AC Load Banks
Validate your electrical load test
Rata's AC Load Banks to be used as dummy loads for performance tests of generators, UPS, voltage regulators, transformers and alternators to ensure the equipment's quality. Ensuring your systems are fit for purpose demands thorough testing, whether you're putting new generators into service or performing scheduled maintenance. It's equally important to operate backup generators regularly to clear unburned fuel, oil, and condensation residues.
Canopy design LV AC outdoor resistive load bank (Si-board series)
| Power ranges | 100-1400 kW. |
| Testing voltages | 3P4W380/400/415/480/690Vac quick connector |
| Load resolution | 1kW/5kW customizable |
| Frequency | 50/60Hz. |
| Control voltageLoad switch | 3P5W380/400/415/480/690Vac quick connector |
| Air volume | 3 poles contactors |
| Control method | ≥75CBM/kW |
| IP Grade | Local push buttons(or HMl screen)+ remote PC control |
| Portability | IP54 |
| Housing materialAir direction | Castors and folklift pocketsCold rolled steel |
| Operation temp | Horizontal |
| Altidude | -25°C to +50°C |
| Protection | ≤2000 m.a.s.l |
| Low air pressure cut out | |
| Fan overload protection | |
| Thermal emergency cut outEmergency stop |
* Capacity less than 1Mw. Quick connectors applied in mains power connection. Capcity more than 1Mw. copper busbars applied in mains connection.
* Capacity less than 1MW. Both castors and folklift pockets applied . More than 1MW capacity both foklift pockets & lifting eyes applied.
Canopy design AC resistive load bank
| Model | Power capacity | Dimension(L*W*H)mm | Weight(kgs) |
| SILV-100L | 100kW | 940*790*640 | 180 |
| SILV-150L | 150kW | 1200*815*718 | 240 |
| SILV-200L | 200kW | 1200*815*718 | 350 |
| SILV-300L | 300kW | 1200*850*800 | 450 |
| SILV-400L | 400kW | 1235*965*890 | 600 |
| SILV-500L | 500kW | 1400*1065*950 | 700 |
| SILVI-600L | 600kW | 1410*1100*1020 | 900 |
| SILV-800L | 800kW | 1425*1300*1180 | 1000 |
| SILV-1000L | 1000kW | 1690*1000*1640 | 1450 |
| SILV-1200L | 1200kW | 1720*1050*1680 | 1800 |
| SILV-1400L | 1400kW | 1400*1730*1750 | 2200 |
General Structure
• Options of quick connector: 100A / 200A/ 400A
• Enclosure color: RAL7046
• Enclosure sheet thickness: 1.2mm
• Painting: Powder coated
• Exhaust louvers: 304 stainless steel
Main components
Local control panel (500kW example)
Working principle
• A) AC resistive load bank is conbined by enclosure , resistors and various components.
• It contains 2 electrical circuits which is main input circuit & auxiliary controlcircuit.(The blowers are under control circuit.)
• The load steps are in parallel connection, and controlled by 3 pole contactors.
Our range of AC Load Bank
Canopy design LV AC outdoor resistive load bank(Si-board series)
Software for remote control
• Load Control
1) Manual and automatic switching of load steps (resistive,reactive, or combined)
2) Percentage-based loading (e.g., apply 25%,50%,75%,100%).
3) Abilityito create custom load profiles (ramp-up, stepchanges, cyclic load, etc.).
• Cooling System Control
• Protection & Safety
1) Over-temperature alarm & automatic load disconnection.
2) Emergency stop integration.
3) Voltage, current, frequency, and power limit protections.
4) Real-time display of V, A, kW, KVAR, KVA, PF. Hz./ Datalogging for trend analysis. /Multiple phase measurement一(Phase A/B/C + Neutral).
• Visualization
Curves & charts: load profile, voltagefrequency stability, temperature rise. Dashboard with gauges/meters for live values.Export graphs for reports (Excel, PDF, CSV).
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