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A pull-wire reset device for relay protection

A technology of a relay protection device and a reset device is applied in the directions of measuring devices, circuits, measuring electricity, etc., and can solve the problems of reduced work efficiency and increased labor intensity.

Active Publication Date: 2019-10-08
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a pull-wire reset device for relay protection to solve the technical problems of increased labor intensity and reduced work efficiency caused by operators needing to keep getting up and squatting down to operate the reset button during the current test process

Method used

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  • A pull-wire reset device for relay protection
  • A pull-wire reset device for relay protection
  • A pull-wire reset device for relay protection

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Embodiment Construction

[0029] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0030] During the test of the relay protection device, since the relay protection test equipment is placed on the ground, the test personnel need to squat to operate the relay protection tester, and the reset button is fixed at a higher position on the protective screen of the tester, so that As a result, the test personnel need to keep getti...

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Abstract

The invention provides a pull-wire type return device for relay protection, which comprises a sleeve and a fixing jaw, wherein a spring, a rotatable disk, a pull wire, a connecting rod and a push rodare arranged in the sleeve in turn; in use, when the tester manually pulls down the pull wire, the rotatable disk moves forward under the pulling force of the pull wire, and the connecting rod also moves forward. At this time, the connecting rod exerts a forward pushing force on the pushing rod, and the pushing rod squeezes the return button, thereby realizing the closure of the return button. When the tester releases the pull wire, the spring pulls the rotatable disk backward by elastic deformation, and the connecting rod also moves backward. At this time, the connecting rod exerts a backwardtraction force on the pushing rod, and the pushing rod moves backward away from the return button under the action of the traction force, so as to realize the disconnection of the return button. As such, the return button can be turned on and off only by manually pulling the pull wire and releasing the pull wire, the labor intensity of the tester can be reduced simply and directly, and the work efficiency of the tester can be improved.

Description

technical field [0001] The present application relates to the technical field of relay protection devices, in particular to a pull-wire reset device for relay protection. Background technique [0002] The relay protection device is one of the most important equipment in the power system. The intact function of the relay protection device and the normal operation of the equipment are the guarantee for the safe and stable operation of the power grid. The periodic inspection of the relay protection device or the handover test before the new equipment is put into production requires verification and testing of the principle, logic and function of the protection device. [0003] During the test process, faults need to be simulated continuously, and the relay protection device operates continuously, which requires the tester to manually reset the action signal and action message of the relay protection device, that is, the tester needs to continuously operate the reset button , a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H13/52G01R1/02
Inventor 张曦源陈勇李俊鹏张树培秦超李明泽
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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