IMAX3000 series AC load boxes are mainly used for performance testing and aging of online high-power UPS (uninterruptible power supplies) and generator sets in power, telecommunications and other departments and manufacturers. It is an important testing and maintenance equipment for the actual load capacity of the equipment. Its application effectively avoids the economic losses of enterprises caused by the failure of backup units or power supply startup, and also provides a scientific basis for the detection of the load capacity of new units and the engineering acceptance of new batteries.
1. Can meet long-term outdoor use
2. Provide the upper computer operating software
3. RS485, Ethernet, CAN and other communication ports
4. The test steps are programmable, suitable for diesel generator set, gas generator set, anti-reverse power transmission, automatic test
5. Can load any power within the full power range, any power factor, test and display three-phase voltage, current, power, power factor;
6 Power adjustment accuracy: 1kW
7. Use PC data management software to control load loading and load unloading and save test data
Selection | AC braking resistor cabinet | |
IMAX2906 | ||
Test loop | Type | Pure resistance |
Rated voltage | AC1030V-AC100V | |
Wiring | 3P3W | |
Max power | 60kW | |
Max current | 174A | |
PF | 1 | |
Number of circuits | 3P3W | |
Number of incoming circuits | 2 in 1 (with 2 external test sources) | |
Grading | 1030V-60kW-17.7Ω； 700V-60kW-8.2Ω； 400V-60kW-2.7Ω； 100V-30kW-0.34Ω。 | |
Accuracy | ±3% | |
Connection | Copper bar | |
Loop | Voltage | AC220V±10% |
Frequency | 50Hz | |
Connection | 1P2W | |
Power | ＜0.9kW | |
Power supply mode | External power supply | |
Display function | Temperature display, voltage and current display, data reading through communication | |
Loading method | Automatic identification of voltage breaking and automatic loading of load in the braking resistor cabinet | |
Interface | Ethernet/RS485, Modbu RTU protocol. The specific agreement can be modified as required. | |
Control mode | 1. Emergency stop start control: After pressing the emergency stop button, the device will automatically pull the load based on the current voltage; 2. Fan maintenance button: For daily maintenance, manually start the fan and observe if it is working properly; 3. Short circuit start at dry output point: Short circuit start signal at dry output point. The equipment will automatically load according to the current voltage, and can connect to normally open dry contact signals such as smoke alarm and over temperature alarm; 4. Communication control start stop: By writing a start stop signal through communication, the device will automatically load based on the current voltage, and can monitor the current voltage, current, load gear feedback, device status, and other information of the device; 5. Operation priority, emergency stop button operation>dry contact control>remote communication control. | |
Connection | Terminal | |
Box | Way of working | Continuous operation |
Insulation level | F | |
Cooling method | Forced air cooling, front lower and bottom air inlet, top rear air outlet | |
Noise | ≤ 75dB at 1 meter | |
Protection grade | IP54 | |
Colour | RAL7035 | |
Size | W600mm*D1200mm*H2200mm | |
Weight | 340kg | |
Move | There are forklift holes at the bottom of the equipment | |
Protection function | Temperature alarm | The device has a level 2 temperature alarm, where only the buzzer sounds for the level 2 temperature alarm. The buzzer for the level 1 temperature alarm sounds and unloads the load, and outputs a dry node signal to the outside |
Smoke temperature alarm | There is a smoke and temperature detector installed on the top of the cabinet, which can provide smoke alarm and output alarm dry node signals to the outside | |
Short circuit protection | Configure incoming circuit breaker (for live operation) | |
Fan interlocking | Not starting the fan, unable to load | |
Fan phase sequence protection | Built in phase sequence conversion switch, the fan can also start in the normal direction when voltage phase sequence error is detected | |
Fan air volume protection | The device is equipped with a built-in wind pressure switch. When insufficient wind pressure is detected in the fan, the load is stopped and fed back to the upper computer | |
Low-temperature starting | The control room inside the load cabinet is relatively isolated from the outside, and a heater is installed to meet the starting condition of low temperature -20 ℃ | |
Ground protection | In order to avoid the risk of electric shock caused by the casing being damaged during load operation, the braking resistor cabinet is equipped with a dedicated grounding protection terminal | |
Voltage withstand test | Withstand voltage characteristics | Resistance to ground: AC3kV, 50Hz, 1 minute, no breakdown, no flying fox |
Insulation performance | Insulation characteristics | DC1kV, insulation greater than 10M Ω |
1. Marine generator set inspection;
2. Emergency power supply detection;
3. Cable impedance simulation;
4. Switching device life test
5. Inverter and converter testing,
6. Outdoor energy storage test, household energy storage test;
7. Various ATE tests
Specification
| Selection | Three phase AC test load bank | |
IMAX3690 | ||
Test circuit | type | Three-phase AC |
voltage | AC400V 50Hz/60Hz | |
Wiring method | 3P4W | |
frequency | 50Hz | |
maximum power | 90KW | |
PF | 0.8 | |
Step accuracy | 1kW/0.75kVar | |
Load accuracy | ±3% | |
Wiring method | Copper bar | |
control loop | voltage | AC380V±10% |
frequency | 50Hz | |
Wiring method | 3P3W | |
power | ＜2.5kW | |
Power supply method | External power supply | |
Display accuracy | Level 0.5 | |
control mode | Remote software control, contactor switching. | |
communication interface | RS485 | |
Wiring method | Terminal | |
Box | Working mode | Continuous operation，7*24H |
Insulation level | F | |
Cooling method | Forced air cooling, side inlet, side outlet | |
Protection level | IP23 | |
Color | RAL7035，can be customized according to requirements | |
size | W1100mm×D1100mm×H1500mm | |
weight | 500kg | |
Mobile Method | Bottom with casters and top with lifting rings for easy movement | |
Protection function | Emergency stop | It can be manually forced to unload with one click, and cannot be loaded in the emergency stop locked state. |
temperature alarm | When the load temperature exceeds the safety threshold, a load alarm will be triggered. | |
Fan interlocking protection | The fan has not been turned on, and the load cannot be loaded. | |
Fan phase sequence protection | The phase sequence of the fan is connected incorrectly, and the fan can also operate normally. | |
Grounding protection | In order to avoid the risk of electric shock caused by the casing being damaged during load operation, the load cabinet is equipped with a dedicated grounding protection terminal. | |
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