module PM861K01

module PM861K01

module PM861K01

A typical bay with apparatus control function consists of a combination of logical nodes or functions that are described here:

• The Switch controller (SCSWI) initializes all operations for one apparatus. It is the command interface of the apparatus. It includes the position reporting as well as the control of the position

• The Circuit breaker (SXCBR) is the process interface to the circuit breaker for the apparatus control function.

• The Circuit switch (SXSWI) is the process interface to the disconnector or the earthing switch for the apparatus control function.

• The Bay control (QCBAY) fulfils the bay-level functions for the apparatuses, such as operator place selection and blockings for the complete bay.

• The Reservation (QCRSV) deals with the reservation function.

• The Protection trip logic (SMPPTRC) connects the “trip” outputs of one or more protection functions to a common “trip” to be transmitted to SXCBR.

• The Autorecloser (SMBRREC) consists of the facilities to automatically close a tripped breaker with respect to a number of configurable conditions.

• The logical node Interlocking (SCILO) provides the information to SCSWI whether it is permitted to operate due to the switchyard topology. The interlocking conditions are evaluated with separate logic and connected to SCILO .