Overcurrent automatic prevention apparatus having an individual

Details Overcurrent automatic prevention apparatus having an individual Overcurrent automatic prevention apparatus having an individual

1996-02-21

1997-12-02

Leja, Ronald W.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

340650, H02H 904

Patent

active

056942850

ABSTRACT:
An improved overcurrent automatic prevention apparatus having an individual fault display and permanent ground functions capable of automatically detecting whether overcurrent flows to a switch, which occurs due to a short of communication cables and properly limiting the overcurrent flow thereto, and when overcurrent exceeding a threshold value continuously flows thereto, permanently blocking a cable line and a ground side so as to prevent characteristic changes of a current limiting device and system breakage, and when it is possible to individually display fault states in order to easily check the system by providing an individual fault display device, visually checking a switch, and preventing possible faults in the system, thus increasing the efficiency of the operation, management and maintenance of the communication system, which includes a melting insulation material deposited on the upper surface of an input terminal of the semiconductor; a ground-side spring contact point disposed on the melting insulation material and connected to the ground; and a fault display lamp-side spring contact point disposed on the melting insulation material and connected to a fault display lamp receiving power.

REFERENCES:
patent: 5424901 (1995-06-01), Frederiksen et al.

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