About Industrial Rectfiers Engineering Center

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Industrial Rectifiers products

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 For METRO Traction substations

Technical Specifications:

Type of rectifier: silicon diode

Configuration: 2 × parallel three Phase Bridge (12 pulses)

Type of installation: indoor

Enclosure degree: IP 31

Method of cooling: AN

Output voltage: up to 3000 V DC

Rate Power: up to 4500 KW

Rate current: up to 5000 A DC

Standard: IEC 146 class VI

Max. ambient temperature: 40

Main Parts:

Diode bridge

Terminal Box of auxiliary connections

Complete diode module (Diode heat sink & RC circuit)

Control box of the rectifier

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Oil, Gas and Chemical Industries: Pumps, Compressors, Extruders, Mixers and Blowers

Cement, Mining and Minerals Industries: Conveyors, Crushers, Mills, Mine Hoists, Fans and Pumps

Power Generation Industry: Fans, Pumps, Conveyors and Coal Mills

Water and Wastewater Industry: Pumps

Transportation Industry: Traction Electro motors of Metro, Trains and Ships

Metals Industries: Fans and Pumps

Pulp and Paper Industries: Fans, Pumps, Refiners, Vacuum Pumps and Chippers

Other Applications: Test Stands and Wind Tunnels

Key Features:

Compatible with old and new electric motors, Modular design and high reliability, Low Harmonic  Distortion at input current and output voltage, Five level inverter, 24 pulse rectifier, Industrial HMI and communication, Compact design


Technical Specifications

Input Supply: 4.16 to 20 kV - 50/60 Hz

Output Voltage: 3.3, 4.16, 6, 6.6 kV

Output Frequency: Up to 120 Hz

Output Power: Up to 10MW

Efficiency: Around 97%

Power Factor: Around 97%

Duty Cycle: Continuous

Cooling Method: Forced Air Cooled/ Water Cooled

Operating Temperature: 1 to 40 °C

Protection Class: IP21 to IP42

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High Current Transformer Rectifier

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 HVDC Power supply for vacuum coating


Fine and homogeneous coating

Production unalloyed material


Technical Specifications

Input voltage: 380 V/50 Hz/ 3 Ph

Output voltage: 0-30 kV DC/ 0-4 ADC

Type of control: By PLC adjusting voltage and current and process

Cooling: air cold, oil cold (ANAN, ONAN)

Duty cycle: continues

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High Voltage Transformer Rectifier


Electrostatic Precipitators

Vacuum Coating


Technical Specifications

Input voltage: 380kV/ 50 Hz/ 60 Hz

Phase: single Phase

Apparent Power: 10kA-350kVA

No load Peak voltage: 30kV up to 140kV DC

Impedance voltage: (30 + 5)%

Output current: 200 - 2500 mA

Protected by DMCR relay

Hermetic case

Oil immersed type

Microprocessor based controller

HV/LV control cabinets

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Multiply Voltage Power Supply (HVDC)


Research Physics lab

Hipot tests

Technical Specifications

Input voltage: 220V/ 50 Hz/ 60 Hz / 1 or 3 Ph

Output voltage: 0-200 kV DC/ 0-10 mA

Type of control: adjustable & stabilizer voltage

Cooling: dry type

Duty cycle: continues

% Ripple: less than 1%


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Dry type Transformers


Drilling rigs


Motor – drives



Furnaces, welding, & high current applications …

Technical Specifications

Input voltage: up to 1000V/50 Hz/ 1 or 3 Ph

Output voltage: up to 1000 V/50 Hz/ 1 or 3 Ph

Rating Power: 2.5 kVA- 3.5 MVA

Conductor Type: copper & Aluminum

Single/three phases

Buck & Boost (one/three phases)

Auto Transformers

Type of control: adjustable & stabilizer voltage

Cooling: dry type

Duty cycle: continues

% Ripple: less than 1%



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Electroplating DC power supplies


Creating additive metallic surface on the metals for increasing their period of life, protection aims and improving physical and chemical characteristics

Technical Specifications

Input voltage: up to 20 kV/ 50 Hz / 1 or 3 Ph

Output current: up to 20 kA DC

Output voltage: up to 500 V DC


Auto/manual control of output voltage & current

Electronic control by microprocessors

Standard port for connection to computer

Suitable for industrial and laboratorial environment


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special transformers center provides the engineering services to the satisfaction of the employers as follows:

  • Installation services for all products include industrial transformers and special power supplies
  • Providing Guarantee service and warranty after sale of all manufactured products
  • Provides specialized services in the field of the installation of various types of Transformers & Rectifiers made by other Foreign Manufacturers
  • Updating, optimizing and rebuilding all types of Transformers & Rectifiers made by other Foreign Manufacturers