AC500 load bank

500kW AC 3-phase | 167kW AC 1-phase

Key features

 
500kw load bank for diesel genset generator testing. Electrical resistive load. Power Prove model AC500
 

500kW load bank with integrated touchscreen control system providing the ultimate way to verify an electrical supply.

 

Advanced interface

The unique Digiload control system provides detailed insight into how the supply under test responds to load changes. All test data is recorded within the system and is exported instantly in .csv format when connecting a USB flash drive. The integrated touchscreen interface can be used to manually change the load power level or setup an automated schedule of load steps. Once created, load step sequences can be saved and recalled at any time.

Quick setup

Powersafe connectors fitted to the main load terminals make connection to the supply under test simple, fast and secure. The power connections are located away from the control panel so that operators can stand comfortably in front of the load bank without tripping over cables. With power connected, the 7” intuitive touchscreen interface enables load to be applied rapidly, with real time measurements displayed immediately.

 

Portable

Transport to any location with integrated fork lift points. Move around on-site using heavy duty castors, which are included as standard. Alternatively, the design can be installed in a fixed location, when requested, the heavy duty castors are replaced with mounting brackets with holes for anchor bolts.

Robust construction

The resistor elements used are from our catalogue of highly robust industrial wire coil and stamped grid technologies using stainless steel. The construction puts the cooling airflow in direct contact with the conductor surface to maximise heat transfer, thus providing the longest possible operating life for the elements. With decades of service in industry, electricity transmission and distribution systems the element technologies provide the highest level of reliability for our product.

 

500kW load bank technical specification

 

Voltage rating

 

400V 3-phase AC 50Hz (or 60Hz with external control supply)


Power ratings

 

3-phase

Load step resolution 25.0 kW

Maximum capacity 500 kW

 

1-phase

Load step resolution 8.33 kW

Maximum capacity 166.7 kW


Control and Ventilation

 

Manual controls

Control supply source rotary isolator

Fan start/stop buttons

Emergency stop button

Control interface 7” touch screen display

Cooling Forced convection

Fan 1 x 8.5kW AC fan, axial type and 2x control cabinet fans

Control supply 400V 3-phase AC 50Hz

Source Internal (supply under test) or external supply (recommended)


Connection Interfaces

 

Load connections 10 x Powerlock plugs (drain); 2 each of 3P, N & PE

External control supply 1 x EN 60309 5-pin 32A plug (inlet); 3P, N & PE

Data downloads 1 x USB Type A

Networking and remote 1 x RJ45 and 1 x 8-pin (remote power and e-stop)


Operating Environment

 

Suitable for outdoor use

Ambient temperature 5°C to 40°C

Ingress protection

IP23 Load enclosure

IP54 Control cabinet  


Construction

 

Resistor elements Stamped grid and wire coils

Element material Stainless steel

Main enclosure Dual layer; galvanized sheet steel, painted RAL9002 grey 

Portability

4 x heavy duty castors (2 x braked)

2 x fork lift pockets


Weight and Dimensions

 

Length 1643mm

Width 1164mm

Height 1303mm

Weight 560kg

 

Safety

 

Electrical protection

Over current and short circuit fuse protection 
Over voltage protection (via control system)

Thermal protection

Thermal trips for load and control compartments
Airflow status

Optional extras

Remote Control – the Digi-load Remote provides the ability to control a load bank via a wired connection. It can also be used as the single point of control for a network of load banks. Housed in a rugged IP66 case it includes a 10” touch screen and emergency stop.

Protective PVC cover available for additional protection during transport or storage.

Supply cables made to order to the desired length and with supply side connection method to suit the intended use.

Anchor bolt mounting plates available for permanent installation. (no-cost option since supplied instead of heavy duty castors)

 

Downloads

Technical datasheet PDF