Intelligent solid-sealed polar pole circuit breaker with on-line partial discharge monitoring function

Abstract

The utility model relates to an intelligent solid-sealed polar pole circuit breaker with an on-line partial discharge monitoring function, which comprises a circuit breaker body and a feeder terminal, the feeder terminal and the circuit breaker body are connected into a whole, the circuit breaker body comprises a casing, a solid-sealed polar pole is arranged on the casing, a digital signal conversion module is arranged in the casing, and the digital signal conversion module is connected with the feeder terminal. The digital signal conversion module is in signal connection with the feeder terminal, a partial discharge monitoring probe is arranged at the bottom in the solid-sealed polar pole, and the partial discharge monitoring probe monitors partial discharge in the polar pole; the partial discharge monitoring probe is connected with the digital signal conversion module so as to convert a measured partial discharge signal into a digital signal and transmit the digital signal to the feeder terminal, the feeder terminal is provided with a wireless communication module, and the feeder terminal is in communication connection with a remote background through the wireless communication module; according to the utility model, running state information such as current, voltage, partial discharge, temperature rise and the like in the circuit breaker can be monitored on line, the position of the fault circuit breaker can be judged in time when a fault occurs, and the fault circuit breaker can be disposed in time.

Description

Technical Field

[0001] The utility model relates to the technical field of outdoor circuit breakers, in particular to an intelligent sealed pole circuit breaker with an online partial discharge monitoring function. Background Art

[0002] Outdoor circuit breakers are commonly used power supply equipment. There are many structural forms of outdoor circuit breakers. Currently, the more common one is the sealed pole type circuit breaker. During actual operation, the components in the sealed pole may fail, such as excessive partial discharge, excessive temperature rise, etc. When these fault phenomena occur, they are often not discovered in the first time, resulting in the amplification of the fault impact and even affecting the local power grid operation. Therefore, it is necessary to develop a sealed pole circuit breaker with online monitoring function, which can let the operation and maintenance personnel know in the first time when a fault occurs, and can know the specific location of the faulty circuit breaker. Summary of the invention

[0003] The purpose of the utility model is to solve the problems existing in the above-mentioned prior art and to provide an intelligent sealed pole circuit breaker with an online partial discharge monitoring function.

[0004] The specific scheme of the utility model is: an intelligent sealed pole circuit breaker with an online partial discharge monitoring function, comprising a circuit breaker body and a feeder terminal, the feeder terminal and the circuit breaker body are connected as a whole, the circuit breaker body comprises a casing, a sealed pole is mounted on the casing, a digital signal conversion module is mounted in the casing, a signal connection is made between the digital signal conversion module and the feeder terminal, a partial discharge monitoring probe is mounted at the bottom of the sealed pole, the partial discharge monitoring probe monitors the partial discharge inside the pole; the partial discharge monitoring probe is connected to the digital signal conversion module, so as to convert the measured partial discharge signal into a digital signal and transmit it to the feeder terminal, the feeder terminal is provided with a wireless communication module, and the feeder terminal is connected to a remote background communication through the wireless communication module.

[0005] Furthermore, a temperature rise monitoring probe is installed at the bottom of the sealed pole, and the temperature rise monitoring probe is used to monitor the temperature rise signal at the soft connection in the pole, and the temperature rise monitoring probe is connected to the digital signal conversion module.

[0006] Furthermore, the temperature rise monitoring probe adopts an infrared temperature measuring sensor, and the detection head of the infrared temperature measuring sensor is aimed at the soft connection in the pole.

[0007] Furthermore, the sealed pole is equipped with a zero-sequence voltage sensor and a power-taking capacitor.

[0008] Furthermore, the feeder terminal is provided with a GPS positioning module or a Beidou positioning module.

[0009] Compared with the prior art, the utility model has the following advantages: it realizes online real-time monitoring and query of operating status information such as current, voltage, partial discharge, temperature rise, etc. in the circuit breaker, and can promptly determine the location of the faulty circuit breaker when a fault occurs, thereby facilitating timely disposal of the faulty circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is the front view of the utility model;

[0011] Figure 2 This is a schematic diagram of the internal structure of the solid-sealed pole of the utility model;

[0012] Figure 3 yes Figure 2 AA view;

[0013] In the figure: 1. Casing; 2. Sealed pole; 3. Digital signal conversion module; 4. Vacuum interrupter; 5. Zero-sequence voltage sensor; 6. Power-taking capacitor; 7. Flexible connection; 8. Partial discharge monitoring probe; 9. Temperature rise monitoring probe; 10. Outgoing terminal. DETAILED DESCRIPTION

[0014] See also Figure 1-3 The present embodiment is an intelligent sealed pole 2 circuit breaker with an online partial discharge monitoring function, comprising a circuit breaker body and a feeder terminal, the feeder terminal being connected to the circuit breaker body as a whole, the circuit breaker body comprising a casing 1, the casing 1 being provided with a sealed pole 2, the casing 1 being provided with a digital signal conversion module 3, the digital signal conversion module 3 being signal-connected to the feeder terminal, a partial discharge monitoring probe 8 being provided at the bottom of the sealed pole 2, the partial discharge monitoring probe 8 monitoring the partial discharge inside the pole; the partial discharge monitoring probe 8 being connected to the digital signal conversion module 3, thereby converting the measured partial discharge signal into a digital signal and transmitting it to the feeder terminal, the feeder terminal being provided with a wireless communication module, the feeder terminal being connected to a remote background communication via the wireless communication module.

[0015] A vacuum interrupter 4 is provided at the top of the sealed pole 2 , an outlet terminal 10 is provided at the upper end of the side of the sealed pole 2 , and a flexible connection 7 is provided between the outlet terminal 10 and the bottom of the vacuum interrupter.

[0016] Furthermore, a temperature rise monitoring probe 9 is installed at the bottom of the sealed pole 2 . The temperature rise monitoring probe 9 is used to monitor the temperature rise signal at the soft connection 7 in the pole. The temperature rise monitoring probe 9 is connected to the digital signal conversion module 3 .

[0017] Furthermore, the temperature rise monitoring probe 9 adopts an infrared temperature sensor, and the detection head of the infrared temperature sensor is aligned with the soft connection 7 in the pole.

[0018] Furthermore, the sealed pole 2 is provided with a zero-sequence voltage sensor 5 and a power-taking capacitor 6 .

[0019] Furthermore, the feeder terminal is provided with a GPS positioning module or a Beidou positioning module.

[0020] The working principle of the utility model is as follows: the sound position and sound radiation state generated by the partial discharge inside the pole during the operation of the circuit breaker are monitored by the partial discharge monitoring probe 8, and the temperature rise inside the pole is monitored by the temperature rise monitoring probe 9. The collected partial discharge and temperature rise information are converted into digital signals and sent to the feeder terminal, and the feeder terminal sends them to the remote background through wireless communication. Therefore, when the partial discharge or temperature rise exceeds the set range, the operation and maintenance personnel can know it at the first time, and know the specific location of the faulty circuit breaker through the GPS positioning module or the Beidou positioning module, so as to arrange maintenance personnel to deal with the fault in time.

Claims

1. An intelligent sealed pole circuit breaker with online partial discharge monitoring function comprises a circuit breaker body and a feeder terminal, wherein the feeder terminal is connected to the circuit breaker body as a whole, and the circuit breaker body comprises a casing on which a sealed pole is mounted, and is characterized in that: A digital signal conversion module is installed in the casing, and a signal connection is established between the digital signal conversion module and the feeder terminal. A partial discharge monitoring probe is installed at the bottom of the sealed pole, and the partial discharge monitoring probe monitors the partial discharge inside the pole; the partial discharge monitoring probe is connected to the digital signal conversion module, so as to convert the measured partial discharge signal into a digital signal and transmit it to the feeder terminal. The feeder terminal is provided with a wireless communication module, and the feeder terminal is connected to the remote background communication through the wireless communication module.

2. The intelligent sealed pole circuit breaker with online partial discharge monitoring function according to claim 1 is characterized in that: A temperature rise monitoring probe is also installed at the bottom of the sealed pole. The temperature rise monitoring probe is used to monitor the temperature rise signal at the soft connection in the pole. The temperature rise monitoring probe is connected to the digital signal conversion module.

3. The intelligent sealed pole circuit breaker with online partial discharge monitoring function according to claim 2 is characterized in that: The temperature rise monitoring probe adopts an infrared temperature measuring sensor, and the detection head of the infrared temperature measuring sensor is aimed at the soft connection in the pole.

4. The intelligent sealed pole circuit breaker with online partial discharge monitoring function according to claim 1 is characterized in that: The sealed pole is provided with a zero-sequence voltage sensor and a power-taking capacitor.

5. The intelligent sealed pole circuit breaker with online partial discharge monitoring function according to any one of claims 1 to 4, characterized in that: The feeder terminal is provided with a GPS positioning module or a Beidou positioning module.

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