Compact unit with integrated power section for excitation of brushless synchronous machines or synchronous machines with excitation machine
The XD3S DC exciter is an exciter with integrated power section for DC currents for excitation of synchronous generators and motors. It is designed for the operation of synchronous machines with low excitation current or auxiliary excitation current requirements.
Characteristics
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Operating voltage: 3 x 250 V AC Control deviation: 0,25 % Redundant operating voltage supply |
Direct current: 25 A continuously, 40 A for 30 s Suitable for: Synchronous machines
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Bedienung
Operation
Parameterization is performed via the powerful EM3000 Engineering Manager, which is available as PC application software and is connected to the controller via the Ethernet service interface.
Primärfunktionen
Operating modes
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Voltage control (PID) |
Excitation current control (PID) |
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Uf-controller / open loop operation |
Bumpless switching between all operating modes |
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Reactive power statics |
Active power stabilization |
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Operating modes and setpoints controllable via galvanic inputs or Modbus |
Power factor correction (PID) at machine or grid transfer point |
Limiters and additional functions
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Armature current limitation for mains and short-circuit operation (AMZ with maximum current stage) |
Reactive power statics, reactive current compensation control for parallel synchronous machines |
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Under-excitation limitation, definition via straight line segments |
Excitation current limitation (AMZ with maximum current stage) |
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Active power stabilization PSS2A, B, C Excitation control, overshoot-free (soft start) Static voltage maintenance / reactive power provision according to VDE-AR-N 4110 / 4120:2018-11 (section 10.2.2) |
V/f reduction Setpoint synchronization for redundant systems Grid synchronization |
Machine monitoring and control
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Stator voltage monitoring UMZ, 3-stage Diode fault detection in brushless operation |
Stator current monitoring UMZ, 3-stage
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