Title :
A manual/automatic synchronization circuit for a 37.5 MVA steam turbine driven generator
Author :
Evans, Richard A.
Author_Institution :
Dow Chem. USA, Midland, MI, USA
Abstract :
A manual/automatic synchronizing circuit is detailed that uses triply redundant protective levels for both the manual and automatic circuits. The first and second protective levels, shared by both circuits, comprise a solid-state automatic synchronizing relay in tandem with a solid-state synchronization check relay. An operator/synchroscope provides the third protective level for the manual circuit, while a microprocessor based governor provides the third protective level for the automatic circuit. A review is presented of the philosophy, design, and operation of the circuit.<>
Keywords :
electric generators; relay protection; steam turbines; appa power 37.5 MVA; manual/automatic synchronization circuit; microprocessor based governor; solid-state automatic synchronizing relay; solid-state synchronization check relay; steam turbine driven generator; synchroscope; triply redundant protective levels; Microprocessors; Protection; Protective relaying; Solid state circuits;
Conference_Titel :
Industry Applications Society Annual Meeting, 1988., Conference Record of the 1988 IEEE
Conference_Location :
Pittsburgh, PA, USA
DOI :
10.1109/IAS.1988.25256
