Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1983-07-26
1985-11-26
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200145, 200148B, H01H 3316
Patent
active
045556032
ABSTRACT:
A grounding switch which includes a resistance contact unit and a short circuiting contact unit accommodated in a single sheath or casing. A movable contact of the short circuiting contact unit is connected to a movable contact of the resistance contact unit and a fixed contact of the short circuiting contact unit is grounded. A resistor is connected between the movable contact of the resistance contact unit and fixed contact of the short circuiting contact and is temporarily inserted into a main power circuit when the resistance contact unit is closed. The resistance contact unit and resistor are arranged on parallel axes in the same sheath.
Hitachi , Ltd.
Macon Robert S.
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