Specifications
057-295 ISSUE: 1
Page 10 of 60
2.4 GENERATOR CURRENT MEASUREMENT
The AVR measures current in a chosen phase for the purposes of quadrature droop using terminals
S1
and
S2
. For further details, refer to the section entitled
Quadrature Droop
elsewhere in this
document.
Parameter
Description
Arrangement
Single phase on any phase.
Measurement Method
True RMS up to 11
th
harmonic.
Maximum Continuous Current
5 A
Burden on the CT
0.25 VA
Common Mode Offset
±1 V peak from
S2
terminal to
A-
and
P2
(internally
connected).
Accuracy
±1 % of Nominal (5 A) excluding CT error.
Droop Adjustment
0% to 10%
2.5 EXTERNAL VOLTAGE BIAS
External voltage bias inputs allow an external circuit to influence the output of the generator.
Parameter
Description
Potentiometer Bias Input
(terminals
P1
and
P2
)
0
Ω to 5 kΩ
DC Voltage Bias Input Range
(terminals
A1
and
A2
)
-10 V to 10 V
DC Voltage Bias Input Impedance
> 10 k
Ω
Resistive Bias Range
±1% to ±16% of Nominal Voltage set using PC software
DC Voltage Bias Range
±1% / V to ±16% / V of Nominal Voltage set using PC
software
2.6 EXCITER FIELD OUTPUT
Parameter
Description
Exciter Winding Impedance
5
Ω to 50 Ω.
Exciter Winding Inductance
0.3 H to 1.2 H
2.6.1 CONTINUOUS RATINGS
Continuous rating is subject to output power being 500 W or below.
Parameter
Description
Output Voltage
0 V DC to 100 V DC.
Output Current
0 A DC to 7 A DC.
2.6.2 PEAK CONDITIONS
Peak conditions are for a maximum of 10 seconds.
Parameter
Description
Output Voltage (Overload)
150 V DC for 10 seconds.
Output Current (Overload)
15 A DC for 10 seconds.
