An earthing switch locking device, an earthing switch and a combination switch
A technology of grounding switch and locking device, which is applied to grounding switches, air switch parts and other directions, can solve the problems of grounding switch locking plate in the opening position and the accumulated error of transmission, and achieves a simple structure and avoids rotation at the closing position. , locking and reliable effect
Active Publication Date: 2018-08-28
STATE GRID CORP OF CHINA +3
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The object of the present invention is to provide a grounding switch interlocking device with reliable interlocking, which is used to solve the problems in the prior art that the grounding switch interlocking plate is still locked due to on-site assembly errors or ground settlement during long-term use or cumulative transmission errors. There is no problem that it is already in the opening position when it is in contact with the interlock plate of the isolating switch; at the same time, the invention also provides a grounding switch using the grounding switch locking device; the invention also provides a grounding switch using the grounding switch Combination Switch
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0023] Embodiment 1 of the combined switch of the present invention includes a grounding switch and a capacity boosting DC isolating switch. Of course, other isolating switches can also be used in other embodiments. For ease of description, the following are collectively referred to as disconnectors.
[0024] like Figure 2-5 As shown, the interlocking state of the isolating switch with the earthing switch and the interlocking state of the earthing switch with the isolating switch are respectively indicated when the isolating switch is closed. Among them, the grounding switch such as figure 1 As shown, it includes a grounding switch shaft 1 and a grounding switch locking device. The grounding switch locking device includes a grounding switch interlocking plate 10 mounted on the grounding switch shaft 1 and an adjustment member arranged on the grounding switch interlocking plate 10. 11. The grounding switch interlock plate 10 is perpendicular to the axis of the grounding swit...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides an earthing switch locking device, an earthing switch, and a combined switch. The earthing switch comprises an earthing switch interlocking plate which is disposed on a rotating shaft of the earthing switch. The earthing switch interlocking plate is provided with a blocking end, and is also provided with an adjustment part. The adjustment part is provided with an extension segment which extends forwards from the blocking end and is used for abutting against a disconnecting switch interlocking plate when the earthing switch is located at a switching-off position. The length of a part, extending out of the blocking end, of the extension segment can be adjusted. In use, the extension segment of the adjustment part abuts against the disconnecting switch interlocking plate. The earthing switch can achieve the effective locking, is prevented from rotating in the switching-on direction, and is relatively reliable in locking.
Description
technical field [0001] The invention relates to a grounding switch locking device, a grounding switch and a combination switch. Background technique [0002] As a switchgear for DC transmission system, the DC isolating switch is of great significance for its reliable and safe operation. When overhauling the equipment in the DC field, it is required that the equipment in the DC field can be reliably isolated and grounded. Reliable mechanical interlock between the switch and the grounding switch to prevent the isolating switch from being closed due to man-made or other accidents when the grounding switch is closed and grounded. [0003] The end of the rotating shaft of the isolating switch is provided with an arc-shaped isolating switch interlocking plate perpendicular to the axis of the rotating shaft, which can move with the rotation of the rotating shaft of the isolating switch. The end of the rotating shaft of the earthing switch is provided with a fan-shaped interlocking ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01H31/04
CPCH01H31/003H01H31/04
Inventor 胡延涛熊萍萍孙珂珂马志华朱继斌门博
Owner STATE GRID CORP OF CHINA