Patent ID: 6686547
Filing Date: 2004-02-03
Classification: H02J,Y02B,Y04S

Abstract:
A relay for a transfer mechanism for transferring the supply of electrical power to a load between a generator which generates power when started and a utility source, the transfer mechanism monitoring the power supplied by the utility source and starting the generator in response to a power outage from the utility source, the relay comprising:a utility input connectable to the utility source, the utility input including a utility stationary contact having: a backing portion operatively connected to a utility terminal and formed from a first material; and a contacting portion deposited on the backing portion and formed from a second material; a generator input connectable to the generator, the generator input including a generator stationary contact having: a backing portion operatively connected to a generator terminal and formed from the first material; and a contacting portion deposited on the backing portion and formed from the second material; an output terminal connectable to a load; a movable arm having a first end operatively connected to the output terminal and a second opposite end; a movable contact connected to the second end of the movable arm; and a coil connectable to the generator and being operatively connected to the movable arm such that the movable arm is movable between a first contacting position wherein the movable contact engages the contacting portion of the utility stationary contact and a second non-contacting position wherein the movable contact is disengaged from the contacting portion of the utility stationary contact in response to the application of power to the coil by the generator.