1 Phase/3 Phase Pad Mounted Distribution Transformer, 25kVA/100kVA/250kVA

Single phase pole-mounted dstribution transformer

1 phase pole-mounted dstribution transformer

ATO pad mounted distribution transformers include single-phase and three-phase models designed for reliable power distribution in utility, commercial, and industrial applications. These distribution transformers feature a compact, sealed design, low energy loss, and low noise operation. With capacities ranging from 25 kVA to 2500 kVA, they meet the needs of various projects and systems, providing efficient and durable solutions for modern power distribution networks. Leveraging advanced manufacturing capabilities and customized service options, steptransformer.com offers high-quality floor-mounted transformer solutions to meet the needs of power projects worldwide.

Technical Specifications

Single Phase Pad Mounted Distribution Transformer

Typical Dimensions and Weights (C.R.G.O Core)

Rating (kVA)	HV (kV)	Tap (%)	LV (V)	Loss (W)		Dimension (mm)			Weight (kg)
Rating (kVA)	HV (kV)	Tap (%)	LV (V)	No Load	Full Load	A	B	C	Oil Weight	Total Weight
25	7.62	±2*2.5%	120–240	115	420	680	830	950	175	405
37.5				130	520	700	850	980	190	423
50				150	660	730	875	1000	205	459
75				190	980	800	895	1030	245	557
100				245	1230	840	950	1105	317	697
167				380	1560	910	990	1185	389	925
250				550	2000	975	1090	1215	462	1215

25	19.92	±2*2.5%	120–240	115	420	680	830	950	175	405
37.5				130	520	700	850	980	190	423
50				150	660	730	875	1000	204	464
75				190	980	800	895	1030	243	562
100				245	1230	840	950	1105	311	694
167				380	1560	910	990	1185	386	930
250				550	2000	975	1090	1215	462	1215

Note: The above date is only subject to our standard design, special reqirement can be customized.

3 Phase Pad Mounted Distribution Transformer

Typical Dimensions and Weights (C.R.G.O Core)

Rating (kVA)	HV (kV)	Taps (%)	LV (V)	Loss (W)		Dimension (mm)			Weight (kg)
Rating (kVA)	HV (kV)	Taps (%)	LV (V)	No Load	Full Load	A	B	C	Oil Weight	Total Weight
75	12.47	±2*2.5%	480/277 208/120	240	1230	1480	1550	1575	180	700
112.5				320	1730	1530	1560	1585	205	905
150				410	2230	1550	1565	1595	220	1005
225				420	3150	1660	1585	1600	240	1295
300				680	3850	1680	1600	1600	300	1505
500				980	5380	1690	1605	1600	350	2003
750				990	7600	1735	1700	1650	605	2791
1000				1180	10500	1800	1700	1650	660	3335
1500				1680	15000	1800	1700	1730	780	4250
2000				2000	19200	1850	1750	1730	880	4630
2500				2550	25800	1850	1750	1800	1500	4950

Note: The above date is only subject to our standard design, special reqirement can be customized.

Pad Mounted Dist Transformer Features

Compact Space-Saving Design

American-style box-type structure with a compact footprint, reducing installation space requirements and eliminating the need for a dedicated distribution room.

Reliable Sealed Structure

Fully sealed and insulated design ensures safe operation, while the corrosion-resistant enclosure provides long-term outdoor durability.

Flexible Distribution Capability

Supports direct power supply and ring network integration with flexible switching for reliable power distribution.

Advanced Protection System

Equipped with dual fuse full-range protection and overload-capable cable heads to improve safety and reliability.

Easy Operation & Maintenance

The 10kV plug-in cable head supports load-current operation, enabling flexible switching and easier maintenance.

Low-Loss Long-Life Performance

Features low power loss, low noise, high safety, and extended service life for efficient and reliable long term operation.

Pole Mounted DTR Transformer Advantages

Compact Integrated Design: Compared with other distribution transformers, the pad mounted distribution transformer integrates multiple components into a single enclosure, resulting in a more compact structure, smaller footprint, and easier installation. Its lightweight and enclosed design helps reduce installation complexity while providing a neat and reliable solution for outdoor power distribution.
Efficient and Reliable Performance: Featuring low energy loss, low noise operation, and high operational reliability, this pad transformer ensures stable power supply and long-term performance. The integrated design also improves protection capability and reduces maintenance requirements, making it suitable for utility, commercial, and industrial distribution applications.

Applications

Due to its excellent performance, reliable operation, and flexible installation characteristics, ATO pad mounted distribution transformer is widely used in a variety of power distribution applications, including schools, hospitals, industrial enterprises, airports, railway stations, residential communities, commercial centers, and mining facilities. Its compact sealed structure, low maintenance requirements, and stable power supply capability, suitable for outdoor distribution networks where safety, efficiency, and long-term reliability are essential.

FAQs

1. What is a pad mounted distribution transformer?

A pad mounted distribution transformer is a ground-mounted electrical transformer installed on a concrete pad to reduce medium voltage electricity to lower voltage levels for power distribution. It is enclosed in a secure, weather-resistant cabinet and is commonly used for underground electrical systems.

2. What are the advantages of a pad mounted distribution transformer?

Pad mounted distribution transformers provide safe operation, compact structure, low maintenance requirements, and excellent protection against environmental conditions. They are ideal for applications where space, safety, and reliable power distribution are important.

3. Single phase VS. three phase pad mounted distribution transformer

The main difference is the number of phases in the electrical system. A single-phase pad mounted transformer is designed for lower power requirements and residential or light commercial applications, while a three-phase pad mounted transformer is used for higher power loads in commercial, industrial, and utility distribution systems.

4. What voltage ratings are available for pad mounted distribution transformers?

Pad mounted distribution transformers are available in various voltage configurations and can be customized according to different utility, commercial, and industrial requirements, including medium voltage input and low voltage output options.

5. How do I choose the right pad mounted distribution transformer?

Choosing the right pad mounted distribution transformer requires considering factors such as rated capacity, voltage level, phase type, installation environment, efficiency requirements, and specific load conditions.

6. How is a pad mounted distribution transformer installed and maintained?

Pad mounted distribution transformers are installed on concrete foundations with proper grounding and protection systems. Regular inspections of electrical connections, insulation performance, and transformer components help ensure safe and reliable operation.