Dry-type
Distribution Transformers

Transform your energy with the
cast-resin technology leader

Dry-type transformers developed and designed in accordance with international standards (IEC, VDE, DIN EN & EN)

Key Features

  • Low-voltage windings with width equal to length of the coil
  • Vacuum-potted single foil-type high voltage coils manufactured by Siemens AG
  • Conductor strip and insulation material bonded together by heat
  • Clamping frame and truck for lengthwise or sidewise travel
  • Insulation with combination of epoxy resin and quartz powder
  • Coil support system to insulate core and windings from mechanical vibration
  • High-voltage tapping links permitting adjustment to system conditions
  • Delta connection tubes with high-voltage terminals
  • Thick-layer external coating

Benefits

  • Innovative clean design
  • High safety
  • High reliability
  • Superior return on investment
  • Environmentally friendly

Applications

  • Buildings
  • Rail/ Metro lines
  • Offshore platforms
  • Oil refineries
  • Mining operations

Advantages

  • Elimination of partial discharge
  • Reduction of axial short-circuit forces
  • High mechanical stress tolerance
  • Low maintenance
  • Moisture proof
  • Flame-resistant
  • Self-extinguishing
  • No toxic gas emissions
  • 94% Recyclable
© Siemens AG

Product Specification

Rated Power Up to 6.3 MVA
Voltage Class Up to 36 kV
Enclosure IP 21 Protection class, Other IP class on request
Winding Material Copper/ Copper, Aluminum/ Aluminum (or as requested)
Basic Insulation Level Up to 200 kVp
Phases 3 Phase
Tappings 2± x 2.5% (or different range or as requested) with tap link
Short Circuit Impedance As per IEC 60076 or as requested
Rated Frequency 50 Hz or 60 Hz
Vector Groups According to IEC standards
Material Thermal Class Insulation According to IEC 60085 class F
Temperature Rise As per IEC 60076 or as requested
Type of Cooling AN, AF as requested
Short-circuit Withstand Ability The transformers are designed to withstand the thermal and the dynamic effects resulting from a secondary short-circuit in accordance with IEC 60076-5
Sound Level IEC 60076-10 or NEMA – TR1 or as requested
Installations Indoor
HV/ LV Terminals HV Terminals: Plug-in or resin bushings with or without cable box

LV Terminals: Cast resin, busbars with or without cable box
Cable box if required can be air insulated or fully insulated as per BS EN 503366:2002 (IP55 class or as requested)

Accessories

Standard

  • Temperature controller
  • Rating and diagram plate
  • Lifting lug
  • Earthing terminal
  • Bushings
  • Skid under-base

Optional

  • Rollers

Type-test Reports

SL. NO

Power Rating (kVA)

Voltage (kV)

Certificate No.

Certification  Agency

1

500

11

18693A

ASTA

2

1000

11

B0024416

CESI

3

1500

11

B0024415

CESI

4

1500

22

18694A

ASTA

5

2000

22

B0031101

CESI

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