A multifunctional protection detection pressure plate device for electric power

Abstract

The invention discloses a multifunctional protection detection pressure plate device for electric power, which includes a base and a throwing and retreating sheet arranged on the base. The throwing and retreating sheet is a sheet body with 6 rectangular corners. The sheet body is the throwing and withdrawing pressure plate, the sheet body between corner II and angle V is the detection pressure plate, the sheet body between angle III and angle VI is the test pressure plate, a changeover switch is set on the front of the detection pressure plate, and a red switch is set on the corner II. Light Ⅰ and green light Ⅰ, red light Ⅱ and green light Ⅱ are set on corner Ⅴ, ports connected to relay protection tester are set on corner Ⅲ, corner Ⅰ, corner Ⅱ, corner Ⅲ, corner Ⅳ, corner Ⅴ are opposite to the base There is a contact on one side, and the contact is matched with the jack on the base, and the center of the throwing and withdrawing sheet is provided with a grounding terminal; this device can realize the functions of secondary circuit breaking, testing and measuring, and has the advantages of convenient switching and effective It has significant advantages such as judging the potential of the secondary circuit to ground, being able to connect the relay protection tester conveniently, and reliably disconnecting the secondary circuit.

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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