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Emergency processing device for turn-to-turn short circuit faults of dry-type reactor

An inter-turn short-circuit fault, dry-type reactor technology, applied in the direction of electrical winding testing, etc., can solve the problems such as the inability of the overcurrent relay to operate to prevent secondary faults, and the inability of the current transformer to sense the fault current.

Pending Publication Date: 2022-02-01
国网河南省电力公司超高压公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the reactor has an inter-turn short circuit fault, the fault current only exists inside the reactor body, the current transformer cannot sense the fault current, and the overcurrent relay cannot operate to prevent secondary faults

Method used

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Examples

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Embodiment 1

[0025] Embodiment 1: An emergency treatment device for an inter-turn short circuit fault of a dry-type reactor, including a temperature acquisition device, a hard disk video recorder, a background server, an integrated monitoring machine, and a measurement and control device. In this embodiment, the hard disk video recorder has a built-in slave controller and a 5G communication module at the collection end, and the slave controller is electrically connected to the 5G communication module at the collection end. The main controller and the 5G communication module of the control end are built into the background server, and the main controller and the 5G communication module of the control end are electrically connected. The 5G communication module at the acquisition end and the 5G communication module at the control end are connected through wireless network networking. The background server processes the temperature data through an algorithm, outputs an alarm, locks the contact...

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PUM

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Abstract

The invention relates to an emergency processing device for turn-to-turn short circuit faults of a dry-type reactor. The emergency processing device comprises a dry-type reactor operation temperature sensor, a control processor, an automatic voltage control device and a dry-type reactor protection switch; the dry-type reactor operation temperature sensor is used for sensing the operation temperature of the dry-type reactor and outputting a temperature sensing signal; the control processor is used for receiving the temperature sensing signal, and when the temperature corresponding to the temperature sensing signal is larger than or equal to a first threshold value, the control processor outputs an automatic voltage control device locking signal and a dry type reactor protection switch disconnection signal in sequence; the automatic voltage control device responds to the locking signal of the automatic voltage control device and executes a locking action; and the dry-type reactor protection switch responds to the dry-type reactor protection switch turn-off signal and executes a turn-off action. The dry-type reactor turn-to-turn short circuit fault can be handled emergently.

Description

technical field [0001] The invention relates to the technical field of emergency treatment of inter-turn short-circuit faults of dry-type reactors, in particular to an emergency treatment device for inter-turn short-circuit faults of dry-type reactors. Background technique [0002] At present, dry-type reactors in substations are protected by overcurrent relays, but overcurrent relays can only effectively isolate phase-to-phase short-circuit and phase-to-ground short-circuit faults. When the reactor has an inter-turn short circuit fault, the fault current only exists inside the reactor body, the current transformer cannot sense the fault current, and the overcurrent relay cannot operate to prevent secondary faults. Contents of the invention [0003] The object of the present invention is to provide an emergency treatment device for inter-turn short-circuit fault of dry-type reactor, which is used for emergency treatment of inter-turn short-circuit fault of dry-type reactor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/72
CPCG01R31/72
Inventor 康建准申晓春刘艳红路轶恒张慧杰王灵贵张海涛王宇昕陈浩闫煜铭
Owner 国网河南省电力公司超高压公司
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