

The 150kVA Three Phase Pad Mounted Transformer is a compact, ground-mounted distribution transformer designed for reliable power distribution in residential, commercial, and industrial applications. It provides safe and efficient voltage transformation with a tamper-resistant enclosure, making it ideal for underground distribution networks and utility projects.
150kVA Three Phase Pad Mounted Transformer is an oil-immersed outdoor distribution transformer designed for reliable medium-voltage to low-voltage power conversion in commercial, industrial, and utility distribution networks.
Featuring a compact pad-mounted structure, high-efficiency core design, and durable weather-resistant enclosure, it provides safe installation, stable power supply, and long-term reliable operation for underground and outdoor electrical systems.
Designed according to IEC 60076 / IEEE C57 standards, this transformer supports customized voltage configurations and protection solutions to meet different project requirements.
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].

Product: 150kVA Three Phase Pad Mounted Transformer
Application: Commercial Building Power Supply
Voltage: 13.8kV / 400V
Frequency: 50Hz
Supplied 150kVA Three Phase Pad Mounted Transformers for a commercial power distribution project, providing a compact and reliable solution for outdoor installation and stable electricity supply.
✔ Three-phase power distribution solution
✔ Safe outdoor pad-mounted installation
✔ High efficiency and low maintenance
✔ Reliable operation in tropical environments
✔ Customized according to project requirements
Delivered a durable transformer solution to support continuous and stable power supply for commercial facilities and local distribution networks.
| Rated Power | 150 kVA |
| 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 | 350L |
| Total Weight | 2400 kg |
| Outline Dimensions(L×W×H)in. | 1250×1480×1750 (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 |
150kVA Three Phase Pad Mounted Transformer is designed for reliable outdoor power distribution in:
Designed for safe outdoor installation, high efficiency, low maintenance, and long-term reliable operation.
It is an outdoor ground-mounted distribution transformer designed to step down medium voltage electricity to low voltage for commercial, industrial, and utility power distribution systems.
It is commonly used in commercial buildings, industrial facilities, utility distribution networks, renewable energy projects, and infrastructure applications.
Common configurations include 11kV, 13.8kV, 15kV, 24.9kV, and 34.5kV primary voltage with customized secondary voltage options such as 400V, 415V, and 480V.
The transformer can be manufactured according to international standards, including IEC 60076 and IEEE C57 series, based on customer and project requirements.
Yes. The pad-mounted design features a weather-resistant enclosure, providing safe and reliable operation in outdoor environments.
Yes. We provide customized solutions including voltage ratio, frequency, winding materials, accessories, protection devices, and enclosure design.
Each transformer undergoes factory testing, including winding resistance test, transformer ratio test, insulation resistance test, no-load loss test, load loss test, and dielectric strength test.
With proper installation and maintenance, the transformer can provide reliable operation for more than 25 years.
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