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Fixed vacuum breaker switch cabinet

A vacuum circuit breaker, fixed technology, applied in switchgear, switchgear setting, substation/switchgear board/panel/desk, etc., can solve the problems of inconvenient cable installation and maintenance, large cable room space, etc. The effect of reducing difficulty, reducing volume, and reducing length

Inactive Publication Date: 2006-10-04
SUCTRN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The base of the vacuum circuit breaker 5' of this kind of switchgear is facing downwards. For upright installation, the circuit breaker installation bracket must be installed in the cable room, and the conductive connection of the main circuit must keep a sufficient insulation distance from the bracket. The space is large, which brings inconvenience to cable installation and maintenance

Method used

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  • Fixed vacuum breaker switch cabinet
  • Fixed vacuum breaker switch cabinet
  • Fixed vacuum breaker switch cabinet

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Embodiment Construction

[0029] Such as figure 2 , image 3 As shown, the fixed vacuum circuit breaker switchgear of the present invention includes a busbar chamber 10 , a circuit breaker cable chamber 20 , an operating mechanism relay protection chamber 1 , a busbar 2 , a three-position isolating switch 3 and a vacuum circuit breaker 4 .

[0030] The busbar 2 is arranged in the rear, middle and front of the three phases A, B, and C. The incoming line terminal of the three-position isolating switch 3 is connected to the busbar 2 installed in the busbar room 10. The three-position isolating switch 3 The outlet end is connected with the outlet end of the vacuum circuit breaker 4 installed in the cable chamber 20 of the circuit breaker.

[0031] Such as Figure 4 , Figure 5 , Image 6 As shown, the three-position isolating switch 3 is mainly composed of an on-off operating mechanism 31, a transmission shaft 30, an insulating pull rod 32, an insulating arm 40, an isolating knife 33, a bus end static...

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Abstract

The invention discloses a fixed type vacuum circuit breaker switch cabinet, which is composed of the cabinet, mother line, isolating switch which can connect with the outlet terminal of the mother line, vacuum circuit breaker, which isolates the switch connection through connecting mother line, and wall-perforating clapboard insulator. The abovementioned wall-perforating clapboard insulator has the wall-perforating clapboard which separates the mother line cabinet from the cable cabinet. The installing pedestal butt of the vacuum circuit breaker connects with the pedestal of the wall-perforating clapboard insulator. Because the vacuum circuit breaker is fixed invertedly, the pedestals of the inverted vacuum circuit breaker and the isolating switch are both at the joint part of the mother line cabinet and the cable cabinet, which makes the vacuum circuit breaker and the operating mechanism of the isolating switch so close that they can be installed in one operational cabinet. It not only can dispense with the supporting rack of the circuit breaker, but also makes the electric part of the main circuit unnecessary to keep enough insulation distance against ground with the supporting rack.

Description

technical field [0001] The invention relates to a switchgear for a power system, in particular to a fixed vacuum circuit breaker switchgear. Background technique [0002] At present, the 12KV circuit breaker switchgear at home and abroad can be roughly divided into two categories, one is the removable circuit breaker switchgear, and the other is the fixed circuit breaker switchgear. During maintenance, the removable switchgear is more convenient than the fixed switchgear. Although the removable switchgear has added a push-in mechanism and a valve in order to realize the removal function, it has also added a more complicated mechanical interlock to adapt to it. At the same time There are one more plug-in points of six moving and static contacts, and 24-56 times of plug-in points, which not only increases the manufacturing cost and manufacturing difficulty, but also increases unreliable factors. However, the removable switchgear is still favored by users for its small size, c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B13/00H02B1/04H02B1/20
Inventor 薛宝根
Owner SUCTRN TECH
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