CN105203947A - Performance characteristic testing method of high-voltage circuit breaker - Google Patents
Performance characteristic testing method of high-voltage circuit breaker Download PDFInfo
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- CN105203947A CN105203947A CN201510535868.6A CN201510535868A CN105203947A CN 105203947 A CN105203947 A CN 105203947A CN 201510535868 A CN201510535868 A CN 201510535868A CN 105203947 A CN105203947 A CN 105203947A
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Abstract
本发明属于移动电源技术领域，涉及一种按照以下步骤进行：首先高压断路器状态两端用接地线或接地刀闸可靠接地；再将断路器动作特性测试专用仪器接通电源、保护接地；用测试线将仪器与断路器连接好；启动断路器动作特性测试专用仪器，调整到断路器动作特性测量功能模块；将原来处于分断状态（闭合状态）的断路器合上（分断），测出断路器合（分）闸动作特性参数，将数据记录；测试结束，断开仪器电源，手持可延长绝缘杆将高空接线钳取下，恢复安全措施。本发明拥有安全可靠、效率高、成本低和使用方便的优点，本发明广泛适用于高压断路器动测试。
The invention belongs to the technical field of mobile power supplies, and relates to a method which is carried out according to the following steps: firstly, the two ends of the high-voltage circuit breaker are reliably grounded with a grounding wire or a grounding switch; Connect the instrument to the circuit breaker with the test line; start the special instrument for testing the action characteristics of the circuit breaker, and adjust to the function module for measuring the action characteristics of the circuit breaker; close (break) the circuit breaker that was originally in the breaking state (closed state) to measure the open circuit The characteristic parameters of closing (opening) of the device, and record the data; after the test, disconnect the power supply of the instrument, hold the extendable insulating rod to remove the high-altitude wiring pliers, and restore the safety measures. The invention has the advantages of safety, reliability, high efficiency, low cost and convenient use, and is widely applicable to dynamic testing of high-voltage circuit breakers.
Description
Technical field
The invention belongs to State-Inspect of High-Voltage Circuit technical field, relate to a kind of primary cut-out acting characteristic method of testing.
Background technology
Primary cut-out is a kind of electrical equipment the most key in device for switching, and it is as insulation and the device of arc extinguishing, is requisite equipment in generating plant and electric substation's power distribution equipment.Control and protection dual role born by primary cut-out in electric system, and the quality of its state directly affects the safe operation of electric system.
High-tension switch gear point, closing time and alternate same period performance, except the normal deciliter function directly affecting switch and safe operation, be also related to the safe switching of system miscellaneous equipment, the height of internal overvoltage, correct measurement carried out to it significant.Along with high voltage power transmission grade is more and more higher, the charged interval that works produces very high induced voltage to the isolating switch being in maintenance, and in order to ensure the safety of tester and instrument, primary cut-out, when overhauling, utilizes grounding switch to connect the earth usually.On market, common isolating switch Dynamic Characteristics instrument is when detecting primary cut-out, and primary cut-out must have one end unsettled, and such detection method had both added the labour intensity of service work personnel, turn increased potential safety hazard.During breaker operating characteristic test, existing experimental technique all requires that tested isolating switch Single port removes ground connection, and under this kind of state, tested isolating switch may exist induced voltage, there is certain potential safety hazard.
Summary of the invention
The object of the invention is to the deficiency for existing portable power source, the primary cut-out acting characteristic method of testing that a kind of volume is little, structure simple and consume energy little is provided.
To achieve these goals, present invention employs following technical scheme:
A kind of primary cut-out acting characteristic method of testing, is characterized in that: concrete steps are as follows:
A () first checks the state of primary cut-out, and be connected with the earth by the earth terminal looking into primary cut-out two ends;
B () breaker operating characteristic tester and power supply connect with the earth, and breaker operating characteristic tester is adjusted to dormant state;
C () uses three-phase test lead to be connected with the two ends of primary cut-out by breaker operating characteristic tester, be connected by the output port of breaker operating characteristic tester with primary cut-out terminal box simultaneously;
D () starts being adjusted to property of breaker operating characteristic tester measurement function test interface;
E () touches deciliter signal control knob in primary cut-out action control loop, control signal output port through breaker operating characteristic tester and be transferred to primary cut-out terminal box, primary cut-out is made to make a deciliter action, breaker operating characteristic tester is to primary cut-out input test electric current simultaneously, the data detected are passed to breaker operating characteristic tester by primary cut-out, then data are after the process of breaker operating characteristic tester, after breaker operating characteristic tester related data stores, and simultaneously breaker operating characteristic tester is by the parameter display that detects out, recorded by testing crew,
F () test terminates, disconnect instrument power source, overhead jointing clamp takes off by the hand-held insulating bar that extends, and recovers safety practice.
Measuring current described in above step (e) is 10A.
Three-phase test lead described in above step (c) is the six roots of sensation, and every root test lead is made up of pressure-wire and current line.
Above-described breaker operating characteristic tester comprises display screen, keyboard, storer, processing module and acquisition module, and processing module is connected with display screen, keyboard, storer and acquisition module respectively.
More than above-described acquisition module frequency 1M hertz.
Principle of work of the present invention:
Utilize be isolating switch place loop fracture when separating ground connection equivalent resistance and fracture closed type fracture directly hinder and carry out testing from the different of ground connection equivalent resistance parallel resistance value.
Beneficial effect of the present invention:
The present invention by carrying out breaker operating characteristic measurement under isolating switch bilateral Grounding, when utilizing this technology, the ground connection of tested isolating switch two ports, test lead is clipped on request, just this instrument can be used to measure change in voltage situation on the measuring circuit equivalent resistance of isolating switch place, then by software and hardware process, the acting characteristic parameter of tested isolating switch is demonstrated.The present invention has safe and reliable, that efficiency is high, cost is low and easy to use advantage, and the present invention is widely used in the dynamic test of primary cut-out.
Accompanying drawing explanation
Accompanying drawing 1 is the primary cut-out acting characteristic method of testing anatomical connectivity schematic diagram of embodiment;
Accompanying drawing 2 is primary cut-out acting characteristic test catenation principle schematic diagram of embodiment;
Accompanying drawing 3 is primary cut-out acting characteristic test circuit principle schematic of embodiment.
Identify in figure: 1-the earth, 2-breaker operating characteristic tester, 3-primary cut-out, 4-primary cut-out terminal box, 5-ground connection equivalent resistance R1,6-ground connection equivalent resistance R2,20-keyboard, 21-display screen, 22-signal output part, 23-signal input part.
Embodiment
With reference to the accompanying drawings, the specific embodiment of the present invention is further described in detail.
Embodiment 1:
As shown in Figure 1, primary cut-out acting characteristic method of testing, concrete steps are as follows:
A () first checks the state of primary cut-out, and be connected with the earth by the earth terminal looking into primary cut-out two ends;
B () breaker operating characteristic tester and power supply connect with the earth, and breaker operating characteristic tester is adjusted to dormant state;
C () uses six roots of sensation three-phase test lead (wherein every root test lead is made up of pressure-wire and current line), three of breaker operating characteristic tester pairs of signals are exported and is connected with the two ends of primary cut-out with input signal port, the output port of breaker operating characteristic tester is connected with primary cut-out terminal box simultaneously;
D () starts being adjusted to property of breaker operating characteristic tester measurement function test interface;
E () touches deciliter signal control knob in primary cut-out action control loop, control signal output port through breaker operating characteristic tester and be transferred to primary cut-out terminal box, primary cut-out is made to make a deciliter action, breaker operating characteristic tester is to primary cut-out input test electric current simultaneously, signal is passed to breaker operating characteristic tester by each phase port of primary cut-out three-phase by six roots of sensation p-wire, after the process of breaker operating characteristic tester, memory storage related data, breaker operating characteristic parameter display on a display screen simultaneously, recorded by testing crew,
F () test terminates, disconnect instrument power source, overhead jointing clamp takes off by the hand-held insulating bar that extends, and recovers safety practice.
Above used breaker operating characteristic tester comprises display screen, keyboard, storer, processing module and acquisition module, and acquisition module frequency is 2M hertz, and processing module is connected with display screen, keyboard, storer and acquisition module respectively.
Embodiment 2:
As shown in Figure 1, primary cut-out acting characteristic method of testing, concrete steps are as follows:
A () first checks the state of primary cut-out, and be connected with the earth by the earth terminal looking into primary cut-out two ends;
B () breaker operating characteristic tester and power supply connect with the earth, and breaker operating characteristic tester is adjusted to dormant state;
C () uses six roots of sensation three-phase test lead (wherein every root test lead is made up of pressure-wire and current line), three of breaker operating characteristic tester pairs of signals are exported and is connected with the two ends of primary cut-out with input signal port, the output port of breaker operating characteristic tester is connected with primary cut-out terminal box simultaneously;
D () starts being adjusted to property of breaker operating characteristic tester measurement function test interface;
E () touches deciliter signal control knob in primary cut-out action control loop, control signal output port through breaker operating characteristic tester and be transferred to primary cut-out terminal box, primary cut-out is made to make a deciliter action, breaker operating characteristic tester is to primary cut-out input test electric current simultaneously, signal is passed to breaker operating characteristic tester by each phase port of primary cut-out three-phase by six roots of sensation p-wire, after the process of breaker operating characteristic tester, memory storage related data, breaker operating characteristic parameter display on a display screen simultaneously, recorded by testing crew,
F () test terminates, disconnect instrument power source, overhead jointing clamp takes off by the hand-held insulating bar that extends, and recovers safety practice.
Above used breaker operating characteristic tester comprises display screen, keyboard, storer, processing module and acquisition module, and acquisition module frequency is 3M hertz, and processing module is connected with display screen, keyboard, storer and acquisition module respectively.
Embodiment 3:
As shown in Figure 1, primary cut-out acting characteristic method of testing, concrete steps are as follows:
A () first checks the state of primary cut-out, and be connected with the earth by the earth terminal looking into primary cut-out two ends;
B () breaker operating characteristic tester and power supply connect with the earth, and breaker operating characteristic tester is adjusted to dormant state;
C () uses six roots of sensation three-phase test lead (wherein every root test lead is made up of pressure-wire and current line), three of breaker operating characteristic tester pairs of signals are exported and is connected with the two ends of primary cut-out with input signal port, the output port of breaker operating characteristic tester is connected with primary cut-out terminal box simultaneously;
D () starts being adjusted to property of breaker operating characteristic tester measurement function test interface;
E () touches deciliter signal control knob in primary cut-out action control loop, control signal output port through breaker operating characteristic tester and be transferred to primary cut-out terminal box, primary cut-out is made to make a deciliter action, breaker operating characteristic tester is to primary cut-out input test electric current simultaneously, signal is passed to breaker operating characteristic tester by each phase port of primary cut-out three-phase by six roots of sensation p-wire, after the process of breaker operating characteristic tester, memory storage related data, breaker operating characteristic parameter display on a display screen simultaneously, recorded by testing crew,
F () test terminates, disconnect instrument power source, overhead jointing clamp takes off by the hand-held insulating bar that extends, and recovers safety practice.
Above used breaker operating characteristic tester comprises display screen, keyboard, storer, processing module and acquisition module, and acquisition module frequency is 1M hertz, and processing module is connected with display screen, keyboard, storer and acquisition module respectively.
Above-described embodiment, just one of more preferably concrete mode of the present invention, the usual change that those skilled in the art carry out within the scope of technical solution of the present invention and replacement all should be included in protection scope of the present invention.
Claims (5)
1. a primary cut-out acting characteristic method of testing, is characterized in that: concrete steps are as follows:
A () first checks the state of primary cut-out, and be connected with the earth by the earth terminal looking into primary cut-out two ends;
B () breaker operating characteristic tester and power supply connect with the earth, and breaker operating characteristic tester is adjusted to dormant state;
C () uses three-phase test lead to be connected with the two ends of primary cut-out by breaker operating characteristic tester, be connected by the output port of breaker operating characteristic tester with primary cut-out terminal box simultaneously;
D () starts being adjusted to property of breaker operating characteristic tester measurement function test interface;
E () touches deciliter signal control knob in primary cut-out action control loop, control signal output port through breaker operating characteristic tester and be transferred to primary cut-out terminal box, primary cut-out is made to make a deciliter action, breaker operating characteristic tester is to primary cut-out input test electric current simultaneously, the data detected are passed to breaker operating characteristic tester by primary cut-out, then data are after the process of breaker operating characteristic tester, after breaker operating characteristic tester related data stores, and simultaneously breaker operating characteristic tester is by the parameter display that detects out, recorded by testing crew,
F () test terminates, disconnect instrument power source, overhead jointing clamp takes off by the hand-held insulating bar that extends, and recovers safety practice.
2. primary cut-out acting characteristic method of testing according to claim 1, is characterized in that: the measuring current described in step (e) is 10A.
3. primary cut-out acting characteristic method of testing according to claim 1, it is characterized in that: the three-phase test lead described in step (c) is the six roots of sensation, every root test lead is made up of pressure-wire and current line.
4. primary cut-out acting characteristic method of testing according to claim 1, it is characterized in that: described breaker operating characteristic tester comprises display screen, keyboard, storer, processing module and acquisition module, and processing module is connected with display screen, keyboard, storer and acquisition module respectively.
5. primary cut-out acting characteristic method of testing according to claim 4, is characterized in that: more than described acquisition module frequency 1M hertz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510535868.6A CN105203947A (en) | 2015-08-27 | 2015-08-27 | Performance characteristic testing method of high-voltage circuit breaker |
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| CN201510535868.6A CN105203947A (en) | 2015-08-27 | 2015-08-27 | Performance characteristic testing method of high-voltage circuit breaker |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106959415A (en) * | 2017-03-21 | 2017-07-18 | 武汉市欧睿科技有限公司 | High voltage switch dynamic characteristics method of testing based on bicyclic electric current |
| CN107843834A (en) * | 2017-11-06 | 2018-03-27 | 国网福建省电力有限公司 | Integrate the electric convergence control cabinet of circuit-breaker testing debugging function |
| CN109444734A (en) * | 2018-12-12 | 2019-03-08 | 广州广电计量检测股份有限公司 | Mimic-disconnecting switch calibrating installation |
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| US20040189307A1 (en) * | 2003-03-31 | 2004-09-30 | Rudholm Stig Olov | Methods and apparatus for analyzing high voltage circuit breakers |
| CN103630747A (en) * | 2012-08-24 | 2014-03-12 | 欧米克朗电子仪器有限公司 | Method and apparatus for the measurement of a resistance of a switching contact of an electrical circuit breaker |
| CN103969576A (en) * | 2014-04-24 | 2014-08-06 | 国家电网公司 | Dynamic characteristic analyzer for dual-grounding circuit breaker |
| CN203849007U (en) * | 2013-12-31 | 2014-09-24 | 扬州华电电气有限公司 | High-voltage switch tester device |
| CN104459529A (en) * | 2014-12-21 | 2015-03-25 | 国家电网公司 | Double-loop-current testing method for mechanical characteristic test of transformer substation high-voltage circuit breaker |
-
2015
- 2015-08-27 CN CN201510535868.6A patent/CN105203947A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040189307A1 (en) * | 2003-03-31 | 2004-09-30 | Rudholm Stig Olov | Methods and apparatus for analyzing high voltage circuit breakers |
| CN103630747A (en) * | 2012-08-24 | 2014-03-12 | 欧米克朗电子仪器有限公司 | Method and apparatus for the measurement of a resistance of a switching contact of an electrical circuit breaker |
| CN203849007U (en) * | 2013-12-31 | 2014-09-24 | 扬州华电电气有限公司 | High-voltage switch tester device |
| CN103969576A (en) * | 2014-04-24 | 2014-08-06 | 国家电网公司 | Dynamic characteristic analyzer for dual-grounding circuit breaker |
| CN104459529A (en) * | 2014-12-21 | 2015-03-25 | 国家电网公司 | Double-loop-current testing method for mechanical characteristic test of transformer substation high-voltage circuit breaker |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106959415A (en) * | 2017-03-21 | 2017-07-18 | 武汉市欧睿科技有限公司 | High voltage switch dynamic characteristics method of testing based on bicyclic electric current |
| CN107843834A (en) * | 2017-11-06 | 2018-03-27 | 国网福建省电力有限公司 | Integrate the electric convergence control cabinet of circuit-breaker testing debugging function |
| CN107843834B (en) * | 2017-11-06 | 2020-02-14 | 国网福建省电力有限公司 | Electric control cabinet integrating breaker test debugging function |
| CN109444734A (en) * | 2018-12-12 | 2019-03-08 | 广州广电计量检测股份有限公司 | Mimic-disconnecting switch calibrating installation |
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