CN206848434U - A kind of device for measuring the high-voltage circuit-breaker switching on-off time - Google Patents
A kind of device for measuring the high-voltage circuit-breaker switching on-off time Download PDFInfo
- Publication number
- CN206848434U CN206848434U CN201720625911.2U CN201720625911U CN206848434U CN 206848434 U CN206848434 U CN 206848434U CN 201720625911 U CN201720625911 U CN 201720625911U CN 206848434 U CN206848434 U CN 206848434U
- Authority
- CN
- China
- Prior art keywords
- breaker
- contact
- detection
- switching
- control loop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model provides a kind of device for measuring the high-voltage circuit-breaker switching on-off time, including detection front end, for detecting the action signal of breaker contact point to be measured；The detection front end is also associated with the Hall element for detecting electrical quantity in breaker coil control loop to be measured；Also include detection power supply, for connecting the contact of breaker to be measured, to form contact detection circuitry.Technical scheme provided by the utility model, provided with the detection power supply for connecting breaker contact point, under operating condition of test electric signal is provided for the contact of breaker, detection front end judges the actuation time of breaker contact point according to the electric signal, so can also detect the branch wire time of breaker under operating condition of test.
Description
Technical field
The utility model belongs to high-voltage electrical apparatus detection technique field, and in particular to during one kind measurement high-voltage circuit-breaker switching on-off
Between device.
Background technology
The opening time and closing time of primary cut-out are the important indicators for weighing breaker performance, and circuit breaker type
One group of parameter that formula experiment must measure.Closing time be from the closing coil of breaker be connected to switching voltage or electric current moment to
Contact time used untill completing, opening time are to be connected to separating brake voltage or electric current moment from the switching winding of breaker
The time used untill contact separation is completed.
Before capacity breaking test, the branch wire time of breaker is in a stable state, is to pass through capacity
One necessary condition of type approval test, and testing crew adjust SECO, determine the premise of arc time.Measurement height is broken
The opening time and closing time of road device, it is necessary to it is accurate obtain separating brake command signal, the contact separation moment, reclosing command signal with
And the contact moment, as shown in Figure 1.Currently used detection method, it is to set one in the control coil part of breaker
Driving circuit, contact part set a signal deteching circuit, as shown in Fig. 2 when cut-offfing K closures, it is believed that the line of breaker
Circle has been partially received combined floodgate or separating brake voltage, then detects the actuation time of contact part, and the time difference between the two recognizes
To be the corresponding opening time of breaker or closing time.Although this mode is capable of detecting when the closing time of breaker and divided
The lock time, but for the ease of control, switch K generally use relay switches, and relay switch receives driving electricity from coil
Contact action is pressed onto, has certain delay, the result detected by this way can have larger error.
A kind of online prison of high-voltage circuit-breaker switching on-off time disclosed in Publication No. CN101118275A patent document
Survey method, in the contact part connection capacitance sensor of breaker, the both ends of switching winding and closing coil pass through outside respectively
Closing contact connection control power supply, form closing circuit and sub-gate circuit, and provided with detection closing circuit and sub-gate circuit electricity
The light of pressure is every, remote signalling loop.The time according to caused by the voltage signal of closing coil or switching winding, and capacitance sensor inspection
The time of the breaker contact point action measured, it becomes possible to calculate the closing time and opening time of breaker.The patent document
Disclosed technical scheme judges that breaker coil receives by detecting the voltage in breaker driving circuit, according to the voltage
Using electricity when the time of reclosing command, eliminating influence caused by relay switch delay, but detecting breaker contact point part
Hold the action signal of sensor collection breaker contact point, and capacitance sensor is due to the characteristic of its own, it is easy to by parasitism
The interference of electric capacity, so testing result is easily affected, causing the accuracy of testing result reduces, poor reliability.And should
The circuit-breaker switching on-off time detecting method that patent is provided, is online test method, i.e. the situation in normal operation of circuit breaker
Under detected, it is impossible under operating condition of test, such as it is detected before breaker dispatches from the factory.
Utility model content
The purpose of this utility model is to provide a kind of device for measuring the high-voltage circuit-breaker switching on-off time, for testing
The branch wire time of breaker is detected under operating mode.
To achieve the above object, technical scheme provided by the utility model is：
A kind of device for measuring the high-voltage circuit-breaker switching on-off time, including detection front end, for detecting breaker to be measured
The action signal of contact；The detection front end is also associated with for detecting electrical quantity in breaker coil control loop to be measured
Hall element；Also include detection power supply, for connecting the contact of breaker to be measured, to form contact detection circuitry.
Further, the contact detection circuitry is formed by the contact series of detection power supply and breaker to be measured, described
Detect in front end connecting terminal detection circuit.
Further, the detection power supply is used for the contact shunt with breaker, and the detection front end is used to connect open circuit
The both ends of device contact, detect the electric potential signal at its both ends.
Further, the detection front end is instantaneous state recorder.
Further, the Hall element is two current Hall elements, is respectively used to be arranged on the closing line of breaker
Control loop and switching winding control loop are enclosed, detects the electric current of closing coil control loop and switching winding control loop.
Further, the Hall element is two voltage Hall elements, is respectively used to be arranged on the closing line of breaker
Enclose in control loop and switching winding control loop, detect closing coil and the voltage signal at switching winding both ends.
The beneficial effects of the utility model are：Technical scheme provided by the utility model, provided with for connecting breaker
The detection power supply of contact, the contact for breaker under operating condition of test provide electric signal, and detection front end judges according to the electric signal
The actuation time of breaker contact point, so can also detect the branch wire time of breaker under operating condition of test.
Brief description of the drawings
Fig. 1 is the schematic diagram of collection breaker open operation coil, closing coil and contact part signal；
Fig. 2 is the schematic diagram for detecting breaker open operation time and closing time in the prior art；
Fig. 3 is the structure principle chart of the device for the measurement high-voltage circuit-breaker switching on-off time that embodiment provides；
Fig. 4 is the oscillogram that the circuit-breaker switching on-off time is detected in embodiment；
Fig. 5 is the structure of the detecting device schematic diagram that the circuit-breaker switching on-off time is detected using voltage sensor.
Embodiment
The purpose of this utility model is to provide a kind of device for measuring the high-voltage circuit-breaker switching on-off time, for testing
The branch wire time of breaker is detected under operating mode.
To achieve the above object, technical scheme provided by the utility model is：
A kind of device for measuring the high-voltage circuit-breaker switching on-off time, including detection front end, for detecting breaker to be measured
The action signal of contact；The detection front end is also associated with for detecting electrical quantity in breaker coil control loop to be measured
Hall element；Also include detection power supply, for connecting the contact of breaker to be measured, to form contact detection circuitry.
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
The present embodiment provide it is a kind of measure the high-voltage circuit-breaker switching on-off time device, its structural principle as shown in figure 3,
The main contact part of breaker connects a contact detection circuitry, in the closing coil part of breaker and switching winding part point
Contacting controling circuit and sub-gate control circuit are not connected with it.The control coil part of breaker includes closing coil and separating brake line
Circle.
Closing coil control circuit includes shutting-brake control power supply and outside closing contact, and switching winding control circuit includes closing
Lock controls power supply and outside closing contact.The closing coil of shutting-brake control power supply, outside closing contact and breaker is connected into conjunction
Lock control loop, the switching winding of separating brake control power supply, outside separating brake contact and breaker are connected into separating brake control loop.First
Current Hall element is arranged at shutting-brake control loop, detects the current signal in shutting-brake control loop, the second current Hall member
Part is arranged at separating brake control loop, detects the current signal in separating brake control loop.
Contact detection circuitry includes 5V DC detecting power supply and an instantaneous state recorder, DC detecting power supply and disconnected
The main contact series connection of road device, form contact of breaker detection circuit.Instantaneous state recorder is connected to breaker and touched as detection front end
The both ends of head detection circuit.Instantaneous state recorder is also connected with the first current Hall element and the second current Hall element, the first electricity
The current signal detected is sent to instantaneous state recorder by stream Hall element and the second current Hall element in real time.For different
The resistance sizes of breaker, switching winding and closing coil are different, the first current Hall sensor and the second current Hall sensing
Device should also select different ranges, so that Detection results reach best.
When outside closing contact closes, the closing coil of breaker obtains electric, and now the first current Hall element testing arrives
The current signal of breaker closing coil, and as the powered foundation of closing circuit of circuit breaker, that is, there is combined floodgate order to send.
The closing coil of breaker obtain it is electric after breaker main contact closure, now formed between instantaneous state recorder and DC detecting power supply
Path, the voltage rising edge signal that instantaneous state recorder collects are the signal of breaker main contact contact.In the present embodiment,
The input impedance of instantaneous state recorder is 1M Ω, sample frequency 1M/s.
When outside separating brake contact closure, the switching winding of breaker obtains electric, and now the second current Hall element testing arrives
The current signal of breaker open operation coil, and as the powered foundation of brake division loop of circuit breaker, that is, there is separating brake order to send.
The switching winding of breaker obtain it is electric after the main contact of breaker disconnect, the now company between instantaneous state recorder and DC detecting power supply
Disconnection is connect, the voltage trailing edge signal that instantaneous state recorder collects is the signal that breaker main contact disconnects.
Because the first current Hall element and the second current Hall element are all connected with instantaneous state recorder, so transient recording
Instrument can gather the current signal in breaker closing coil and switching winding in real time, and the instruction of generation breaker open operation and combined floodgate refer to
The signal waveform of order, with reference to the action signal of breaker main contact, the closing time and opening time of breaker can be drawn, such as
Shown in Fig. 4.
As other embodiment, current Hall sensor can not be used to gather the electricity of switching winding and closing coil
Flow, and use voltage sensor, be i.e. voltage Hall element, detect switching winding and the voltage at closing coil both ends, such as Fig. 5 respectively
Shown, whether what the voltage signal that is detected according to voltage sensor of detection front end judged breaker is connected to separating brake order or combined floodgate
Order.
, can be in parallel with the main contact of breaker by DC detecting power supply as other embodiment, instantaneous state recorder connects
The both ends of breaker main contact are connected on, when judging the action of breaker main contact by the electric potential signal at breaker main contact both ends
Between.
As other embodiment, detection front end can be other any places with data receiver and data processing function
Device is managed, the electrical quantity signal in closing coil control loop and switching winding control loop, and energy can be received from Hall element
The contact action signal of breaker is enough detected, and the branch wire time of breaker can be gone out according to these signal of change.
Claims (6)
1. a kind of device for measuring the high-voltage circuit-breaker switching on-off time, including detection front end, are touched for detecting breaker to be measured
The action signal of point；The detection front end is also associated with for detecting in breaker coil control loop to be measured electrical quantity suddenly
That element；Characterized in that, also include detection power supply, for connecting the contact of breaker to be measured, to form contact detection electricity
Road.
2. a kind of device for measuring the high-voltage circuit-breaker switching on-off time according to claim 1, it is characterised in that described to touch
Point detection circuit is formed by the contact series of detection power supply and breaker to be measured, the detection front end connecting terminal detection circuit
In.
A kind of 3. device for measuring the high-voltage circuit-breaker switching on-off time according to claim 1, it is characterised in that the inspection
Power supply is surveyed to be used for the both ends for connecting breaker contact point for the contact shunt with breaker, the detection front end, detect its both ends
Electric potential signal.
4. the device of measurement high-voltage circuit-breaker switching on-off time according to claim 1-3 any one a kind of, its feature
It is, the detection front end is instantaneous state recorder.
5. the device of measurement high-voltage circuit-breaker switching on-off time according to claim 1-3 any one a kind of, its feature
Be, the Hall element is two current Hall elements, be respectively used to be arranged on breaker closing coil control loop and
Switching winding control loop, detect the electric current of closing coil control loop and switching winding control loop.
6. the device of measurement high-voltage circuit-breaker switching on-off time according to claim 1-3 any one a kind of, its feature
Be, the Hall element is two voltage Hall elements, be respectively used to be arranged on breaker closing coil control loop and
In switching winding control loop, closing coil and the voltage signal at switching winding both ends are detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720625911.2U CN206848434U (en) | 2017-05-31 | 2017-05-31 | A kind of device for measuring the high-voltage circuit-breaker switching on-off time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720625911.2U CN206848434U (en) | 2017-05-31 | 2017-05-31 | A kind of device for measuring the high-voltage circuit-breaker switching on-off time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206848434U true CN206848434U (en) | 2018-01-05 |
Family
ID=60797392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720625911.2U Active CN206848434U (en) | 2017-05-31 | 2017-05-31 | A kind of device for measuring the high-voltage circuit-breaker switching on-off time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206848434U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991607A (en) * | 2018-01-11 | 2018-05-04 | 南方电网科学研究院有限责任公司 | One kind is used for high voltage DC breaker branch wire time measuring device |
| CN109254245A (en) * | 2018-11-07 | 2019-01-22 | 紫光测控有限公司 | A kind of short circuit of relay circuit and open detection circuit |
| CN109541451A (en) * | 2018-11-20 | 2019-03-29 | 上海思源高压开关有限公司 | A kind of intelligent regulator device for mechanical breaker fracture consistency |
| CN109655745A (en) * | 2019-01-17 | 2019-04-19 | 武汉黎赛科技有限责任公司 | A kind of test device and test method of main circuit breaker time parameter |
| CN110492443A (en) * | 2019-09-05 | 2019-11-22 | 广东电网有限责任公司 | 10kV switchgear secondary component real-time monitoring protective device |
| CN112750638A (en) * | 2020-12-31 | 2021-05-04 | 江苏韬博智能科技有限公司 | Judging device for on-off state of breaker on-off mechanical contact and working method |
| CN116106709A (en) * | 2022-11-30 | 2023-05-12 | 中国南方电网有限责任公司超高压输电公司广州局 | Testing device and method suitable for bypass switch of IGBT power module |
-
2017
- 2017-05-31 CN CN201720625911.2U patent/CN206848434U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991607A (en) * | 2018-01-11 | 2018-05-04 | 南方电网科学研究院有限责任公司 | One kind is used for high voltage DC breaker branch wire time measuring device |
| CN109254245A (en) * | 2018-11-07 | 2019-01-22 | 紫光测控有限公司 | A kind of short circuit of relay circuit and open detection circuit |
| CN109254245B (en) * | 2018-11-07 | 2020-12-01 | 紫光测控有限公司 | Relay loop short circuit and open circuit detection circuit |
| CN109541451A (en) * | 2018-11-20 | 2019-03-29 | 上海思源高压开关有限公司 | A kind of intelligent regulator device for mechanical breaker fracture consistency |
| CN109655745A (en) * | 2019-01-17 | 2019-04-19 | 武汉黎赛科技有限责任公司 | A kind of test device and test method of main circuit breaker time parameter |
| CN110492443A (en) * | 2019-09-05 | 2019-11-22 | 广东电网有限责任公司 | 10kV switchgear secondary component real-time monitoring protective device |
| CN112750638A (en) * | 2020-12-31 | 2021-05-04 | 江苏韬博智能科技有限公司 | Judging device for on-off state of breaker on-off mechanical contact and working method |
| CN116106709A (en) * | 2022-11-30 | 2023-05-12 | 中国南方电网有限责任公司超高压输电公司广州局 | Testing device and method suitable for bypass switch of IGBT power module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206848434U (en) | A kind of device for measuring the high-voltage circuit-breaker switching on-off time | |
| CN101806853B (en) | On-line test method and device for high-voltage thyristor | |
| CN101201379B (en) | Method for faulty indication and subsection of power system low current grounding | |
| CN101900771B (en) | RCD (Residual Current Device) detection device and detection method | |
| CN201408236Y (en) | Power distribution network failure locating device | |
| CN203259629U (en) | Diagnostic instrument for high-voltage breaker mechanical fault | |
| CN107102236A (en) | A kind of fault line selection method for single-phase-to-ground fault based on waveform correlation analysis after failure | |
| CN105823981A (en) | On-line monitoring system of high-voltage circuit breaker and data processing method thereof | |
| CN106253207A (en) | A kind of ground-fault protection system of orbit traffic direct current trailer system | |
| CN103454581A (en) | Contactor performance testing equipment | |
| CN105572533B (en) | Method for identifying transient fault and permanent fault | |
| CN110491721A (en) | Contact type Vacuity of Vacuum Circuit Breakers on-Line Monitor Device and method built in a kind of | |
| CN202562733U (en) | High voltage breaker mechanical property on-line live-line detection system | |
| CN105823954B (en) | Detection device and method for grounding point of storage battery pack and direct-current power supply system | |
| CN112666494A (en) | Circuit for detecting three-phase mains power failure | |
| CN105353302A (en) | Switch equipment arcing time detection device and switch equipment arcing time detection method | |
| CN102540012B (en) | Method and device for judging single-phase earth fault of low-current grounding system | |
| CN204374346U (en) | The pick-up unit of battery pack earth point, DC power system | |
| CN207439672U (en) | A kind of Portable frame posture breaker mechanical trouble-shooter based on microprocessor | |
| CN203054193U (en) | On-line monitoring system for mechanical characteristic of vacuum circuit breaker | |
| CN107037376A (en) | A kind of batteries charging and discharging currents monitoring system and monitoring method | |
| CN205353294U (en) | Fault electric arc detecting device's test equipment | |
| CN107991607A (en) | One kind is used for high voltage DC breaker branch wire time measuring device | |
| CN214100968U (en) | Cover type feeder terminal and high-voltage switch | |
| CN104241008A (en) | Method and device for detecting breaking and closing positions of vacuum circuit breaker contacts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |