CAST RESIN TRANSFORMER


Safe, Clean & Reliable Power for Modern Installations

At Integrated Power & Engineering, we provide Cast Resin Transformers for customers who need maximum safety, minimal maintenance, and dependable long-term performance—without the risks associated with oil-filled equipment.

These dry-type transformers are designed to operate reliably in challenging environments such as hospitals, commercial buildings, industrial plants, and renewable energy sites. With no oil, no leakage risk, and no fire hazard, cast resin transformers offer a clean, environmentally friendly solution for modern power distribution in Bangladesh.

Why Cast Resin Transformers?

In many installations, oil-filled transformers are simply not practical—especially where fire safety, indoor installation, or environmental concerns are critical.

Cast resin transformers eliminate these concerns by using vacuum-cast epoxy insulation, allowing them to operate safely in places where oil-filled transformers are restricted or discouraged.

They are quiet, compact, and built to perform reliably even in humid, dusty, or polluted conditions.

Technical Overview

Power Rating

  • 50 kVA to 4,000 kVA

Voltage Levels

  • Primary: Up to 36 kV (commonly 33 kV, 11 kV)
  • Secondary:
    • 11 / 0.415 kV
    • 33 / 11 kV
    • 11 / 0.24 kV
    • 0.365 / 0.24 kV
    • 33 / 0.415 kV

(Custom voltage ratios available based on project requirements)

Frequency

  • 50 Hz (standard in Bangladesh)
  • 60 Hz available on request

Cooling

  • AN (Natural Air Cooling) – standard
  • AF (Forced Air Cooling) – optional for higher load or future capacity expansion

What Makes Our Cast Resin Transformers Stand Out

Safe by Design

  • Oil-free construction—no leakage, no contamination
  • Halogen-free epoxy resin with low fire and smoke emission
  • Self-extinguishing insulation for enhanced fire safety

Minimal Maintenance

  • No oil testing or replacement
  • No filtration or topping-up
  • Only simple visual and periodic inspections required

Built for Harsh Conditions

  • Performs reliably in high humidity, dust, and chemical environments
  • Excellent resistance to moisture-related insulation failure
  • Suitable for indoor installation close to load centers

Strong Insulation & Mechanical Integrity

  • Vacuum-cast epoxy windings ensure uniform insulation
  • High resistance to thermal stress, vibration, and short circuits
  • Reduced risk of partial discharge and insulation breakdown

Long, Reliable Service Life

  • Typical service life exceeds 25 years
  • Designed to withstand thermal cycling and mechanical stress over time

Construction Details You Can Trust

  • Windings: Copper or aluminum, vacuum cast in epoxy resin
  • Core: High-grade grain-oriented silicon steel with step-lap design for low losses and low noise
  • Enclosure (Optional): IP23 to IP54, galvanized or stainless steel
  • Temperature Monitoring: PT100 sensors with optional digital indicators, alarms, or SCADA-ready relays

Where Cast Resin Transformers Are Commonly Used

  • Commercial buildings, hospitals, and hotels
  • Shopping malls and data centers
  • Solar and wind power installations
  • Airports, metro rail, and transport infrastructure
  • Industrial plants with limited space or indoor substations
  • Marine and offshore platforms

If safety, cleanliness, and reliability matter, cast resin transformers are often the best choice.

Optional Add-Ons & Customization

  • Forced air cooling for higher load capability
  • Surge protection devices
  • Intelligent temperature and fault monitoring
  • Custom indoor or outdoor enclosures
  • SCADA-integrated monitoring and control panels

Why Choose Integrated Power & Engineering?

  • Designs based on real site conditions, not assumptions
  • Proven materials and manufacturing quality
  • Strong focus on safety, reliability, and lifecycle performance
  • Local technical support and engineering guidance in Bangladesh
  • Custom solutions for commercial, industrial, and renewable projects

For safe, eco-friendly, and dependable transformer solutions in Bangladesh, choose Integrated Power & Engineering—powering critical systems with confidence, care, and long-term reliability.

What is a Cast Resin Transformer? +
A dry-type transformer with epoxy-cast windings that provides safe, oil-free, and low-maintenance power distribution.
How is it different from an oil-filled transformer? +
It uses no oil, has lower fire risk, needs less maintenance, and is safer for indoor and sensitive installations.
Where are Cast Resin Transformers typically used? +
In hospitals, commercial buildings, data centers, transport projects, industries, and renewable energy plants.
Are Cast Resin Transformers suitable for Bangladesh’s climate? +
Yes, they perform reliably in humid, dusty, and polluted environments common in Bangladesh
What maintenance do they require? +
Only simple periodic inspection and cleaning, with no oil testing or refilling required.
What is the expected service life? +
Typically more than 25 years under normal operating conditions.
Can they handle overload conditions? +
Yes, especially with forced air cooling, they can safely manage short-term overloads.
Does Integrated Power & Engineering provide customized solutions +
Yes, all transformers are engineered to match site conditions, load requirements, and monitoring needs.

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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