High-voltage circuit breaker system

Patent metadata

Field	Value
Publication number	US-12014890-B2
Application number	US-202017599675-A
Country	US
Kind code	B2
Filing date	Feb 17, 2020
Priority date	Mar 29, 2019
Publication date	Jun 18, 2024
Grant date	Jun 18, 2024

Abstract

A high-voltage circuit breaker system has a rapid disconnection function that results in an opening, closing, and reopening movement of a contact system. A circuit breaker having the contact system and a drive system that is mechanically connected to the contact system. The drive system includes a drive unit and, in addition to the drive unit, a drive shaft that is designed as a crankshaft. The crankshaft is connected to a mobile contact of the contact system via a push rod, and the cycle of opening, closing, and reopening movement of the contact system results from a unidirectional rotational movement of the crankshaft.

First claim

The invention claimed is:

1. A high-voltage circuit breaker system having a quick disconnection function, the circuit breaker system comprising:
a circuit breaker having a contact system and a drive system mechanically connected to said contact system;
said drive system including a drive assembly and a drive shaft being a rotatably mounted crankshaft;
said crankshaft having at least three cranks, with a second crank of said crankshaft being deflected rotationally in a different direction from a first crank of said crankshaft;
a push rod connecting each crank of said crankshaft to a movable contact of said contact system;
said crankshaft and said push rod being configured to perform the quick disconnection function with a cycle of an opening movement, a closing movement, and a reopening movement of said contact system caused by a unidirectional rotational movement of said crankshaft; and
said crankshaft having an axis of rotation and said crankshaft being configured to carry out the unidirectional rotational movement with respect to said axis of rotation of between 150° and 210° from a closed position of said contact system to an open position of said contact system.

2. The high-voltage circuit breaker system according to claim 1 , wherein said crankshaft is configured to carry out the rotation about said axis of rotation of between 350° and 360° plus 10° for the opening movement and closing movement of said contact system.

3. The high-voltage circuit breaker system according to claim 1 , wherein said crankshaft includes a crank pin at a crank thereof which is eccentric with respect to an axis of rotation of said crankshaft and which, during the rotational movement of said crankshaft, describes a circular movement about said axis of rotation.

4. The high-voltage circuit breaker system according to claim 3 , wherein said crank pin is oriented parallel to said axis of rotation.

5. The high-voltage circuit breaker system according to claim 4 , wherein said push rod includes a plain bearing disposed to surround said crank pin.

6. A high-voltage circuit breaker system having a quick disconnection function, the circuit breaker system comprising:
a circuit breaker having a contact system and a drive system mechanically connected to said contact system;
said drive system including a drive assembly and a drive shaft being a rotatably mounted crankshaft;
said crankshaft having at least three cranks, with a second crank of said crankshaft being deflected rotationally in a different direction from a first crank of said crankshaft;
a push rod connecting each crank of said crankshaft to a movable contact of said contact system;
said crankshaft and said push rod being configured to perform the quick disconnection function with a cycle of an opening movement, a closing movement, and a reopening movement of said contact system caused by a unidirectional rotational movement of said crankshaft; and
said crankshaft having an axis of rotation and said crankshaft being configured to carry out the rotation about said axis of rotation of between 350° and 360° plus 10° for the opening movement and the closing movement of said contact system.

Assignees

• Siemens Energy Global Gmbh & Co Kg

Inventors

• Nikolic Paul Gregor

Classifications

• H01H3/32

  Driving mechanisms, i.e. for transmitting driving force to the contacts (snap-action arrangements H01H5/00; introducing a predetermined time delay H01H7/00) · CPC title

• H01H2003/3094

  allowing an opening - closing - opening [OCO] sequence · CPC title

• H01H3/46

  using rod or lever linkage, e.g. toggle · CPC title

• H01H3/42

  using cam or eccentric · CPC title

• H01H33/28

  Power arrangements internal to the switch for operating the driving mechanism · CPC title