No.1 Pad Mounted Transformer Manufacturer in China since 2000

We are a top manufacturer for pad mounted transformer in China.,

We are

  • ISO 9001 Certificated Factory
  • Over 20 years manufacturing Experience
  • Fully understood all technical requirement of IEEE/ANSI Standard
  • In-house testing lab for routine & type test
  • Provide 24 months warranty of quality and performance

What is a Pad Mounted Transformer

Pad mounted transformer is a type of transformer that integrates the transformer body, switchgear, fuses, tap changer, and related auxiliary equipment. The high-voltage wiring scheme includes terminal type and ring network type, which can adapt to the requirements of various power supply systems. Moreover, it has the advantages of compact structure, small volume, low land occupation, low investment, and fast installation. It can be used both indoors and outdoors, and is widely used in residential areas, airports, high-rise buildings, commercial centers, industrial & ming factories, enterprises, hospitals, schools , data centers and solar & wind farms etc. It can penetrate the load center to the maximum extent and improve the quality of power supply. And it can meet various configuration requirements such as user energy calculation, reactive power compensation, low-voltage branching, etc., making it convenient and flexible to use.

Our Capacities for Pad Mounted Transformers

loop feed pad mounted transformer
Loop Feed Pad Mounted Transformer
pad mounted transformer-1-1
Three-core/Three-legged Pad Mounted Transformer
loop feed pad mounted transformer
Three-core/Five-legged Pad Mounted Transformer

Main Features of Our Pad Mounted Transformer

Our Pad Mounted Transformers featured with low noise level, high energy efficiency, custom connection & its neutral configurations.

Pad-mounted Distribution Transformer

Product Feature Box

ISO 9001 Certificated Company
ISO 9001 Certificated Company
IEEE Logo
Referring to IEEE Standard
UL Certificate
UL Certificated
DOE 2016 Efficiency
Fully Comply with DOE Standard

Our Manufacturing Facilities for Pad Mounted Transformers

State of the art manufacturing facilities, which make us have a complete product chain from fabrication of oil tank,aluminum or copper winding, welding & painting.

manufacturing facilities
best quality distribution transformer

Stringent Quality Control for our Pad Mounted Transformers

At our ISO 9001 & UL certificated factories, We paid a highest attention to product quality from its selction of raw materials for these pad mounted transformers, manufacturing process to final testing & packings for the transformers. We fully undestood that a bad quality product will ruin our own brand. 

Instant Technical Support

Based on the dedications of our engineering team, we are able to provide you a drawing for pad mounted transformer in 2 or 3 working days. and Instant response to all technical & commercial questions you have;

Technical Support
Pad mounted transformer

Fast Production & Delivery Time

Once you approved the drawings of pad mounted transformer, we will do our best to proceed your order; we can finish its production and testing in 30 or 45 days; Through our efficient logistic system, we can make a possible delivery in another 30 or 40 days to each corner of the world.

Looking for Manufacturer Reps

We fully understood a most important role of a local rep for this pad mounted transformer; and We are always looking for manufacturer reps to strengthen our local presence.

manufacturer representative

Some Basic Information You Need To Know for a Pad Mounted Transformer

ad mounted transformer
Single Phase pad mounted transformer

Some general knowledge about a pad mounted transformer

Firstly, for a pad mounted transformer, it has two main types;
single phase pad mounted transformer , it has two sub types. One is for a single door lifting up to open and the other one is having a HV compartment and a LV compartment , which is isolated by a steel barrier, opening on the front and requiring a pentanolts to open.

Three phase pad mounted transformer, it also has two main categories, radial feed application and loop feed application.

Second, vector group for a pad mounted transformer.
It comes two main types, Delta connection, is short for D for primary side and d for secondary side

Star connection , is short for Y for HV winding connection and y for LV winding connection.

Z & z is for interconnected star

N & n refers to neutral wire bringing out or not.

A small letter a, refers to an auto transformer

Number 1, 2 or 3 referring to phase displacement angle.

That is why we always see Yyno, Dyn11 and YNa0d11 etc.

For example, YNa0d11, it is sanding for
a star connection in HV bushing with neutral wire brought out, an auto transformer with a 0 degree displacement and delta connection in LV winding and leading HV with 30 degree.

Third, HV bushings for a pad mounted transformer

It has two categories, live front and dead front HV bushings;

For dead front bushings, it is associated with a bushing insert, an elbow connector and an insulated protective cap. While for live front HV bushing on a pad mounted transformer, it can be connected to with a cable lug directly.

Fourth, it is about Cooling method for a pad mounted transformer.

It comes for ONAN,ONAF, OFWF& OFAF and WF; most customers in most projects, they are using ONAN, oil natural and air natural.

Fifth, for LV bushings, there three main types, Stup Type Bushing, Epox Spade Bushing and Stud Type Bushing.

For a epox spade bushing, it is referring to NEMA standard, having 4,6,8,10 or 12 holes depending on specific conditions for a project.

These are some basic information about a pad mounted transformer, there still are some more components for a pad mounted transformer , we will talk about in other posts.

Certificated by
Approved & Certificated by
  • “We highly recommend PowerTel as a reliable supplier for distribution transformer that is honest, helpful, and trustworthy. We have full confidence in PowerTel and would not hesitate to suggest it to any prospective company.”

    Craig from UZ

Why choose our pad mounted transformers

As a Top pad mounted transformer manufacturer in China, our dedicated engineers fully understood all technical requirements of pad mounted transformer according to IEEE/ANSI Standards and even DOE requirements. They are capable of answering any technical questions you have for these pad mounted transformers. And they are able to provide you a custom design of these transformers on your indeed needs for different applications, no matter where it is a commercial & industrial buildings, Mining or a bitcoin mining factory, hardened data centers, solar & wind farms etc.

In our ISO 9001 & UL Certificated Factories, we have a strict process to select our suppliers or vendors, thus to assure highest quality of raw materials for these pad mounted transformers;
Complete quality control from fabrication of oil tank,aluminum or copper winding, welding & painting; and in-house testing facilities are making us have a double check of the quality of your ordered transformers.

Fast to provide the drawings of the pad mounted transformer (normally, it takes 2 or 3 working days);
Instant response of all technical & commercial questions you have;

Fast delivery time; we will provide the transformer drawings in 2 or 3 working days and only take us 30 or 45 days to manufacture and do routine tests for these pad mounted transformers. Through our modern logistics system, we have capabilities to make a deliver in 5 to 30 days to each corner in north & Latin American countries.

Based on these excellent performances, In last 10 years, we have successfully delivered over 20,000 pad mounted transformers (single phase & three phase) throughout the world;