FIELD: electrical engineering. SUBSTANCE: actuating mechanism of electric interrupter with single-pole and zero contacts has extension spring positioned between zero and phase contact supports and suspended between driving plate projection and transverse needle of rocking level. This promotes balancing of contact pressure forces irrespective of wear and allowances established by manufacturer. EFFECT: more reliable interruption of circuit. 7 cl, 7 dwg
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Authors
Dates
1997-11-20—Published
1993-03-30—Filed