High voltage SCR controlled power supplies consist of a SCR controller on the 480 VAC three phase input power lines. The three phase power transformer is used to step up the secondary voltage so that after rectification the desired high voltage DC output is achieved. Each diode in the rectifier circuit consists of multiple diodes in series to increase the overall peak inverse voltage (PIV) of the diodes. The high voltage rectifier section is enclosed inside a fiber glass plenum to offer high voltage protection. Circuit breakers, fuses, voltmeters and ammeters can be added per customer requirements.
The block diagram of the unit is shown below:
The photo of a 2800 VDC, 50 A output high voltage SCR controlled power supply, part number 18574PS is shown below:
High Voltage Power Supply
Specifications:
- High Voltage SCR Controlled Power Supply, P/N 18574PS
- Input: 480 VAC, 3 PH, 60 Hz,
- Output: 0 to 2800 VDC, 45 Amps
- SCR controlled
- Power section enclosed in a floor mount enclosure
- Control section is attached to the power enclosure as shown.
- Manual / PLC switch is provided to switch between Manual mode and PLC mode.
- Voltage control and current limit are provided with manual potentiometers.
- Voltage control and current limit can be adjusted in the 4/20 mA format.
- Output filter is not included.
- Ripple degrade as output is lowered.
- Voltmeter and Ammeter are provided to monitor output.
- START / STOP push button capability provided in the manual mode.
- START / STOP push button capability provided in the remote mode.
- E-Stop provided for emergency power shut off.
- Power on light
- Over temperature protection provided on the rectifier power module.
- With the Remote START / STOP and 4/20 mA interface, the unit is ideal for automatic operation.
CEHCO is a high voltage power supply manufacturer. To discuss your specific requirements, please contact us toll free at (800) 595-7096, or send us an email at info@cehco.com.
No comments:
Post a Comment