Product Features
1. Multi-step current combination adjustment with support for step stacking; step adjustment accuracy of up to 1 A; flexible load configuration to accommodate a wide range of load testing requirements.
2. Features a built-in forced-air cooling system with unidirectional airflow from right to left, combined with a high-power 150×50 fan, ensuring that temperature rises remain under control during prolonged continuous operation.
3. Integrated multi-layered safety protection, including overheat warning, overvoltage protection and an emergency stop button; the upper voltage limit is set at 1.1 times the rated voltage to mitigate the risk of overload during testing.
4. Dual-channel data is displayed simultaneously, allowing real-time readings of power, current, voltage and apparent power; the test data is presented in an intuitive and easy-to-read format, facilitating on-site recording and verification.
5. The integrated carrying handle and castor design ensures the unit’s weight is manageable, making it easy to move around indoor venues; the terminal block clearly separates the resistance output terminals from the auxiliary power supply connections, ensuring neat and organised wiring.
Application Scenarios
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Testing the ageing and discharge performance of finished Uninterruptible Power Supply (UPS) units to verify output stability under full-load and segmented-load conditions.
-
Charging points and AC power modules undergo load testing prior to leaving the factory to verify their output voltage, current and continuous load-carrying capacity.
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Load testing of the small-scale prototype of the generator set, simulating real-world electrical loads, to investigate issues relating to voltage drop and overheating under load.
- AC-side discharge testing of energy storage converters and inverters, for use in factory quality control and laboratory R&D validation.
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Reliability ageing tests on electrical products such as power adaptors and regulated power supplies.
Common Questions & Answers
Q1: Can several of these load cabinets be used in parallel?
A: This unit supports the stacking of internal current settings for a single unit, but the model itself does not support direct parallel connection of multiple units to increase capacity; if a higher-power load is required, a corresponding high-power model must be selected.
Q2: Can the equipment be used outdoors in the open air?
A: Protection rating IP20; suitable only for dry, well-ventilated indoor environments; must not be used in outdoor settings where it may be exposed to rain or heavy dust.
Q3: Are the auxiliary power supply and the load output part of the same circuit?
A: No, the auxiliary power supply is a separate 220 V AC circuit that powers the equipment’s control system, display and fan; the resistive load circuit is routed separately from the threaded terminals, so the two circuits are distinct.
Q4: Is additional heat dissipation modification required for prolonged continuous operation at full load?
A: The unit comes as standard with factory-fitted directional forced-air cooling, designed for continuous 24/7 operation; however, ensure that there are no obstructions around the cabinet, allow sufficient space for ventilation, and do not block the air inlets and outlets.
Q5: What happens if the input voltage exceeds the rated value?
A: It features built-in overvoltage protection; when the voltage exceeds 1.1 times the rated voltage, the protection is triggered, stopping the current flow to prevent damage to the resistor and internal components.
| Product parameters |
| Model |
JH-RYF-22KWA220-A8A |
| Brand |
Jianhong |
| Dimensions |
≤400*550*770MM (depth × width × height) |
| weight |
≤50KG |
| rated voltage |
AC220V 50HZ
|
| rated power |
22KW
|
| accessory power supply |
AC220V 50HZ |
| power factor |
1 |
| Resistance accuracy |
±3%(Sheet resistor)
|
| Cold mode |
Forced air cooling, from right to left, 15050 fan
|
| Work environment |
Operating temperature: -10 to 50 °C, dry and well-ventilated
|
| Local control mode |
Button controls |
| Class of protection |
IP20 (Indoor) |
| display mode |
Two-channel digital display of power, current, voltage and apparent power
|
|
Current ranges
|
1A, 2A, 2A, 5A, 10A, 10A, 20A, 50A (can be used in combination)
|
|
Stepping accuracy
|
1A
|
| Load protection |
Overheating alarm, overvoltage protection (maximum voltage is 1.1 times the rated voltage), emergency stop
|
|
working
|
Capable of continuous online operation, 24/7 operation, 1-year warranty
|
|
Load input method
|
A set of resistor terminals: threaded terminals
A set of auxiliary power supply terminals: standard sockets |
|
Mobile mode
|
Handle + castors |
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