US 12,033,818 B2
Circuit breaker having internal transient recovery voltage capacitor assembly
Sushil A. Shinde, Monroeville, PA (US); Carl R. Kurinko, North Huntingdon, PA (US); Matthew D. Cuppett, Uniontown, PA (US); Paul Jason Vladuchick, Cranberry Township, PA (US); Christian Daehler, Greensburg, PA (US); and Thomas E. Hoburn, Mount Pleasant, PA (US)
Assigned to HITACHI ENERGY LTD, Zürich (CH)
Appl. No. 17/419,153
Filed by HITACHI ENERGY LTD, Zürich (CH)
PCT Filed Dec. 18, 2019, PCT No. PCT/US2019/067195
§ 371(c)(1), (2) Date Jun. 28, 2021,
PCT Pub. No. WO2020/142215, PCT Pub. Date Jul. 9, 2020.
Claims priority of provisional application 62/786,692, filed on Dec. 31, 2018.
Prior Publication US 2022/0108853 A1, Apr. 7, 2022
Int. Cl. H01H 9/30 (2006.01); H01H 33/16 (2006.01)
CPC H01H 33/165 (2013.01) [H01H 9/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A circuit breaker comprising:
an enclosure having an inner region;
a contact housed within the inner region of the enclosure, a first side of the contact electrically coupled to a first electrical conductor of the circuit breaker, a second side of the contact electrically coupled to a second electrical conductor of the circuit breaker; and
a plurality of capacitor assemblies housed within the inner region of the enclosure, wherein each of the capacitor assemblies is connected in parallel across the contact via a respective individual pair of mounting brackets, and includes a single insulator tube that houses a single transient recovery voltage capacitor such that the transient recovery voltage capacitor is separated from the inner region of the enclosure.