US 12,266,916 B2
Apparatus and method for use in a power delivery system
Kamalaraj Kannan, Blackwood (GB); Gabor Gulics, Newport (GB); Lyn Jones, Ebbw Vale (GB); Giles Barnwell, Nottingham (GB); Daniel David McClymont, Newbold Verdon (GB); Alejandro Santana Armas, Cardiff (GB); Valentin Gruffaz, Cardiff (GB); and Milica Dekic, Cardiff (GB)
Assigned to HAWKER SIDDELEY SWITCHGEAR LIMITED, Leicestershire (GB)
Appl. No. 18/039,099
Filed by HAWKER SIDDELEY SWITCHGEAR LIMITED, Loughborough (GB)
PCT Filed Nov. 17, 2021, PCT No. PCT/GB2021/052977
§ 371(c)(1), (2) Date May 26, 2023,
PCT Pub. No. WO2022/112742, PCT Pub. Date Jun. 2, 2022.
Claims priority of application No. 2018623 (GB), filed on Nov. 26, 2020.
Prior Publication US 2024/0106224 A1, Mar. 28, 2024
Int. Cl. H02H 3/087 (2006.01); H01H 9/26 (2006.01); H01H 9/32 (2006.01); H01H 33/38 (2006.01); H01H 33/52 (2006.01); H01H 33/59 (2006.01); B60M 3/04 (2006.01)
CPC H02H 3/087 (2013.01) [H01H 9/26 (2013.01); H01H 9/32 (2013.01); H01H 33/38 (2013.01); H01H 33/52 (2013.01); H01H 33/596 (2013.01); B60M 3/04 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An apparatus for use in a power delivery system, the apparatus comprising: a DC circuit breaker having first and second terminals and configured to automatically switch from a closed state to an open state during an overcurrent condition;
a disconnector switch in series with the DC circuit breaker, the disconnector switch having a first terminal for connecting to a first polarity terminal of a DC power supply, a second terminal for connecting to a second polarity terminal of the DC power supply and a common terminal connected to the first terminal of the DC circuit breaker, the disconnector switch having at least a first position in which the first terminal is connected to the common terminal and a second position in which the second terminal is connected to the common terminal; and
an interlock mechanism coupled to the DC circuit breaker and the disconnector switch, the interlock mechanism configured to disable the DC circuit breaker from automatically switching from the closed state to the open state during the overcurrent condition when the disconnector switch is in the second position.