75kVA Single Phase Pad Mounted Transformer - ZISHENG - Professional Oil Immersed Transformer Manufacturer

75kVA Single Phase Pad Mounted transformer

75kVA Single Phase Pad Mounted transformer

The 75kVA single phase pad mounted transformer is designed for medium-capacity underground residential and light commercial distribution, transforming primary voltages such as 12470GrdY/7200, 24940GrdY/14400, 34500GrdY/19920, or dual-voltage setups to secondary 120/240V split-phase or 240V. The compartmental dead-front enclosure with tamper-resistant doors, mineral oil insulation, and ONAN cooling supports a 65°C temperature rise for dependable performance under residential peak demands.

Key Features:

  • High Efficiency
  • Compact Design
  • Low Maintenance
  • Reliable Performance

The 75kVA Single Phase Pad Mounted Transformer is a compact oil-immersed distribution transformer designed for underground distribution systems. It integrates the transformer, high-voltage compartment, and low-voltage compartment into a tamper-resistant enclosure, providing safe, reliable, and efficient power distribution for residential communities, commercial developments, utilities, and renewable energy projects.

Manufactured to ANSI/IEEE and IEC standards, it delivers excellent energy efficiency, low operating losses, and dependable long-term performance in outdoor environments.

About ZISHENG ELECTRICAL

Zisheng are a professional 19+ years manufacturer in producing Oil-Immersed Transformers, Compact Substation, Pad Mounted Transformers, Pole Mounted Transformers and Dry Type Transformers. We own the certificates of ISO/CE/IEC 60076 and TUV Rheinland.
Transformers undergo rigorous FAT and type testing, support voltage/capacity customization. Welcome to consult for Catalog and Product. you can contact us at email [email protected].

Project Case | Residential Power Distribution Project

Product: 75kVA Single Phase Pad Mounted Transformer

Location: United States

Application: Residential Underground Distribution Network

Project Overview

A residential development project in the United States deployed 48 units of 75kVA Single Phase Pad Mounted Transformers to support underground power distribution across newly constructed neighborhoods. The transformers were selected for their compact footprint, tamper-resistant enclosure, and reliable long-term performance.

Designed to meet ANSI/IEEE standards, each unit provides stable voltage regulation, low energy losses, and safe operation, ensuring a dependable electricity supply for homes and community facilities.

Product Specifications

  • Capacity: 75kVA
  • Phase: Single Phase
  • Primary Voltage: 13.8kV
  • Secondary Voltage: 120/240V
  • Frequency: 60Hz
  • Cooling Method: ONAN
  • Standard: ANSI/IEEE

Project Benefits

  • Reliable underground power distribution
  • High energy efficiency with low operating losses
  • Safe, tamper-resistant outdoor installation
  • Reduced maintenance requirements
  • Long service life in residential applications
Rated Power 75 kVA
Rating Primary Voltage 11950Delta or Customized
Secondary Voltage 480-240V
240-120V
277V
Customized
Frequency 50/60Hz
Vector Group Ii0,Ii6
Winding Material Aluminum/Copper
Efficiency As IEEE,Doe 2016,CAS Std or Customized
Impedance Voltage Nominal 2% or Customized 1.1-5.75%
Altitude ≤1,000m or Customized
Color ANSI 70 Light gray/Munsell 7GY3.29/1.5 or customized etc
Tank material Mild Steel, 304 Stainless Steel
Insulating Oil Weight 205 kg
Total Weight 650 kg
Outline Dimensions(L×W×H)in. 1100×900×710(mm)
Lifting Lug ELSP Fuse
Hinged Door BAY-O-NET Fuse
Parking Bracket Tap Changer
Tank Cover Oil Level Gauge
L.V Bushing (4-Hole ) Pressure Relief Valve
Two/Four Position Load break Switch Vacuum Pressure Gauge
HV Grounding Copper Bar Terminal Block
Temperature Indicator Door Handle
H.V Bushing Well Ground Strap
Grounding Copper Bar Nameplate
1″‘Drain Valve With 3/8″ Sampler Non-PCB decal
1″ Upper Fill Valve Filter Press Connection High Voltage Warning Signs
  • Residential Communities
  • Utility Distribution Networks
  • Commercial Buildings
  • Schools & Hospitals
  • Solar Power Projects
  • Public Infrastructure

It is an oil-filled distribution transformer installed at ground level for underground power distribution systems, commonly used in residential neighborhoods, commercial facilities, and utility networks.

Typical configurations include:

  • Primary Voltage: 7.2kV, 11kV, 13.8kV, 22kV, 33kV
  • Secondary Voltage: 120/240V, 240/480V, or customized

Yes. We offer customized voltage ratings, winding materials, insulating oil, enclosure color, nameplates, and accessories to meet project requirements.

Our pad mounted transformers are manufactured according to:

  • ANSI C57 Series
  • IEEE Standards
  • IEC 60076

Yes. Each transformer undergoes comprehensive routine testing, including ratio, insulation, winding resistance, no-load loss, load loss, and induced voltage tests. A complete factory test report is supplied with every unit.

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