CN110286265B - Contact arm measuring ring device for vacuum circuit breaker - Google Patents
Contact arm measuring ring device for vacuum circuit breaker Download PDFInfo
- Publication number
- CN110286265B CN110286265B CN201910672565.7A CN201910672565A CN110286265B CN 110286265 B CN110286265 B CN 110286265B CN 201910672565 A CN201910672565 A CN 201910672565A CN 110286265 B CN110286265 B CN 110286265B
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- ring
- current detection
- circuit breaker
- contact arm
- induction
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- 238000001514 detection method Methods 0.000 claims abstract description 43
- 230000006698 induction Effects 0.000 claims abstract description 41
- 238000012545 processing Methods 0.000 claims abstract description 33
- 238000004891 communication Methods 0.000 claims abstract description 22
- 238000005259 measurement Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 abstract description 14
- 238000009529 body temperature measurement Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Gas-Insulated Switchgears (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a contact arm measuring annular device for a vacuum circuit breaker, which comprises an induction ring and a current detection ring, wherein the induction ring and the current detection ring are opposite to each other, a central control system is connected between the induction ring and the current detection ring, and the device also comprises a temperature sensor which is fixed on one side of the central control system facing the direction of the center of the induction ring or the current detection ring; the central control system comprises a power supply module, a wireless communication module and a processing module; the power supply module is used for receiving the electric energy generated by the induction electric ring and supplying power to the wireless communication module, the processing module and the temperature sensor; the input end of the processing module is connected with the current detection ring and the temperature sensor, and the output end of the processing module is connected with the wireless communication module. The invention is used for solving the problems that the monitoring mode of the circuit breaker contact arm is single and the temperature measurement result cannot be linked with the current in the prior art, realizing the purpose of stably acquiring the real-time monitoring data of the circuit breaker contact arm and carrying out linkage processing on the temperature and current information.
Description
Technical Field
The invention relates to the field of vacuum circuit breakers, in particular to a contact arm measuring annular device for a vacuum circuit breaker.
Background
The vacuum circuit breaker is a power switching device with high prospect in the low-voltage and medium-voltage fields, and is a switching device with vacuum as insulation and arc extinguishing medium. The gas molecules in the vacuum are very rare, and the probability of collision between electrons and molecules is very low, so the insulating strength of the vacuum circuit breaker is very high. Compared with other types of circuit breakers, the vacuum circuit breaker has the advantages of safety, reliability, long service life, small maintenance workload, no environmental pollution and the like.
In the working process of the circuit breaker, if the temperature of the main loop is too high, heating and oxidization can be accelerated, so that phenomena such as melting and falling of a contact finger, burning of a contact, failure of an insulating material and the like are caused, and even combustion and explosion are caused in severe cases. In the prior art, the monitoring mode of the circuit breaker contact arm can only singly measure the temperature, and can not be linked with the specific current, so that the measurement result only has referential property, and the measurement result can not be directly utilized for accurate analysis.
Disclosure of Invention
The invention aims to provide a contact arm measuring annular device for a vacuum circuit breaker, which is used for solving the problems that in the prior art, the monitoring mode of the contact arm of the circuit breaker is single, and the temperature measurement result cannot be linked with the current, and realizing the purposes of stably acquiring the real-time monitoring data of the contact arm of the circuit breaker and carrying out linkage processing on the temperature and current information.
The invention is realized by the following technical scheme:
The contact arm measuring annular device for the vacuum circuit breaker comprises an induction ring and a current detection ring, wherein the induction ring and the current detection ring are opposite to each other, a central control system is connected between the induction ring and the current detection ring, and the contact arm measuring annular device also comprises a temperature sensor which is fixed on one side of the central control system facing the direction of the center of the induction ring or the current detection ring; the central control system comprises a power supply module, a wireless communication module and a processing module; the power module is used for receiving the electric energy generated by the induction electric ring and supplying power to the wireless communication module, the processing module and the temperature sensor; the input end of the processing module is connected with the current detection ring and the temperature sensor, and the output end of the processing module is connected with the wireless communication module.
Aiming at the problems that the monitoring mode of a circuit breaker contact arm is single and the temperature measurement result cannot be linked with the current in the prior art, the application provides the contact arm measuring annular device for the vacuum circuit breaker, and an induction electric ring and a current detection ring are annular, so that the circuit breaker contact arm is conveniently and directly sleeved. The induction electric loop is used for obtaining induction current, the current detection loop is used for monitoring the current in the circuit breaker contact arm in real time, the central control system is connected between the induction electric loop and the current detection loop, and the central control system firstly plays a role in connection, so that the induction electric loop and the current detection loop are connected into a whole. The central control system faces the fixed temperature sensor at one side of the direction of the center of the induction ring or the current detection ring, namely, the temperature sensor faces the direction of the contact arm of the circuit breaker, and the central control system comprises a power module, a wireless communication module and a processing module, wherein the power module is used for receiving and storing induction current generated by the induction ring, and the stored electric energy is used for supplying power to the wireless communication module, the processing module and the temperature sensor, so that the automatic operation can be stably maintained without additional power supply. The input end of the processing module is connected with the current detection ring and the temperature sensor, and the output end of the processing module is connected with the wireless communication module, so that current and temperature information monitored by the current detection ring and the temperature sensor in real time are firstly transmitted to the processing module for processing and then transmitted to the wireless communication module, and the current and temperature information is transmitted outwards by the wireless communication module. The application can realize the effects of monitoring and protecting the circuit breaker and the switch equipment in real time by sending the signals through the wireless communication module. The application solves the problems that the monitoring mode of the contact arm of the circuit breaker is single and the temperature measurement result cannot be linked with the current in the prior art, realizes the purpose of stably acquiring the real-time monitoring data of the contact arm of the circuit breaker and can carry out linkage processing on the temperature and current information.
The induction electric ring and the current detection ring are coaxial and are sleeved outside the contact arm of the circuit breaker; the central control system is connected to the tops of the induction electric ring and the current detection ring, the temperature sensor is arranged on the lower surface of the central control system, and the temperature sensor is contacted with the contact arm of the circuit breaker. The sensing electricity ring is coaxial with the current detection ring, is convenient for ensure that both stable cover simultaneously is on the circuit breaker touches the arm, and well accuse system connection is at sensing electricity ring, current detection ring's top, and temperature sensor sets up at well accuse system's lower surface, and this kind of structure can make under the holistic gravity action of this device, and the temperature sensor that is located circuit breaker and touches arm top is natural and circuit breaker touches arm steady contact.
The induction ring is a current transformer.
The current detection loop is a rogowski coil.
The processing module is an analog-to-digital converter.
The bottom mounting carrier plate of induction electricity ring or electric current detection ring, the upper surface of carrier plate sets up and touches arm bottom assorted recess with the circuit breaker. The bottom phase-match of recess and circuit breaker touch the arm to for the circuit breaker touches the arm and provides the accommodation groove through the recess, make the circuit breaker touch the bottom of arm and carry out the cladding by the recess, hold this device by the spandrel plate, improve this device's job stabilization nature.
The opposite sides of the bearing plate are hinged with the clamping plates through hinges, and the clamping plates are connected with the outer walls of the bearing plate through tension springs. When the circuit breaker contact arm is placed in the groove, the clamping plates at the two sides are pulled inwards by the tension springs, then the clamping plates are clamped at the two sides of the circuit breaker contact arm, and the circuit breaker contact arm is tightly clamped from the two sides by the clamping plates, so that the static friction force between the device and the circuit breaker contact arm is extremely large, the relative connection stability between the device and the circuit breaker contact arm is provided, the sliding displacement easily generated along the axial direction of the circuit breaker contact arm is avoided, and the stability of the device in the online monitoring process is remarkably improved.
The inner side surface of the clamping plate is provided with a plurality of convex teeth. The friction resistance between the clamping plate and the contact arm of the circuit breaker is improved through the convex teeth, so that the use stability of the circuit breaker is further ensured.
Compared with the prior art, the invention has the following advantages and beneficial effects:
The contact arm measuring ring device for the vacuum circuit breaker can stably maintain automatic operation without additional power supply. The input end of the processing module is connected with the current detection ring and the temperature sensor, and the output end of the processing module is connected with the wireless communication module, so that current and temperature information monitored by the current detection ring and the temperature sensor in real time are firstly transmitted to the processing module for processing and then transmitted to the wireless communication module, and the current and temperature information is transmitted outwards by the wireless communication module. The application can realize the effects of monitoring and protecting the circuit breaker and the switch equipment in real time by sending the signals through the wireless communication module. The application solves the problems that the monitoring mode of the contact arm of the circuit breaker is single and the temperature measurement result cannot be linked with the current in the prior art, realizes the purpose of stably acquiring the real-time monitoring data of the contact arm of the circuit breaker and can carry out linkage processing on the temperature and current information.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:
FIG. 1 is a schematic structural diagram of an embodiment 1 of the present invention;
FIG. 2 is a side view of embodiment 1 of the present invention;
FIG. 3 is a schematic diagram illustrating the connection of a central control system according to embodiment 1 of the present invention;
Fig. 4 is a schematic diagram of the whole circuit breaker when embodiment 1 of the present invention is used;
FIG. 5 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 6 is a partial schematic view of a support plate in embodiment 2 of the present invention.
In the drawings, the reference numerals and corresponding part names:
1-circuit breaker operating mechanism, 2-solid sealed polar pole, 3-circuit breaker contact arm, 4-circuit breaker contact, 5-contact arm measuring ring device, 51-induction ring, 52-central control system, 53-temperature sensor, 54-current detection ring, 55-bearing plate, 56-groove, 57-clamping plate, 58-extension spring.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
Example 1:
The contact arm measuring ring device for the vacuum circuit breaker as shown in fig. 1 to 4 comprises an induction ring 51 and a current detection ring 54, wherein the induction ring 51 and the current detection ring 54 are opposite to each other, a central control system 52 is connected between the induction ring 51 and the current detection ring 54, and the device further comprises a temperature sensor 53 which is fixed on one side of the central control system 52 facing the direction of the center of the induction ring 51 or the current detection ring 54; the central control system 52 comprises a power supply module, a wireless communication module and a processing module; the power module is used for receiving the electric energy generated by the induction electric ring 51 and supplying power to the wireless communication module, the processing module and the temperature sensor 53; the input end of the processing module is connected with the current detection ring 54 and the temperature sensor 53, and the output end of the processing module is connected with the wireless communication module. The induction ring 51 and the current detection ring 54 are coaxial and are sleeved outside the circuit breaker contact arm 3; the central control system 52 is connected to the top of the induction ring 51 and the current detection ring 54, the temperature sensor 53 is arranged on the lower surface of the central control system 52, and the temperature sensor 53 is in contact with the breaker contact arm 3.
Preferably, the induction ring 51 is a current transformer. The current sensing loop 54 is a rogowski coil. The processing module is an analog-to-digital converter.
Example 2:
As shown in fig. 5 and 6, the contact arm measuring ring device for a vacuum circuit breaker is provided with a support plate 55 fixed to the bottom end of the induction ring 51 or the current detecting ring 54, and a groove 56 matched with the bottom of the contact arm 3 of the circuit breaker is provided on the upper surface of the support plate 55. Opposite sides of the bearing plate 55 are hinged with a clamping plate 57 through hinges, and the clamping plate 57 is connected with the outer wall of the bearing plate 55 through a tension spring 58. The inner side surface of the clamping plate 57 is provided with a plurality of convex teeth.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (4)
1. The contact arm measuring annular device for the vacuum circuit breaker is characterized by comprising an induction electric ring (51) and a current detection ring (54), wherein the induction electric ring (51) and the current detection ring (54) are opposite to each other, a central control system (52) is connected between the induction electric ring (51) and the current detection ring (54), and the device also comprises a temperature sensor (53) which is fixed on one side of the central control system (52) towards the direction of the center of the induction electric ring (51) or the current detection ring (54); the central control system (52) comprises a power supply module, a wireless communication module and a processing module; the power supply module is used for receiving electric energy generated by the induction electric ring (51) and supplying power to the wireless communication module, the processing module and the temperature sensor (53); the input end of the processing module is connected with the current detection ring (54) and the temperature sensor (53), and the output end of the processing module is connected with the wireless communication module;
The induction electric ring (51) is coaxial with the current detection ring (54) and is sleeved outside the circuit breaker contact arm (3); the central control system (52) is connected to the tops of the induction electric ring (51) and the current detection ring (54), the temperature sensor (53) is arranged on the lower surface of the central control system (52), and the temperature sensor (53) is in contact with the circuit breaker contact arm (3);
the bottom end of the induction electric ring (51) or the current detection ring (54) is fixed with a supporting plate (55), and a groove (56) matched with the bottom of the circuit breaker contact arm (3) is formed in the upper surface of the supporting plate (55);
opposite sides of the bearing plate (55) are hinged with a clamping plate (57) through hinges, and the clamping plate (57) is connected with the outer wall of the bearing plate (55) through a tension spring (58);
the inner side surface of the clamping plate (57) is provided with a plurality of convex teeth;
The support plate (55) is located between the induction ring (51) and the current detection ring (54).
2. Contact arm measurement ring arrangement for a vacuum circuit breaker according to claim 1, characterized in that the induction ring (51) is a current transformer.
3. The contact arm measurement ring device for a vacuum circuit breaker according to claim 1, wherein the current detection ring (54) is a rogowski coil.
4. The contact arm measurement ring device for a vacuum interrupter of claim 1, wherein said processing module is an analog to digital converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910672565.7A CN110286265B (en) | 2019-07-24 | 2019-07-24 | Contact arm measuring ring device for vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910672565.7A CN110286265B (en) | 2019-07-24 | 2019-07-24 | Contact arm measuring ring device for vacuum circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110286265A CN110286265A (en) | 2019-09-27 |
| CN110286265B true CN110286265B (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910672565.7A Active CN110286265B (en) | 2019-07-24 | 2019-07-24 | Contact arm measuring ring device for vacuum circuit breaker |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114791300B (en) * | 2021-11-15 | 2023-09-12 | 中国石油化工股份有限公司 | Power equipment state detection equipment with visualization function |
| CN114594346B (en) * | 2022-05-09 | 2022-08-23 | 宁波天安智能电网科技股份有限公司 | Near-end measuring device and cubical switchboard of live line |
| CN117092500B (en) * | 2023-10-17 | 2023-12-29 | 甘肃尼特智能科技有限公司 | Circuit breaker reliability detection device |
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