Überblick
The XD2S DC devices are equipped with an integrated power circuit for up to 30 A.
Applications include the excitation and monitoring of brushless synchronous machines as well as excitation-machine-equipped synchronous machines.
The XD2S family is a system of compact devices for synchronous machine excitation with two basic configurations. The devices can be either integrated with the power circuit or control/drive an external circuit for excitation and monitoring of machines in the range of hundreds of megawatts, and can also be used for smaller units of a megawatt or less.
Characteristics
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Supply voltage: 3 x 230 V AC |
DC current: 30 A |
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Control accuracy: ± 0.5 % |
Applications: synchronous machines |
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Redundant power supply input |
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Bedienung
Operation
For easy, comprehensive parameter management and diagnosis, we provide the EM2. Additional options are available for special applications.
Primärfunktionen
Operating modes
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Reactive power control |
Power factor control |
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Voltage control |
Excitation current control |
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Reactive power statistics |
Stabilization of real power |
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V/f droop control |
Voltage control blocked (motoring) |
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Power factor control cascaded on excitation current control (motoring) |
Limiters and additional functions
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Excitation current limiter: 2 stage, time-overcurrent principle |
Armature current limiter: 2 stage, time-overcurrent principle |
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Armature voltage limiter |
Under-excitation limiter |
Machine monitoring and control
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Generator overvoltage with release |
Monitoring of rotating diodes (for brushless machines) |