TRAFO ELECTRIC P. LTD.
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1 TRAFO ELECTRIC P. LTD.
2 About Us Trafo Electric P. Ltd. started manufacturing Power & Distribution Transformers in Originally known as J B Electricals, the unit s entire production was for BSES( Bombay Suburban Electric Supply, now Reliance Energy Ltd.) Trafo had entered into technical and marketing tie-up with M/s.Crompton Greaves In the year Trafo s transformers conform to the latest Indian Standard specification 2026, IEC-76 and BS-171. Trafo has been awarded ISO 9001: 2008 Quality Certificate. Trafo Electric P. Ltd. is a part of the 52 year old ALLSTATE Group.
3 Products & Services Trafo manufactures Power and Distribution Transformers with ratings from 25 KVA to KVA & up to 33 KV. Trafo also specializes in transformers for wind energy applications. Other transformers like Auto-Transformers, Lighting Transformers, Dry Type Transformers, Furnace Transformers, Wound Core Type Transformers are manufactured on demand. In addition to manufacturing transformer Trafo undertakes field work for the following services:- a) Inspection and testing of faulty / malfunctioning transformers at site to ascertain services necessary. b) Filtration of oil at site while the transformer is in running condition. c) Annual rate contract for repair / maintenance of transformers at site. Trafo s manufacturing and testing facilities are suitable for manufacture of transformers up to KVA, 33 KV.
4 Power & Distribution Transformers
5 Construction CORE: Core is built up from mitred low loss cold rolled, grain oriented steel laminations. Individual stampings are coated on both sides with an insulation material which is both oil and temperature resistant. The Core limbs are securely bound with heavy duty fibrous glass tapes and the yokes are firmly clamped between steel channels. All cores have mitred joints. Top & bottom clamps are secured to each other by means of tie rods which serve the dual purpose of securing the windings in place and of transferring the load from the bottom to the top clamps when the core and windings are lifted. This prevents tensile stresses being set up in the core legs which could adversely affect the iron losses.
6 Construction WINDINGS: Transformer windings are designed to meet three fundamental requirements such as mechanical, thermal and electrical. They are cylindrical in shape and are assembled concentrically. The low tension windings are of the helical type, single or multilayer, using flat copper strips, depending upon the size and current rating of the transformer. The high tension windings consist of paper covered round conductors. For higher KVA ratings continuous disc windings are used, for lower ratings cross-over type windings are used. The windings are rigidly supported by pre-compressed press board, dovetailed strips and spacers. Interlayer cooling ducts are provided to ensure that the temperature gradient between windings and oil are maintained and hence the hot spot temperature is minimized and a high life expectancy is achieved. Insulation between layers and turns is based upon the impulse test level of the voltage class of the winding as specified in IS Completed Core coil assemblies are dried and pressed to desired dimensions prior to impregnation with transformer oil under vacuum.
7 Standard Tests The following tests will be carried out on all Transformers. The numbers shown do not necessarily indicate the sequence in which the tests will be carried out. All tests will be in accordance with the. latest revision of IS Measurement of resistances of all windings of each unit. 2. Ratio tests at all tap positions. 3. Polarity and Vector group tests at normal tap. 4. No load loss at rated voltage, rated frequency at normal tap. 5. Excitation current measurements at rated voltage, rated frequency at normal tap. 6. Impedance and load loss measurement at rated current, at normal tap of each unit. 7. Separate Source Voltage withstand test. 8. Induced over voltage withstand test. 9. Measurement of insulation resistance. 10. Dielectric capacity of the transformer oil.
8 Partial Client List Sr. No. Ratings (KVA) Transformer Voltage Ratio (KV) Name of the Customer Quantity (Nos) /.433 Hukeri Taluka Elec Soc Ltd., Belgaum /.433 BSNL (Telephone), Pune /.433 Cummmins India Ltd. Pune /.433 HEG Ltd., Bhopal /.433 Elegant Engineering, Madras /.416 Crompton Greaves Ltd /.433 Thapar Dupont Limited, Goa /.433 Dipak Vegetable Oil India Ltd, Gujarat /.433 Sunflag Iron & Steel Company /.433 T.I. DiamondChains, Madras 1
9 Partial Client List Sr. No. Ratings (KVA) Transformer Voltage Ratio (KV) Name of the Customer Quantity (Nos) /.433 Greaves Foseco, Jammu /.416 Didan Constructions, Shillong /.433 Lakme Ltd /.433 Stated Vanaspati, Assam /.433 Indian Lead Ltd. Thane /.433 Baroda Dist. Co.op Milk Ltd, Baroda /.433 National Telecom of India Ltd., Nasik /.433 Samir Electricals, Pune /.433 Goeffrey Manner Co Ltd., Nasik /.433 Alfa Laval India Ltd., Pune 2
10 Partial Client List Sr. No. Ratings (KVA) Transformer Voltage Ratio (KV) Name of the Customer Quantity (Nos) /.433 Hyderabad Ind Ltd /.433 Delhi University /.433 Vijay Traders, Delhi /.433 Vindhya Builders, Calcutta /.415 Synthetics & Chemicals, U.P /.433 Shogun Organics Limited, Pune / NEG Micon (I) Pvt. Ltd., Chennai /.433 Rawal Electricals, Delhi /.433 Ballarpur Industries Limited /.440 Zenith Tin Works Ltd 1
11 Partial Client List Sr. No. Ratings (KVA) Transformer Voltage Ratio (KV) Name of the Customer Quantity (Nos) /.433 Ring Gears Limited, Nasik /.433 Shrikrishna Petro Yarn Ltd, Silvassa /.433 Continental Construction Co., Bombay /.433 Kirti Dal Mills Ltd., Latur /.433 Ugar Sugars Ltd., Hubli /.433 Kirti Foods Ltd., Latur /.69/.400 NEG Micon (I) Pvt. Ltd., Chennai /.433 Kirti Oil Mill Ltd., Latur /6.6(OLTC) Mahati Electrics, Pune 2
12 Certificates
13 Company Overview FACTORY Trafo s manufacturing facilities at MIDC, Chinchwad near Pune, spread across 30,000 sq.ft., is equipped with all modern manufacturing machinery s and testing instruments required for production of transformers under IS-2026/IEC-76. TRANSFORMERS Trafo s Transformers under-production at their factory at MIDC
14 Company Overview AN INSIDE VIEW An inside view of Trafo s manufacturing facilities at MIDC, Chinchwad near Pune, which is equipped with all modern manufacturing machineries and testing instruments. TESTING ROOM Trafo s Transformers gets tested in our fully equipped Testing Room, under different quality standards before delivering them to our clients.
15 Company Overview TRANSFORMERS UNDER-PRODUCTION Trafo s Transformers under-production at MIDC factory. TRANSFORMER INSTALLED One of Trafo s 315 KVA/ 11 KV Transformer has got successfully installed at our client's location
16 Factory
17 Corporate Office
18 Contact Us 901, Maker Chambers V, Nariman Point, Mumbai , India. Telephone Nos.: Fax : info@trafo.in or info@allstate.in Web Url : Plot No. 34, D 11 Block, MIDC, Telco Road, Chinchwad, Pune Tel: (9520) , Telefax: (9520)
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CONTENTS 2/ /7 8/9 10/11 12/13 14/15 16/17 18/19 20/21 22/23 24/25 26/27 28/29 30/31 32/ Contact Us 38
CONTENTS Market Sectors Company Profile Planar Technology Product Range Overview Size 10 MAX 1kW Size 195 MAX 1.5kW Size 225 MAX 2kW Size 20 MAX 2kW Size 50 MAX 6.5kW Size 500 MAX 10kW Size 510 MAX 10kW