Overcurrent trip unit with indication of dependency of trip func

Details Overcurrent trip unit with indication of dependency of trip func Overcurrent trip unit with indication of dependency of trip func

1993-07-15

1994-11-22

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361 96, 361 97, H02H 304

Patent

active

053674278

ABSTRACT:
A graphical representation of the current/time trip characteristic displayed on the operator's panel of an electronic trip unit for a circuit interrupter, has different indicia, such as different colors, identifying the representation of independent trip functions from those of dependent trip functions, thereby making the operator aware that adjustment of one of the dependent trip functions will also affect an adjustment of the other dependent portions of the current/time trip characteristic.

REFERENCES:
patent: 4752853 (1988-06-01), Matsko et al.

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