Sarva Series

Packaged Substation| Unitized Substation​

Sarva Series – USS

Ratings

  • Rated Voltage: 3.3kV to 33kV/ upto 3MVA

Winding

  • Copper or Aluminium
  • Insulation Class F (140 Celsius)

HT Side Protection

  • RMU, VCB, RMG or LBS

Advantages

  • No maintenance
  • Factory built
  • Ready to install
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Product Description

Megawin Cast Resin Transformers are dry type transformers, supplied in sheet steel enclosure suitable for either indoor or outdoor installation and are Air.

Natural (AN) cooled. Higher ratings for hot environments are supplied with forced cooling as well. They are suitable for cable termination on HT side and LT side. Bus-Duct termination is also offered on LT side.

Product Features

  • It is compact and maintenance free

  • Resin casting provides much better dielectric strength and short circuit withstand capability

  • It has negligible partial discharge due to epoxy casting under specialized vacuum process with HV/LV winding separately cast

  • The foil winding in LV makes it withstand higher short circuit forces owing to negligible axial force components

  • Off circuit Tap changing links are a standard feature. Dry Type On-load Tap changing Gear can also be supplied

Application

  • High- rise buildings

  • Congested locations

  • Fire hazard areas like mining, oil and gas etc.

  • In urban areas where cost of real estate is high

Market Segments

  • Utilities (Secondary distribution)

  • Industries

  • Commercial and infrastructure (residential complex, malls etc.)

  • Healthcare

  • Mining

  • Solar plants

Model Sarva Series Sarva Series Sarva Series
Rated primary voltage 11kV 22kV 33kV
Rated secondary voltage 433V 433V 433V
Power rating Upto 3000kVA Upto 3000kVA Upto 3000kVA
Frequency 50Hz 50Hz 50Hz
Tapping on Primary side OLTC/ off circuit tap links OLTC/ off circuit tap links OLTC/ off circuit tap links
Vector group Dyn 11 Dyn 11 Dyn 11
Insulation class F or H F or H F or H
Winding Copper or Aluminium Copper or Aluminium Copper or Aluminium
LV winding Foil winding Foil winding Foil winding
Cooling AN or ANAF AN or ANAF AN or ANAF
Losses As per ECBC. Low loss transformer on request As per ECBC. Low loss transformer on request As per ECBC. Low loss transformer on request

Applicable Standards

  •  IEC 60076 – 11 and IS 11171

RESOURCES