Compact / Unitised Substation

Unitised substations are designed for locations where space and safety are a concern, population density is high, such as urban centre. The unitised substation is divided into three sections or compartments: Medium Voltage, Transformer, and Low Voltage Switchboard. Unitised substations are designed in accordance with IS 14786 / IEC 61330 standards with a degree of protection for IP23 for the Transformer and IP54 for MV & LV compartments or as per customer requirement.

Assured Features

  • Completely factory-built
  • Superior aesthetics
  • Convenience in portability
  • Ready to install & commission
  • Compact in size
  • Minimal maintenance
  • Suitable for rooftop & basement

Technical Specifications

MV Compartment
MV Switchgear  3.3 KV to 38 KV
Type of Switchgear LBS / SFU / Breaker / RMU / VCB
Insulation Medium SF6 Gas or Vacuum
Tripping Fuse / Relay
Short Circuit Rating Up to 20 KA or as per customer requirement
Transformer Compartment
Type of cooling Oil Immersed / Dry Type
Ratings UPTO 3 MVA
Voltage Class UPTO 38 kV
Phase / Frequency 3 Phase / 50 or 60 Hz.
Vector Group Dyn1 or Dyn5 or Dyn11 or any specific.
LV Compartment
LV Switchgear ACB’s, MCCB’s ,MCB’s , HRC Fuse.
Current Rating Up to 4000 Amps
Voltage 433 Volts
No. of Poles 3 / 4
Short Circuit Rating 50KA or as per customer requirement