Resistive
Load Bank
50 kVA Automatic Resistive Load Bank
Our 50 kVA / 50 kW automatic resistive load bank provides controlled testing at unity power factor for DG sets, UPS systems, transformers, alternators, inverters, and other AC power sources. PLC and HMI control support manual operation, automatic load sequences, load cycling, and endurance testing.
Key Features:
- 50 kVA / 50 kW at unity power factor
- 415 V AC, three-phase, four-wire, 50 Hz supply
- PLC control with HMI touch screen and 12 independently controlled load stages
- Live electrical measurements, configurable data logging, and test reports
- Forced-air cooling with fan sequencing and safety interlocks
Technical Specifications
| Parameter | Resistive Load Bank |
|---|---|
| Product Type | Automatic Resistive Load Bank |
| Rated Capacity | 50 kVA / 50 kW at unity power factor |
| Rated Supply | 415 V AC, 3 Phase, 4 Wire, 50 Hz |
| Load Control | PLC controlled through HMI touch screen |
| Load Switching | 12 independently controlled load contactors / stages |
| Load-step Allocation | As per final approved unit configuration |
| Power Measurement | Modbus power meter with continuous HMI display |
| Operating Modes | Manual, Automatic, Automatic Load Selection, Automatic Load Sequence, Load Cycling, and Endurance Test |
| Cooling | Forced-air cooling with axial fan; bottom air intake and top air exhaust |
| Cooling Interlock | Fan starts before load enable and continues after load removal for heater cooling |
| Safety Devices | Emergency Stop, air-flow switch, temperature sensor, thermostat, electrical protection, and PLC interlocks |
| Communication | PLC-HMI via Ethernet; power meter via Modbus RTU (RS-485); remote Ethernet monitoring optional |
| Data Logging | Configurable sampling interval: 1 sec, 5 sec, 10 sec, 30 sec, or 1 minute |
| Test Reports | CSV / Excel export; PDF where supported by HMI |
| Construction | Heavy-duty industrial powder-coated enclosure with locking castor wheels and lifting eyes |
| Applications | DG sets, UPS systems, transformers, alternators, inverters, and other AC power sources |
Specifications shown are for the 50 kVA automatic resistive model described in our brochure. Load-step allocation is subject to the final approved unit configuration.
