Product Features
Featuring a new, lightweight resistor assembly, the total weight of the unit is kept to under 45 kg; combined with swivel castors, a single person can easily move and set up the test station.
Modular power design with multiple settings, combining fine-tuned low-power settings with high-power settings, enabling both fine adjustments for light loads and the ability to handle heavy loads, whilst offering a high degree of flexibility in adjustment
Integrated measurement, control and display panel; simultaneous acquisition and display of multiple electrical parameters; no need for additional external instruments; a single unit is sufficient to record basic electrical parameters
A forced-air cooling solution with independent air ducts (bottom-in, top-out), providing uniform heat dissipation, preventing localised hotspots and ensuring quiet operation; suitable for long-term testing environments in laboratories and workshops
Comprehensive chain protection logic, featuring three-tier protection comprising high-temperature alerts, overvoltage shutdown and mechanical emergency stop; rapidly disconnects the load in the event of abnormal operating conditions, thereby reducing testing risks
Application Scenarios
Load testing and ageing screening of finished grid-connected and off-grid photovoltaic inverters prior to dispatch
Energy storage PACK, energy storage power converter (PCS) discharge simulation, and load performance calibration testing
Testing the load-carrying capacity of industrial UPS systems and line-frequency emergency power supplies, and testing the backup discharge duration
Reliability testing of samples and baseline testing of electrical performance in the power supply R&D laboratory
Common Questions & Answers
Q1: Can this load cabinet operate continuously for long periods?
A: Yes, the power from all activated gears is combined, allowing any load value within the range to be achieved through customised combinations as required.
Q2: Are the auxiliary power supply and the load input both 220 V AC?
A: Both the main load circuit and the auxiliary power supply are powered by 220 V AC; they are wired independently and can be powered separately.
Q3:Can it be used in workshops with high ambient humidity?
A:A dry, well-ventilated environment is required; damp conditions can accelerate component ageing, and long-term use in high-humidity environments is not recommended.
Q4:Is it possible to connect an external host computer to carry out automated testing?
A:This model is the manually controlled version of the circuit breaker; it has no communication interface and only supports manual switching between positions.
| Product parameters | ||
|---|---|---|
| Model | JH-RYF-15KWA220-W8K | |
| Brand | Jianhong | |
| Dimensions | 600 × 400 × 650 mm (depth × width × height) | |
| weight | ≤45KG | |
| rated voltage |
AC220V |
|
| rated power |
|
|
| accessory power supply | AC220V | |
| power factor | 1 | |
| Resistance accuracy |
±3% (the load box utilises a new type of resistor characterised by high precision, compact size and ultra-lightweight) |
|
| Cold mode |
Forced air cooling, from bottom to top; noise level below 75 dB |
|
| Work environment |
Operating temperature: -10 to 50 °C, dry and well-ventilated |
|
| Local control mode | Circuit Breaker Control | |
| Class of protection | IP20 (Indoor) | |
| display mode |
Can display load voltage, current, active power, reactive power, apparent power and power factor |
|
|
Power settings |
|
|
| Load protection |
High-temperature alarm, overvoltage protection (1.1 times the rated voltage), emergency stop |
|
|
working |
Capable of continuous online operation, 24/7 operation, with a service life of 15 years for the resistor |
|
|
Load input method |
1 set of load outputs (threaded terminals) + 1 set of auxiliary power supply (labelled power socket) | |
|
Mobile mode |
On castors | |
Overall Rating
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