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Ground trial jump device of residual current operated protective device

A technology of residual current and protector, applied in the field of electric power, can solve the problems of hidden danger, time-consuming, breaking, etc., and achieve the effect of improving detection efficiency, convenient use and eliminating hidden dangers.

Inactive Publication Date: 2011-05-25
HUZHOU ELECTRIC POWER ADMINISTATION ZHEJIANG PROV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the ground-to-ground test trip operation of the residual current action protector, the power distribution operators use semi-fixed test trip devices and portable test trip pens, which have the following defects: the ground test jumper is not completely fixed, and the test The jumper is easy to oxidize and break, the location of the jumper is unreasonable, and the operation behind the power distribution cabinet must use a climbing tool, which is time-consuming, and there are still potential safety hazards during the operation

Method used

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  • Ground trial jump device of residual current operated protective device
  • Ground trial jump device of residual current operated protective device
  • Ground trial jump device of residual current operated protective device

Examples

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Embodiment Construction

[0012] Such as Figure 1 to Figure 2 As shown, the residual current operated protector to ground test trip device includes a test trip fixed box 1, a light-emitting diode 2 and a trial trip button 3 arranged on the test trip fixed box 1 . The light-emitting diode 2 and the jump button 3 are connected through a printed circuit 4 provided. The jumping fixed box 1 is provided with a connection terminal 5 , and a fuse 6 is provided between the connection terminal 5 and the printed circuit 4 . A ground wire 7 is provided inside the test jump fixing box 1 , and a current limiting resistor 8 and a test trip resistor 9 are arranged between the printed circuit 4 and the ground wire 7 .

[0013] When in use, directly fix the trial jump fixing box 1 on the cabinet body, and only need to press the trial jump button 3 during operation, which is convenient and efficient. Button trial jumping, operation in front of the cabinet, changing the installation position. Install the trial jumping ...

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Abstract

The invention provides a ground trial jump device of a residual current operated protective device. The ground trial jump device comprises a trial jump fixed box, a light emitting diode arranged on the trial jump fixed box and a trial jump button. The ground trial jump device is convenient to use, can eliminate potential safety hazard, and improves the detection efficiency.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a ground test tripping device for a residual current operated protector. Background technique [0002] The ground test device of the residual current operated protector is to test whether the residual current operated protector can cut off the power immediately in the case of leakage of power lines and electrical equipment, so as to act as a simulation test device for protecting electrical equipment, people and animals. According to regulations, residual current operated protectors installed on rural public transformers must perform simulated leakage test trips and ground test trips every month to verify whether they can operate reliably under the set residual current and ensure rural public power distribution. The installation rate, commissioning rate, and intact rate of residual current-operated protectors installed on the outgoing line of each 0.4kV line of the transformer reache...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 沈永强林中明姚瑞根
Owner HUZHOU ELECTRIC POWER ADMINISTATION ZHEJIANG PROV
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