Company Information
Member Since 17 Years
Nature of Business Retailer Year of Establishment 1992Ask for more detail from the seller
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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.
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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Shimlapuri, Ludhiana, Punjab 
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