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PLC Power Generation: Permissives, Sync and Load Shed

September 13, 2026January 20, 2024 by PLC

Ladder rung for a generator start permissive: start push button sealed in, lube oil pressure healthy, generator breaker open, lockout relay reset, driving the start sequence coil

Where the PLC stops and the relay starts, a generator start permissive rung, the synchronising handshake, load shed stages and switchgear interlocks.

Categories Articles, Electrical basics Tags iec 61850, load shedding, power generation, switchgear, synchronization

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