ENGGA EVC300i Operating Manual

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