Patent ID: 7119548

Claim:
A current transformer test device for testing a plurality of current transformers each having at least a primary winding and a secondary winding, the test device comprising: an alternating current (AC) power source configured to supply an AC signal having at least a current magnitude; an AC current meter configured to measure and display the supplied AC signal current magnitude; a current transformer primary winding select switch movable to one of a plurality of switch positions, each switch position corresponding to one of the plurality of current transformer primary windings; a current transformer primary winding test jack coupled to receive the AC signal from the AC power source, the current transformer primary test jack configured to be releasably coupled to each of the current transformer primary windings and, upon being coupled thereto, to supply the AC signal to the current transformer primary winding that corresponds with the switch position of the current transformer select switch; and a current transformer secondary winding test jack configured to be releasably coupled to each of the current transformer secondary windings and, upon being coupled thereto, to receive a current transformer test signal from one of the current transformer secondary windings when its associated current transformer primary winding is supplied with the AC signal.