The SR9A Retrofit Voltage Regulator is an economical, direct replacement

for existing Basler Electric SR9A voltage regulators.

Designed for synchronous generators operating in 400 Hz applications,

it provides accurate voltage regulation, fast response times, and dependable

excitation control while utilizing the same mounting footprint as the original

regulator. The retrofit solution incorporates a modern AVC125-10 voltage

regulator and, where required, an internal sensing module to streamline

installation and reduce maintenance requirements.

Built for demanding power generation environments, the SR9A Retrofit

supports single- or three-phase sensing, reactive droop compensation,

line drop compensation, underfrequency protection, and integration with

accessories such as power factor controllers, excitation limiters, and auto

synchronizers. Its rugged construction, reliable performance, and

straightforward upgrade path make it an ideal solution for extending the

life and functionality of existing generator systems.

The SR and SSR Retrofit Voltage Regulators are designed as economical,

direct replacement solutions for legacy Basler SR and SSR voltage regulators.

Engineered for quick installation, these retrofit kits fit into the existing

mounting space and utilize terminal-to-terminal wiring to simplify field

replacement. Integrated CT input burden matching supports paralleling

systems with cross-current compensation, while accessory inputs provide

compatibility with var/power factor controllers and excitation limiters.

The SR and SSR Retrofit series delivers the same dependable performance

as the original regulators while helping extend the life and reliability of

generator excitation systems.