Title:
INSTANTANEOUS TRIP DEVICE OF CIRCUIT BREAKER
Document Type and Number:
Japanese Patent JP2017041363
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an instantaneous trip device of a circuit breaker capable of instantaneous interruption even in a circuit breaker having a small rated current.SOLUTION: The instantaneous trip device of circuit breaker comprises a fixed yoke 2, an electrical path disposed inside the electrical path, and a movable yoke 3 disposed adjacent to the fixed yoke 2. A magnetic member 9 is arranged between at least one of the electric path and the fixed yoke, or between the electric path and the movable yoke. The magnetic member 9 increases the magnetic flux density and ensures instantaneous trip operation even in a circuit breaker having a small rated current.SELECTED DRAWING: Figure 4
Inventors:
KATAOKA KENJI
YASUMURA NAOKI
YASUMURA NAOKI
Application Number:
JP2015162433A
Publication Date:
February 23, 2017
Filing Date:
August 20, 2015
Export Citation:
Assignee:
NITTO KOGYO KK
International Classes:
H01H73/36; H01H73/48
Attorney, Agent or Firm:
Patent Business Corporation Najima Patent Office
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