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Industrial Rectifier Transformers

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Industrial Rectifier Transformers Specification

Voltage Booster Type
Tap changing under load (OLTC/Off-circuit)

High Voltage
11 kV to 33 kV

Capacity
Up to 5000 kVA

Load Loss
As per IEC/IS standards

Standard
IS 2026 / IEC 60076

Low Voltage
380 V to 690 V

Cooling Type
ONAN/ONAF (Oil Natural Air Natural/Oil Natural Air Forced)

Operating Temperature
-25C to +45C

Coil Material
Electrolytic Copper

Dimension (L*W*H)
3200mm x 1600mm x 2300mm

Rated Voltage
Up to 33 kV

Product Type
Industrial Rectifier Transformer

Material
Copper

Output
Product wise

Frequency (MHz)
50 Hertz (HZ)

Efficiency
99.9%

Phase
Three Phase

Usage
Industrial rectification and DC applications

Coil Structure
Layer wound

Coil Number
Double

Power Scope
100 kVA to 5000 kVA

Weight
3200 kg (for standard models)

Ambient Humidity
95% RH

Insulation Class
Class F / Class H

Overload Capacity
Up to 120% for short duration

Cooling Medium
Mineral Transformer Oil (IS 335/IEC 60296)

Impedance
6% 7%

Expected Life Span
20 years

Terminal Arrangement
Copper bus bar

Service Condition
Indoor / Outdoor

Winding Technique
Multilayer with Interleaved Structure

Paint Type
Epoxy Powder Coated

Mounting Type
Floor mounting

Tap Range
5% in 2.5% steps

Short Circuit Withstand
As per IS/IEC standards

Noise Level
60 dB at 1 meter

Industrial Rectifier Transformers Trade Information

Minimum Order Quantity
1 Unit

Supply Ability
100 Units Per Month

Delivery Time
2-3 Months

About Industrial Rectifier Transformers

Constructed a modern infrastructure base and manufacturing unit, we are engaged in manufacturing and exporting Industrial Rectifier Transformers. Suitable for converting direct current to alternating current, these rectifier transformers are immensely used for different electrical applications. These rectifier transformers are engineered at our well-equipped manufacturing unit using tested quality components & materials. In addition to this, these Industrial Rectifier Transformers are stringently tested in order to deliver flawless range at client's end.

Industrial Rectifier Transformers Features:

Available in different models.
There are more options for free, forced or fan cooling.
Regulated configurations with tight voltage control,
Unregulated configurations for ingenuity and Credibility.
The main features clean input of power with low harmonic distortion.
They have minimum output current ranging up to 10 KA DC with primary voltage up to 33 KV.
Transformer rectifiers are highly efficient and requires minimum maintenance.
Resistant to adverse conditions
Easy installation
Impeccable efficiency

Technical details

Phase	Three Phase
Application of Transformer	Power / Distribution / Furnace etc.
transformers ranges	up to 10 KA DC
voltage	up to 33 KV.
Capacity Of Transformer	kV
Primary Voltage Ratio	kV
Secondary Voltage Ratio	Fremycetin Sulphate B.P. 1% w/w
Type of Transformer	Oil Cooled / Air Cooled VPI or CRT

Precision and Performance for Industrial Applications

These transformers are engineered for environments demanding superior rectification and DC output. With advanced winding techniques, thermal stability, and copper bus bar terminals, users gain unmatched operational reliability. Floor mounting and epoxy-coated bodies guarantee endurance against industrial stresses and harsh outdoor climates.

Adaptable and Customizable Power

With capacities up to 5000 kVA and flexible tap ranges (5% in 2.5% steps), these units match diverse industrial requirements. Options for ONAN/ONAF cooling and OLTC/off-circuit tap changing further elevate their adaptability across various DC-driven operations, ensuring steady power flow and minimized losses.

FAQ's of Industrial Rectifier Transformers:

Q: How does the OLTC (On Load Tap Changer) work in the transformer?

A: The OLTC (On Load Tap Changer) allows adjustment of transformer output voltage without interrupting the supply. This is beneficial in industrial processes requiring continuous voltage regulation, especially under variable load conditions.

Q: What industries benefit most from these rectifier transformers?

A: Industries involved in electrolysis, DC traction, smelting, rolling mills, and chemical manufacturing primarily benefit due to their need for consistent DC power and high load handling. Applications requiring precise voltage control and minimal downtime find these transformers ideal.

Q: When is periodic maintenance needed for optimal transformer performance?

A: Routine maintenance is advised annually or as per the manufacturer's schedule. Key activities include oil quality testing (as per IS 335/IEC 60296), checking terminal integrity, and ensuring insulation and cooling systems operate efficiently.

Q: Where can these transformers be installed?

A: These transformers are suitable for both indoor and outdoor sites. Their epoxy powder-coated enclosures and robust construction provide substantial protection against humidity (up to 95% RH), dust, and temperature fluctuations.

Q: What process is involved in the installation of a floor-mounted transformer?

A: Installation starts with preparing a solid and level foundation. The transformer is then securely positioned using integrated mounting points, followed by connection of high and low voltage terminals via the copper bus bars. All electrical and grounding arrangements are finalised as per safety regulations.

Q: How does the high efficiency of 99.9% benefit industrial users?

A: A 99.9% efficiency translates to minimal energy loss during operation, resulting in substantial savings on electricity, reduced cooling demands, and overall lower lifetime operational costs-critical for large-scale industrial units.

Q: What is the expected service life and under what conditions is it validated?

A: These transformers are designed for a service life of 20 years when operated within specified conditions (ambient temperatures -25C to +45C, up to 95% RH). Adherence to IS/IEC standards in manufacturing ensures reliability throughout their expected lifespan.

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