Title:
METHOD AND DEVICE OF DISPLAYING ELECTRIC CAPACITY OF CIRCUIT BREAKER
Document Type and Number:
Japanese Patent JP3232861
Kind Code:
B2
Abstract:
PURPOSE: To provide a display device that can be used in common even when the rated current of a main circuit differs by detecting the first converter output current for activating the overcurrent relay of a circuit breaker by a second converter, and whereby displaying the detection result.
CONSTITUTION: A first converter 4A is interposed on a main circuit 2A, and the overcurrent relay 5 of a circuit breaker 1 is activated through the converter 4A. The output current of the converter 4A is detected by the second converter 70 of a current display device 60, and is displayed by a display part 90 through a converter 9. In this structure, the display device of a circuit breaker that can be used in common even when the rated current of the main circuit differs, is thus provided.
Inventors:
Kazuo Sakurai
Tadao Kitamura
Toshio Kobayashi
Hiroshi Ishikawa
Tadao Kitamura
Toshio Kobayashi
Hiroshi Ishikawa
Application Number:
JP4347194A
Publication Date:
November 26, 2001
Filing Date:
March 15, 1994
Export Citation:
Assignee:
Fuji Electric Co., Ltd.
International Classes:
H01H33/00; H01H33/59; H01H73/12; (IPC1-7): H01H33/00; H01H33/59; H01H73/12
Domestic Patent References:
| JP3123274U |
Attorney, Agent or Firm:
Masaharu Shinobe
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