STAMFORD SX421 VOLTAGE REGULATOR FOR STAMFORD GENERATORS

STAMFORD E000-24210, 594-080

General Description / Specifications

SX421 is a three phase sensed Automatic Voltage
Regulator and forms part of the excitation system for a
brush-less generator.

In addition to regulating the generator voltage, the AVR
circuitry includes a quantity of other useful features.
Excitation power is derived straightforwardly from the generator
terminals.

Positive voltage build-up from residual levels is ensured by
the use of proficient semiconductors in the power circuitry of
the AVR.

The AVR senses the voltage in the main generator winding
and controls the power fed to the exciter stator and hence
the main rotor to sustain the generator output voltage
Within the particular limits, compensating for load, speed,
temperature and power factor of the generator.

SENSING INPUT

> 190-264V ac max, 2 or 3 phase

> 50-60 Hz nominal

POWER INPUT

> 190-264 Vac max, 3 phase only

> 50-60 Hz nominal

OUTPUT

> Voltage max 90V dc at 207V ac input

> Current continuous 4 A
> Intermittent 6A for 10 secs.
> Resistance 15 ohms minimum

For more technical information please click on the data sheet located on the right side -->