OLTC Transformer

Listing ID #1412310

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Supply Type Manufacturer, Exporter, Supplier

Preferred Buyer From : All over the world

The company stands tall among the successful Manufacturers, Suppliers and Exporters of OLTC Transformers. Our range of OLTC Transformers is used in paper mills, sugar mills, rolling mills, steel....

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Product Details

The company stands tall among the successful Manufacturers, Suppliers and Exporters of OLTC Transformers. Our range of OLTC Transformers is used in paper mills, sugar mills, rolling mills, steel mills etc. Bulk orders of the Transformers are processed by us as per the specific requirements of the buyers. One can obtain it at nominal rates.

Range : 6.3KVA to 4000KVA

About Oltc Transformers :

On load tap Changer (OLTC) is used with higher capacity transformers where HT side voltage variation is frequent and a nearly constant LT voltage is required. OLTC is coupled with the transformer itself. Multiple tapings from HV windings are brought to the OLTC chamber and connected to fixed contacts. Moving contacts rotates with the help of rotating mechanism usually a Geneva mechanism having a spindle. The spindle can be rotated manually as well as electrically with a motor. Motor is connected in such a way that it can rotate in both the directions suhc as to rotate the OLTC moving contancts clockwise and anti clockwise. Two push buttons are fitted on the LCP (low control panel) to rotate the motor and hence the OLTC contacts. This movement of contacts thus controls the output LV voltage of the transformer. So rotating of the OLTC contacts with spindle or push button in this way is manual process. In case this process of rotating the OLTC contacts and hence controlling the LV side voltage is to be done automatically then a RTCC (remote tap changer controller) is installed with the transformer ht panel. The RTCC panel which has sensors which sense the output voltage and accordingly sends signal to LCP and LCP in turns rotates the motor as per signal received from the RTCC.

Applications :

Chemical Plant, Botting Plant.
Paper mills, Sugar mills, Rolling mills, Steel mills etc.
Industries which rely heavily on automation, where electronic cards, PLC and VFDs are used in operations and acutation.
Hospitals, Schools, Insitution etc.

Specifications

Item	Description
Range of Transformer	250 KVA - 5000 KVA (6.6 Kv, 11 KV, 22 KV, 33KV)
Vector Group	Unless or otherwise specified, the transformers will be connected as per Vector Group reference DYn 11 in accordance with international Practice.
Core	The core used is best qualtiy cold rolled grain oriented and laser processed silicon steel sheet. They provide low iron loss, low noise, and compact size and have the best performance for high efficiency transformers.
Windings	We use high quality conductor of copper in our products. Round or rectangular copper wires / Strips ribbed with thermally upgraded insulting paper are applied in oil immersed transformers. The winding have a compact size, excellent heat transmission, Low load loss, high lighting impulse resistivity and outstanding anti-short-circuit strength.
Insulation	Our oil-immersed transformers are insulated by electrical grade insulated press board and thermally upgrade insulating Kraft Paper.
Tappings	Tapings + 5% to - 15% in steps of 1.25% or as per customer's requirement.
Oil	Dehydrated EHV-Grade transformers oil as per IS 355 (1993) with latest amendments is used for proper insulation and cooling after testing for all the parameters viz a viz resistivity, tan delta, BDV, neutralization, flash point etc.
Bushings	For HV/LV bushings : Good quality porcelain bushings are used on the high voltage terminals / low Voltage terminals. Optional bushing wells, inserts and elbows are available upon request. High voltage cables are inserted directly and show no live parts Outside.
Accessories	The accessories include an oil filling hole, oil drain valve, safety valve, standard thermometer, oil level gauge, skid wheel, jacking pad, breather, earthing terminal
Optional Accessories	Buchholz realy, cooling fan, HV & LV cable box, cable duct, bus bar duct, dial-type thermometer, oil level gauge, OTI (Oil Temp Indicator), WTI (Winding temp. Indicator), Marshling box, pressure release valve, protective fuse and lightening arresters are available upon customer's request extra cost.

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Company Details

GTB Group is a well-established and reputable organization that provides solutions for energy management for the last 18 years & professionally managed by professionals and technocrats with more than 25 years of experience. .We are an ISO: 9001:2008 certified company & are based at Ludhiana (Punjab) & Jammu (J&K) under brand name of "GTB". We are one of the leading manufacturers of Distribution transformers from 10 K.V.A. to 3500 K.V.A. upto 33 K.V. Class, having different voltage ratios. Our transformers are type tested for impulse test and short - circuit test from Govt. approved testing houses like NTH, Ghaziabad, CPRI, Bhopal, & ERDA, Vadodara, All the major components and raw materials are procured as per IS standard and from standard reputed sources like copper from Hindalco, Core (CRGO) imported from Japan, Transformer oil from Apar/Savita from Silvasa , Steel from SAIL/TATA. All the in house arrangements are available with us right from Copper, Aluminum wire & strip drawing, annealing & insulation, core cutting, tank fabrication etc. A separate quality control department is always having a check on these departments to ensure proper quality of the products manufactured by us. The Design and testing facilities available with us are at par with best available in the industry to perform all routine test, strictly as per IS 9815/IS2026 and with calibrated meters before dispatch. We have complete testing lab for transformer oil also. GTB Range Servo voltage stabilizer - These are available in 3 phases, from 30 KVA to 3500 KVA. Of ROLLING CONTACT TYPE SERVO VOLTAGE STABILIZER Transformers - The range includes distribution transformers with or without OLTC, Ultra Isolation, Dry Type Transformer (VPI), Special purpose transformers & auto transformers upto 4000 KVA & upto 33 KV class. Besides the above we are also capable of re-engineering and repairing all types of transformers upto 4000 KVA. We are approved vendor of Department of Atomic Energy (DAE) & TATA Projects Ltd. for supply of Transformers. We are registered under the quality making scheme of Punjab Government. Leading Inspection agencies are regularly visiting us for Third Party inspection for transformers. We are regular supplier to PSPCL (Punjab State Power Corporation Limited), UHBVNL (Uttar Haryana Bijli Vitran Nigam Ltd.,) JVVNL (Jaipur Vidyut Vitran Nigam Ltd), Rajasthan, Punjab Mandi Board for distribution transformers of various capacities. Our prestigious customers in various areas like Cement plant, Flour & Rice Mills, Pharmaceutical units, Cold Storage, Textile Mills, FMCG, Plastic, Steel & Metal, Exports, Hospital, Leather, Govt. sector, Oil, Infrastructure etc. in India and abroad, a few are listed below: Essel Mining & Industries Ltd. (An Aditya Birla Group Company), TVs Motor Co., TATA Ryerson Limited, Reliance, McDonald’s, Camlin, Pizza Hut, BPCL, IBP, Rungta Mines, Goodrick Tea, Insecticides India Ltd. , Punjab Chemicals , Club Mahindra, Nirula’s, Quippo Telecom, Tower Vision India ,Texla TV , Luminous, L&T, MBD Group , Ajanta Quartz, Hamdard, V-guard, NHPC, LANCO Infra, Daawat Rice, Mankind Pharma , Ruchi Soya , Marvel Tea, Amtek Railcar , PES Engineers, ITC Ltd. Pfizer Health , GVK Power, Lotus shoes, JK Lakshmi Cement Ltd. Cottleaf, Schneider Electric BHEL, Goodricke Tea, Agro Tech Foods Ltd (Sundrop Oil, Act II Popcorn), .S.C. Johnson Products Pvt. Ltd (Allout, Baygon, Kiwi) , Punjab Agriculture University (PAU) ,TI Metal (Murugappa Group) etc,