Transformers Dealers in Esplanade, Kolkata

• Transformer Rubber Bushing: Black

• Brand Name: Power
• Application: Lubricating
• Packaging Type: Can
• Type: Transformer Oil
• Country of Origin: India
• Transformer Type: Power Transformer
• Quantity Per Pack size: 26 Ltr

• Features: Highly efficient , Maximum work ability , Elevated service life ,Supreme functionality ,High strength.

• Certification: ISI Certified
• Speciality: Sturdy Construction
• Usage: Industrial Use
• Working Frequency: 50hz, 60hz
• Output Type: AC Single Phase
• Automatic Grade: Automatic
• Tensile Strength: 0-25Mpa, 100-125Mpa
• Warrenty: 1year
• Temperature Capacity: High Temperature

We are the proud Importer, Exporter and Supplier of different types of Power Transformer. Widely used for transmitting network of high voltages required for step-up and step-down applications, our Power Transformer is widely in demand throughout the world. Power Transformer that we offer is immensely accredited for its uninterrupted performance, sturdy construction and longer service life. Bulk quantities of Power Transformer can be availed at reasonable prices from us.

• Material: Porcelain
• Color: Brown
• Type: Insulator
• Application: Electrice Power
• Size: customized
• condition: new

Direct Measurement of voltage in high voltage system is not possible because of difficulty in electrical isolation of measuring instruments. It is also not possible to use voltage for the system protection due to its high value and difficulty in electrical isolation of protective relays. Therefore, Voltage Transformers are used to step-down the high system voltage to standard value accurately in proportion to their ratio. Basic Functions of voltage Transformer are To reduce the line Voltage to a value, which is suitable for standard measuring instruments, relays, etcTo isolate the measuring instruments, meters, relays etc. From high voltage side of an installationTo sense abnormalities in voltage and give voltage signals to protective relays to isolate the defective system Theory General principles of power transformer design also apply to the voltage transformers but there are certain considerations of performance which are of particular importance. In the electromagnetic voltage transformers, accuracy depends on leakage reactance and winding resistance. These determine how the phase error and voltage error vary as the burden on secondary increases. The permeability and power dissipation of core material affects the exciting current and thus the error at zero burden. To comply with the requirement of IS:3156/IEC: 60044-2, Flux density employed in Voltage transformer is much less than the value generally used in power transformer. The turns ratio and voltage drop due to leakage Design Single Phase Electromagnetic Voltage Transformer (EMV) is manufactured in two types Single Pole (To connect between line & Earth)Both Pole (To connect between Line-to-Line)hase Voltage Transformers are of star/star connected or star/Open delta connected (residual Voltage Transformer) type. Single – Phase voltage transformers are manufactured for 11kV to 132kV system voltage, where as 3 phase voltage transformer are manufactured for 11 kV to 33 kV system voltage Construction Voltage Transformer Mainly Consists of Primary & Secondary WindingElectromagnetic CoreBottom Tank & Top Oil Expansion ChamberPorcelain BushingStainless Steel Bellow Primary & Secondary Winding Enameled copper wire is used for winding. Primary is wound with multi layer and graded insulation. The diameter and length of each layer is selected such that surge voltage is distributed equally in all layers of the Winding. Multilayer Kraft Paper Insulation is provided between winding layers. Stress equalizing shield is provided on last layer of the winding. H.T. Connection is brought out through metallic galvanized pipe. Secondary is separately wound and inserted in the primary winding as per the requirement. Winding and taping of VT is done in dust free atmosphere. Electromagnetic Core CRGO Silicon Steel Lamination is used for building up Electromagnetic Core. Shell type construction is used to minimize leakage reactance. Bottom Tank & Top Oil Expansion chamber Bottom Tank and oil expansion chamber are made of M.S. Sheet. All tanks and chambers are painted with oven baked paint, after cleaning by seven tank process. All surfaces which come in contact with oil are painted with oil insoluble paint. M.S. Parts can be hot dip galvanized on request. Porcelain Bushing Brown Glazed porcelain Bushing with different shed profiles to suit different pollution conditions is used. These Bushings are Hollow cylindrical Type Conforming to I.S. 5621/IEC 815. Bushing with collar at both the ends is clamped using Aluminium Flange. Nitrile and Neoprene Gaskets are used at both sides of collar to from flexible joint. This joint can sustain vibrations without damaging bushing. Bushings with cemented Flanges are also used. Insulation High quality Electrical Grade Kraft. Paper rand Crepe Paper is used for insulating primary and secondary winding of V.T. The high voltage connections is brought through paper condenser formed on metallic galvanized pipe using fine grading of insulation semi-conducting shield is used to give linear distribution of electric stress ailing the length of the bushing. The paper insulation is dried in oven under very high vacuum and strictly controlled conditions. Filtered and de-aerated EHV grade oil is filled in V.T., while V.T. is under vacuum. To seal it, the space left for expansion on the top is filled with dry and pure nitrogen through non-returnable valve at pre-determined pressure. Testing Truvolt Engg. Testing Lab is equipped with modem test facilities to carry out all routine test, including temperature rise test. Partial discharge Measurement plays a vital role in quality control of insulation. All our Vts are tested for Partial Discharge on most modern bridge type partial Discharge Test Set. All the Vts pass through a standardized quality assurance plan ensure requisite top quality at every stage and in the final product. Packing & Transportation All Vts are packed with strong jungle wood to take care of most adverse conditions of transportation all over the country. Special seaworthy packing is done of the Vts for export. Maintenance Vts do not require maintenance apart from occasional cleaning of Bushings and checking of Nitrogen Pressure.

Rts power corporation is pleased to introduce itself as one of the leading manufacturers of power & distribution transformers, cables and conductors since 1972. We manufacture and supply distribution & power transformers of various capacities ranging from 10 kva to 100 mva, 113366132 kv class and supply the same to the different state electricity boards, various private & government organizations all over the country and abroad. we currently run 6 manufacturing facilities in india: jaipur (rajasthan), agra (u.p.) and kolkata (w.b.) and in ethiopia (dukem industrial area). 1) kolkata unit (head office) > power & distribution transformers jala dhulagori, sankrail, dhulagori, howrah 711302 (w.b.) > power & distribution transformers 130 dharmatala road, salkia, howrah 711302 (w.b.) 2) jaipur units > power & distribution transformers, cables & conductors c-174, vishwakarma industrial area, sikar road, jaipur 302013 > power & ehv division � 132 kv class transformers e-346, road no. 16, vishwakarma industrial area, jaipur � 302013 the company has set-up a cable and conductor manufacturing plant at jaipur that commenced commercial production in march 2007 3) kaladera > transformer oil a-25-26, riico industrial area, kaladera, jaipur (rajasthan) 4) agra > power & distribution transformers near 14 km mile stone, mathura road, p.o. Artoni, agra 282007 (u.p.) 5) ethiopia unit > repairing & after sales services dukem, oromia, ethiopia besides the above, we also manufacture and supply dry type transformers (upto 2500 kva, 110.433 kv). This department is equipped with vacuum impregnation tanks, multi faceted ovens, dust free manufacturing area and other equipment required specially for the dry type transformers.

• Power: 25 kVA
• Phase: Single Phase
• Current: 4 Amp
• Usage: Industrial
• Output Voltage: 240 V
• Mounting Type: Floor Mounted
• Input Voltage: 220 V

As is well known the Transformer plays an important role in the generation, transmission and distribution of electrical energy. Under load the transformer, dissipates heat and the insulating oil acts as a coolant as well as a effective dielectric. Due to the highly hygroscopic nature of the transformer oil, it absorbs moisture from windings, which leads to gradual deterioration of dielectric strength. TRUHEAT oil purifier is the most efficient and economical purification system. It consists of the following: Components of Plant   1) Filter Unit : The filter unit consists of: (a) a Coarse strainer having a wire mesh filter element for retaining solid particles and a powerful magnet for retaining magnetic particles. (b) a Filter unit containing round type filter paper discs held under spring compression. These can be easily cleaned off the sediment by reverse flow of compressed gas.   2) Indirect system of Oil Heating : Specially designed heaters with low watt density heat the auxiliary heating oil, which in turn heats the transformer oil maintaining a temperature of 70-80 C. This indirect method of heating completely obviates any localized overheating of transformer oil.   3) Vacuum Dehydration / Degasification Unit : The cylindrical external pressure vessel fitted with a number of shallow drip trays and a specially designed spray pipe. This arrangement increase interfacial surface area.   4) Condenser and Condensate Receiver : For condensing the vapour from dehydration chamber and condensate receiver of welded M. S. construction.   5) Feed and Delivery Pump : Effective feed and delivery pump of rotary gear type coupled directly with motors. Vacuum pump having adequate capacity are provided.   6) Water Seperator : Collects the water produced by the condensor which can be periodically drained out.   7) Control Panel : A centralized control panel incorporated all major electrical devices with indicating lamps is provided (a) Imported thermostat for temperature cut off at desired (b) Thermometer for measuring temperature of both heating as well as transformer oil (c) Pressure & Vacuum gauges (d) Flow control indicator (e) Electronic Float Control (f) Electrical instruments, voltometers and ammeters (g) Electrical overloads and overload releases for safety of motors.

  Resin & Oil Cooled CT & PT BETWEEN 11 Kv & 33kv Type tested from CPRI Bhopal Available in Different accuracy class, Ratio & Burden Suitable for Indoor & Outdoor application CT Bank and Insulators as per customer requirements.

As is well known the Transformer plays an important role in the generation, transmission and distribution of electrical energy. Under load the transformer, dissipates heat and the insulating oil acts as a coolant as well as a effective dielectric. Due to the highly hygroscopic nature of the transformer oil, it absorbs moisture from windings, which leads to gradual deterioration of dielectric strength. TRUHEAT oil purifier is the most efficient and economical purification system

• Brand Name: SERVOLINE  
• Specialities: Customer friendly, High performance ratio, Available in Medium, High & Ultra Vcuum Models, Multi stage degassing system, Minimum maintenance

No Semiconductor or moving part used, hence very high reliability, No feed back control used, Intrinsic current limiting and short current protection, Energy storage for line loss upto main 3ms at typical load, Short term over load capacity.

• Features: Efficient capacity, Great service life , Easy maintenance.

Rated power from 50 kVA up to 2.5 MVA Rated insulation level up to 36 kV (other rated level on request) Rated frequency 50 or 60 Hz  Mineral oil insulating liquid Hermetically sealed or breathing with conservator Naturally cooled (ONAN) or air forced (ONAF) on request Conventional losses or high efficiency ranges

• Material: Porcelain
• Packaging Type: Box
• Color: Black
• Country of Origin: Made in India
• Frequency: 50-60 Hz
• Voltage: 11Kv

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