ABB 3BHE030579R0003 Excitation System PCB – Compatible with UNITROL 1020 Digital AVR

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Description The ABB UNITROL 1020 UNS0119A-Z,V1(internal part number 3BHE030579R0003)is a high-performance digital excitation control board designed for the ABB UNITROL 1020 automatic voltage regulator(AVR)system.It serves as the central processing and regulation unit for synchronous generator field current control in thermal,hydro,and industrial power plants. This compact printed circuit board integrates real-time voltage regulation,power system stabilization(PSS),protection logic,and…