Electric field induction energy-taking temperature measuring device for 10kV switch ring main unit

Abstract

An electric field induction energy-taking temperature measuring device for a 10kV switch ring main unit comprises a housing, and an energy-taking circuit, a main power supply circuit, a wireless sending module, a temperature detecting module and a control circuit that are packaged in the housing. The main power supply circuit is connected with the wireless sending module to provide working voltage to the wireless sending module. The temperature detecting module is connected with the wireless sending module to send out temperature data detected by the temperature detecting module through the wireless sending module. The control circuit is arranged between the anode input end of the main power supply circuit and the output end of the energy-taking circuit to conduct intermittent control over cutting or connection of the main power supply circuit. Through the technical scheme, an ultra-low power consumption voltage comparator and an ultra-low power consumption Bluetooth 4.2 wireless module are adopted to enable static power consumption of the temperature measuring device to be the lowest, and the energy-taking control circuit cuts off loads in a static state of a system, so power consumption of the system is further reduced.

Description

technical field [0001] The invention relates to the technical field of temperature monitoring in electric power systems, in particular to an electric field induction energy harvesting and temperature measuring device for a 10kV switch ring network cabinet. Background technique [0002] In the patent with application number 2012104106839, an on-line temperature measurement and wireless transmission device for isolating switch contacts powered by electric field induction is disclosed. The induction circuit of the patent includes a high-voltage electric field induction energy harvesting circuit, a pulse discharge circuit, temperature measurement and wireless transmission. circuit. [0003] The energy storage and control circuit in this patent is composed of semiconductor switches, step-down pulse transformers, diodes and large-capacity energy storage capacitors, which are large in size and high in energy consumption, and the control circuit is in a long-term conduction state, w...

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Problems solved by technology

[0003] The energy storage and control circuit in this patent is composed of semiconductor switches, step-down pulse transformers, diodes and large-capacity energy storage capacitors, which are large in size and high in energy consumption, and the control circuit is in a long-term conduction state, which further increases energy consumption. , so the device can only be limited to power systems with a voltage level of 110kV and above, and occasions where the energy obtained by electric field induction is relatively large

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