MTS Power Products logo

Email us for availability before ordering! McPherson Controls MTS SS321 Self Excited Automatic Voltage Regulator Replacement for MX321

$520.00

General Information:

Replacement for Newage MX321 and Onan 305-0823

McPherson Controls Self Excited Automatic Voltage Regulator

3 Phase Sensing Permanent Magnet Generator type AVR

Not a genuine Newage or Onan product

Features

  • Voltage Regulation < ±0.5% RMS
  • For Use In Parallel Operation
  • RAMP, DIP, DWELL, DROOP, RMS, U/F, Over Voltage & Over Excitation Adjustment Functions
  • Over Exc. / Over Volt. & UFRO LED Indicators
  • Current Limiting Function

 

Specs:

Model NO. SS321
Sensing Input Voltage 190~264 VAC 2 phase or 3 phase

Frequency 50/60 Hz selectable

Power Input(PMG) Voltage 170~220 VAC 3 phase 3 wire

Current 3A / phase

Frequency 100~120 Hz nominal

Output Voltage Max. 120 VDC

Current Continuous 4A, Intermittent 7A for 60 sec.

Resistance Min. 15 Ohm

Voltage Regulation < ±0.5% RMS (with 4% engine governing)
Voltage Build-up Residual volts at AVR terminal > 5 VAC
External Voltage Adjustment ±10% with 5 K Ohm 1 watt trimmer
Unit Power Dissipation Max. 18 watt
Thermal Drift 0.05% per °C change in AVR ambient
Soft Start Ramp Time 0.4~4 sec.
Analogue Input Max. input ±5 VDC

Sensitivity 1V for 5% generator volts

Input Resistance 1 K Ohm

Droop Input Burden 10 Ohm

Max. Sensitivity 0.22A for 5% droop (PF=0)

Max. Input 0.33A

Under Frequency Protection

(Factory Setting)

Set point 95% Hz

Slope 100~300% down to 30 Hz

Max. Dwell 20% volts/sec. recovery

Current Limit Input Burden 10 Ohm

Sensitivity range 0.5~1A

Over Voltage Detector Input Set point 300V

Time delay 1 sec. (fixed)

CB trip coil volts 10~30 VDC / 0.5 Amp

Over Excitation Protection Set point 120 VDC

Time delay 8~15 sec.

Environment Operating Temperature : -40~70 °C

Storage Temperature : -40~85 °C

Relative Humidity : Maximum 95%

Vibration : 3.3G @ 100~2 KHz

AVR Controls Functions VOLT : Output Voltage Adjustment

STAB : Stability Adjustment

UFRO : UFRO Knee Point Set

DROOP : To Set the Droop to 5% at PF=0

TRIM : To Optimize Analogue Input Sensitivity

EXC : Over Excitation Trip Level Set

DIP : Hz Related Voltage DIP Set

DWELL : Hz Related Recovery Time Set

I LIMIT : Stator Current Limit Set

OVER V : Over Voltage Trip Level Set

RAMP : No Load Voltage Ramp Set Time

RMS : Root Mean Square of Generator

Dimensions 203.0 (L) x 153.0 (W) x 39.1 (H) mm

 

Shopping Cart