Motor protection circuit unit

Details Motor protection circuit unit Motor protection circuit unit

1975-12-19

1977-06-07

Miller, J D

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

318473, 361 27, H02H 708

Patent

active

040287360

ABSTRACT:
A motor protection circuit has a current sensing means connected in series with a contactor winding energization circuit for sensing current flow to initiate operation of a delay after break circuit or to maintain an oil pressure protection circuit unoperated.

REFERENCES:
patent: 3404313 (1968-10-01), Happel et al.
patent: 3487265 (1969-12-01), Aaland
patent: 3609461 (1971-09-01), Obenhaus et al.
patent: 3619668 (1971-11-01), Pinckaers
patent: 3660718 (1972-05-01), Pinckaers
patent: 3721866 (1973-03-01), McIntosh
patent: 3721880 (1973-03-01), Neill
patent: 3731148 (1973-05-01), Fournis
patent: 3742302 (1973-06-01), Neill
patent: 3753043 (1973-08-01), Plouffe
patent: 3774082 (1973-11-01), Chang

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