# Products

## Distribution & Power Transformer

Our distribution transformer provides the final voltage transformation in the electric power distribution system, stepping down the voltage used in the distribution lines to the level used by the customer. An alternating current (AC) in one winding creates a time-varying magnetic flux in the core, which induces a voltage in the other windings. Transformers are used to convert between high and low voltages, to change impedance, and to provide electrical isolation between circuits.

Star Rated Transformers: Energy efficient transformers are that carry standard specifications. The referred Indian Standard are IS-1180 (part 1 & 2) Outdoor type three-phase distribution transformers upto and including 200kva, 11 KV – specification, IS-2026 (part 2). The standard ratings covered under this pilot energy labelling scheme is 16, 25, 63, 100, 160 and 200kva and non-standard ratings from 16 to 200kva.The salient feature of the star rated transformer is the fact that only total losses are specified, both at 50% loading and at 100% loading, so that the manufacturer may use his design, expertise and optimum materials to achieve the given losses.
Special Transformers: In compliance with our R&D work and dedication to provide customised services, we always work towards satisfying the demands of our customers. Over the period, we have manufactured and supplied special and different kinds of transformers that have a very niche demand.
Single Phase Transformer: We also manufacture single phase transformers in CRGO Steel core upto 25kva which are widely used by utilities to provide electricity supply as per need.

## Technical Specifications (Distribution Transformer)

Ratings | 1 Phase, upto 33 kV 167 kVA 3 Phase upto 33 kV 3000 kVA
Frequency | 50/60 Hz
Applicable Standards | IS: 2026, IS: 1180, IEC 76, ANSI.C.57
Core | Wound or Stack (CRGO Steel)
Winding | Copper / Aluminium
Insulating Fluid | Mineral Oil
Class of Insulation | Class A
Tap Changer | OCTC, OLTC as per customer requirement

## Process Flow-Chart:

## StandardAccessories with transformer:

Rating & Diagram Plate | HV & LV Bushings with fittings | Lifting & Jacking Lugs | Silica-gel Breather | Filter Valve | | Earthing Terminals | Thermometer Pockets| Magnetic Oil Level Gauge| Conservator| Arcing Horns| Lightening Arrester

## Optional Accessories with transformer:

HV / LV Cable Boxes | Pressure Relief Device | Off Circuit Tap Changer |On Load Tap Changer with RTCC | Oil Temperature Indicator | Double Float Buchholz Relay | Disconnecting Chambers | Winding Temperature Indicator | Epoxy / Touch proof Bushings with connector | Siphon Thermo Filter | Terminal Connectors | Protective Fuse | Secondary Circuit Breaker | Bird Guard

## Quality we maintain:

We have certified quality system as per ISO: 9001 – 2008. Raw materials and components/assemblies are subject to rigorous inspections at every stage of manufacturing process. Quality assurance during production is an important part of the company’s policy covering every aspect of manufacturing, supply and service. Each transformer is declared fit for sales after passing the below mentioned Quality Tests.

## Routine Test:

- Resistance measurement of all windings
- Ratio, polarity and phase sequence
- Polarity and phase relation test
- Test to determine no-load losses at rated voltage and frequency
- Excitation current at rated voltage and frequency
- Impedance voltage and load loss measurement
- Induced potential tests of insulating oil
- No Load current and losses at service voltage and formal frequency
- Load losses at rated current and normal frequency
- Insulation resistance
- Induced over voltage withstand test
- Separate source voltage withstands test
- Unbalanced current measurement

## Type Test:

- Short Circuit Test
- Impulse Voltage Withstand Test
- Temperature Rise Test
- Tan Delta Test
- Noise Level Measurement

## Warranty we offer:

Our product carries up to 5 years warranty from date of despatch. Extended warranty may be offered subject to mutual agreement.

## AFTER SALES SERVICESS

The main focus of our business is to provide timely, cost effective and efficient after-sales services. Our team is always geared up for responding to customer’s queries. We also provide routine check-ups of transformers as and when required at nominal costs.