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Electrical Furnace Transformers

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Built using superior quality components, our 1250 KVA Transformers spell only high performance in testing times. Because of their sturdy built, high quality components and its performance, these transformers are highly in demand in national and international markets.

Distribution Transformers is also known as Auto Transformers.

Distribution & Power Transformer:

  • Upto 150 kVA Single Phase both 11 & 33 kV class
  • Upto 40 MVA, 66 kV class
  • Upto 20 MVA OLTC 33 kV class

Applicable Standards:

  • IS, IEC, ANSI, JIS, BS, DIN

Transformer Options:

  • Cooling tubes, radiators and corrugated tanks
  • Pole mounted or ground mounted
  • Free breathing or hermetically sealed
  • CSP and Non CSP
  • Winding-copper/aluminum (foil/rectangular wire/round wire)
  • Fittings and accessories, cable
  • Terminations: As required

Standards:

  • Tested as per IS: 2026, BS - 171, IEC - 76 & IEC - 726

Vector Group:

  • Transformers will be connected as per vector group reference Dyn 11

Terminal Arrangement:

  • H. V - bare bushings or cable box
  • L. V. - bare bushings
  • cable box
  • Disconnecting chambers can also be provided on both HV and LV cable boxes

Temperature Rise:

  • Transformers are designed for a maximum temperature rise 40/50ºC of oil and winding
  • Lower temperature rise can be offered on request

Standard Fittings:

  • Rating and diagram plate
  • Earthing terminals - 2 nos
  • Lifting lugs
  • Oil level indicator (plain)
  • Drain-cum bottom filter valve with plug
  • Oil filling hole with plug on conservator
  • Oil conservator with drain plug
  • Air release plug
  • Silica gel air breather
  • Bi-directional flat rollers
  • HV terminals-outdoor bushings
  • LV terminals-outdoor bushings
  • Radiators
  • Filter valve with plug
  • Thermometer pocket
  • Oil temperature indicator
  • Externally operated off circuit tap changing switch
  • Explosion vent
  • Sampling value (for 2000 Kva & above transformers only)

Accessories on Request:

  • LV and HV cable boxes
  • Winding temperature indicator (WTI)
  • Buchholz relay
  • Magnetic oil level gauge
  • Marshalling box
  • Disconnecting chamber
  • Oil temperature indicator with electrical contacts (OTI)
  • Pressure relief valve

Electrical Furnace Transformers

Electrical Furnace Transformers

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Multiple Shielding Techniques employed to reduce the inter winding capacitance to below 0.005 picofarad and increases DC Isolation to over 1000 Megaohms.
Technically any transformer that has no direct current path between its primary & secondary windings provides isolation from any kind of leakage in Current, Spikes/Surges produced in the system. Provision of electrostatic shield in between primary & secondary winding depends upon its construction, specification & performance characteristics.
Isolation/Ultra Isolation Transformer are being used to protect Electronic & Sophisticated equipments, CNC Machines from the excessive line voltage transients, spikes / surges produced in the system. Electrostatic shielding helps in grounding these spikes & not allowing to pass on to the secondary side of the transformer.

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