Title:
ＤＣ回路遮断器及び断路器
Document Type and Number:
Japanese Patent JP6688804
Kind Code:
B2
Abstract:
A circuit breaker/disconnector apparatus for use in a power delivery system comprises a unidirectional DC circuit breaker which has a first terminal and a second terminal and is configured to automatically open during an overcurrent condition in a forward direction and to remain closed independent of current level in a reverse direction. A disconnector switch is in series with the circuit breaker. The disconnector switch has a first terminal for connecting to a first polarity connector of a power supply, a second terminal for connecting to a second polarity connector of the power supply and a common terminal connected to the first terminal of the circuit breaker. The disconnector switch has 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. The second polarity connector of the power supply may be coupled to a track of a transport system and the second polarity connector of the power supply may be coupled to a live overhead cable or live third rail of a transport system. The apparatus can be used to safely ground the live cable or third rail when in a maintenance condition.
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| JP2002042614 | CURRENT SWITCH |
Inventors:
Stephen Ernest Lane
Application Number:
JP2017542359A
Publication Date:
April 28, 2020
Filing Date:
November 03, 2015
Export Citation:
Assignee:
Hawker Siddeley Switchgear Limited
International Classes:
H01H31/28; B60M3/00; H01H31/02; H01H33/52; H01H33/59; H02H3/00
Domestic Patent References:
| JP61122043A | ||||
| JP2005190671A | ||||
| JP8205377A |
Attorney, Agent or Firm:
Yasuhiko Murayama
Shinya Mitsuhiro
Tatsuhiko Abe
Shinya Mitsuhiro
Tatsuhiko Abe