Present position reviewed and it is concluded that little is known about heavy duty contacts; ERA is equipping special laboratory where continuous 3-phase power up to 600 amp at 440-v, and much larger short period powers, are available. 10s6d.
Heavy-duty contactor contacts -- Present knowledge and need for research
Brit Elec Allied Industries Research Assn -- Tech Report
1953
17 pages
Report
English
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