Med Voltage SCR & Rectifier Assy

Medium Voltage SCR &
Rectifier Assemblies
Overview
Powerex is your source for Medium Voltage SCR and rectifier assemblies in a wide range of ratings and configurations.
HV SCR Power Stack
5MW, 24kV SCR based power
section
Designed for low partial discharge
(low corona)
Scalable to other voltage and
current ratings
Air cooled, modular design
Applications
 Motor controls – Medium Voltage converters
SCR power bridges for solid state starters
SCR based input rectifiers
Crowbar systems for motor drives
 Wind power (alternative energy) – Converters available as diodes or SCRs
 Static var compensation
 Resistance heating
 Inductive heating – Input rectifiers
 Load commutated inverter power section for retrofits
Fiber Optic Fan Out Board
 Uninterruptible power supplies – SCR transfer switches and input rectifiers
 Receives SCR gate commands
from external controller
 Fans out command to multiple
level of SCRs
 Receives and processes
feedback from gate boards
 Mining – SCR power bridges, solid state starters and input rectifiers
Gate Power Supply
 Current loop supplies power to all the SCR levels
 Provides excellent voltage
isolation between SCRs and
controls and also provides high
BIL capability
 Power distribution – SCR based switches
 Thyristor controlled reactors
Powerex complements its rectifier products with IGBT assemblies for inverters,
converters, choppers, and full or half wave bridge units. These assemblies can
also be combined to provide a system-wide solution.
HV Fiber Optic SCR Gate Drive Board
 Receives and conditions power from an isolated loop power supply
current transformer, allowing for high voltage isolation
 Provides fiber optic triggering of gates
 Provides fiber optic status feedback for temperature and power
supply health monitoring
®
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Serving Our Customers Through Expertise, Innovation and Reliability
How to Select the Proper Assembly for Your Needs
Areas to consider when selecting the proper assembly.
Application: _____________________________________________
Application: _____________________________________________
Type of circuit:
Type of circuit:
Single phase
Single phase half
phase
Single phase
half
Single
bridge
controlled
bridge
bridge
controlled bridge
Three phase
bridge
Three phase
bridge
Three phase half
controlled bridge
Three phase half
controlled bridge
Single phase full
Single phase
full
controlled
bridge
controlled bridge
Three phase full
controlled bridge
Three phase full
controlled bridge
Power Topology: __________________________________________
Electrical parameters:
parameters:
Electrical
Source MVA: _________________
Maximum continuous output current (amps): _________
Maximum continuous output current (amps): _________
Maximum overload:
Maximum overload:
Output DC current (amps): _________
OutputOverload
DC current
(amps):
__________________
duration
(seconds):
Overload duration (seconds): _________
Input voltage (volts): _________
Input
voltage
(volts):
(V
for single
phase,_________
VAC-RMS line-to-line for three phase)
AC-RMS
(VAC-RMS for single phase, VAC-RMS line-to-line for three phase)
Line frequency:
Line frequency:
 50 Hz or  60 Hz Other _________ Hz
 50 Hz or  60 Hz Other _________ Hz
Environmental
parameters:
Distance to source:
_________________
Distance toambient
load: _________________
Maximum
temperature (°C): _________
Humidity (0-95% non-condensing): _________
Environmental parameters:
Maximum altitude (feet above sea level): _________
Maximum ambient temperature (°C): _________
Humidity (0-95% non-condensing): _________
This information can be submitted online at:
Maximum altitude (feet above sea level): _________
www.pwrx.com/summary/assembly-rectifier.aspx
With this information, Powerex engineers can design the proper assembly
or email your specific parameters to [email protected].
to fit your application needs.
A Powerex engineer will be in contact with you to assist in the design of the proper
assembly to fit your application needs.
®
Lit. Code 247
249 - Rev. 0
1 - 7/28/2014
9/4/2014
For more information:
visit:
visit: http://www.pwrx.com/summary/assembly-rectifier.aspx
http://www.pwrx.com/summary/assembly-rectifier.aspx
email:
email: [email protected]
[email protected]
phone: 724-925-7272,
724-925-7272, Option
Option 33 (Applications
(Applications Engineering
Engineering Assistance)
Assistance)