
If the side-play amount of described data value is less than described 3rd side-play amount standard value, the operation shape of the most described 10kV switch cubicle
The Preliminary detection result of state is alert status.
5. the detection method as described in any one of claims 1 to 3, it is characterised in that described judgment threshold and skew
Amount standard value is set to not all in accordance with the temperature at detection scene, humidity or the difference of measurement position of described 10kV switch cubicle
Same value.
6. the detection method as described in any one of claim 2 to 4, it is characterised in that if detection obtain described
The described ultrasonic signal of 10kV switch cubicle is different, then with the order of severity with the Preliminary detection result of transient state ground electric wave signal
Higher described Preliminary detection result is as final Preliminary detection result.
7. detection method as claimed in claim 2, it is characterised in that described step 4, including:
The described ultrasonic signal of 10kV switch cubicle described in integrated application and described transient state ground electric wave signal carry out self study
Intelligent Measurement and self-adapting intelligent detection；And then determine abnormality and the trouble unit of described 10kV switch cubicle, and
Depth detection result to described ultrasonic signal.
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| CN108919075A (en) * | 2018-08-03 | 2018-11-30 | 上海金艺检测技术有限公司 | High-tension switch cabinet partial discharge monitoring method for early warning |
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| CN110752672B (en) * | 2019-11-01 | 2022-03-08 | 深圳供电局有限公司 | Fault alarm system and method for low-voltage distribution network |
| CN112200220A (en) * | 2020-09-18 | 2021-01-08 | 中国航空无线电电子研究所 | Health monitoring method for airplane airborne equipment based on data induction |
| CN113156304A (en) * | 2020-10-16 | 2021-07-23 | 国电泉州热电有限公司 | Switch equipment detection method and device |
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