Transformer Research and Development Report. No.135. Buchholz Relay. (Testing of The Surge Testing Pump made by Mr. J.F. Dunn of Messrs. Kennedy & Donkin and modified by Messrs. Ferranti Limited). 1955.

Made:
1955
maker:
Ferranti Ltd

Details

Extent:
1
Identifier:
YA1996.10/9/1/4/2/61
Subject:
Electrical Industry, Transformer