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The MCB will be opened when the relay "Command: MCB open" is energized.
The MCB will be opened under the following conditions if the MCB is closed:
• If an emergency power operation is initiated (mains failure) once the generator
•
voltage is within the permissible limits
• Prior to the closure of the GCB (depending on the CB logic which has been set)
•
• Upon pressing the "MCB" or "GCB" softkey (dependent upon the configured CB logic)
•
in MANUAL operating mode
4.4.3.1.6
Transition Modes (Breaker Logic)
Breaker logic "PARALLEL"
Parallel operation is enabled by configuring parameter
to "PARALLEL".
Parallel breaker logic must be selected for the following operation modes:
• islanded operation
•
• Mains parallel operation
•
In the event of an engine start request the following occurs:
• The GCB is synchronized and closed
•
• The generator assumes load and the adjusted real power or reactive power setpoints
•
are controlled
Following the stop request the following occurs:
• The generator sheds load until real power has reached the "Unload limit"
•
• The generator power factor is controlled to "1.00" (unity)
•
• The GCB is opened
•
• The engine is shut down following the configured cool down period
•
When a stop command is issued to the engine, soft loading (power reduction) is carried
out before opening the GCB, except an alarm of class D or F is present.
Breaker logic "INTERCHANGE"
The following only applies to application mode
A04
.
269
easYgen-3000XT Series
B37574
4 Configuration
4.4.3.1.6 Transition Modes (Breaker Logic)
Released