Established as a private limited company in 1976, Marson’S, is into the business of power generation, EPC contracts, logistics and construction. The company has supplied more than 150,000 transformers across India during the last five decades. Marsons’ foundation has been established by powerful and pragmatic principles backed by hard-core commitment for excellence.

The company, incorporated under the name Marsons Electricals, acquired the proprietorship concern Marsons in 1977. Marsons was into the manufacturing of transformers of different classes and ratings since 1957.

It was converted into a public limited company in July 1981. The company got its present name in December 1990. The company got de-listed from the Delhi Stock Exchange (DSE) with effect from December 11, 2004.

Marsons manufactures power and distribution transformers ranging from 10 KVA to 100 MVA 132 KV class, furnace transformers, dry type transformers and various types of special application transformers. The company’s transformers of various rating have been successfully type-tested at CPRI in Bhopal and Bangalore.

In 1994, the company came out with a public issue to part finance the expansion of its facilities to manufacture power transformers up to 66 kV and 132 kV class, upto 20 MVA rating.

Marson’S constantly updates its products with the latest development and innovations in the industry. The company’s plant is located in Kolkata, spread over an area of 35,000 square feet with a built-up area of approximately 18,000 square meter. The plant is fully equipped to manufacture power transformers of up to 100 MVA 132 KV class. It recently upgraded the facilities to manufacture EHV power transformers up to 160 MVA 220 KV Class.

Marsons is among the first to set up Impulse Testing Laboratory and Autoclave (Vacuum Heating System) way back in 1995-96. The laboratory is equipped with 1600KV 80 KJ impulse generator imported from Haefely Trench of Switzerland. Its laboratory is also fully equipped to perform all required routine tests and temperature rise test for various ratings of power transformers up to the range of 160 MVA 220 KV class.

The testing departments with its hi-end equipment play a decisive role in the implementation of quality. It has two laboratories, both equipped with modern machineries and precision instruments; tests are conducted separately with one laboratory being alloted for high/ medium voltage transformers and the other one for medium/ low voltage transformers. 

Product Range:

a) Power Transformers up to 160 MVA 220 KV class -

• Generator Transformers
• Unit Auxiliary Transformers
• Station Auxiliary Transformers
• Power Transformers
• Auto Transformers

b) Distribution Transformers -

• 10 KVA, 11 KV/0.433 KVA
• Single Phase 5 KVA to 40 KVA
• Dry Type Transformers up to 2 MVA 33 KV class

c) Furnace Transformers up to 50 MVA -

• Arc Furnace Transformers
• Submerged ARC Furnace Transformers
• Ladle Furnace Transformers
• Induction Furnace Transformers
• DC Arc Furnace Transformers

d) Instruments Transformers -

• Current Transformers up to 132 KV class
• Potential Transformers

e) Unitized Substation up to 2 MVA 33/11 KV class.

Clientele:

• The company’s valued clientele includes some of the best-known names in power, infrastructure and other critical industries. Customers range from urban utility services and power plants to defence, railways, and other industries.
• State Electricity Boards and Power Utilities -- Rajasthan, West Bengal, Assam, Madhya Pradesh, Andhra Pradesh, Maharashtra, Jharkhand, Chhattishgarh, Bihar, Orissa, Government of Manipur, Meghalaya, Uttar Pradesh, Uttaranchal, Tamilnadu and Kerala.
• Corporate Customers -- ABB, Areva T & D, CESC, DPL, North Eastern Cable & Conductors, Techno Electric & Engg, Siemens, BHEL, Crompton, L&T , Tata Group of Companies, Reliance Group, Prakash Industries, Bharti Airtel, Bhushan Steel, Megatherm.
• Overseas Customers -- UK-based Castle Cement, Ethiopia’s Yesu PLC, Dubai’s Teklec, UK’s Bowers Electricals and Jordan’s Alarabia Co.

Subsidiary

Advance Power Technologies -- The subsidiary company is engaged in the same line of business as Marson’S with more thrust on manufacturing of small capacities electric transformers.

Achievements:

Marson’S is an ISO 9001:2000 certified company.