Method of detecting the position of a switching device and encap

Details Method of detecting the position of a switching device and encap Method of detecting the position of a switching device and encap

1998-07-31

2000-02-01

Lefkowitz, Edward

Communications: electrical

Condition responsive indicating system

Specific condition

3406861, G08B 2100

Patent

active

06020821&

ABSTRACT:
A method for detecting the position of a switching device and an encapsulated switching installation having at least one switching device. A transmitted signal is emitted into the interior of an encapsulation to make it possible to easily detect the position of a switching device in an encapsulated switching installation. A resultant reflection signal is received and stored. After a repetition of this process, the two received reflection signals are compared with one another. In the event of any discrepancy, a message signal is produced for the new switching state.

REFERENCES:
patent: 4864285 (1989-09-01), Rodden
patent: 5844493 (1998-12-01), Pohl et al.
patent: 5874900 (1999-02-01), Panto
patent: 5914664 (1999-06-01), Scheele

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