AC500 load bank

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

Key features

 
 
500kw load bank for generator testing. Electrical resistive load
 
 

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. The optional lifting frame provides additional protection to the top of the equipment enclosure and lifting eyes for use when moving the unit with a crane. 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.

 

Technical specification

 

Voltage rating

 
 

400V 50Hz

Power ratings

 

3-phase

Maximum capacity 500 kW

Load step resolution 25.0 kW

 

1-phase

Maximum capacity 166.7 kW

Load step resolution 8.33 kW


Control and Ventilation

 

Manual controls

System on/off pushbuttons

supply rotary selector switch

emergency stop

Control interface 7” touchscreen

Cooling Forced convection

Fan 1 x 8.9kW AC fan, axial type

Control supply 3-phase AC, voltage to suit version

Source Internal (supply under test) or external supply


Connection Interfaces

 

Load connections

4 x Powersafe sockets (3P + N)

1 x PE M 16 Stud connection

External control supply 1 x EN 60309 3P+PE 16A

Data downloads 2 x USB Type A

Networking and remote 2 x RJ45


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 High grade stainless steel

Base platform Hot-dip galvanised steel 

Main enclosure

Dual layer; galvanized sheet steel, painted RAL9002 grey 

Hot-dip galvanised steel

Portability

4 x heavy duty castors (2 x braked)

fork lift pockets

optional lifting frame includes 4 x lifting eyelets


Weight and Dimensions

Length 1750mm

Width 1270mm

Height 1303mm

Weight 560kg

 
 

Safety

 

Electrical protection

Over current and short circuit fuse protection 

Over voltage protection (via control system)

Thermal protection

PT100 monitoring (load and control compartments)

PT100 healthy status

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, emergency stop and 2 x USB  data ports.

Network capability – when this hardware capability is enabled the load bank can be connected with other load banks via Modbus TCP to create a centrally controlled network.

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