High voltage switch cabinet misoperation preventing device
An anti-misoperation device, high-voltage switchgear technology, applied in electrical switches, electrical components, circuits, etc., can solve the problems of complex mechanism, large space occupation, complex structure, etc., to achieve safe and reliable operation, small space occupation, and increased volume Effect
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[0026] Example one
[0027] Such as figure 1 , figure 2 , image 3 As shown, the high-voltage switchgear used in the power system is usually composed of the cabinet and its internally installed vacuum circuit breakers, isolating switches, grounding switches and other operating elements. The cabinet is equipped with an upper door, a middle door 8 and a lower door 6. There are two cabinet doors, and a beam 1 is provided between the middle door 8 and the lower door 6.
[0028] The anti-misoperation device of the present invention includes: an operating hole for coaxial opening and closing of an isolating switch and a grounding switch, a movable shielding plate 3 for controlling the opening and closing of the operating hole, a vacuum circuit breaker and an isolator Switch and grounding switch interlocking mechanism, cabinet door and isolating switch and grounding switch interlocking mechanism, and grounding switch and cabinet door interlocking mechanism.
[0029] The operating hole is ...
Example Embodiment
[0035] Example two
[0036] See Figure 4 As a further improvement, an opening and closing limit sleeve 23 can be provided at the operating end of the operating shaft 4. The opening and closing limit sleeve 23 is radially provided with two limit slots 24 on the peripheral side. 3 is fixedly installed with a linkage pin 25 that can be matched with the limit slot 24, and the linkage pin 25 moves together with the shielding plate 3. Of course, the linkage pin 25 can also be installed on the shielding plate 3 through the connecting seat 26, so The extension length of the linkage pin 25 can be adjusted, which is more convenient to use. During use, if the opening / closing operation of the isolation / grounding switch is in place and the operating handle is pulled out, one of the limit slots 24 corresponds to the position of the linkage pin 25, and the shield 3 can be moved to the right. Vacuum circuit breaker closing operation; if the opening / closing operation of the isolation / grounding...
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