RL Load Bank

GROADA-AC380V-500KW-RL Resistive Inductive load bank

★★★★★
Main Products:
  • AC Load Bank : R / RL / RLC / RCD
  • DC Load Bank : DC5V - 2000V, 0A - 5000A


ModelAC220V-10KVA-RLAC380V-30KVA-RLAC380V-60KVA-RLAC380V-100KVA-RLAC380V-300KVA-RLAC380V-500KVA-RLAC380V-1000KVA-RL
Rated powerRL=10KVARL=30KVARL=60KVARL=100KVARL=300KVARL=500KVARL=1000KVA
R=10KW;L=6KVAR=30KW;L=18KVAR=60KW;L=36KVAR=100KW;L=60KVAR=300KW;L=180KVAR=500KW;L=300KVAR=1000KW;L=600KVA
Input current0-45A0-45A0-90A0-150A0-450A0-750A0-1500A
Size (width * depth * height mm)480*600*277480*600*360500*750*1000600*850*1000700*1000*16501100*1400*17001100*1500*1900
Weight25KG40KG80KG130KG250KG550KG750KG
Minimum loading100W100W100W500W1KW5KW10KW
Other minimum loading power can be customized according to requirements
Input voltageAC220/230VAC380/400V
Other input voltage can be customized according to requirements
power factorPF = 0.8/1.0 (other power factor can be customized according to requirements)
Overall accuracy3% (other accuracy requirements can be customized according to requirements)
Control modeLocal manual/remote host computer (local manual control mode: circuit breaker/button/touch screen three-way optional, other methods can be customized as required)
Remote InterfaceRS232/RS485/USB/RJ45/CAN/GPIB (other interface modes can be customized according to requirements)
Protection functionEmergency stop protection, over-temperature protection, fan load interlock protection, grounding protection (select over-voltage protection, over-current protection, short-circuit protection, fan overload, insufficient air volume)
Working power supplyAC220VAC220V/380VAC380V
Display accuracy0.5 level (other explicit precision can be customized according to requirements)
Display parametersVoltage, current, power, frequency, power factor, etc. (other explicit methods can be customized according to requirements)
Cold sure waySide air inlet and upper air outlet (other air outlet methods can be customized according to requirements)
Protection levelIP20 (other protection level can be customized according to requirements)
Appearance colorRAL7035 (other colors can be customized according to requirements)
Working temperature-10 ℃ ~ 55 ℃
Relative humidity≤95%RH
Altitude≤ 2500 m


AC380V 500kW RL Resistive-Reactive Load Bank

Precision Engineered Load Testing Solution for Reliable Power Performance


Overview

The GROADA AC380V 500kW RL Resistive-Reactive Load Bank is a professional-grade testing system designed to simulate real-world electrical loads for generators, UPS units, transformers, and other AC power systems.
By combining resistive and reactive load elements in a single, compact unit, it provides a complete solution for testing both active and inductive power conditions under controlled environments.

Built for precision, safety, and durability, this RL load bank delivers stable performance during factory testing, commissioning, and routine maintenance of power systems—ensuring your equipment performs reliably when it matters most.


Key Features

1. Combined Resistive and Reactive Loading

  • Total capacity: 500 kW at 380 V AC

  • Integrated resistive and inductive sections for a 0.8 power factor test capability

  • Accurately replicates operational conditions for industrial power systems

  • Smooth load step adjustments with modular switching design

2. Rugged & Reliable Construction

  • Heavy-duty enclosure built for outdoor and industrial environments

  • Vertical hot-air exhaust for efficient heat dissipation

  • High-grade resistor elements ensure low temperature rise and long life

  • Powder-coated housing with corrosion-resistant protection

3. Advanced Safety & Control Systems

  • Equipped with over-temperature, overcurrent, and short-circuit protection

  • Real-time monitoring of current, voltage, frequency, and power factor

  • Available with manual or remote control operation via RS485 or Ethernet interface

  • Emergency stop and automatic cooling fan control for enhanced operator safety

4. Modular Design for Easy Maintenance

  • Front-access layout allows quick service and resistor replacement

  • Detachable sections for transportation and installation flexibility

  • Optional trailer-mounted version for mobile testing applications


Applications

The RL Series 500kW load bank is ideal for a wide range of power validation tasks:

  • Generator testing during commissioning and periodic maintenance

  • UPS and inverter testing under full or variable load conditions

  • Switchgear and transformer performance verification

  • Power plant, data center, and microgrid simulations

  • R&D laboratories requiring accurate power factor and dynamic load testing

This model is commonly deployed by EPC contractors, generator manufacturers, testing service providers, and facility maintenance teams worldwide.


Technical Specifications

ParameterSpecificationDescription
Rated VoltageAC 380 V, 3 PhaseCompatible with 50/60 Hz systems
Rated Power500 kW (Resistive + Reactive)Total combined capacity
Power Factor0.8 LagSimulates real-world inductive loads
Load Step ResolutionConfigurableFine step loading for flexibility
CoolingForced air, vertical exhaustEfficient thermal management
Control ModeManual / RemoteLocal panel or RS485/Ethernet
ProtectionOver-temp, overcurrent, short-circuitFull safety integration
EnclosureOutdoor-rated, IP protection optionalIndustrial-grade design
MobilityFixed or trailer-mountedOptional mobile configuration

Benefits of GROADA Load Banks

  • Accurate Power Simulation: High precision in both resistive and reactive load performance.

  • Operational Safety: Multiple protection layers and thermal safeguards.

  • Ease of Integration: Compatible with SCADA, PLC, and data acquisition systems.

  • Global Engineering Standards: Built to meet CE, ISO, and relevant international test norms.

  • Trusted by Industry Professionals: Proven in continuous operation across data centers, factories, and testing laboratories worldwide.


Industry Insights

The demand for high-performance load banks continues to grow globally.
According to industry reports (Fortune Business Insights, Spherical Insights, Coherent Market Reports):

  • The global load bank market is projected to reach USD 387 million by 2032, growing at a CAGR of 3.7%.

  • The resistive load bank segment alone is expected to surpass USD 168 million by 2033, driven by the expansion of data centers, renewable energy systems, and backup power infrastructure.

  • Key growth regions include North America, Europe, and Southeast Asia, where power reliability and testing standards are becoming increasingly stringent.

By integrating advanced testing equipment like GROADA’s RL Series, companies ensure compliance with modern performance and safety benchmarks—reducing downtime and optimizing asset reliability.


Why Choose GROADA

With over a decade of expertise in load testing equipment manufacturing, GROADA has become a trusted partner to power solution providers across the globe.
Our engineering excellence, commitment to quality, and customer-centric support make us a preferred choice for load banks in industrial, utility, and commercial sectors.

Key Strengths:

  • In-house R&D and custom design capability

  • Certified production facilities with strict quality control

  • Global after-sales and technical service network

  • Proven performance in over 40 international markets


Order Information & Support

For configuration details, optional accessories, or customization requests, our technical sales engineers are ready to assist.
We provide detailed datasheets, installation guidance, and calibration certification for each unit.

Standard delivery includes:

  • Load bank unit (resistive + reactive)

  • Cooling and control systems

  • Operation manual & warranty documentation

  • Optional: Remote control kit / Mobile trailer / Spare resistor sets

Warranty: 12 months standard, extended service packages available.
Support: Online technical assistance and on-site maintenance upon request.

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