GIL (globalization, internationalization and localization) breakdown discharge positioning detecting system

GIL (globalization, internationalization and localization) breakdown discharge positioning detecting system

  • CN 104,698,354 A
  • Filed: 03/13/2015
  • Published: 06/10/2015
  • Est. Priority Date: 03/13/2015
  • Status: Active Application
First Claim
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1. a GIL breakdown breakdown location detection system, it is characterized in that, described system installs several vibration detection devices by attaching every 10 ~ 20 meters on GIL equipment, if the output voltage of described vibration detection device is more than or equal to certain threshold value, then think described vibration detection device place position or neighbouringly there is breakdown electric discharge;

  • When there is breakdown electric discharge, by contrasting the vibration signal intensity captured from same GIL equipment, then can think that the position of the vibration signal pick-up unit position distance generation breakdown electric discharge collecting strongest signal strength is nearest;

    Described vibration detection device comprises sensor, the vibration signal of reception is converted to voltage signal and exports by described sensor, and carry out signal condition by low-pass filter circuit unit, subtraction circuit unit, amplifier circuit unit, and by radio-frequency module, voltage signal is exported successively;

    Described low-pass filter circuit unit is for realizing the high-frequency interferencing signal in filtering vibration signal;

    Described subtraction circuit unit removes sensor output signal DC biased level for realizing;

    Described amplifier circuit unit is used for realizing amplifying vibration signal;

    Described radio frequency unit is used for, in substation, vibration signal data are carried out wireless transmission and reception;

    Described threshold value sets according to site test after having disposed described vibration detection device.

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