Ws AC load includes single-phase AC load, three-phase AC load, RL resistive load, RLC resistive capacitive load, RCD nonlinear load and other series. Products are widely used in various fields
Daily maintenance test, engineering acceptance, delivery inspection test and product aging of switching power supply, medium frequency aviation power supply and inverter.
It can simulate the test process of starting characteristics, stability characteristics, transient characteristics and output parameters of pure resistive, inductive, capacitive and mixed loads, and detect the stability of AC power supply when connected to different loads
Performance. The optimized subsection type is adopted for power input to meet the needs of different loads and different power factors.
Function introduction:
1. During the project acceptance of newly installed UPS equipment and generator set equipment, check whether the output power of ups and generator set equipment can meet the design requirements.
2. Routine maintenance and inspection of power supply equipment.
3. The user can set and adjust the discharge power, set the discharge time and timing time to automatically turn off the load according to the performance parameters and detection requirements.
4. The load power factor can be set to ± 0.3 ~ 1.0（ Resistive load and resistive capacitive load (optional)
5. RS485 communication interface and Modbus RTU standard communication protocol are configured for system integration.
4. After loading, the voltage, current, active power, reactive power, apparent power, power factor, frequency and other parameters of the equipment to be tested can be measured.
5. By controlling the load through computer software, automatic testing can be realized, and the test data can be displayed, recorded and managed（ (optional)
6. The test data can be saved in the software database, the historical test data can be queried at any time, exported to excel and other general format files, and printing is supported（ Optional).
7. The load has multiple protection functions such as overvoltage, overcurrent, overheating and fan abnormality. It can be unloaded automatically in case of danger. It can also be unloaded forcibly through manual emergency stop switch（ (optional)
Application fields:
Test the output power and load capacity of AC charging pile ups, generator set, AC power supply, microgrid, inverter and other AC equipment.
Product selection table:
Product name | Ws-8700 series - RLC AC load |
model | WS-8710E | WS-8730E | WS-8750E | WS-87100E | WS-87300E |
Main technical indexes of load box |
Rated voltage | AC 220V | AC380V/220V Three phase four wire |
Rated power | resistance10KW | resistance30KW | resistance50KW | resistance100KW | resistance300KW |
inductance10Kvar | inductance30Kvar | inductance50Kvar | inductance100Kvar | inductance300Kvar |
capacitance10Kvar | capacitance30Kvar | capacitance50Kvar | capacitance100Kvar | capacitance300Kvar |
Maximum current | 45A | 45A | 75A | 151A | 454A |
Rated frequency | 50Hz | 50Hz | 50Hz | 50Hz | 50Hz |
Load properties | Resistive inductive capacitive integration |
PF±0.3~1.0 |
Minimum step | 0.1Kva | 0.1Kva | 1Kva | 1Kva | 1Kva |
accuracy | ≤1%F.S. | ≤1%F.S. | ≤1%F.S. | ≤1%F.S. | ≤1%F.S. |
control mode | Manual | Manual | Manual | Manual | Manual |
Panel layout |
power switch
Power regulating switch
Digital display instrument
Buzzer
Emergency stop switch
|
power switch
Power regulating switch
Digital display instrument
Buzzer
Emergency stop switch
|
power switch
Power regulating switch
Digital display instrument
Buzzer
Emergency stop switch
|
power switch
Power regulating switch
Digital display instrument
Buzzer
Emergency stop switch
|
power switch
Power regulating switch
Digital display instrument
Buzzer
Emergency stop switch
|
|
|
|
|
Data monitoring | Current, voltage, apparent power, active power, reactive power, power factor, frequency |
Voltage resolution | ≤1%F.S. |
Current resolution | ≤1%F.S. |
Protection function |
Short circuit protection of working power supply
Load overvoltage protection
Fan interlock protection
Fan fault protection
Overtemperature protection
PLC fault protection (programmable)
Instrument fault protection (programmable)
|
Heat dissipation mode | Forced air cooling |
Working power supply | AC 220V 50Hz | AC 380V 50Hz |
Installation mode | Indoor, mobile vertical cabinet type, with universal casters at the bottom |
Overall dimension | 1200-620-700
Height * width * depth mm | 1700-850-1100高Height * width * depth mm | 1900-1100-1200
Height * width * depth mm | 1900-1100-1350 Height * width * depth mm | 2200-1300-1650 Height * width * depth mm |
Equipment weight | 150kg | 350kg | 450kg | 650kg | 1100kg |
Appearance color | Ral9003 white |
