Generator Protection Systems
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Woodward protects alternators against distortion
Woodward helps you guard your generators from damage due to electrical faults by providing according protection devices.
Main protection device functions are:
| - Differential Protection |
ANSI code 87G |
| - Time Overcurrent an Short-circuit Protection |
ANSI code 51/50/67 |
| - Stator Earth Fault Protection |
ANSI code 51N/50N/67N |
| - Restricted Earth Fault Protection |
ANSI code 64REF |
| - System Earth Fault Protection |
ANSI code 59N |
| - Rotor Earth Fault Protection |
ANSI code 64 |
| - Excitation Field Protection |
ANSI code 40 |
| - Under- and Overvoltage Protection |
ANSI code 27/59 |
| - Under -and Overfrequency Protection |
ANSI code 81 |
| - Reverse Power Protection |
ANSI code 32R |
| - Phase Balance Protection |
ANSI code 47 |
| - Negative Sequence Protection |
ANSI code 46 |
Network, Protection and Coordination Studies can be provided to design and verify the protection concept and to calculate the according protection settings.