Title:
【発明の名称】回路遮断器
Document Type and Number:
Japanese Patent JP2941393
Kind Code:
B2
Abstract:
The circuit breaker comprises a thermistor located in a cold zone, near the front face of the trip device and at least one thermistor located in a hot zone, at the bottom of the circuit breaker case, in proximity to the circuit breaker connection terminals. The temperature difference measured between the hot and cold zones is representative of the temperature rise of the system protected by the circuit breaker and is used to modify the time delay of a delayed tripping function when the circuit breaker closes. The trip device can also take into account the temperature difference existing at the time of the previous trip.
Inventors:
HOORU TORIHODEI
Application Number:
JP24227990A
Publication Date:
August 25, 1999
Filing Date:
September 12, 1990
Export Citation:
Assignee:
MERURAN JERAN
International Classes:
G01R19/15; H01H33/59; H02H3/093; H02H5/04; H02H6/00; (IPC1-7): H01H33/59; H02H5/04; H02H6/00
Domestic Patent References:
| JP607025A | ||||
| JP59215619A | ||||
| JP63274321A |
Attorney, Agent or Firm:
Kazuo Sato (3 others)
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