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A switch operating mechanism and its control circuit

A technology for operating mechanisms and control circuits, applied to circuits, electric switches, electrical components, etc., can solve problems such as unresolved malfunctions of operating mechanisms, and achieve the effect of avoiding malfunctions and continuous malfunctions

Active Publication Date: 2020-01-07
HENAN PINGGAO ELECTRIC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a switch operating mechanism and its control circuit, which is used to solve the problem of malfunction of the operating mechanism that cannot be solved in the prior art

Method used

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  • A switch operating mechanism and its control circuit
  • A switch operating mechanism and its control circuit
  • A switch operating mechanism and its control circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The present invention also proposes a switch operating mechanism, such as figure 2 As shown, it includes a control circuit. The control circuit includes a switch opening and closing control circuit and a motor circuit, and also includes a first branch and a second branch connected to the power supply respectively. The first branch includes the first switch and the second branch connected in series. A relay and a second switch, the first switch is used to close when it is detected that the switch operating mechanism is on the position of opening or closing, the second switch is the opening and closing switch set in the switch opening and closing control circuit The normally open contact of the relay is used to close when the switch opening and closing control circuit sends the switch opening and closing control signal.

[0051] The second branch includes the normally open contact of the first relay and the electromagnet coil connected in series in sequence, and the seco...

Embodiment approach

[0066] as above figure 2 As shown, this design can accurately locate the isolation, grounding and intermediate positions of the GIS, ensuring that the contact opening distance of the GIS isolation and grounding switch meets the performance requirements. Its specific design implementation plan is as follows:

[0067] The electromagnet 5 coil is energized, the electromagnet armature 8 is attracted and moves upward in the slideway of the slideway plate 6 through the pin shaft 7, and at the same time, the control panel 4 is pushed to rotate around the axis, so that the roller 9 is separated from the stop control cam 10 to realize three conversion of a station. When the movable contact of the body moves to the end position, the stop control cam 10 rotates one revolution, and the roller 9 falls back into the groove of the stop control cam 10 under the action of the coil spring. Through the curve design of the cylindrical cam, the stop control cam 10 will not output angle changes ...

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Abstract

The invention relates to a switch operating mechanism and a control circuit thereof, A switch open / closing control loop and a motor loop are matched by a first branch circuit and a second branch circuit, As that switch open and closing control circuit is turned on and the corresponding opening or closing control is carry out, Second switch closed, detecting the position state of the switch operating mechanism, when the switch actuating mechanism is detected to be at the set station, The first switch is closed, at this time, the first branch is energized, the normally open contact of the firstrelay is closed, the second branch is switched on, the electromagnet coil of the switch operating mechanism is charged, the switch operating mechanism is unlocked, the motor in the motor circuit afterunlocking performs corresponding forward rotation or reverse rotation, and executes corresponding switching or cooperation instructions. Prior to the next station control of the operating mechanism,the invention detects whether the stop position of the operating mechanism is at the stop position of the closing position or the opening position, and if so, unlocks the switch operating mechanism, avoids the continuous maloperation of the operating mechanism, and ensures the stability of the operating mechanism.

Description

technical field [0001] The invention belongs to the technical field of GIS substations, and in particular relates to a switch operating mechanism and a control circuit thereof. Background technique [0002] In recent years, with the development of gas-insulated metal-enclosed switchgear (GIS), especially in 110kV GIS and 220kV GIS, three-position isolation and earthing switches are more and more widely used. The three-station operating mechanism is adopted by more and more power station manufacturers because of its small size, compact structure, high degree of compounding, and flexible and diverse configuration methods. The overall layout of the three-station operating mechanism is shown in figure 1 shown. [0003] The three-position switch needs to move in two directions to realize the conversion of three positions (DS closing position: isolating switch close + grounding switch opening; DS, ES opening position: isolating switch opening + grounding switch opening; ES closin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H9/54H01H9/20
CPCH01H9/20H01H9/54
Inventor 宋广民张亚辉刘宇王守山朱苛娄宋超郭良超孔志武
Owner HENAN PINGGAO ELECTRIC
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