Electric switch arrangement for use as a current supply switchin

Details Electric switch arrangement for use as a current supply switchin Electric switch arrangement for use as a current supply switchin

1977-05-24

1979-01-09

Schaefer, Robert K.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

340644, 361190, H01H 8300

Patent

active

041340256

ABSTRACT:
An electric switch arrangement for use as a current supply switching means for a bipolar electric load is disclosed, comprising two switches connected in series with each other and with the load and located on opposite sides of the load. A monitoring equipment is provided for supervising the operation and function of said switches. Said monitoring equipment comprises potential generating means which are arranged, when both said switches are open, to generate at each pole of the load a potential deviating from the potential existing at said pole when anyone of said switches is closed or both said switches are closed, and sensing means which are arranged to sense the potential of at least one of the poles of the load.

REFERENCES:
patent: 3195018 (1965-07-01), Giger

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