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ABB P3ECA HENF315309R2｜Analog PI Regulator Board ｜
Receive the deviation signal (the difference between the given value and the feedback value), complete the analog PI (proportional+integral) operation, and form the core of the excitation system closed-loop regulator;
On board multi turn precision potentiometer, with proportional gain and integral time constant set separately, and AVR dynamic characteristics set on site;
Equipped with integral limiting function, it suppresses integral saturation and prevents output overshoot during unit excitation and faults;
Output the PI corrected control command and send it to the downstream power drive circuit;
Pure analog operational amplifier circuit, without microprocessor;
In the entire control chain, located downstream of P3EB and upstream of OCAH, it is the core computing unit of the voltage closed-loop.\
P3ECA HENF315309R2
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