

The 225kVA Three Phase Pad Mounted Transformer is a reliable ground-mounted distribution solution designed for underground power networks, commercial facilities, and industrial applications. With a compact structure and high-efficiency design, it provides safe and stable voltage conversion for medium-voltage distribution systems.
The 225kVA Three Phase Pad Mounted Transformer is an oil-immersed distribution transformer designed for safe and reliable outdoor power distribution. Featuring a compact, tamper-resistant enclosure and high-efficiency core design, it delivers stable voltage conversion for residential, commercial, industrial, and renewable energy applications.
Built according to international standards, this transformer offers excellent durability, low energy loss, and flexible configuration options for utility networks and EPC projects worldwide.
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].

Residential Power Distribution Project – Southeast Asia
A 225kVA Three Phase Pad Mounted Transformer was supplied for a residential development project to provide reliable underground power distribution. The transformer supports stable electricity supply for residential buildings and public facilities, with a compact outdoor design suitable for urban environments.
Project Highlights
Location: Southeast Asia
Customer Type: Utility Company / EPC Contractor
| ated Power | 225kVA |
| Rating Primary Voltage | 4.16-34.5kV or customized |
| Secondary Voltage | 480GrdY/277 208GrdY/120 400GrdY/230 Customized(208Y/120 V to 4,160 V) |
| Frequency | 50/60Hz |
| Vector Group | Dyn1/Yyn0/Dyn11/Dyn5 |
| Winding Material | Aluminum/Copper |
| Efficiency | As IEEE,Doe 2016,CAS Std or Customized |
| Impedance Voltage | Nominal 3.5% 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 | 850L |
| Total Weight | 2500 kg |
| Outline Dimensions(L×W×H)in. | 1360×1480×1660 (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(15kV) | Ground Strap |
| Grounding Copper Bar | Nameplate |
| 1″‘Drain Valve With 3/8″ Sampler | IR Window |
| 1″ Upper Fill Valve Filter Press Connection | Terminal Box |
| Non-PCB decal | High Voltage Warning Signs |
It is mainly used for residential communities, commercial buildings, industrial facilities, renewable energy projects, and underground utility distribution networks.
The transformer can be customized with different primary and secondary voltage ratings, such as 11kV/0.4kV, 13.8kV/480V, 22kV/0.4kV, and 33kV/0.4kV.
Yes. It features a weather-resistant and tamper-resistant enclosure designed for safe outdoor operation in various environments.
Yes. We provide OEM solutions including voltage, frequency, accessories, protection devices, and enclosure configurations.
Our transformers are designed and tested according to international standards such as IEC 60076 and ANSI C57.12.
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