XD2C

Compact device for excitation of synchronous machines

Überblick

This device is a compact device for excitation of synchronous machines with integrated power circuits

Applications include the excitation, monitoring, and synchronization of brushless synchronous machines in the range of tens of megawatts as well as smaller units with less than a megawatt.


Characteristics

Supply voltage: 3 x 230 V AC

DC current: 7.5 A (150 V DC)

Voltage control: ± 0.2 %

Superordinate reactive power / cos(φ):  ± 0.5 %

Armature current measurement: 1 A,  1 phase

Armature voltage measurement: 100 V, 3 phase

Synchronization voltage measurement: 100 V,  1 phase

 

 


Bedienung

Operation

For easy, comprehensive parameter management and diagnosis, a web server is integrated in the device. Additional software is not required.


Primärfunktionen

Operating modes

Reactive power control

Power factor control

Voltage control

Excitation current control

Voltage control blocked (motoring)

V/f-adjustment / open loop

Seamless switching between operating modes

 

 


Limiters and additional functions

Excitation current limiter: 2 stage, time-overcurrent principle

Armature current limiter: 2 stage, time-overcurrent principle

Armature voltage limiter

Under-excitation limiter along four line segments

Reactive power statistics

Stabilization of real power(PSS)*

V/f droop control

Grid synchronization*

Zero-overshoot ramp-up control

 

 


Machine monitoring and control

Generator overvoltage with release

integrated PLC*

Monitoring of rotating diodes (for brushless machines)* 

 

*) Depends on device configuration

 

 

F&S