Pad Mounted Substations are designed for use in distribution application as well as for dedicated loads. Pad mounted substations are easy to install and are of low cost. These are basic & simplest configuration required for distribution substation. Pad Mounted Substation are designed in accordance with IS 14786 / IEC 61330 standards with degree of protection for IP 54 or as per customer requirement.
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Specification Oil Type Dry Type
Tapping Off Circuit Switch Off Circuit Link
Insulation Class A 'F'
Temperature Rise Oil / Winding up to 55/650C Winding up to 1300C
Temperature Protection OTI, WTI RTD


MV Compartment
MV Switchgear Upto 22 KV
Type of Switchgear LBS / SFU / Breaker / RMU / VCB
Insulation Medium SF6 Gas or Vacuum
Tripping Fuse / Relay
Short Circuit Rating Upto 20 KA or as per customer requirement
Transformer Compartment
Installation Outdoor / Indoor Ground Mounted
Type of cooling Oil Immersed / Dry Type
Rating 63 to 1000 KVA
Voltage 6.6 to 22/0.433 KV or any specific
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 or HRC Fuse
Current Rating Up to 2000 Amps
Voltage 433 Volts
No. of Poles 3 / 4
Short Circuit Rating 50KA or as per customer requirement
Basic Enclosure Components
  • MS/ CRC Sheet fabricated Enclosure as per IS 14786
  • Load Balancing Lifting Hooks
  • Collapsible hinge mounted doors
  • Corrugated tank for Transformer
  • Safety door switches
  • Inter connecting MV & LV Bus bars
  • Powder coated paint, Shade - RAL 7032 or as per customer requirement