If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. ABB UN 1000b-Z,V3 3BHE014557R0003 Voltage Regulator Introduction The ABB UN 1000b-Z V3 (3BHE014557R0003) is a high-performance Automatic Voltage Regulator (AVR) designed under ABB’s UNITROL 1000 platform. It is used to maintain stable excitation and voltage control for synchronous generato *Your Name: *Your Email: *Your Name: *Vdcode: Submit