HT INDUSTRIAL AUTOMATION LIMITED

KUTAI Automatic Voltage Regulator AVR EA480

KUTAI EA480 AVR Operation Manual Download.pdf

KUTAI EA480 AVR Product Specification Download.pdf

100% Brand New Original Kutai AVR made in TaiWan for sale.

Original Kutai Newage Series AVR: ADVR-440, EA321, EA341, EA440, EA460, EA480

Analog, single-phase sensing. Excitation output 5 Amp with half-wave rectifier for use with self-excited, brushless generators

EA480 is a direct replacement for Newage Stamford AS480. It's equipped with Over Excitation Protection, Soft Start Voltage Ramping Function, EMI suppression and Under Frequency Protection.

Features for KUTAI EA480 AVR:

Ø  Rated frequency 50/60 Hz

Ø  Under frequency protection and soft start voltage ramping

Ø  EMI suppression

Ø  Voltage regulation less than +/-0.5%

Ø  Over excitation protection

Ø  Quadrature Droop Input for parallel operation

Ø  Supports connection with Stamford Excitation Boost System (EBS)

Specifications for EA480 KUTAI AVR:

Sensing / Power Input

(Average Reading)

Voltage 60 to 300 Vac 1 phase 2 wire

Frequency 50/60 Hz (Jumper Selected)

Excitation Output

110V 1 phase Continuous 31 Vdc 5A

Max. 45 Vdc 7.5A for 10 seconds

220V 1 phase Continuous 63 Vdc 5A

Max. 90 Vdc 7.5A for 10 seconds

Note：If AVR is mounted externally to alternator continuous current should be reduced by 20%

Excitation Resistance

Min. 13 ohms Max. 100 ohms @ 220V

Build Up Voltage

Residual voltage at AVR terminals greater than 4 Vac @ 25 Hz

Volts Regulation

Less than +/-0.5% (with 4% engine governing)

Response Time

Less than 20 milliseconds

Voltage Thermal Drift

Less than 3% from -40 to +70 °C

Static Power Dissipation

Max. 4 watts

External Volts Adjustment

Max. +/-10% @ 1K ohm 1 watt potentiometer

Fixed 7.5K ohms enables 110Vac sensing

Quadrature Droop Input

Max. input 0.33A

Sensitivity 0.07A for 5% voltage drop (PF=0)

Over Excitation Protection

Excitation Voltage 70 Vdc +/-10%

Time Delay 10 to 15 seconds

Operating Temperature

-40 to +70 °C

Storage Temperature

-40 to +85 °C

Relative Humidity

Max. 95%

Vibration

5.5 Gs @ 60 Hz

Physical Specifications for EA480 KUTAI Voltage Regulator:

Dimensions

130.0 (L) x 90.0 (W) x 39.0 (H) mm

5.12 (L) x 3.54 (W) x 1.54 (H) inch

Weight

260 g +/-2%

0.573 lb +/-2%