UNITROL® 6000 Static Excitation Systems (SES)
The excitation current goes to the generator rotor through brushes. The excitation current in this case comes directly from excitation converter.
- Direct Excitation current range: 200-12’000 A
- Fast response (<20 ms)
- Fast field discharge by discharge resistor or inverter operation
- Size of excitation transformer depends on field requirements only
- Shorter shaft
- For maintenance on power rectifier the machine does not need to be stopped
- Direct measurements of field quantities Uf , If possible
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