System and a method for adjusting a length of an insulating rod for a high voltage circuit breaker and a high voltage circuit breaker
AssigneeHitachi Energy Ltd
InventorsNils Henrik Furrer, Guenter Steding
Life of this patent
Estimating the term…
Abstract
A system for adjusting a length of an insulating rod of a high voltage circuit breaker includes a clutch and a fitting. The clutch includes a thread with a given thread pitch, and the fitting includes a thread with a given thread pitch formed in coordination with the thread of the clutch. The fitting is adjustably coupled with the clutch by means of the threads and the fitting is configured to be fixedly coupled with the insulating rod such that with respect to an assembled state of the system with insulating rod and with respect to a longitudinal axis the length of the insulating rod is adjustable due to rotation of the clutch relative to the fitting.
Claims10
A system for adjusting a length of an insulating rod of a high voltage circuit breaker, comprising:
- a clutch that is configured to couple the insulating rod with a lever of the high voltage circuit breaker to transmit an acting movement causing separation of electrical contacts of the high voltage circuit breaker, wherein the clutch includes a thread with a given thread pitch,
- a fitting that includes a thread with a given thread pitch formed in coordination with the thread of the clutch, wherein the fitting is adjustably coupled with the clutch by means of the threads and the fitting is configured to be fixedly coupled with the insulating rod such that with respect to an assembled state of the system with the insulating rod and with respect to a longitudinal axis the length of the insulating rod is adjustable due to rotation of the clutch relative to the fitting, and
- a securing member that is coupled with the clutch configured to counteract an unwanted rotation of the clutch relative to the fitting, wherein the fitting and the clutch each comprises a respective securing opening and wherein the securing member is formed as a locking pin which extends into the securing openings of the fitting and the clutch.
A method of adjusting a length of an insulating rod of a high voltage circuit breaker, comprising:
- providing a clutch that is configured to couple the insulating rod with a lever of the high voltage circuit breaker to transmit an acting movement causing separation of electrical contacts of the high voltage circuit breaker, wherein the clutch includes a thread with a given thread pitch, wherein the clutch comprises a securing opening,
- providing a fitting that includes a thread formed in coordination with the thread of the clutch, wherein the fitting comprises a securing opening,
- coupling the fitting with the clutch such that the clutch is adjustably coupled with the fitting by means of the thread of the clutch and the thread of the fitting,
- coupling the fitting fixedly with the insulating rod,
- rotating the clutch relative to the fitting with respect to a longitudinal axis and thereby adjusting the length of the insulating rod,
- providing a securing member formed as a locking pin, and
- inserting the locking pin into the securing opening of the fitting and the securing opening of the clutch and thereby fixing the clutch relative to the fitting with respect to a rotation around the longitudinal axis.
Dependencies are inferred from the claim text.