3600kW resistive load bank bulk buy supplier Rata
Rata's 3600kW resistive load bank is a critical test device designed specifically for large-scale energy storage systems. This load bank has a rated test voltage up to 950 Vac, supports three-phase four-wire (Delta connection) at 50/60Hz, and features a fine load step resolution of 60kW. Its primary function is to simulate real electrical loads during full-power discharge testing of energy storage systems, especially those equipped with PCS power conversion systems, thereby safely and controllably verifying system performance.
5.0
Warranty time:
3 years
ISO Certification:
ISO9001/ISO14001
Brand:
RATA
Factory Price:
Negotiate
Supply Ability:
200,000 Piece/Pieces per Month
Port:
Shanghai and Guangzhou are both available
Payment Terms:
L/C,Cash,Western Union,T/T, Paypal
Min.Order Quantity:
1 pcs
ODM & OEM:
Available
Certification:
CE 60204 Standard
design customization
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Product Introduction
Resistive load bank case study
3600kW 950VAC 50/60Hz.
A 950 VAC, 3600 kW resistive load bank is an essential device for large-scale energy-storage systems, particularly in full-power discharge testing of battery packs，configured with PCS (Power Conversion System). When integrated into the test platform, the load bank simulates real-world electrical consumption and enables operators to
safely verify system performance under controlled and repeatable conditions.
Engineering drawing
Front view
side view
Top view
General view
Details& parts
Load Switch & Protection
Generally choosing Siemens Syrius series LV AC-1 contactors for resistive circuit. AC-4 contactors for reactive circuit. Over current. fuse protection added.
Mains Copper Busbars
At the testing circuit. from the mains connection busbars till the fuse. copper busbars are used to prevent over-heating issues. avoid of high temp. effect.
Industrial Axial Cooling Fans
700mm diameter. 3kW motor with 27000m³/hour air volume to blow resistor blocks 360kW. Ensuring efficient air dissipation.
Air-Exhaust Wind Chimney
10 wind chimney mounted on the top of load bank. to change air direction, meanwhile weatherproof for the load bank container.
Local Control Panel
The control board is assembled with Siemens HMI touch screen, buttons, alarm indicators& Emergency stop. To simplify the operations during load testings.
Resistive Load Element
Finned stainless heating tubular. Ni-chrome resistance core. temperature tolerance @1200℃
Resistors Mounting Process
Considering the voltage is 950Vac. Resistors moutning board are using high voltage insulation and heat-resistant material (Multiple Epoxy board L360). Resistors are serial connected by copper busbars and insulated by heating-shrikable tube.
Main Parameters
| Model No. | 83600L |
| Country of origin | China |
| Rated power capacity(PF 1.0) | 3600 kW |
| Rated testing voltage | 950 Vac |
| Frequency | 50/60Hz. |
| Phases | 3 |
| Wires(Delta connection) | 4 |
| Load step resolution | 60kW |
| Voltage Tolerance (Short Term Operation) | +5% |
| Load Element Tolerance | ≤+2.5% |
| Insulation Test To Earth | 2000 Vdc |
| Load Connections | Copper busbars |
| Protection | Thermal emergency cut out |
| Air flow switch | |
| Fan overload protection | |
| Emergency stop | |
| Control voltage(Auxiliary power supply) | 380Vac (3P5W) 50HZ. |
| Airflow volume(Approx.) | 75m³/kW/H |
| Airflow direction | Vertical upwards air forced cooling |
| Fans Nos. | 10 pcs. (4kW each) |
| Load switching contactor type | AC contactors |
| Rated maximum ambient temp. operation | +50°C / +122°F |
| Rated minimum ambient temp. operation | -20°C / -4°F |
| Altitude rating | ≤2000 [m.a.s.l] or customized |
| Control chamber IP rating | IP 54 outdoor |
| Enclosure material | Containerised carbon steel with marine grade painting. |
| Portability | Standard ISO lifting points |
| Enclosure dimentions | |
| Length(mm) | 5500 |
| Width(mm) | 2200 |
| Height(mm) | 2200 |
| Weight of load bank with wind-shields (KG) | 9,500 Maximum |
| Load bank control system | |
| Manual control | HMI touch screen |
| Remote control | Remote host PC software control |
| Communication | Modbus TCP |
Key details
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FAQ
1
Why does a 950 Vac, 3600 kW resistive load bank be needed for testing large-scale energy storage systems?
Large-scale energy storage systems, especially battery packs equipped with a power conversion system (PCS), require simulating high-voltage, high-power real-world loads during full-power discharge testing. A 950 Vac, 3600 kW resistive load bank provides sufficient voltage and power capacity to safely and controllably verify the maximum output capacity of the energy storage system, the conversion efficiency of the PCS, the discharge performance of the battery pack, and its thermal management capabilities.
2
How does this load bank simulate the real-world load of an energy storage system?
A resistive load bank applies a load to the energy storage system by converting electrical energy into heat. The S3600L features a fine load step resolution of 60 kW, allowing for precise load adjustment to simulate discharge scenarios of the energy storage system under different operating conditions, such as changes in grid demand or the power consumption of specific equipment during operation.
3
What key data does the load bank provide during energy storage system testing?
Through the load bank's control system and remote PC software (supporting Modbus TCP communication), the output voltage, current, power, frequency, and other electrical parameters of the energy storage system can be monitored and recorded in real time. This data is crucial for evaluating the performance of the energy storage system, verifying the PCS control strategy, and analyzing the health status of the battery pack.
4
What is the importance of the load bank's cooling system for energy storage system testing?
During high-power discharge testing, the load bank generates a significant amount of heat. The S3600L employs vertical upward forced air cooling, providing an airflow of 75 m³/h per kilowatt load to ensure stable operation of the load bank itself. This is crucial for long-term energy storage system testing, preventing test interruptions due to load bank overheating, thus ensuring the integrity and reliability of test data.
5
How does the load bank ensure the safety of energy storage system testing?
The S3600L integrates multiple safety protection functions, including thermal emergency cut-off, airflow switch, fan overload protection, and an emergency stop button. These mechanisms can quickly disconnect the load in abnormal situations, preventing equipment damage or personal injury, and providing safety assurance for high-power testing of energy storage systems.
6
How adaptable is the load bank to outdoor environments?
The load bank uses a containerized carbon steel shell and marine-grade paint. The control chamber has an IP54 protection rating, enabling it to withstand harsh outdoor environments. Standard ISO lifting points and a robust structural design facilitate transportation and deployment and testing at outdoor sites such as energy storage power stations.
7
What is the significance of the load bank's 60kW load step resolution for energy storage testing?
The fine 60kW load step resolution allows test engineers to more accurately simulate the response of the energy storage system under different load conditions. This is crucial for evaluating the dynamic response of the PCS, the balancing strategy of the Battery Management System (BMS), and the stability of the energy storage system during grid fluctuations.
8
How does the load bank communicate and control the energy storage system's PCS?
The S3600L supports the Modbus TCP communication protocol, enabling data interaction and control with the energy storage system's PCS or host computer via remote PC software. This allows for automation of the testing process, improving testing efficiency and data acquisition accuracy.
9
How do the voltage tolerance of the load bank and the tolerance of the load components affect the test results?
The voltage tolerance (+5%) and load component tolerance (≤+2.5%) of the load bank ensure that it can stably absorb power and provide an accurate load during testing. This is crucial for accurately evaluating the output characteristics and efficiency of the energy storage system, avoiding distortion of test results due to errors in the load bank itself.
10
Does the load bank support long-term continuous discharge testing?
Yes, the load bank is designed for continuous operation (Duty cycle: Continuous), capable of operating uninterruptedly for extended periods under rated load. This is critical for endurance testing, capacity degradation assessment, and long-term operational stability verification of energy storage systems.
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