Cummins Power Generation Ip, Inc.

Dongyan Chu

Xuefeng Ji

Tongxian Hu

Yong Wang

Fangwei Zheng

Dejun Cheng

Yuxiang Wei

A transmission subsystem has an automatic transfer switch () which includes at least a pair of movable contact members (). The pair of movable contact members includes a first movable contact member () at a first location and a second movable contact member () at a second location. The automatic transfer switch further includes a fixed member (), a controller () configured to select one of the first and second movable contact members, and a permanent magnetic actuator (). The permanent magnetic actuator includes an actuator body, a first driving rod (), and a second driving rod (). The permanent magnet actuator is configured to move the first driving rod in a first direction independently of movement of the second driving rod. The first driving rod is configured to move the first movable contact member, and the second driving rod is configured to move the second movable contact member.

Automatic transfer switch and drive subsystem

An automatic transfer switch system includes a contact subsystem having a plurality of movable contact members, including at least one first movable contact member and at least one second movable contact member at first and second locations, respectively, and at least one fixed contact member. The switch system further includes a permanent magnet operating mechanism that controls opening and closing of the movable contact members relative to the fixed contact member, generates a holding force to maintain a state of the at least one first movable contact member at the first location and a state of the at least one second movable contact member at the second location, and connects to the subsystem via a linkage, and a solenoid permitting movement of the at least one first movable contact member and the at least one second movable contact member at the first and second locations, respectively.

Permanent magnet operating mechanism for use in automatic transfer switch

A transfer switch transfers electric power provided to an electrical load from a first power source to a second power source. The transfer switch includes a coil arrangement that controls movement of a member to open or close a contactor of the first or second power source. The coil arrangement may be used with two voltage levels.

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Shanghai, China

Dongyan Chu