Hebei Kaixiang Electrical Technology Co., Ltd. is one of the leading manufacturers and suppliers of ac 400v 500kw resistive load bank in China. If you're going to wholesale bulk advanced ac 400v 500kw resistive load bank, welcome to get pricelist from our factory. All customized products are with high quality and competitive price.
The AC 400V 500kW Resistive Load Bank combines precision load stepping, real-time data acquisition, triple-mode control (local / remote / intelligent), and comprehensive protection functions into a single integrated cabinet. It is the ideal testing solution for mid-range diesel and gas generator sets, UPS systems, inverters, switchgear, and critical power infrastructure in data centers, hospitals, marine vessels, telecom stations and industrial facilities.
Technical Parameters
|
Technical Parameters |
|
|
Rated Voltage /Frequency |
AC three-phase four-wire, AC400V; 50/60Hz; |
|
Max Load Power |
510kW; |
|
Load Step |
Resistive load: divided into 11 gears, Respectively: 1,2,2,5,10,20,20,50,100,100,200kW. 1. When used below the rated voltage, the gear power decreases according to Ohm's law. |
|
Power Factor |
1 |
|
Load Tolerance (each step) |
±5% |
|
Load Tolerance (overall) |
±3% |
|
Display Precision |
0.5 class |
|
Control Power Supply |
external AC three-phase five-wire (L1/L2/L3/N/PE) AC380-400V, 50/60Hz; |
|
Wire Connection |
Load Power Supply Input--Copper bar (Star Connection) Control power supply input--Terminal Block |
|
Communication Interface |
RJ45 |
|
Insulation Class |
F Class |
|
Working Mode |
Continuous Working |
|
Cooling |
Forced air cooling, horizontal inlet and outlet, Air inlet and outlet with louvered frame and plate |
|
Transportation |
With lifting eyes and wheel castors and forklift at bottom. |
|
Casing Color |
Gray 7035 |
|
Dimension |
About 1820mm×1400mm×1190mm (long × wide × High, excluding the height of casters and lifting rings) |
|
Weight |
About 700kg |
|
Operating Environment Parameter |
|
|
Workplace |
Outdoor |
|
Work Temperature |
-20℃～+50℃ |
|
Relative Humidity |
≤95% |
|
Altitude |
≤2500M |
|
Atmospheric Pressure |
86～106kPa |
Product Features
Dual-Mode Control (Local & Intelligent): Offers operational flexibility with local manual control via panel switches and meters, or advanced intelligent control via PC software. A hardware interlock switch ensures that selecting one mode automatically invalidates the other, completely preventing operational clashes.
One-Key Load/Unload: Users can preset the target power and initiate loading with a single master button press. The load bank engages exactly at the preset value, effectively eliminating load fluctuation during power transitions.
Local Digital Metering: The control panel is equipped with instruments displaying real-time 3-phase voltage, 3-phase current, active power, frequency, and working time.
Network Cable Communication: Intelligent control utilizes a direct network cable (Ethernet/RJ45) connection to the PC, offering excellent anti-interference capability and ensuring highly stable system control.
Flexible Load Patterns: Supports both Manual Load (input target power, system loads accordingly) and Automatic Load (user presets multi-stage sequences such as 0%→25%→50%→75%→100%→110% with configurable duration per stage).
Parallel Operation Management: When multiple load banks work in parallel, the software can centrally manage and display parameters for each individual unit as well as the entire parallel system.
High-Speed Data Acquisition: Minimum steady-state data resolving time of 1 second ensures accurate capture of stable-state generator performance.
Product Advantages
Stable & Interference-Proof Communication: Unlike traditional serial connections, the network cable interface provides robust resistance to electromagnetic interference, guaranteeing reliable data transmission and control stability-even in electrically noisy industrial environments.
Generator-Centric Testing: Specifically designed for steady-state load testing of generator sets, accurately capturing and displaying 3-phase voltage, current, active power, frequency, and runtime to verify performance under sustained loads.
Safe & Smooth Operation: The one-key preset-power function prevents sudden power spikes or dips during adjustment, protecting both the load bank and the generator under test.
Rapid Fault Diagnosis: Through software indicator lights, the load bank's working state is visually monitored. If an abnormal shutdown occurs, the system immediately prompts the specific protection trigger reason, drastically reducing troubleshooting time.
Turnkey Reporting: Automated generation of real-time/historical curves (Voltage, Current, Power, Frequency, Power Factor) and tabular data means zero manual compilation-ideal for third-party inspections and compliance submissions.
Scalable Architecture: The extended parallel testing function allows multiple units to be linked, enabling high-capacity testing far beyond a single unit's rated power.
Application Scenarios
Generator Set Commissioning & FAT: Perfect for conducting standardized steady-state step-load tests (0–110%) on diesel/gas generator sets directly on the production floor or at the installation site.
Multi-Unit Parallel Systems: Testing synchronized operation of multiple generator sets or parallel load banks to ensure balanced load sharing across the entire system.
Quality Assurance Labs: R&D departments and testing laboratories requiring high-resolution (1-second) data logging and automated curve generation for power equipment validation.
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