DISTRIBUTION TRANSFORMER

Distribution Transformer (100 kVA to 4,000 kVA) – Integrated Power & Engineering

At Integrated Power & Engineering, we manufacture and supply high-performance Distribution Transformers designed to deliver safe, stable, and efficient power for residential, commercial, and industrial use.

Built with premium-grade materials and modern insulation techniques, our transformers are made to perform reliably in real operating conditions—protecting electrical equipment, maintaining steady voltage, and improving overall network performance, even in demanding environments.

Whether you’re expanding a utility distribution network, powering an industrial facility, connecting solar generation to the grid, or supplying a commercial complex, our distribution transformers are engineered to meet your project needs with long service life and high energy efficiency.

Product Overview

Reliable Power for Every Network

A distribution transformer plays a critical role in stepping down medium voltage (MV) to low voltage (LV) for safe end-user consumption. When designed properly, it reduces technical losses, stabilizes voltage, and ensures continuous operation under changing load conditions.

At Integrated Power & Engineering, every distribution transformer is designed, manufactured, and tested with a focus on reliability, efficiency, and compliance—so utilities and end users can depend on consistent power delivery.

Technical Specifications

Power Rating

  • 100 kVA to 4,000 kVA
  • Custom designs available for special capacity requirements and site conditions

Primary Voltage (HV)

  • 11 kV / 33 kV
  • Custom HV levels available based on utility approval and application needs

Secondary Voltage (LV)

  • 0.415 kV / 0.24 kV
  • Tailored LV configurations available to match project-specific load profiles

Cooling Type

  • ONAN (Oil Natural Air Natural) – standard, efficient passive cooling
  • ONAF (Oil Natural Air Forced) – available for higher load or high ambient temperature applications

Phase Configuration

  • Three-phase (standard) – suitable for most distribution and industrial networks
  • Single-phase (optional) – available for specific network or rural applications

Standards & Compliance

Our distribution transformers are manufactured in accordance with applicable standards and utility requirements, including:

  • IEC standards
  • ANSI standards
  • IS standards
  • Utility-approved technical specifications and guidelines

Key Features & Performance Benefits

Stable Voltage & Load Protection

Our transformers are designed to maintain regulated output voltage under varying load conditions, helping protect downstream equipment such as switchgear, motors, control panels, and sensitive industrial systems from stress and failure.

Built Tough for Long Service Life

Each transformer is constructed with durability in mind:

  • High-grade CRGO magnetic core for reduced losses
  • Copper windings, selected based on design and customer preference
  • Robust tank construction with quality sealing

This ensures reliable operation over many years with minimal maintenance.

Proven Across Multiple Sectors

Our distribution transformers are trusted in:

  • Utility and power distribution networks
  • Commercial buildings and real estate developments
  • Industrial plants and manufacturing facilities
  • Hospitals, universities, and institutional campuses
  • Infrastructure and public service projects

They are suitable for both urban and rural distribution systems.

Energy-Efficient, Low-Loss Design

Lower losses mean lower operating cost. Our transformers are engineered to achieve:

  • Low no-load losses during light or idle operation
  • Low load losses at full capacity

This improves overall system efficiency and reduces lifecycle costs for utilities and end users.

Designed Around Your Project

We don’t believe in one-size-fits-all solutions. Our transformers can be customized for:

  • Voltage class and tap settings
  • KVA rating and impedance levels
  • Copper  windings
  • ONAN or ONAF cooling
  • Renewable energy or industrial load characteristics

If you have a project specification or consultant requirement, we design to match it.

Typical Applications

  • Solar and wind power grid integration
  • Urban and rural power distribution networks
  • Industrial and manufacturing facilities
  • Residential and commercial developments
  • Hospitals, universities, and infrastructure projects

From new substations to power upgrade projects, our distribution transformers are built for secure, continuous, and efficient power delivery.

Why Choose Integrated Power & Engineering?

  • Wide capacity range: 100 kVA to 4,000 kVA
  • Standard and custom MV options: 11 kV / 33 kV
  • Flexible LV outputs: 0.415 kV / 0.24 kV and customized
  • High-efficiency, low-loss designs
  • Durable construction using CRGO core and copper/aluminum windings
  • Compliance with IEC / ANSI / IS standards
  • Custom engineering support for utility, industrial, and renewable projects

What is a distribution transformer used for? +
A distribution transformer steps down medium voltage (such as 11 kV or 33 kV) to low voltage (typically 0.415 kV or 0.24 kV) for safe use by homes, commercial buildings, and industries.
What kVA range do you offer for distribution transformers? +
We supply distribution transformers from 100 kVA up to 4,000 kVA, with custom designs available for special capacity or site requirements.
Which voltage levels are available? +
Standard primary voltages are 11 kV and 33 kV, while secondary voltages commonly include 0.415 kV and 0.24 kV, with customization available based on project needs.
Are your transformers suitable for outdoor installation? +
Yes, our distribution transformers are designed for outdoor operation and can be supplied with robust tanks, weather-resistant paint systems, and sealing suitable for local environmental conditions.
Do you offer low-loss or energy-efficient transformers? +
Yes, our transformers are engineered with low no-load and load losses, helping reduce energy wastage and lower operating costs over the transformer’s lifetime.
What cooling methods are available? +
Standard cooling is ONAN, and ONAF cooling is available for higher load demands or high ambient temperature applications.
Can the transformer be customized for specific projects? +
Absolutely. We customize kVA rating, voltage ratio, impedance, tap settings, winding material (copper or aluminum), and cooling type to match project specifications.
Are your transformers suitable for solar and renewable energy projects? +
Yes, our distribution transformers are widely used in solar and wind energy grid-integration projects, designed to handle variable loads and power flow conditions.
Do you provide technical support in Bangladesh? +
Yes, we provide local engineering support in Bangladesh, including design assistance, documentation, and commissioning guidance.
What standard vector groups are available for your distribution transformers? +
Common vector groups include Dyn11 (most widely used), Dyn5, Yyn0, and Yzn, with other configurations available based on utility or project requirements.
What tapping arrangements are provided on the HV side? +
Standard tapping is ±5% in steps of 2.5% via off-circuit tap changer; customized tap ranges and step sizes can be designed as per utility specification.
What impedance values are typically provided? +
Standard impedance ranges between 4% to 6%, depending on kVA rating and application, with custom impedance available to match system fault levels and coordination requirements.
What insulation class and temperature rise are used? +
Standard insulation is oil-paper (Class A) with temperature rise typically 50°C or 55°C, and higher limits can be provided based on project duty and ambient conditions.
What type of cooling oil is used? +
Standard mineral insulating oil complying with IEC standards is used; biodegradable or ester oils can be supplied on request for environmentally sensitive locations.
Are the transformers suitable for high ambient temperature and tropical climate? +
Yes. Designs consider high ambient temperature, humidity, and dust, with appropriate cooling margins, sealing, and protective coatings for Bangladesh conditions.
What protection and accessories are typically provided? +
Standard accessories include Buchholz relay, oil level indicator, temperature indicators, pressure relief device, earthing terminals, and tap changer, with optional online monitoring systems.

Phone: +880 1713117974, +880 1717180660
E-mail: info@substationequipments.com, faruqipe36@gmail.com.com
Address: 165/7 West Rajashion, Birulia Road, Savar, Dhaka, Bangladesh.

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