The 2051 and 2052 generator protection units are specially designed for the protection of generators below 50MW. 2051 generator differential protection
Together with 2052 generator backup protection and 2053 generator measurement and control unit, it constitutes a complete generator protection measurement and control system.
2051 protection function
Differential quick-break protection
Ratio differential protection
Ct disconnection monitoring and blocking
2052 protection function
Composite voltage blocking overcurrent protection
Negative sequence overcurrent protection
Stator grounding protection
Overvoltage protection
Overload frequency protection
Transverse difference protection and loss of excitation protection
Reverse power out-of-step protection
Control and signal
16 switching inputs
4 protection relay outputs
4 protection action signal relays
1 self-test signal relay
Event records
240 event sequence records
Protection events
Alarm events
Switch displacement events