A double operation hole three-position isolating switch mechanism and its interlocking device
An isolation switch, isolation interlocking technology, applied in the direction of air switch parts, etc., can solve the problem of lack of isolation and distinction
Active Publication Date: 2019-11-12
SHANGHAI PINGGAO TIANLING SWITCHGEAR CO LTD +2
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Problems solved by technology
[0009] One of the technical problems to be solved by the present invention is to provide a double operation hole three-way switch for the above-mentioned problem that the existing three-position isolating switch has no isolation distinction in the manual operation of the single-hole operating mechanism for the closing and opening operation and the grounding operation. bit isolating switch mechanism
[0010] One of the technical problems to be solved by the present invention is to provide a device with the above-mentioned double operation hole for the above-mentioned problem that the existing three-position isolating switch has no isolation distinction in the manual operation of the single-hole operating mechanism for the closing and opening operation and the grounding operation. Interlocking device of three-position isolating switch mechanism
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[0046] Compared with the three-position isolating switch mechanism with single-hole operation, the device of the present invention can not only greatly improve the anti-operation performance of the three-position isolating switch and improve the reliability of the switch, but also the double-hole operation interface is more intuitive and more suitable for operators usage habits.
[0047] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0048] see Figure 1 to Figure 3 , The three-position isolating switch is installed in a closed air box, which consists of three sets of brake contacts 1, three sets of intermediate contacts 2, three sets of moving contacts 3, three sets of grounding contacts 4, three screw rods 7 and three A set of sprockets 5 and a chain 6, each set of moving contacts 3 is driven by a screw 7, the head of each screw 7 is equipped with a connecting shaft 8, the connecting shaft 8 ...
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The invention discloses a double-operation hole three-station disconnector mechanism, which includes a three-station disconnector, the three-station disconnector is driven by a chain drive mechanism for opening, closing and grounding, the chain drive mechanism is driven by a drive spocket, the double-operation hole three-station disconnector mechanism is characterized in that the drive sprocket isdriven by a worm shaft, a gear transmission mechanism and an isolation closing and opening operation shaft and a grounding closing and opening operation shaft, wherein the isolation closing and opening operation shaft and the grounding closing and opening operation shaft are respectively arranged in two different operation holes. The invention also discloses an interlocking device having the double-operation hole three-station disconnector mechanism. The invention changes the single-operation hole mode of the existing three-station disconnector into the double-operation hole mode, and realizes mutual locking between the two operation holes through a reliable interlocking device, effectively improves the anti-error performance of the operation mechanism, and increases the reliability of artificial operation.
Description
technical field [0001] The invention relates to the technical field of electric equipment, in particular to a three-position isolating switch mechanism with double operation holes for realizing the closing, opening and grounding actions of a three-position isolating switch in a gas box in a gas-insulated switchgear and its interlocking device. Background technique [0002] Gas-insulated metal-enclosed switches have been widely accepted by users in recent years for their high reliability, maintenance-free, miniaturized, and unaffected by the environment, and have been practically applied in many construction projects. Among them, the three-position isolating switch is an important component of the gas insulated switchgear. It is evolved from the combination of the original isolating switch and the grounding switch, and plays the role of connecting, isolating and grounding the primary circuit. The three-station isolating switch is driven by the operating mechanism through the...
Claims
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IPC IPC(8): H01H31/04H01H31/06
CPCH01H31/04H01H31/06
Inventor 陆逸朱晓东王陆一
Owner SHANGHAI PINGGAO TIANLING SWITCHGEAR CO LTD
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