# About Us

## An Introduction

Elporado Energy Private Limited is an ISO 9001:2008 certified manufacturer of Power and Distribution Transformers from 5 KVA to 2500 KVAupto 11-22-33 KV Class, Single & Three Phase, with maximum production capacity of 500 transformer of 200 kVA in a month. Company intends to be one of the renowned Transformer manufacturers with its customer oriented and quality centric approach.

We at ELPORADO Energy offers a wide-ranging product portfolio of reliable high-quality of distribution transformers designed to grant the reliability, durability and efficiency required in utility, industrial and commercial applications. Our Transformers are manufactured in accordance with the most demanding industrial standards.
Elporado Energyhas started with its state-of-the-art manufacturing unit spread over an area of 10000 sq. feet area with highly experienced man force. Company has been meeting specific customer requirements such as single phase/three phase, Copper/Aluminium, Stack core, CRGO core, Dual-Ratio Transformer, OLTC/OCTC or conversion of existing transformer to any voltage ratio. Currently we are supplying to private industries/ commercial establishments. The company has sophisticated machinery to design, manufacture & test transformers upto 2500kVA as per IS-2026, IS-1180, BS-171, IEC-76, CBIP etc. Our quality policy focuses on customer satisfaction by providing quality product backed by prompt after sales service. Our focus is to consistently delight our customers with our value-added products and services.We are committed to enhance customer satisfaction by providing products and services that meet or exceed the needs of quality and delivery at reasonable cost to ensure customer delight.
Our motto is to give our customer the value for the money of the product & life time services.

Our endeavor is to develop and maintain permanent relationship with its customers by providing full satisfaction. To achieve this, we believe in:

- Use of top-quality raw materials in production
- Timely supply of reliable quality products
- Continuous improvement in the products and processes
- Updating skills of its personnel to maintain the motivation and effective team work

Here is what happens through every step of our proprietary manufacturing process

1. Core Assembling: The transformers are built with fully annealed, Cold Rolled Grain Oriented (CRGO) laminations. Fully mitred designs are used to ensure low losses/low magnetising current & low noise levels.
2. Winding: The windings are designed to optimise Thermal, Mechanical & Electrical stresses depending upon the current & voltage requirements. They can be of (a) Spiral Type, (b) Cross Over Type, (c) Helical Type, (d) Continuous disc type. The coils are made from paper covered or synthetic enamelled copper or aluminium conductors of EC grade.
3. Core-Coil Assembling: It is always ensured that all the HT & LT coils are preshrink, varnished and dried before assembly. Special care is taken to make theassembling mechanically and electrically strong. For this, vertical and horizontal supports of PC Board of required strength & size, suitably interlocked, are provided. Each HT coil section is separated by press board rings. Yoke insulations are made of PC Board, permille wood or Bakelite sheets, depending upon the size and voltage class of the transformer. LT leads are taken to the bushing terminals through proper bus bars/flexible jumpers. HT tapping leads & line leads are taken to the respective terminals through SRBP tubes-all suitability braced. Complete assembly is then dried in thermostatically controlled oven at 80° to 90° C. At the end of the drying cycle, the core assembly is further tightened to take care of the shrinkage.
4. Tanking: Tanks are made of mild steel and are of welded type. Suitable stiffeners are provided for robust construction. Enough cooling radiators made from pressed steel fins are provided to maintain the temperature rise within specified limits.
5. Insulation & Oil: All insulating systems are carefully selected with due consideration given to electrical, mechanical & thermal properties of insulation. The oil is used as a coolant and insulating medium. It is tested for di-electric strength as per IS:335, before topping up.
6. Testing: Each transformer is subjected to all the routine tests as recommended by IS:2026. On specific agreement, transformers can also be subjected to certain type tests/special purpose tests. Purchaser may depute his representative to witness these tests.

## Process Flow-Chart: