Meidensha Transformer For Rectifier

Manufacturer: Meidensha Corporation

Features

It uses optimal design to meet with special overload rating requirements including Classes D, E, and S for electric railway load, and realizes compact and light weight design.
We can meet with various requirements according to the substation layout such as radiator package type, radiator separate installation type, and primary and secondary bushing, cable, and bus duct systems.
Optimal design in combination with rectifier
Flexibly meeting with the layout requirements
Application of insulation method according to installation conditions
High reliability proven by the track records
Supporting various overload ratings (Class E, Class D, Class S)
Supporting 6- and 12-phase rectification
It is possible to support using silicone liquid and palm oil, etc. for the environmental consideration

Applications and Solutions

In DC feeding systems, rectifiers convert AC to DC to power electric trains.
The transformer steps down the voltage to match the input side of this rectifier.

Specifications

Specification example 1

Capacity4380/2x2265kVA
Rated voltage66kV/2x1200V
Type of ratingClass D (100% continuous, 150% for 2 hrs, 300% for 1 min.)
ConnectionΔ-Δ-⅄
Insulation methodOil-immersed natural cooling

Specification example 2

Capacity2160/2x1120kVA
Rated voltage22kV/2x590V
Type of ratingClass D (100% continuous, 150% for 2 hrs, 300% for 1 min.)
ConnectionΔ-⅄-Δ
Insulation methodSelf-cooled type gas insulated

Transformer For Rectifier

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