US 12,170,178 B2
Dual conductor Thomson coil for faster opening of a hybrid circuit breaker
Asish Das, Kendrapara (IN); Santhosh Kumar Chamarajanagar Govinda Nayaka, Moon Township, PA (US); Robert Michael Slepian, Murrysville, PA (US); and Xin Zhou, Wexford, PA (US)
Assigned to EATON INTELLIGENT POWER LIMITED, Dublin (IE)
Filed by EATON INTELLIGENT POWER LIMITED, Dublin (IE)
Filed on Oct. 28, 2022, as Appl. No. 17/975,751.
Prior Publication US 2024/0145186 A1, May 2, 2024
Int. Cl. H01H 3/54 (2006.01); H01F 7/06 (2006.01); H01H 3/22 (2006.01); H01H 33/28 (2006.01)
CPC H01H 3/222 (2013.01) [H01F 7/06 (2013.01); H01H 3/54 (2013.01); H01H 33/285 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An actuator for use with a circuit interrupter, the actuator comprising:
a conductive plate structured to be coupled to a drive assembly of the circuit interrupter;
a conductive coil, the coil comprising:
a plurality of turns;
a first conductor wound into a first number of turns;
a second conductor wound into a second number of turns;
a first power source electrically connected to the first conductor;
a second power source electrically connected to the second conductor; and
an opening structured to receive the drive assembly and to enable the drive assembly to move freely during an opening stroke,
wherein the plurality of turns is the sum of the first number of turns and the second number of turns,
wherein the first conductor and the second conductor are nested such that the first number of turns forms alternating turns of the coil relative to the second number of turns,
wherein the first power source and the second power source are configured to simultaneously supply a first time-varying current signal and a second time-varying current signal, respectively, to the first conductor and the second conductor, and
wherein the actuator is structured to cause the coil to repel the conductive plate when the first and second time-varying current signals are supplied to the first and second conductors.