Method for error-protected actuation of the switching devices of

Details Method for error-protected actuation of the switching devices of Method for error-protected actuation of the switching devices of

1986-11-13

1988-08-30

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Plural supply circuits or sources

307113, 307115, 379 12, 379275, 340826, 324418, H01H 4700, H04M 322

Patent

active

047679417

ABSTRACT:
A method for error-protected switching operation of switching devices of a high-voltage switching station. The current operational state of the station is determined from the signals provided by position indicating contacts (K.sub.I, K.sub.II, K.sub.III) of the switching devices. Using the obtained operational state, switching operation request commands (for example KA) are checked for release or blocking status by means of error-protected switching interlocking rules. In the case of changes in the topological configuration of the high-voltage switching station and/or in the case of changes of the error-protected switching interlocking rules, it is possible to adapt the basic method to these changes in a simple manner and without losing operational reliabilty. This is achieved by decoupling the topological configuration of the high-voltage switching station from the error-protected switching interlocking rules. To this end, the topological configuration of the high-voltage switching station and the error-protected switching interlocking rules are stored independently of each other. From current position indicating signals of the switching devices and the topological configuration, topological elements establishing the current operational state of the high-voltage switching station are formed by means of which the error-protected switching interlocking rules are interrogated for releasing or blocking a switching operation request commands (KE).

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