KUTAI VOLTAGE REGULATOR AVR DIRECT REPLACEMENT FOR STAMFORD NEWAGE MX321 Onan 305-0823

Automatic Voltage Regulator for PMG Generator
EA321 3 Phase Sensing Permanent Magnet Generator type voltage regulator is a compatible replacement for Newage Stamford MX321 and Onan 305-0823.
*All manufacturer names and numbers are used for reference purpose only and do not imply that any part is the product of these manufacturer.

Features

• Voltage regulation less than +/-0.5% RMS
• For use in parallel operation
• RAMP, DIP, DWELL, DROOP, RMS, U/F, Over Voltage and Over Excitation Adjustment Functions
• Over Exc. / Over Volt. and UFRO LED indicators
• Current limiting function

Specifications

• Sensing Input: Voltage 190 to 264 Vac 3 phase, Frequency 50/60 Hz selectable
• Power Input (PMG): Voltage 170 to 220 Vac 3 phase 3 wire, Current 3A / phase, Frequency 100 to 120 Hz nominal
• Excitation Output: Voltage Max. 120 Vdc @ power input 220 Vac, Current Continuous 4A Intermittent 7A for 60 seconds, Resistance Min. 15 ohms,
• External Voltage Adjustment: Max. +/-10% @ 5K ohms 1 watt potentiometer
• Voltage Regulation: Less than +/-0.5% RMS (with 4% engine governing)
• Build Up Voltage: 5Vac residual volts at power input terminal
• Soft Start Ramp Time: 0.4 to 4 seconds
• Static Power Dissipation: Max. 18 watts
• Quadrature Droop Input: Burden 10 ohms, Max. Input 0.33A, Max. Sensitivity 0.22A for 5% droop (PF=0)
• Analogue Voltage Input: Input Resistance 1K ohm, Max. Input +/-5 Vdc, Sensitivity 1V for 5% generator volt
• Over Voltage Detector Input: Set Point 300V, Time Delay 1 second (fixed), CB trip coil volt 10 to 30 Vdc / 0.5 Amp
• Current Limit Input: Burden 10 ohms, Sensitivity Range 0.5A to 1A
• Under Frequency Protection (Factory Presets): Set Point 95% Hz, Slope 100 to 300% down to 30 Hz
• Over Excitation Protection: Set Point 120 Vdc, Time Delay 8 to 15 seconds
• Voltage Thermal Drift: Less than 5% at temperature range -40 to +70 °C

AVR Control Functions

• VOLT: Voltage adjustment
• STAB: Stability adjustment
• UFRO: Setting under frequency protection knee point
• DROOP:To set the Droop to 5% at PF=0
• TRIM: To optimize analogue input sensitivity
• EXC TRIP: 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

Environment

• Operating Temperature: -40 to +70 °C
• Storage Temperature: -40 to +85 °C
• Relative Humidity: Max. 95%
• Vibration: 3.3 Gs @ 100 to 2K Hz

Physical Specifications

• Dimensions: 203.5 (L) x 153.6 (W) x 43.5 (H) mm
• Weight: 530 g +/-2%