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2
EA440
SECTION 1 : SPECIFICATION
Sensing Input
Quadrature Droop Input
Voltage
190
– 264 Vac, 1 phase 2 wire
Burden
10 ohms
Frequency
50 / 60 Hz, selectable
Max. input
0.33 A
Max. sensitivity
0.07 A for 5% droop (PF=0)
Excitation Output
Voltage
Max. 90 Vdc @ power input 207 Vac
Analogue Voltage Input
Current
Continuous 4A
Input Resistance 1K ohm
Intermittent 10A for 10 secs.
Max. Input
+/- 5 Vdc
Resistance
Min. 15 ohm
Sensitivity
1V for 5% generator volts
External Voltage Adjustment
Under Frequency Protection
Max. +/- 8% @ 1K ohm 1 watt potentiometer
Set
point 95% Hz
Slope
170% down to 30 Hz
Voltage Regulation
Less than +/- 1% ( with 4% engine governing )
Voltage Thermal Drift
Less than 3% at temperature range -40 to +70
˚C
Build Up Voltage
5 Vac residual volts at power input terminal
Environment
Operating Temperature
-40 to +70
˚C
Soft Start Ramp Time
Storage Temperature
-40 to +85
˚C
2 s/- 10%
Relative Humidity
Max. 95%
Vibration
3.3 Gs @ 100
2K Hz
Static Power Dissipation
Max.12 watts
Dimensions
150.0 (L) x 135.0 (W) x 48.0 (H) mm
Weight
418 g +/- 2%
115.0
135.0
130.0
150.0
21.5
48.0
5.5
STABILITY
DROOP
TRIM
VOLT
UFRO
LED
C B A
C-A < 90KW
C-B < 90-550KW
B-A < 550KW
Resistor
ATTENTION
1. AVR can be mounted directly on the
engine, genset, switchgear, control
panel, or any position that will not affect
operation. For dimension reference,
please see Figure 1.
2. All voltage readings are to be taken with
an average-reading voltmeter Meggers
and high-potential test equipment must
not be used. Use of such equipment
could damage the AVR.
3. Improper setting of under-frequency
protection could cause the output
voltage of the unit to drop or become
unstable under with changes in load.
Avoid making any changes to the U/F
setting unless necessary.
Figure 1
Outline Drawing
