HT INDUSTRIAL AUTOMATION LIMITED

STAMFORD NEWAGE AvK AVR Voltage Regulator AS540

STAMFORD AS540 AVR OPERATION MANUAL.pdf

Genuine STAMFORD AVRs: AS440, AS480, AS540, COSIMAT N+, DECS 100, DECS 150, DECS 250, DM110, DM710, DM730, MX321, MX322, MX341, MX342, UNITROL 1010, UNITROL 1020

The AS540 is an analogue, 2-phase sensing, self-excited automatic voltage regulator (AVR) incorporating an interface for the optional auxiliary winding for improved motor starting performance and sustained short circuit current.

The AS540 is provided as standard with the STAMFORD S0 and S1 alternators.

STAMFORD AS540 Main Stator Powered AVR ( Part Number: A054P369 )

Same AVR as:

Onan Cummins J0001910134

Cummins J0191-0134

AVK 80128133-006

Stamford AVK 291381

The STAMFORD Avk AS540 AVR provides closed loop control by sensing the alternator output voltage at the main stator windings and adjusting the exciter the stator field strength. Voltage included in the exciter rotor rectified by the rotating diodes, magnetises the rotating main field which includes voltage in the mani stator windings. A seff-excited AVR receives power from the alternator output terminals or a special auxiliary winding in the main stator winding.

Sensing Input:

   Voltage : 95 VAC to 130 VAC 1 phase or 190 VAC to 265 VAC 1 phase

   Frequency: 50 Hz to 60 Hz nominal

Power Input:

   Voltage: 95 VAC to 265 VAC 1 phase only

   Frequency: 50 Hz to 60 Hz nominal

Power Output:

   Voltage: Maximum 82 VDC at 200 VAC input

   Current: Continuous 4A, Transient 7.5A for 10 seconds