CN208984768U - A kind of detection system of breaker - Google Patents
A kind of detection system of breaker Download PDFInfo
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- CN208984768U CN208984768U CN201821432060.0U CN201821432060U CN208984768U CN 208984768 U CN208984768 U CN 208984768U CN 201821432060 U CN201821432060 U CN 201821432060U CN 208984768 U CN208984768 U CN 208984768U
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- breaker
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Abstract
The utility model discloses a kind of detection systems of breaker, comprising: the first current sensor, the current signal of the opening coil for detecting breaker are denoted as the first current signal；Second current sensor, the current signal of the closing coil for detecting breaker, is denoted as the second current signal；Busbar current transformer, the current signal of the bus for detecting breaker connection, is denoted as third current signal；Oscillograph is used for while showing the first current signal, the second current signal and third current signal.The detection system of the breaker passes through while detecting the current signal of divide-shut brake coil and the current signal of bus and being shown by oscillograph, once there is mechanical defect in breaker, then can two class signal of comparative analysis wave character, to improve the reliability and accuracy of fault diagnosis.
Description
Technical field
The utility model belongs to electrical equipment more particularly to a kind of detection system of breaker.
Background technique
Breaker primarily serves electric current in power grid and cut-offs function, when there are need to open and close by breaker when failure for power grid
Fault current guarantees the safety of power grid.The breaker electrically and mechanically state complicated as one, mechanical-like when divide-shut brake
State is of great significance to the reliability service of breaker, once the machine performance of breaker goes wrong, it is likely that lead to it
Malfunction or refused action, lead to the generation of accident.Machine performance when therefore to the machine performance, especially divide-shut brake of breaker
Carrying out detection is to guarantee the important measures of its safe operation.
The prior art lacks a kind of detection system that working state of circuit breaker can be detected in conjunction with many factors.
Utility model content
The purpose of the utility model is to provide a kind of detection systems of breaker, can be in conjunction with many factors detection open circuit
The working condition of device, testing result are more acurrate.
To solve the above problems, the technical solution of the utility model are as follows:
A kind of detection system of breaker, comprising:
First current sensor, the current signal of the opening coil for detecting the breaker are denoted as the first electric current letter
Number；
Second current sensor, the current signal of the closing coil for detecting the breaker are denoted as the second electric current letter
Number；
Busbar current transformer, the current signal of the bus for detecting the breaker connection, is denoted as third electric current letter
Number；
Oscillograph, for showing first current signal, second current signal and third electric current letter simultaneously
Number.
According to an embodiment of the present invention, the sample rate of the oscillograph is not less than 1GHz, and bandwidth is not less than 200MHz.
According to an embodiment of the present invention, first current sensor and second current sensor are Hall
Current sensor.
The utility model due to using the technology described above, has the following advantages that it compared with prior art and actively
Effect:
The detection system of breaker in an embodiment of the present invention passes through while detecting the electric current letter of divide-shut brake coil
Number and bus current signal and shown by oscillograph, then can comparative analysis two once mechanical defect occurs in breaker
The wave character of class signal, to improve the reliability and accuracy of fault diagnosis.
Detailed description of the invention
Fig. 1 is a kind of block diagram of the detection system of breaker of the utility model.
Specific embodiment
Below in conjunction with the drawings and specific embodiments to the utility model proposes the detection system of breaker a kind of make into one
Step is described in detail.According to following explanation and claims, will be become apparent from feature the advantages of the utility model.
Referring to Fig. 1, a kind of detection system of breaker, comprising: the first current sensor, for detecting the separating brake of breaker
The current signal of coil is denoted as the first current signal；Second current sensor, the electric current of the closing coil for detecting breaker
Signal is denoted as the second current signal；Busbar current transformer, the current signal of the bus for detecting breaker connection, is denoted as
Third current signal；Oscillograph is used for while showing the first current signal, the second current signal and third current signal.
It is appreciated that when breaker breaks down, the opening coil of breaker or current signal on closing coil and
Current signal when normal can be variant, and the current signal of the bus of breaker also will appear abnormal vibrations.Specifically, division
Brake cable circle is the important component of circuit breaker operation mechanism, moving contact of breaker can be made dynamic by applying electric current to divide-shut brake coil
Make, and carries out breaking-closing operating, therefore divide-shut brake coil current has reacted the motion state of contact different moments.For breaker
For, since it is connected on bus, once it is with breaking-closing operating, contact action will lead to bus current and change,
Sub-switching operation will lead to bus current reduction, and closing operation will lead to bus current increase, therefore bus current, special initial shape
The mode of operation of breaker has also been reacted in the variation of state, this is for judging that there is the machine performance of breaker certain reference to anticipate
Justice.The detection system of breaker in the present embodiment passes through while detecting the current signal of divide-shut brake coil and the electric current letter of bus
Number and shown by oscillograph, once there is mechanical defect in breaker, then can two class signal of comparative analysis wave character,
To improve the reliability and accuracy of fault diagnosis.
Further, the sample rate of oscillograph is not less than 1GHz, and bandwidth is not less than 200MHz.
Further, the first current sensor and the second current sensor are Hall current sensor.
The embodiments of the present invention is explained in detail above in conjunction with attached drawing, but the utility model is not limited to
Above embodiment.Even if to the utility model, various changes can be made, if these variations belong to the utility model claims
And its within the scope of equivalent technologies, then still fall among the protection scope of the utility model.
Claims (3)
1. a kind of detection system of breaker characterized by comprising
First current sensor, the current signal of the opening coil for detecting the breaker, is denoted as the first current signal；
Second current sensor, the current signal of the closing coil for detecting the breaker, is denoted as the second current signal；
Busbar current transformer, the current signal of the bus for detecting the breaker connection, is denoted as third current signal；
Oscillograph, for showing first current signal, second current signal and the third current signal simultaneously.
2. the detection system of breaker as described in claim 1, which is characterized in that the sample rate of the oscillograph is not less than
1GHz, bandwidth are not less than 200MHz.
3. the detection system of the breaker as described in claim 1-2 any one, which is characterized in that first current sense
Device and second current sensor are Hall current sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821432060.0U CN208984768U (en) | 2018-09-03 | 2018-09-03 | A kind of detection system of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821432060.0U CN208984768U (en) | 2018-09-03 | 2018-09-03 | A kind of detection system of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208984768U true CN208984768U (en) | 2019-06-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821432060.0U Active CN208984768U (en) | 2018-09-03 | 2018-09-03 | A kind of detection system of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208984768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366843A (en) * | 2018-12-26 | 2020-07-03 | 平高集团有限公司 | Circuit breaker device and opening and closing detection method and device |
-
2018
- 2018-09-03 CN CN201821432060.0U patent/CN208984768U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366843A (en) * | 2018-12-26 | 2020-07-03 | 平高集团有限公司 | Circuit breaker device and opening and closing detection method and device |
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