System for error-protected operation of multipanel, power distri

Details System for error-protected operation of multipanel, power distri System for error-protected operation of multipanel, power distri

1983-07-22

1985-03-26

Pellinen, A. D.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

307115, 307116, 307142, 364492, H01H 4700

Patent

active

045077037

ABSTRACT:
An arrangement for generating in each switching panel of a multipanel switching facility of an electrical power distribution network a digital operating-state image derived from command inputs and switching position signals. The digital operating state image is transmitted to a collecting memory arranged in a coupling panel which produces an overall image of all switching panels; which overall image is transmitted to the individual switching panels at periodic time intervals. A checking procedure is then conducted in the individual switching panels using the overall image. The arrangement utilizes microprocessors which are coupled to one another so as to exchange data via several transmission paths which are one-bit wide. This arrangement obviates the need for an interlock cable harness in the switching panels and cross-cabling between the switching panels.

REFERENCES:
patent: 3697846 (1972-10-01), Mueller
patent: 4234801 (1980-11-01), Small
patent: 4318006 (1982-03-01), Himeno et al.
"Siemens-Energietechnik", 1981, No. 1, pp. 20-23.

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