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. The products are widely used in daily maintenance test, engineering acceptance, factory inspection test and product aging of all kinds 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 performance of AC power supply when connected to different loads. 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 name

Ws-8800 series nonlinear load

model

WS-8810E

WS-8850E

WS-88100

WS-88300

         Main technical indexes of load box

Rated voltage

AC220V 50HZ

AC380V/220V 50HZ

AC380V/220V 50HZ

AC380V/220V 50HZ

Power factor

0.7-0.8/1.0

0.7-0.8

0.7-0.8

0.7-0.8

Peak factor

2-3

2-3

2-3

2-3

Rated power

10KVA

50KVA

100KVA

300KVA

Minimum step

0.1KVA

0.1KVA

1KVA

1KVA

accuracy

≤1%F.S.

≤1%F.S.

≤1%F.S.

≤1%F.S.

control mode

Manual

Manual

Manual

Programmable

Manual

Programmable

Panel layout

power switch

Power regulating switch

Digital display instrument

Buzzer

power switch

Power regulating switch

Digital display instrument

Buzzer

power switch

Power regulating switch

Digital display instrument

Buzzer

power switch

10 Inch Touch Screen

Local / remote transfer switch

Buzzer

Emergency stop switch

RS485 communication interface

power switch

Power regulating switch

Digital display instrument

Buzzer

power switch

10 Inch Touch Screen

Local / remote transfer switch

Buzzer

Emergency stop switch

RS485 communication interface

Communication protocol

NA

NA

NA

modbus rtu通訊協(xié)議

NA

modbus rtu通訊協(xié)議

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

Overall dimension

1300-620-700mm
Height * width * depth

1600-700-900mm
Height * width * depth

1900-900-1050mm
Height * width * depth

1900-1100-1200mm
Height * width * depth

Equipment weight

130kg

250kg

450kg

600kg

Appearance color

Ral9003 white