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Product Description:
The production and maintenance of charging pile, high-power power supply, generator set and various electric power products all need to use large current discharge. Usually, a large amount of energy is consumed due to the use of resistive load, which improves the production cost and precision, which is difficult to guarantee. Therefore, the energy fed load adopts DC to reverse into AC and feed back to the power grid, so as to save energy. At present, most products adopt analog circuit design, which can not realize the adjustable voltage and current. This product adopts the design of the combination of single chip microcomputer and power electronics to realize energy feedback, and realize the adjustable voltage and current.
Function introduction:
1. Daily maintenance and routine inspection of charging pile equipment.
2. The test data of power, voltage, current and other important parameters 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. Simulate traditional linear load
5. Electric energy feedback, return the consumed energy to the power grid, save the power cost, and the feedback rate is more than 85%.
6. Multiple parts can be discharged in parallel to adapt to the occasion of high current discharge.
Product advantages:
1. Energy saving and environmental protection, energy feedback rate of more than 85%
2. Low heating, safe and reliable
3. Automatic operation
4. Support RS485 communication, Modbus RTU standard protocol
Application fields:
It is mainly used for aging test of charging pile, high-power power supply, generator and inverter.
Product selection table:
Product name | Ws-6800 series - AC feedback load | |
model | WS-6809A | WS-6850A |
Main technical indexes of load box | ||
input voltage | AC220V | AC 380V / 220V three-phase four wire system |
Voltage range | Phase voltage 176 ~ 264 VAC @ 99% rated power; | Phase voltage 176 ~ 264 VAC @ 99% rated power; |
Rated power | 9KW | 50KW(single / three-phase compatible) |
Maximum current | 41A | Three phase mode 75A, single phase mode 227a |
Rated frequency | 50Hz | 50Hz |
Power factor | Full load state ≥ 0.99 | Full load state ≥ 0.99 |
AC output | 380 VAC(three phase line voltage) 50HZ， Parallel connection with mains Install isolation transformer for output | 380 VAC (three-phase line voltage) 50Hz, parallel with mains power Install isolation transformer for output |
efficiency | Full load ≥ 85% | Full load ≥ 85% |
Adjustment accuracy | 0.1KW | 0.1KW |
control mode | automatic | automatic |
Panel layout | 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 > |
Data monitoring | < constant power > < constant current > | Three phase current, three-phase voltage, three-phase power, total power |
Voltage resolution | ≤1%F.S. | ≤1%F.S. |
Current resolution | ≤1%F.S. | ≤1%F.S. |
Protection function | Short circuit protection of working power supply Input / output short circuit protection Load overvoltage protection Fan interlock protection Fan fault protection Overtemperature protection | Short circuit protection of working power supply Input / output short circuit protection Load overvoltage protection Fan interlock protection Fan fault protection Overtemperature protection |
Heat dissipation mode | Forced air cooling | Forced air cooling |
ambient temperature | -10℃~55℃ | -10℃~55℃ |
Installation mode | Indoor, mobile vertical cabinet type, with universal casters at the bottom | Indoor, mobile vertical cabinet type, with universal casters at the bottom |
Installation mode | 1200-620-700mmHeight * width * depth | 1450-700-900mmHeight * width * depth |
Equipment weight | 55kg | 250kg |
Appearance color | Appearance color | Ral9003 white |
