Multifunctional protection detection pressing plate device for electric power

Abstract

The invention discloses a multifunctional protection detection pressing plate device for electric power. The device comprises a base and a throwing-withdrawing plate arranged on the base, wherein thethrowing-withdrawing plate is a plate body with 6 rectangular angles, the plate body between an angle I and an angle IV is a throwing-withdrawing pressing plate, the plate body between an angle II andan angle V is a detection pressing plate, the plate body between an angle III and the angle VI is a test pressing plate, and a change-over switch is arranged on a front surface of the detection pressing plate; a red lamp I and a green lamp I are arranged on the angle II, a red lamp II and a green lamp II are arranged on the angle V, a port connected with a relay protection tester is arranged on the angle III, a contact is formed on one surface, opposite to the base, of each of the angle I, the angle II, the angle III, the angle IV and the angle V; the contacts are matched with the jacks on the base, and a grounding end is arranged at the center of the throwing-withdrawing plate. The device can realize the functions of switching on / off, testing and measuring a secondary circuit, and has the remarkable advantages of being convenient to switch, capable of effectively judging ground potential of the secondary circuit, convenient to connect a relay protection tester, reliable to switch onand off the secondary circuit and the like.

Description

technical field [0001] The invention belongs to the technical field of secondary screen cabinet device accessories for power system power plants and substation protection, and relates to a multifunctional pressure plate device for electric power, which is suitable for the operation of switching on and off the pressure plate of the protection screen cabinet of the substation and relay protection test. Background technique [0002] Substation relay protection equipment is the most important control and protection equipment in the power system. The output characteristics of the relay protection equipment and the characteristics of the high-voltage circuit breaker should match to ensure that the circuit breaker does not lose its breaking ability; During the process, if the corresponding outlet pressure plate of the device is not closed or opened properly, or the ground potential of the circuit at the upper and lower ends of the pressure plate is abnormal, it will cause the switch...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of cumbersome connection of relay protection tester to the protection outlet of the protection device, cumbersome checking potential of the outlet pressure plate of the protection device, and unstable connection of the protection outlet pressure plate, the present invention provides a multifunctional protection detection pressure plate device for electric power, which Including the base and the throw-and-return sheet set on the base, the throw-and-return sheet is a piece with 6 rectangular corners, and the piece between corner I and corner IV is a throw-and-return pressure plate, which is used for the conduction or Breaking; the piece between angle II) and angle V is the detection pressure plate, which is used to measure the potential of the upper end circuit and the lower end circuit of the pressure plate device; the piece between angle III and angle VI is the test pressure plate, which is used in the protection test. Provide test loop collection nodes; a transfer switch is set on the front of the detection plate, red light Ⅰ and green light Ⅰ are set on corner Ⅱ, red light Ⅱ and green light Ⅱ are set on corner Ⅴ, and a relay protection tester is set on corner Ⅲ There are contacts on the opposite side of corner I, corner II, corner III, corner IV and corner V to the base, the contacts match with the socket on the base, and the center of the throw-out piece is provided with a grounding terminal

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