Partial discharge routing inspection device applicable to multiple detection methods

Abstract

The invention discloses a partial discharge routing inspection device applicable to multiple detection methods. The device comprises an ultrahigh-frequency sensor with the frequency band ranging from 500 MHz to 1.5 GHz, a high-frequency current sensor with the frequency band ranging from 0.5 MHz to 50 MHz, a ground electric wave sensor, a contact ultrasonic sensor and a non-contact ultrasonic sensor. The ground electric wave sensor and the non-contact ultrasonic sensor are arranged inside a host, the ultrahigh-frequency sensor and the high-frequency current sensor transmit data to the host in a wireless mode through a wireless collection module, the host is mainly composed of a signal collection unit, a data processing module and a human-computer interaction interface, and the host analyzes collected partial discharge data, judges whether partial discharge exists or not, analyzes the partial discharge type and evaluates working conditions of high voltage electric power equipment. The partial discharge routing inspection device is compact in structure and convenient to carry, has multiple detection functions and effectively detects partial discharge of the high voltage electric power equipment on site with the multiple detection methods.

Description

technical field [0001] The invention relates to the field of live detection of partial discharge of high-voltage power equipment, and more specifically relates to a partial discharge inspection device suitable for multiple detection methods. Background technique [0002] At present, the function of the instrument for partial discharge detection of high-voltage power equipment is relatively single, and the detection principle of the instrument used is mostly a single sensor. For example, the existing GIS partial discharge tester mostly uses a single UHF or single ultrasonic detection principle, switch Most of the cabinets adopt the detection principle of ground electric wave (TEV), and the detection principle of high frequency current (HFCT) is mostly used for cables. Existing partial discharge detection equipment is bulky, inconvenient to carry, has a single detection method, and often requires an external device power supply, which has a certain impact on detection efficien...

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Problems solved by technology

[0002] At present, the function of the instrument for partial discharge detection of high-voltage power equipment is relatively single, and the detection principle of the instrument used is mostly a single sensor. For example, the existing GIS partial discharge tester mostly uses a single UHF or single ultrasonic detection principle, switch Most of the cabinets adopt the detection principle of ground electric wave (TEV), and the detection principle of high frequency current (HFCT) is mostly used for cables.

The existing partial discharge detection equipment is bulky, inconvenient to carry, single detection method, and often requires an external device power supply, which has a certain impact on detection efficiency and convenience

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