CN209513995U - A kind of detection system of breaker - Google Patents
A kind of detection system of breaker Download PDFInfo
- Publication number
- CN209513995U CN209513995U CN201821432042.2U CN201821432042U CN209513995U CN 209513995 U CN209513995 U CN 209513995U CN 201821432042 U CN201821432042 U CN 201821432042U CN 209513995 U CN209513995 U CN 209513995U
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- current signal
- breaker
- energy difference
- integral energy
- detection system
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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；First current signal for receiving the first current signal and the second current signal, and is converted to the first digital current signal and the second current signal is converted to the second digital current signal by A/D sampler；Data storage, for storing the first standard digital current signal and the second standard current signal；Current energy calculator, integral energy for calculating the first digital current signal and the first standard digital current signal is poor, it is denoted as first integral energy difference, the integral energy for calculating the second digital current signal and the second standard digital current signal is poor, is denoted as second integral energy difference；Display, for showing first integral energy difference and second integral energy difference.
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 for capableing of visual inspection working state of circuit breaker.
Utility model content
The purpose of the utility model is to provide a kind of detection systems of breaker, can intuitively detect the work of breaker
Make state.
To solve the above problems, the technical solution of the utility model are as follows:
Referring to Fig. 1, 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；
A/D sampler, for receiving first current signal and second current signal, and it is electric by described first
Stream signal is converted to the first digital current signal and second current signal is converted to the second digital current signal；
Data storage, for storing the first standard digital current signal and the second standard current signal；
Current energy calculator, for calculating first digital current signal and the first standard digital current signal
Integral energy it is poor, be denoted as first integral energy difference, and, for calculate second digital current signal and it is described second mark
The integral energy of quasi- digital current signal is poor, is denoted as second integral energy difference；
Display, for showing the first integral energy difference and the second integral energy difference；
Wherein,
The first standard digital current signal is the current signal when opening coil works normally；
The second standard digital current signal is the current signal when closing coil works normally；
The first integral energy difference and the second integral energy difference are used to judge the working condition of the breaker.
According to an embodiment of the present invention, the detection system of breaker further includes integral energy difference comparator and alarm
Device；
The integral energy difference comparator is equipped with energy difference threshold value, in response to the first integral energy difference and/or described
Second integral energy difference is more than or equal to the energy difference threshold value, and the alarm issues alarm signal.
According to an embodiment of the present invention, the alarm includes buzzer.
According to an embodiment of the present invention, the alarm further includes warning lamp.
According to an embodiment of the present invention, the first standard digital current signal includes the breaker factory test
The current signal of Shi Suoshu opening coil；
The electric current letter of second standard digital current signal closing coil when including the breaker factory test
Number.
According to an embodiment of the present invention, the first standard digital current signal includes the normal operation of circuit breaker
The current signal of Shi Suoshu opening coil；
The electric current of second standard digital current signal closing coil when including the normal operation of circuit breaker is believed
Number.
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 calculates first by using current energy calculator
The integral energy of digital current signal and the first standard digital current signal difference calculates the second digital current signal and second
The integral energy of standard digital current signal is poor, the working condition of breaker can be judged by integral energy difference, to breaker
It is detected.
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；A/D sampler, for receiving the first current signal and the second current signal, and by first
Current signal is converted to the first digital current signal and the second current signal is converted to the second digital current signal；Data storage
Device, for storing the first standard digital current signal and the second standard current signal；Current energy calculator, for calculating first
The integral energy of digital current signal and the first standard digital current signal is poor, is denoted as first integral energy difference, and, based on
The integral energy for calculating the second digital current signal and the second standard digital current signal is poor, is denoted as second integral energy difference；Display
Device, for showing first integral energy difference and second integral energy difference；Wherein, the first standard digital current signal is separating brake line
Current signal when circle works normally；Second standard digital current signal is current signal when closing coil works normally；The
One integral energy difference and second integral energy difference are used to judge the working condition of breaker.
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 variant, electric current letter when by by the energy and normal work of actually detected current signal
Number energy compare and can intuitively reflect the working condition of breaker.Breaker in an embodiment of the present invention
Detection system calculates the product of the first digital current signal and the first standard digital current signal by using current energy calculator
Dividing energy difference or calculating the second digital current signal and the integral energy difference of the second standard digital current signal can judge to break
The working condition of road device, detects breaker.
Specifically, integral energy calculation formula is as follows:
Due to the formula and impedance is not contained, so E is defined as calculating resulting equivalent energy, characterizes divide-shut brake coil current
The curvilinear characteristic of curve, energy consumed by impedance is different when being applied to certain impedance from actual current, and i (t) is measurement
What is obtained divides/closing coil current curve, t1To divide/closing coil current detecting the duration.
Further, the detection system of breaker further includes integral energy difference comparator and alarm；Integral energy is poor
Comparator is equipped with energy difference threshold value, is more than or equal to energy difference threshold in response to first integral energy difference and/or second integral energy difference
Value, alarm issue alarm signal.
Further, alarm includes buzzer.
Further, alarm further includes warning lamp.
Further, the current signal of opening coil when the first standard digital current signal includes breaker factory test；
The current signal of closing coil when second standard digital current signal includes breaker factory test.
Further, the current signal of opening coil when the first standard digital current signal includes normal operation of circuit breaker；
The current signal of closing coil when second standard digital current signal includes normal operation of circuit breaker.
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 (7)
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；
A/D sampler is believed for receiving first current signal and second current signal, and by first electric current
It number is converted to the first digital current signal and second current signal is converted into the second digital current signal；
Data storage, for storing the first standard digital current signal and the second standard current signal；
Current energy calculator, for calculating the product of first digital current signal Yu the first standard digital current signal
Divide energy difference, is denoted as first integral energy difference, and, for calculating second digital current signal and second criterion numeral
The integral energy of word current signal is poor, is denoted as second integral energy difference；
Display, for showing the first integral energy difference and the second integral energy difference；
Wherein,
The first standard digital current signal is the current signal when opening coil works normally；
The second standard digital current signal is the current signal when closing coil works normally；
The first integral energy difference and the second integral energy difference are used to judge the working condition of the breaker.
2. the detection system of breaker as described in claim 1, which is characterized in that further include integral energy difference comparator and
Alarm；
The integral energy difference comparator is equipped with energy difference threshold value, in response to the first integral energy difference and/or described second
Integral energy difference is more than or equal to the energy difference threshold value, and the alarm issues alarm signal.
3. the detection system of breaker as claimed in claim 2, which is characterized in that the alarm includes buzzer.
4. the detection system of breaker as claimed in claim 3, which is characterized in that the alarm further includes warning lamp.
5. the detection system of breaker as described in claim 1, which is characterized in that the first standard digital current signal packet
Include the current signal of the opening coil when breaker factory test；
The current signal of second standard digital current signal closing coil when including the breaker factory test.
6. the detection system of breaker as described in claim 1, which is characterized in that the first standard digital current signal packet
Include the current signal of the opening coil when normal operation of circuit breaker；
The current signal of second standard digital current signal closing coil when including the normal operation of circuit breaker.
7. the detection system of breaker as claimed in any one of claims 1 to 6, 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 |
|---|---|---|---|
| CN201821432042.2U CN209513995U (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 |
|---|---|---|---|
| CN201821432042.2U CN209513995U (en) | 2018-09-03 | 2018-09-03 | A kind of detection system of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209513995U true CN209513995U (en) | 2019-10-18 |
Family
ID=68187181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821432042.2U Active CN209513995U (en) | 2018-09-03 | 2018-09-03 | A kind of detection system of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209513995U (en) |
-
2018
- 2018-09-03 CN CN201821432042.2U patent/CN209513995U/en active Active
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