SP Powerworld EA480

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

The SP Powerworld EA480 is a direct replacement for the Original Stamford* AS480 E000-14808/1P. It's equipped with Over Excitation Protection, Soft Start Voltage Ramping Function, EMI suppression and Under Frequency Protection.

Accepted worldwide as the only Quality and Legal aftermarket replacement. It's been designed to work in exactly the same way and operates at the same performance. It’s the same size, function and has the same wiring connections, it also comes with 12 months warranty.

Ex stock - shipped Worldwide. For GBP, EURO or USD pricing please contact us:

Sales: james.daff@sp-powerworld.com

Office: info@sp-powerworld.com

Tel: +44 (0)115 923 2568 (United Kingdom)

Tel: (24-hour) +44 (0)7484709956 (United Kingdom)

* All manufacturer names, numbers, symbols and descriptions are used for reference purpose only and do not imply that any part is the product of these manufacturers.

Manual

Features

Rated frequency 50 / 60 Hz
Under frequency protection and soft start voltage ramping
EMI suppression
Voltage regulation less than +/-0.5%
Over excitation protection
Quadrature Droop Input for parallel operation
Supports connection with Stamford Excitation Boost System (EBS)

Specifications

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

Environment
* Operating Temperature: -40 to +70 °C
* Storage Temperature: -40 to +85 °C
* Relative Humidity: Max. 95%
* Vibration: 5.5 Gs @ 60 Hz

Physical Specifications
* 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%