General Electric Company

Kadaba Venkatarangan Sridhar

Janakiraman Narayanan

Mahesh Jaywant Rane

David J Lesslie

Dennis C Zuffelato

Anilkumar Dinker Pandit

Anilkumar D Pandit

Thuong Phung

Joseph P Smith

Sujit Kumar Piri

Natarajan Mani

Biranchi Narayan Sahu

Ramadevi Agali

Chakrapani Shankar Ganesh

An electronic circuit for use on a contactor is disclosed. The electronic circuit may be encased in a housing and mounted to a coil cover on the front of a contactor for applying control power to the coil for a selected time period to enable the contactor to change its state and be held in the changed state. Thereafter, the electronic circuit disconnects the supply to the coil thereby preventing coil burn out. The control power is only applied after initiation of an input signal from a switch and after a controller in the electronic circuit has slept for a first predetermined period of time so as not to register any bounce from the input signal. The electronic circuit may include an auxiliary contact status check for providing error free activation of the mechanically held contactor when changing state of the contactor. A contactor employing the electronic circuit of the present invention and a method of using the electronic circuit on a contactor are further disclosed.

Electronic actuation for mechanically held contactors

An energy storage mechanism for a circuit breaker motor operator is disclosed. The energy storage mechanism has a first elastic member; a first fixture having a plurality of slots therein, the first fixture positioned in the first elastic member; a second fixture having a plurality of members defining an aperture; a second elastic member engaged to the second fixture and positioned within the aperture; wherein the second fixture is engaged to the first fixture. A motor operator for a molded case circuit breaker is disclosed. The motor operator has an energy storage mechanism for assuming a plurality of states, each state having a prescribed amount of energy stored in the energy storage mechanism; a mechanical linkage system coupled to the energy storage mechanism and to the molded case circuit breaker; wherein the molded case circuit breaker is operative to assume a plurality of positions; wherein each position of the molded case circuit breaker is associated with a corresponding state of the energy storage mechanism; a motor drive assembly connected to the mechanical linkage system for driving the energy storage mechanism from a first state of the plurality of states to a second state of the plurality of states; and an energy release mechanism coupled to the mechanical linkage system for releasing the energy stored in the energy storage mechanism wherein the energy storage mechanism returns from the second state of the plurality of states to the first state of the plurality of states.

Adjustable energy storage mechanism for a circuit breaker motor operator

Growing community of inventors

Bengaluru, India

Kadaba Venkatarangan Sridhar