Title:
TEMPERATURE MEASURING DEVICE FOR TRANSFORMER COIL
Document Type and Number:
Japanese Patent JP04315407
Kind Code:
A
Abstract:
PURPOSE: To offer a temperature measuring device of a transformer coil always able to correctly measure and display the coil temperature without being affected in any way by a current flowing through the coil and voltage impressed on the coil.
CONSTITUTION: A temperature measuring device of a transformer coil is characterized by that a pressure sensor 10 is interposed between an insulator 3 holding down a coil 2 and the coil clamping metal fittings 4 clamping the coil 2 through this insulator 3 and the pressure sensor 10 measures the temperature of the coil 2 according to the impressed pressure by means of the coil 2 expanding and contracting basing on a temperature change.
Inventors:
Takahashi, Hideshige
Application Number:
JP1991000108748
Publication Date:
November 06, 1992
Filing Date:
April 12, 1991
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H01F27/00; H01F27/30; H01F27/00; H01F27/30; (IPC1-7): H01F27/00; H01F27/30