Electrical apparatus, in particular a surge arrester, having an

Details Electrical apparatus, in particular a surge arrester, having an Electrical apparatus, in particular a surge arrester, having an

1998-11-06

2000-08-15

Sherry, Michael J.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361 936, 340653, 340664, H02H 322

Patent

active

06104590&

ABSTRACT:
The electrical apparatus, which is preferably designed as a surge arrester (3), has an apparatus, which contains a current sensor, for indicating a fault state caused by a fault current (I). The indicating apparatus furthermore contains a receiver (read station 9), which can be operated from ground potential, for electromagnetic waves as well as an information carrier (8) which interacts with the current sensor and emits electromagnetic waves to the receiver (9). In such an apparatus, the fault state can be identified independently of optical signals.

REFERENCES:
patent: 5237482 (1993-08-01), Osterhout et al.
patent: 5325087 (1994-06-01), Mikli
patent: 5341271 (1994-08-01), Hutchinson

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