250A250V ED Coating Power Supply

250A250V ED Coating Power Supply

1. Application: This is rectifier application of 250A250V ED Coating Power Supply. IGBT modular design, high power factor, high efficiency. 2. Rectifier circuit configuration Type of circuit: modules parallel connection 3. CED Control Process: Customer could set ramp time, holding voltage and...

Product Details

1. Application:

This is rectifier application of 250A250V ED Coating Power Supply. IGBT modular design, high power factor, high efficiency.

150A240V


2. Rectifier circuit configuration

      Type of circuit: modules parallel connection

image

 

3. CED Control Process:

     Customer could set ramp time, holding voltage and hold time based on process, shown below:

image


4. Rectifier specification

Items

Specifications

Rectifier type

IGBT High Frequency Rectifier, Modular Structure, Easy for Maintenance

Working duty

100% 24 hours continuous running

Input

3 phase AC input 340V-440V, 50Hz

Output

DC 250A/250V, could custom design

Mechanical Type

Modular Design

Output Regulation Range

0 ~ 100 %

Soft start time setting

0-999S

Control Mode

Constant voltage mode

Operation mode

Auto(control by PLC through MODBUS RS485 Interface) & Manual(control by control box)

Remote control interface

RS485

HMI

Touch Panel on control box

Cooling

Air Cooling or water cooling optional

Accuracy

≤1 %

Output Ripple(peak-peak)

10%, if need lower ripple, it’s available with extra cost

Corrosion Coating

For Enclosure and main circuit board components

Protections

over heat, over current, voltage limit, short circuit, input over/under voltage protection, IGBT driving protections

Alarm type

Audible and visual alarm

Power recovery

After power resuming the power supply to the rectifier, rectifier switch on immediately and start rising up to set current

IP degree

IP30/IP42

Power Factor

0.94

Efficiency

typical 93% at rated output

High frequency transformer

B

Paint Color

RAL7035


5. IGBT rectifier advantages

1. Same high reliability as SCR rectifier, long time 7 days 24 hours continuous running

2. High conversion efficiency, power saving than SCR rectifier about 8%-10%.

3. Modular design

4. Compact size, modular structure, less size and weight than SCR rectifier, don't need forklift

5. Low pollution to grid, power factor>0.94

6. Not affected by power fluctuation, 100% output, don't need extra capacity

7. Lower cost for the same specification


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