Typical Transformer Faults and Gas Detector Relay Protection

1 January 1947

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in Transactions of the American Institute of Electrical Engineers

Vol. 66 (1) , 1052-1060
https://doi.org/10.1109/T-AIEE.1947.5059543

Abstract

This paper describes a number of typical faults which have been experienced in large transformers oil the Saguenay system. Cases are noted where gas detector relay protection would have obvious advantages. Some conclusions are noted regarding the value of this type of protection, based on faults selected from operating experience with 124 transformers over a period of about 26,200,000 kilovolt-ampere-years. Illustrations of incipient faults which have been detected by gas relays are included.

Keywords

GAS DETECTORS
PROTECTIVE RELAYING
OIL INSULATION
POWER TRANSFORMER INSULATION
LOW VOLTAGE
PETROLEUM
POWER SYSTEM RELAYING
CIRCUIT FAULTS
DUCTS
COILS

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