Ws-erd series DC feedback load

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Product Description:

The production and maintenance of DC charging pile, charging module, high-power power supply, battery, generator set and various electric power products all need to use high current discharge. Ws-6700 series DC load box solves the maintenance problem in DC power generation system, improves the safety and reliability of communication power supply and greatly reduces communication accidents, The long-term economic and social value created is immeasurable.

Function introduction:

1. Daily maintenance and routine inspection of DC charging pile, battery and switching power supply equipment.

2. The test data of important parameters such as power, voltage and current are clear at a glance.

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. It has constant current discharge function (optional).

5. Multiple parts can be discharged in parallel to adapt to the occasion of high current discharge.

Application fields:

It is mainly used in DC charging pile, charging module, high-power charger, battery module pack, power supply and other wide voltage and high DC output power products

Aging test.

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Ws-erd series DC feedback load

Product name

DC feedback load

model

WS-ERD-060T

WS-ERD-120T

WS-ERD-240T

Main technical indexes of load box

DC input voltage range

DC200V~DC1000V

DC200V~DC1000V

DC200V~DC1000V

Rated power

60KW

120KW

240KW

Maximum current

300A

300A

300A

AC output voltage

380 VAC (three-phase line voltage) 50Hz, connected in parallel with the mains, and the output is equipped with an isolation transformer

380 VAC (three-phase line voltage) 50Hz, connected in parallel with the mains, and the output is equipped with an isolation transformer

80 VAC (three-phase line voltage) 50Hz, connected in parallel with the mains, and the output is equipped with an isolation transformer

efficiency

Full load ≥ 85%

Full load ≥ 85%

Full load ≥ 85%

Adjustment accuracy

0.1A

0.1A

0.1A

control mode

automatic

automatic

automatic

Panel layout

Power switch / color touch screen / buzzer / emergency stop switch

Power switch / color touch screen / buzzer / emergency stop switch

Power switch / color touch screen / buzzer / emergency stop switch

Load mode

< constant power > < constant current >

< constant power > < constant current >

< constant power > < constant current >

Data monitoring

Voltage, current and power

Voltage, current and power

Voltage, current and power

Voltage resolution

0.1V

0.1V

0.1V

Current resolution

0.1A

0.1A

0.1A

Power Resolution

0.1KW

0.1KW

0.1KW

Protection function

Working power short circuit protection / input / output short circuit protection

Load overvoltage / undervoltage protection / overtemperature protection

Fan interlock protection / fan fault protection

Working power short circuit protection / input / output short circuit protection

Load overvoltage / undervoltage protection / overtemperature protection

Fan interlock protection / fan fault protection

Working power short circuit protection / input / output short circuit protection

Load overvoltage / undervoltage protection / overtemperature protection

Fan interlock protection / fan fault protection

Heat dissipation mode

Forced air cooling

Forced air cooling

Forced air cooling

Exhaust direction

Bottom air inlet, top air outlet

Bottom air inlet, top air outlet

Bottom air inlet, top air outlet

Working power supply

AC 220V   50Hz

AC 220V   50Hz

AC 220V   50Hz

Withstａnd voltage level

AC 3000V/50HZ   No breakdown in 1 minute

AC 3000V/50HZ   No breakdown in 1 minute

AC 3000V/50HZ   No breakdown in 1 minute

ambient temperature

-10℃~55℃

-10℃~55℃

-10℃~55℃

Installation mode

Indoor, vertical cabinet type, with universal casters at the bottom

Indoor, vertical cabinet type, with universal casters at the bottom

Indoor, vertical cabinet type, with universal casters at the bottom

Overall dimension

1300-620-700mm(height * width * depth)

1800-600-800mm(height * width * depth)

2200-1000-1200mm(height * width * depth)

Equipment weight

55kg

250kg

250kg

Appearance color

Ral9003 white

Ral9003 white

Ral9003 white