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Title:
CURRENT TRANSFORMER AND CIRCUIT BREAKER
Document Type and Number:
Japanese Patent JP2018056420
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a current transformer, converting a primary current running through a primary conductor into a secondary current, capable of achieving an output increase of a secondary current and a configuration in space saving because when a main circuit current (a primary current) is small, only penetrating a main circuit conductor through a current transformer generates an insufficient output of a secondary current and tripping operation of a circuit breaker is difficult to perform.SOLUTION: The current transformer includes: a primary conductor; a center core type iron core; and a secondary winding wound around the iron core. The primary conductor is structured to be a spiral shape and wound around the iron core by a plurality of turns.SELECTED DRAWING: Figure 2

Inventors:
SUZUKI KENTA
NAKAMURA DAISUKE
Application Number:
JP2016192548A
Publication Date:
April 05, 2018
Filing Date:
September 30, 2016
Export Citation:
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Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD
International Classes:
H01F38/30; H01H73/02
Attorney, Agent or Firm:
Yuji Toda