OPERATING MANUAL FOR AUTOMATIC VOLTAGE REGULATOR
MODEL NO : EVC300i
1. INTRODUCTION
2. ENVIRONMENTAL
3. TECHNOLOGY SPECIFICATION
The EVC300i Voltage Regulator is thyristor base to control the DC exciter field power of conventional
50 or 60 Hz brushless generators. The AVR circuitry includes under speed and over load protection
features. Excitation power is derived directly from the generator terminals.
-30 to 80°C (-22 to 176 F)
-40 to 80°C (-40 to 176 F)
Less than 2800 meter
<90%
2.1. Operating temperature:
2.2. Storage temperature:
2.3. ALTITUDE:
2.4. RELATIVE HUMIDITY:
Sensing Input
Power Input
Voltage Adjust Range
Field Resistance
Voltage Regulation
Output Voltage
Output Current
Terminal V - V
for 220 Vac
Terminal V - V
for 400 Vac
Voltage: 180 to 250 Vac
Frequency: 50 Hz or 60 Hz
180 - 300 Vac, 300 - 520 Vac
< 1%
Maximum 90 Vdc @ 240 Vac
Maximum continuous: 6.3 A @ 240 Vac
10 second forcing: 10 A @ 240 Vac
220
380
Recommend 9 - 24
±
Ω
Paralleling
Voltage Buildup
External Volts Adjustment
Thermal Drift
Analog Voltage Input
Current Compensation
Dimensions
Weight
Internal burden and adjustment for 0 to 10%
droop at 1 A, 0.8 PF, (from external CT)
4Vac, 30 Hz
At least
10% with 100k ohm 1 watt trimmer
0.05% per
‘
C
’
change in AVR ambient
In : 1A Input
Not Less than 10 % @ P.F. = 0.8
122 mm L x 93 mm W x 38 mm H
300
10g
±
±5VDC, adjustable output voltage is no less than
2% for 1VDC (i.e. for ±5VDC it come out to be
±10%)
±
EVC300i
Generator Automatic Voltage Regulator
Operation Manual
Page 1 of 7
Updated on 02 Feb2015
