Title:
VACUUM DETERIORATION DETECTING DEVICE FOR VACUUM BREAKER
Document Type and Number:
Japanese Patent JPS527783
Kind Code:
A
Abstract:
PURPOSE: To find out the deterioration of the vacuum condition by detecting the rising temperature of electrodes transferred to the metal shield arranged around the electrodes.
Inventors:
KANOU YASUNOBU
Application Number:
JP8340875A
Publication Date:
January 21, 1977
Filing Date:
July 09, 1975
Export Citation:
Assignee:
HITACHI LTD
International Classes:
G01L21/00; H01H35/32; H01H33/66; (IPC1-7): G01L21/00; H01H35/24