22 kW, three-phase, 480 V, high-power adjustable load
Core Features of the Product
High-power stable load, high-precision resistor
Rated three-phase output of 480 V at 22 kW high power, featuring chip resistors with ±3% resistance accuracy and a power factor up to 0.99. The system provides synchronized balanced loading across all phases, ensuring stable load performance without phase imbalance.
Powerful air-cooled cooling for long-lasting continuous operation
Equipped with six 15050 AC220V industrial fans, the air ducts deliver forced air cooling from right to left for high heat dissipation efficiency. It supports 24/7 uninterrupted continuous operation and is designed for prolonged aging test conditions.
Multiple security protections for reliable use
It features a four-tier protection system comprising overheat alarm, 1.1 times rated voltage overvoltage protection, overcurrent protection, and emergency shutdown; with an indoor IP20 protection rating that effectively mitigates risks of overload, overheating, and overvoltage faults.
Power supply configuration is clear and wiring is simple
Main load: three-phase 480 V input; auxiliary control power: AC 220 V, 50 Hz. The load is connected via terminal blocks, while the system power supply uses standard sockets for easy wiring.
Applicable Scenarios
Aging Test for Energy Storage Power Sources and Three-Phase Inverters
480V three-phase energy storage converter, photovoltaic inverter, and high-power UPS subjected to full-load aging tests and power stability testing upon factory delivery
Load test of generator sets and three-phase DC power supplies
Performance testing of small-to-medium three-phase diesel/gasoline generators and high-power three-phase voltage-regulated power supplies under full-load conditions regarding power output, voltage drop, and temperature rise.
Acceptance testing of charging piles and high-power power supply equipment
High-power three-phase DC charging station rated at 480 V; comprehensive factory testing simulating full-load operating conditions for industrial power supplies
Type testing of electrical equipment before it leaves the factory
Temperature rise under continuous load and overload protection function verification for distribution cabinets, terminal blocks, and three-phase power supply modules
Frequently Asked Questions
Q1: Can this load cabinet be loaded phase by phase separately?
A: No. The equipment loads all three phases simultaneously and synchronously, with the three-phase loads outputting together; it cannot independently adjust the load for each phase (A, B, or C).
Q2: Can the system continue operating with a faulty fan?
A: The six 220V cooling fans are critical components for forced air cooling. A damaged fan can rapidly cause resistor overheating, triggering an overheating protection shutdown. If a fan failure is detected, immediately shut down the system, replace the fan, and resume operation.
Q3: Can the load power be adjusted in segments?
A: The system uses circuit breakers to adjust power in segments. By opening and closing circuit breakers at different power levels, adjustable load output within the range of 0–22 kW can be achieved.
Q4: Will the system automatically shut down if the ambient temperature is too high?
A: The maximum operating temperature is 50°C, and the device features overheat protection. An overheat alarm will be triggered in cases of blocked cooling ducts, excessive ambient temperature, or fan failure; in severe cases, the system will automatically disconnect the load protection resistor.
Product Parameters
| Product Parameter |
Specifications |
| model |
JH-RYF-22KWA480-W9K |
| brand |
Jianhong |
| size |
≤400*550*770MM(length * width * height) |
| weight |
≤50KG |
| power rating |
22KW |
| rated voltage |
480 V (three-phase) |
| accessory power supply |
AC220V 50HZ |
| power factor |
0.99 |
| Resistance Precision |
±3%(Sheet resistor) |
| Cold Road |
Forced air cooling, from right to left: 6 15050 fans (operating on 220 V AC power supply). |
| work environment |
Working environment temperature: -10°C to 50°C, dry and well-ventilated |
| Local Control Method |
air switch |
| Remote Control Method |
NO |
| IP grade |
IP20 (Indoor) |
| Load Description |
Three phases loaded simultaneously |
| display mode |
Show power, current, voltage, etc. |
| Load Protection |
Overheat alarm, overvoltage protection (circuit breaker activation at 1.1 times rated voltage), overcurrent protection, emergency stop |
| operate mode |
Available for continuous online operation 24/7 with a 1-year warranty. |
| Load Connection Method |
wiring terminal |
| System Power Supply Wiring Method |
convenienve receptacle |
| Mobile Mode |
Handheld casters |
