AVR AS440 Automatic voltage regulator for UC224 or UC274 generators alternators

AS440 AVR is used in UC224 or UC274 generators. The AS440 offers an optional feature for paralleling with multiple generators.
The UC22 and UC27 Series alternators are using SX460 or AS440 AVR. A Permanent magnet generator powered excitation system is using MX341 and MX321 AVR.

UC22 alternator includes:
UCDI224C UCDI224D UCDI224E UCDI224F UCDI224G UCDI224V UCI224C UCI224D UCI224E UCI224F UCI224G UCI224V UCM224C UCM224D UCM224E UCM224F UCM224G
UC27 alternator includes:
UCDI274J UCDI274K UCI274C UCI274D UCI274E UCI274F UCI274G UCI274H UCM274C UCM274D UCM274E UCM274F UCM274G UCM274H

SAME AVR AS:
Voltage Regulator E000-24403/1P AVR
Voltage Regulator 10000-17096 AVR
Automatic Voltage Regulator 10000-17096 AVR

General description
Automatic voltage regulator AS440 is a half wave phase controlled thyristor type AVR and forms part of the excitation system for a brush-less generator. The design employs Surface Mount Technology (SMT) for high integration of features in a small footprint AVR.

Positive voltage build up from residual levels is ensured by the use of efficient semiconductors in the power circuitry of the AVR. The power and voltage sensing circuits have separate terminals, allowing the excitation power to be derived directly from the stator winding for basic applications or from an auxiliary winding if sustained short circuit performance is required.

The AS440 Automatic voltage regulator is linked with the main stator windings and the exciter field windings to provide closed loop control of the output voltage with load regulation of +/- 1.0%.
...