JUNXY-AC380V-300KW-R Resistive AC Load Bank

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What is the pure resistive AC & DC load bank?

Load bank applications:

JUNXY series pure resistive load bank is a safe and simple way to provide loading test, commissioning test, aging test, acceptance test for UPS, generator, AC voltage regulator, transformer, PV inverter, EV charger, AC & DC converter, battery bank, rectifier, energy storage system, PDU & many more AC & DC source. Such AC & DC source must be load bank commissioning verified before they could be used for the entire backup power system, make sure the backup power system runs perfectly in case of any downtime.

Load bank types:

The pure resistive load bank includes 2 load types regarding its load voltage types: pure resistive 1phase & 3phase AC load bank & pure resistive DC load bank. Vertical cooling load bank or horizontal cooling load bank, outdoor type load bank and indoor type load bank designed according to the test site condition.

Load bank functions & protections:

The pure resistive AC load bank outputs active load power only without the reactive power, The pure resistive AC load bank is capable to go by 3phase balance & unbalance loading test which meets clients’ different testing purpose. Load bank full power on/off is also a key function to test the power source on/off heavy load capability.

The pure resistive AC load bank digital meter testing each phase voltage, current, active power, power factor, reactive power & apparent power. The load bank load voltage & load current detected by the digital meter, and if the voltage & current exceed the preset value, the load bank digital meter will convert its NO contact to NC contact, activate the protection diagram, indicate over voltage/current alarm & protection with load removed automatically. A temperature sensor is also needed in case of load bank over temperature loading, to make sure the control system contactor, PLC, relay and its conducting wires always working in a good temperature condition.

It is very important to make sure fan always work normally to cool huge heat during loading test, so a digital meter to detect fan working voltage & current is needed. Alarm & load removed protection activated as soon as load bank fan low current and over voltage running.

Load bank fuse and circuit breaker protection is also essential for each load step, could provide the over current protection if any short circuit happens

Load bank control modes

The load bank has 2 control modes: either by local panel control or PC software remote control, 2 modes interlocked. The load bank communication by RS232, RS485, LAN, CAN. JUNXY series AC/DC load bank remote control communication protocol would be provided for clients’ integrating the load bank into the ATE system.

Technical Specifications
Model JUNXY-AC380V-300KW-R
Resistive AC Load Bank
Load
Element
Alloy
resistors
Load Voltage AC380V 3 Phase 4
Wire

AC220V
single phase

Load Power 300KW for
AC380V 3 Phase 4 Wire
Load Steps

@AC380V

16 Load
Steps (three phase controlled):

0.1, 0.2,
0.2, 0.5, 1, 2, 2, 4, 10, 20, 20, 40, 50, 50, 50, 50

(100W-300KW
adjustable)

Power Factor PF=1
Load
Accuracy
±5%
Digital
Meter
Voltage, Current, Power, Frequency and etc.
Power Supply 220V 50Hz,
single phase
Control Mode Manual control by push button
Wire
Connections
Copper bus
bar for wire connections
Insulation
Class
F
Protection
Level
IP20(indoor
use)
Fan Noise 75dB
Cooling Mode Force-air cooling
Work Mode Continuous
work
Protections Overheating/buzzer alarm, overheating/over
voltage protection, emergency stop button
Ambient Temperature -10℃~+50℃
Dimension 1200*1370*1600mm
Weight Around 470KG
Mobility Four wheels,
lifting rings in chassis top
Humidity ≤95%
Altitude ≤2500 meters