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Ambient Temperature Detection Device for Power Capacitor Based on Thermistor

Active Publication Date: 2020-01-31
SHANGHAI MUNICIPAL ELECTRIC POWER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the detector does not provide information on the exact temperature and location where the alarm occurred

Method used

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  • Ambient Temperature Detection Device for Power Capacitor Based on Thermistor
  • Ambient Temperature Detection Device for Power Capacitor Based on Thermistor
  • Ambient Temperature Detection Device for Power Capacitor Based on Thermistor

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0024] Such as figure 1 As shown, this embodiment provides a thermistor-based power capacitor ambient temperature detection device including a thermistor temperature measurement module 1, an information processing module 2, a wireless module 3 and an alarm display module 4, wherein the thermistor temperature measurement module 1 is connected to the information processing module 2, and the wireless module 3 is connected to the information processing module 2 and the alarm display module 4 respectively.

[0025] The information processing module 2 includes a controller 21 and a memory ...

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Abstract

The invention relates to a power capacitor ambient temperature detection device based on a thermistor, which includes a thermistor temperature measurement module, an information processing module, a wireless module and an alarm display module, wherein the thermistor temperature measurement module is connected with the information processing module, wirelessly The modules are respectively connected with the information processing module and the alarm display module. The thermistor temperature measurement module includes a series circuit composed of a DC power supply, a DC ammeter, a thermistor group and a protection resistor. The thermistor group includes six parallel-connected thermistors, which are installed on six faces of the power capacitor respectively. As long as there is a problem with any surface of the power capacitor, it will cause an alarm. The invention has the characteristics of high detection sensitivity, high reliability, real-time monitoring, low cost, and convenient follow-up circuit maintenance.

Description

technical field [0001] The invention relates to a temperature detection device, in particular to a power capacitor ambient temperature detection device based on a thermistor. Background technique [0002] Power capacitors are widely used, mainly used in reactive power compensation of power systems, and their safe operation plays a very important role in the reliability and safety of the power supply of the entire power system. At present, the temperature of the power capacitor has not been monitored in real time, and the failure of the power capacitor will cause the temperature to be too high, which will easily damage the capacitor and cause safety problems, making the reactive power compensation unable to operate normally. [0003] At present, the detection of power capacitors mainly adopts regular, manual, and power-off preventive tests, focusing on prevention, and cannot detect small changes in power capacitors. [0004] The application number is 201310353018.5, and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K7/22G01K1/02G01K1/024
Inventor 盛连军张星金胤豪茅晓亮
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO