Title:
INSULATION DIAGNOSING DEVICE FOR REFRIGERATOR UNIT
Document Type and Number:
Japanese Patent JPH06123530
Kind Code:
A
Abstract:
PURPOSE: To prevent a refrigeration unit from abruptly stopping due to the reduced insulation resistance of electric appliances thereof.
CONSTITUTION: This device is provided with a storage means 52 for storing at least a specified number of measurement results of insulation resistance, a judging means 51 for judging the insulation resistance abnormal when the comparison of a measurement result with a certain number of preceding measurement results shows a decreasing trend of the insulation resistance and the measurement result is not higher than a specified value, and an indicator means 54 for giving an abnormality indication when the judgment of abnormality is made.
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Inventors:
OGAWA HIROSHI
Application Number:
JP29397692A
Publication Date:
May 06, 1994
Filing Date:
October 08, 1992
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F25B49/02; (IPC1-7): F25B49/02
Attorney, Agent or Firm:
Toru Suganuma (2 outside)
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