Supporting structure of closing resistor unit for circuit breaker

Patent metadata

Field	Value
Publication number	US-9620314-B2
Application number	US-201514803957-A
Country	US
Kind code	B2
Filing date	Jul 20, 2015
Priority date	Aug 7, 2014
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

Disclosed is a supporting structure of a closing resistor unit for a circuit breaker which connects the closing resistor unit to the fixed portion through the first supporting plate and the second supporting plate to allow the closing resistor unit to move back and forth with respect to the fixed portion through the first supporting plate and to move up and down with respect to the fixed portion through the second supporting plate, whereby the closing resistor unit or its joints may be prevented from being damaged from impact.

First claim

What is claimed is:

1. A supporting structure including a closing resistor unit for a circuit breaker, the closing resistor unit being connected to a fixed portion of the circuit breaker provided in a gas insulation switchgear (GIS) to prevent a point of contact accident between a moving portion and the fixed portion, the supporting structure comprising:
a first supporting plate connected at a front upper end of the closing resistor unit, having one end rotatably connected to an upper end of the fixed portion and another end rotatably connected to an upper end of the closing resistor unit; and
a second supporting plate connected at a center of the closing resistor unit, having one end rotatably connected to a side of the fixed portion and another end connected to the closing resistor unit.

2. The supporting structure including the closing resistor for the circuit breaker of claim 1 , wherein:
the first supporting plate is provided with one or more first supporting plate fastening holes formed at both sides,
one end of the first supporting plate is rotated while connected to the fixed portion as a fastening member is fastened to the fixed portion and the closing resistor unit by passing through the first supporting plate fastening holes, and
another end of the first supporting plate is rotated while connected to the closing resistor unit.

3. The supporting structure including a closing resistor unit for a circuit breaker of claim 1 , wherein:
the second supporting plate is provided with a through hole formed at one end through which the closing resistor unit passes,
one or more second supporting plate fastening holes formed at the other end of the second supporting plate, and
the closing resistor unit is rotated by the second supporting plate as a fastening member is fastened to the fixed portion through the one or more second supporting plate fastening holes.

4. The supporting structure including the closing resistor for the circuit breaker of claim 3 , wherein the fastening member is provided with a head formed at an upper portion, and the one or more second supporting plate fastening holes are further provided with a head seating portion on which the head is seated.

Assignees

• Lsis Co Ltd

Inventors

• Lim Woo Seung

Classifications

• H02B13/025

  Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect · CPC title

• H01H85/42

  using an arc-extinguishing gas (characterised by the composition of the gas H01H33/22) · CPC title

• H01H33/16 Primary

  Impedances connected with contacts · CPC title

• H01H33/168

  the impedance being inserted both while closing and while opening the switch · CPC title

• H01H71/10 Primary

  Operating or release mechanisms · CPC title