Title:
CIRCUIT BREAKER, POWER DISTRIBUTION BOARD, AND DRIVING METHOD FOR CIRCUIT BREAKER
Document Type and Number:
Japanese Patent JP2020080235
Kind Code:
A
Abstract:
To attain simplification of configuration.SOLUTION: A circuit breaker 20 comprises a zero-phase-sequence current transformer ZCT1, a removal part, and a drive part 5. The zero-phase-sequence current transformer ZCT1 outputs an operation signal S1 from a secondary coil in a case where a current passing a primary coil is unbalanced. The primary coil includes a trunk 90 connecting a power source with a load, and an auxiliary wire other than the trunk 90. The removal part performs removing operation for shifting a contact C1 which is electrically connected to the trunk 90, from a closed state to an open state in response to the operation signal. The drive part 5 unbalances the current passing the primary coil by making a current flow to the auxiliary wire in response to an instruction signal from the outside.SELECTED DRAWING: Figure 1
Inventors:
SHIOKAWA AKEMI
NAKAMINAMI YOSHIHIRO
MIZUNO YOJI
TAKAYAMA SHINJI
NAKAMINAMI YOSHIHIRO
MIZUNO YOJI
TAKAYAMA SHINJI
Application Number:
JP2018212529A
Publication Date:
May 28, 2020
Filing Date:
November 12, 2018
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
H01H83/02; H02B1/42
Attorney, Agent or Firm:
Patent business corporation Hokuto patent office