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power transformers


Pad-Mounted Substation

Designed for reliable underground power distribution, the Pad-Mounted Substation integrates an oil-immersed distribution transformer with medium-voltage switching, protection, and low-voltage connections in a compact, ground-mounted enclosure. Its tamper-resistant construction, accessible cable compartments, and space-efficient design support dependable service across residential, commercial, and industrial distribution networks.

100–2,500 kVA

Rated Capacity

Up to 35 kV

Rated Voltage

Pad-Mounted

Type

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technical specifications


category

specification

rated capacity

100–2,500 kVA

rated voltage

MV: Up to 35 kV; LV: 0.4 kV / 0.48 kV / Application-Specific

vector group

Dyn11 / Yyn0 / Application-Specific

impedance

Typically 4–6%, Depending on Rating and Design

cooling method

ONAN

insulation level

According to IEC 60076-3 or Applicable IEEE Insulation Requirements

tap changer

Off-Circuit Tap Changer

frequency

50 Hz / 60 Hz

applicable standards

IEEE C57.12.34 / IEEE C57.12.28 / IEC 60076 Series, as applicable

operating conditions


category

specification

ambient temperature

−25°C to +40°C, Depending on Design

relative humidity

Up to 95% (Non-Condensing)

altitude

≤1,000 m

installation environment

Outdoor Ground-Level Distribution Installations

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