Transformers Dealers in Rafi Ahmed Kidwai Road, Kolkata

• 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.

• Features: Enhanced durability, High sustainability ,Heat proof , Heavy-duty.

• 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

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.

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

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

We specialize in Manufacturing and Supplying an impeccable range of Booster Transformers. Our array of Booster Transformers is ISI graded which further assures its quality. Further, these Booster Transformers are customized according to clients' specifications and requirements. We are reckoned as prominent Booster Transformer Manufacturer and Supplier. Attributes : Negligible oil leakageDurable Painted with oil resistance paintLow maintenance Superior performance Used In : Textile Industry Steel IndustrySugar IndustryFoundry SmeltingTea EstatesGeneral Engineering

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

• Accuracy Class: 0.2 / 0.5 / 1.0
• Range Offered: 11KV, 33KV & 132KV
• Primary Current: upto1000 amps.
• Secondary Current: 5A & 1A

• Cooling Type: Oil Cooled
• Brand Name: Standard Radio
• Power Rating: 1.5MVA
• Number of Phase: 3-Phase
• Voltage Ratio: 420V
• Winding Material: Copper
• Standards: IS-2026

Direct weld-able type Pressed Steel Radiators

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.

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

• Type: Current Transformers
• Usage: Control Panels, Industrial Use, Power Grade
• Color: Green, Grey, Light Green, Sky Blue, White
• Operating Type: Automatic, Fully Automatic, Semi Automatic
• Condition: New, Used
• Feature: Easy To Install, Electrical Porcelain, Four Times Stronger, Proper Working, Sturdy Construction, Superior Finish
• Cooling System: Air Cooling, Oil Cooling
• Current Type: Double Phase, Single Phase, Triple Phase

Three Phase Transformers, Single Phase Transformers

Arc Welding Machines, Electrical Wires

Substation Equipments, Electrical Cables, Electrical Circuit Board

We are offering potential transformers at very market leading prices company.

oil filled power transformer, vacuum resin impregnated dry transformer

Crgo Laminations

Electrical Testing Equipment, Transformers, Voltage Stabilizers

low tension cables, high tension cables, Switchgear, Power

Distribution Transformers

Transformer, Electrical Goods

Transformers, Battery, Refractories

Transformer

ei core transformers, Clamps, Transformers

Distribution Transformers

CT PT Combined Metering Unit, C.t / p.t. Metering Unit