Distribution transformers manufacturer,power distribution transformers supplier,distribution transformers supplier India

An ISO 9001:2008 certified company, offering technologically advanced range of products like Power & Distribution Transformers and Servo Stabilizers.

An Overview

With a focus on catering uninterrupted power distribution and supply services for global development concern, Mahendra Transformers (P) Limited started its business activity with the manufacture of safe & cost-effective Power & Distribution Transformers and Servo Stabilizers. The company also offers transformer for special applications, such as Induction furnace & furnace transformers up to 1 MVA, Rectifier transformers upto 1 MVA/11KV, Auto transformers 50 KVA-300 KVA (400 V/440V), Voltage Regulators, Boosters, Servo Stabilizers from 80 KVA - 1000KVA, Mining/Collaries Transformers.

We enjoy a prominent position among the Transformer manufacturers in India. Since our inception, we have been following international standards of quality in the manufacturing of our range. Our products are made up of high quality ingredients and are widely appreciated for their specific features like low power consumption, low maintenance cost, reliable performance, superior design, and higher efficiency. Furthermore, these products are available in different specifications and can be easily customized as per the specific requirements of our clients.

We have a widespread network of distributors who helps us in the proper distribution of our range in set time frame. In addition, our talented and highly focused team of professionals have always been instrumental in achieving needed recognition in the industry.

Our Business Specifics

Our Extra Edge

It is our unremitting dedication and customer-oriented business approach, which has helped us in designing high quality equipment and devices, which enjoys a huge accolades of customers' appreciation. Some of the extra ordinary postulates of our company that makes us stand high in the market from our competitors is enlisted below:

Product Portfolio

Our technologically improvised product range comprises following:

The company is also manufacturing transformer for special applications, such as:

Quality

At Mahendra Transformers (P) Limited, we believe in delivering “quality” to clients and therefore, we have organized a complete Quality Management System that helps us in aligning ourselves with global quality standards.

We adopt stringent policies and procedures when it comes to product manufacturing, testing and packaging. A series of stringent quality control test endows our Transformer with operational reliability and long life. Besides these durability tests, we also follow an intermediary and final inspection procedure which comprise of a large number of test in accordance with National standard like IS:2026 BS-171 and IEC-76 using precision grade instruments of 0.5 accuracy class. We provide all test reports to the client along with the delivery of their transformers.

The vindication of our company's merit gets reflected by its ISO 9001:2008 Certification from TQCSI, which internationally acknowledges its the quality assurance system. Moreover, this certification also ensures the manufacture and supply of products conforming to specified customer requirement along with continuous improvement in quality and performance.

Manufacturing Process

At MAHENDRA each and every component used in a transformer undergoes series of stringent checks and controls at each stage of manufacture. And it is ensured that strict technical and qualitative specifications are adhered to each one of them.

Utmost care is taken while manufacturing and assembling every components of a Transformer. The main process lines that we follow to manufacture transformers are enlisted below:

Core: The core is constructed from lamination of imported cold rolled, grain oriented, low loss electrical sheet steel. The cores are assembled in jigs prior to tapping and clamping in a manner that reduces vibration noise to a minimum individual stamping are coated on both sides with an insulating varnish which is both oil and heat resistant and the complete core is connected to the clamp to ensure that is is effectively earthed. The core legs are surely bound with heavy duty insulating tape and the yokes are firmly clamped between folded steel channels. Top & Bottom clamps are secured to each other by means of tie rod, which serves the duel purpose of securing to the clamps when the core and windings are lifted. This prevents any tensile stress being setup in the core legs, which could adversely affects the iron losses.

Winding: Transformer windings or "Coils are designed to meet three fundamental requirement, mechanical, thermal and electrical. They are cylindrical in shape and are wound of concentrically, Both HV & LV windings are wound with adequate brazing and securing tapes in order to achieve a strong and self-supporting structure.

Inter layer ducts are provide to ensure low temperature gradient between windings and oil, and thus, any hot spot temperature is kept to a minimum. This ensures that the rate of insulation deterioration is minimized and high life expectancy is achieved.

Winding Connections: Tapping and phase lead are run in paper covered conductors, the phase leads being separate from the tapping leads by adequate barriers. These tubes area rigidly brazed to ensure that required clearance from coil to tank is being maintained. LV Leads, larger in cross-section, are generally sufficient robust, but where necessary.

Tank Construction: All tank are made from mild steel of adequate thickness with either corrugated wall panel type radiators or pressed steel fin/cooling tube for heat dissipation. All tanks are checked by magnaflux, ultraviolet ray die penetrating system to ensure that there is absolutely no leakage from any part of the tank.

Quality Finish on Tanks Through the Use Of Shot Blasting Technology: Tanks are shot blasted to remove mill and welding scale and then a primer coat is immediately applied to the exterior to eliminate rust formation.

After priming, all tanks receive a coat of intermediate paint and after pressure testing, they receive a final coast of high gloss paint applied by spray. This ensures high coverage helping to combat corrosion in inaccessible place.

Insulation and Impregnation: The principal component of insulation is insulating pre-compressed press board. The component like rings, ducts dovetailed spacer; blocks etc. are put under compressing along with the coil assembly for pre-shrinking. The slight recovery in dimension after the pre-shrinking is compensated by providing additional insulation. This reduces the probability of coils getting loose during operation and also minimize the failure due to short circuit forces.

Short Circuit Capability: In order to prevent deformation under short-circuit forces, solid insulation end block and ring are used, Winding are compressed under top and bottom clamping members with the help of tie rods. The axial end thrust under fault conditions is minimized by the suitable balance of the ampere-turns over the length of windings. In case of bigger transformers, the HV tapping leads are taken out form two positions to balance the short-circuit forces in a much better way.

Our qualitative array of Power & Distribution Transformers and Servo Stabilizers has fetched us the goodwill of many eminent clients in India. Some of the reasons that assist us in securing a recommendable position in this competitive market are: