AC500 load bank
500kW AC 3-phase | 167kW AC 1-phase
Key features
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)