Abstract: A current transformer test method implemented using a test device, is useful to verify proper CT installation and operation, and does not rely on the generator (or other system) to be in a state of relatively high assembly. The test device allows a current transformer to be tested by supplying an alternating current (AC) signal to a primary winding of the current transformer to thereby induce an AC signal in a secondary winding of the current transformer. The test device is used to simultaneously monitor the phases of the supplied AC signal and the induced AC signal so that a determination can be made as to whether the current transformer secondary winding is properly installed relative to the current transformer primary winding, and to simultaneously monitor the current magnitudes of the supplied AC signal and the induced AC signal so that the turns ratio of the current transformer can be determined.

Abstract: A current transformer test device and a method implemented using the test device, is useful to verify proper CT installation and operation, and does not rely on the generator (or other system) to be in a state of relatively high assembly. The test device allows a current transformer to be tested by supplying an alternating current (AC) signal to a primary winding of the current transformer to thereby induce an AC signal in a secondary winding of the current transformer. The test device is used to simultaneously monitor the phases of the supplied AC signal and the induced AC signal so that a determination can be made as to whether the current transformer secondary winding is properly installed relative to the current transformer primary winding, and to simultaneously monitor the current magnitudes of the supplied AC signal and the induced AC signal so that the turns ratio of the current transformer can be determined.

Abstract: A test apparatus assembly is provided for testing an AC generator having an exciter rotor mounted to a shaft. The apparatus includes an annular end bell, a carbon brush assembly coupled to the end bell including a housing coupled to the end bell inner peripheral surface, at least a conduit formed in the housing, and a spring-loaded carbon brush disposed in the conduit, and a slip ring assembly configured to be mounted to the shaft and to at least partially contact the carbon brush that includes a hub configured to couple to the shaft, the hub including an outer peripheral surface and a cavity extending therethrough, a first slip ring coupled to the hub outer peripheral surface, and a wire connector coupled to the first slip ring and extending through the hub cavity, the wire connector configured to electrically couple the first slip ring to the exciter rotor.

Abstract: An assembly is provided for testing a circuit of a rotor of an AC generator. The assembly includes a base, a rack, a coil housing, one or more coils, and a rotor stand. The rack is coupled to the base and the coil housing is coupled to the rack. The one or more coils are disposed within the coil housing and are adapted to receive electrical power and configured, in response to receiving the power, to generate a magnetic field. The rotor stand is coupled to the base and configured to mount the rotor therein to position the rotor proximate the coil housing.

Abstract: An electrical test box is provided for selectively connecting a generator to one of a plurality of test devices where the generator has a plurality of circuits. The electrical test box includes an input connector that is adapted to electrically couple to one or more of the circuits. The box also includes one or more pair of test jacks and a circuit select switch and a test select switch. The circuit select switch has a plurality of input contacts and an output contact. The contacts are electrically coupled to the input connector and configured to selectively electrically couple the circuit select switch output contact to a generator circuit. The test select switch is electrically coupled between the circuit select switch output contact and at least one of the test jacks and is configured to selectively couple the circuit select switch output contact to one test jack of the test jack pair.

Abstract: The problem of preventing breakage of the terminating connections of electrical wires (32) is solved by a strain relief device (12) adapted for use with an electrical connector (10) for terminating a multi-wire electrical cable (18). The strain relief device includes a pair of shell members (34) adapted for assembly to a terminating end of the electrical connector and for embracing the electrical cable. A first groove (36) is formed about the outside of the shell members when in assembly. A locking ring (38) is positionable in the first groove to hold the shell members in assembly on the electrical connector. A second groove (40) is formed on the inside of the assembled shell members. A clam;ing ring (42) is positionable in the second groove for clamping about the electrical cable when the shell members are held in assembly by the locking ring.

Abstract: To eliminate difficulties in making a large number of external connections from solid wire windings in a dynamoelectric machine, a unique terminal block (54) is disposed within the machine housing 10. The machine includes a stator having a body (12) of magnetizable material and a plurality of groups of windings (14, 44, 46, 48), each winding being of solid wire. A rotor (18) is mounted for rotation relative to the stator and the housing (10) contains both the rotor (18) and the stator (12,14). A plurality of multi-terminal connectors (34) are mounted on the housing (10) and accessible from the exterior thereof and an elongated terminal block (54) is disposed within the housing (10) and is comprised of a stack of flat insulators (60-68) sandwiching electrically isolated bus bars 74 between adjacent ones of the insulators. Each bus bar (74) is associated with a winding group (44, 46, 48).