Kutai electronics EA16 Operation Manual

EA16

Generator Automatic Voltage Regulator

Operation Manual

Universal 16Amp Self Excited Automatic Voltage Regulator

for use in 220 / 380 / 440 / 480 VAC brushless generators

with paralleling compatibility

Headquarters : No.3, Lane 201, Chien Fu ST., Chyan Jenn Dist., Kaohsiung, TAIWAN
Tel : + 886-7-8121771 Fax : + 886-7-8121775 URL : http://www.kutai.com.tw

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2 EA16

1. SPECIFICATION

Sensing Input

Voltage 170 ~ 510 VAC, Single Phase 2 wires
Voltage is DIP Switch selectable
Frequency 50/60 Hz, DIP Switch selectable

Power Input

Voltage 60 ~ 300 VAC, Single Phase 2 wires

Output

Voltage Max. 90 VDC @ 240 VAC input
Current Continuous 16A
Intermittent 20A for 10 sec
Resistance Min. 5 ohm

Voltage Regulation

< ± 0.5% ( with 4% engine governing )

Voltage Build-up

Residual voltage at AVR terminal > 5 VAC

Thermal Drift

0.03% per °C change in AVR ambient

Load Current Compensation
1A or 5A Max. 7% @ PF0.5 DIP Switch Selectable

Analogue Voltage Input

Max. ±5VDC. ±10% @ ±3VDC

Over Excitation Protection

Max Output DCV 95% 20sec

External Volts Adjustment

± 5% with 2K ohm 1 watt trimmer

Unit Power Dissipation

Max. 10 watt

Under Frequency Protection ( Factory Setting )

50/60 Hz DIP SW selectable

Soft Start Ramp Time

2 sec.

Dimensions

156mm L * 106mm W * 43mm H

Weight

450g ± 2%

The EA16 AVR is an update of the EA15A AVR. It is similar to the original EA15A in power and voltage
sensing capabilities but with new enhanced paralleling functions; the user can now select the CT inputs either
1 & 5 Amp or use new A1 & A2 analogue signal inputs terminals for use with PLC paralleling controls. It has
new over-voltage excitation safety circuits to prevent damage caused by the accidental detachment of the
sensing wires or irregularities on the generator’s excitation circuits.

High Temperature

ATTENTION

1. AVR can be mounted directly on the engine,
genset, switchgear, control panel, or any position
that will not affects 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. Secure all wiring connection. Do not install AVR at a
place with high vibrations to prevent loose
connections. For safety do not touch the heat sink
while in operation.

4. Fuse specification : 16A / 250V slow blow type.

5. Terminal："Fast-On" terminals 6.35mm (1/4 inch) &
With 4mm crimping terminal.

Figure 1 Outline Drawing

UNIT :

mm