Distribution Transformer Power Transformers
Last Updated: April 1, 2025
Description
Distribution transformers are pole-mounted devices that provide the final step-down action in a power distribution system. They are designed to supply relatively small amounts of power to residences and other locations connected to a power grid. These transformers typically have high power and continuous voltage ratings, ensuring efficient delivery of electricity to end-users .
Working Principle
Distribution transformers operate on the principle of electromagnetic induction, where power is transmitted from one electrical circuit to another through mutual induction. The primary and secondary coils are magnetically linked but not electrically connected, allowing for the transformation of voltage levels while maintaining constant frequency. These transformers work exclusively with alternating current (AC) because a varying magnetic field is necessary to induce voltage .
Applications
Distribution transformers are commonly used in residential areas to step down the high voltage from power lines to a lower voltage suitable for household use. They are also found in commercial and industrial settings where they supply power to various electrical systems and equipment. Specific examples include their use in lighting systems, small and large appliances, and automation and industrial processing controls .
Advantages over other Power Transformers
Distribution transformers are specifically designed for efficiency in delivering power to end-users. They are optimized for minimal energy loss during the final step-down process, making them more efficient for localized power distribution compared to larger substation transformers, which are used for broader transmission purposes .
Limitations
One limitation of distribution transformers is their capacity to handle only relatively small amounts of power, which makes them unsuitable for high-power applications. They are also typically designed for specific voltage levels, limiting their flexibility in applications requiring variable voltage outputs .
Considerations
When selecting distribution transformers, several factors should be considered. Initial costs can vary based on the transformer's specifications and cooling methods, such as air, oil, or water cooling. Operating expenses are generally low due to their efficiency, but durability and maintenance are crucial for long-term performance. Regular maintenance is necessary to ensure accuracy and prevent failures, which can lead to costly replacements. Additionally, the choice of transformer should align with the specific voltage and power requirements of the intended application to optimize performance and cost-effectiveness .
from Radwell International
ULTRAMAX ® HPS DISTRIBUTOR BALLAST REPLACEMENT KIT, QUAD, MAGNETI, 86587. FREE 2 YEAR RADWELL WARRANTY [See More]
- Transformer Type: Distribution Transformer
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // 11KV 15KV Outdoor Prefabrical Substation Transformers High Voltage Compact Electrical Box Type Substation [See More]
- Transformer Type: Distribution Transformer; Isolation; Power Transformer; Substation Transformer; Three Phase Transformers
- Mounting: Floor mounted
- Cooling Method: Air (optional feature); Oil (optional feature); Air conditioning cooling
- Construction: Laminate
from Radwell International
GENERAL PURPOSE TRANSFORMER, TYPE QB SERIES, DISTRIBUTION TYPE, 6000 VOLT-AMPS VA RATING, 133V PRIMARY VOLTAGE, 120V SECONDARY VOLTAGE, 2.0 KVA, 50/60 HZ, 1 PHASE, WALL MOUNT, SCREW TERMINALS, NEMA 3R, ENCLOSED/ENCAPSULATED. FREE 2 YEAR RADWELL WARRANTY [See More]
- Transformer Type: Distribution Transformer
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // 1000KVA to 3000KVA transformer [See More]
- Transformer Type: Distribution Transformer; Isolation; Power Transformer; Three Phase Transformers
- Mounting: Floor mounted
- Cooling Method: Air; Fan cooling Natural cooling
- Construction: Laminate
from Radwell International
TRANSFORMER, HPS FORTRESS SERIES, 240/480 VAC, 1000 VOLT AMP, ENCLOSED, DISTRIBUTION TYPE, WALL MOUNT, 176 °F MAX TEMP, SINGLE PHASE. FREE 2 YEAR RADWELL WARRANTY [See More]
- Transformer Type: Distribution Transformer
- Input Voltage: 480
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // ANSI/UL/Transformer//1500KVA 1600KVA SCB Dry Transformer [See More]
- Transformer Type: Distribution Transformer; High Voltage Transformer; Isolation; Neutral Grounding Transformer; Power Transformer; Three Phase Transformers
- Mounting: base mounted
- Cooling Method: Air; Fan cooling Natural cooling
- Construction: Laminate
from Radwell International
DISTRIBUTION TRANSFORMER, 240 X 480 VAC PRIMARY VOLTS, 120/240 VAC SECONDARY VOLTS, FOUR WINDINGS, 1-PHASE, 60 HZ, 10KVA. FREE 2 YEAR RADWELL WARRANTY [See More]
- Transformer Type: Distribution Transformer
- Input Voltage: 240 to 480
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // 1KVA 2KVA 3KVA 4KVA 5KVA Transformer Without box [See More]
- Transformer Type: Autotransformer; Distribution Transformer; Isolation (optional feature); Power Transformer; Single Phase Transformer; Three Phase Transformers (optional feature)
- Mounting: Chassis; Floor mounted
- Cooling Method: Air; Fan cooling Natural cooling
- Construction: Laminate
from Radwell International
TRANSFORMER, DRY-TYPE DISTRIBUTION,600V PRIMARY, 1 PHASE, 3 KVA,ENCLOSURE HXWXD:15.00X15.00X15.00 IN. . FREE 2 YEAR RADWELL WARRANTY [See More]
- Transformer Type: Distribution Transformer
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // 250KVA Step up Down Transformer Price 250 Kva for CNC Factory for Office Building for Shopping Mall [See More]
- Transformer Type: Distribution Transformer; Isolation; Medical Transformer; Power Transformer; Rectifier Transformer; Three Phase Transformers
- Mounting: Floor mounted
- Cooling Method: Air; Fan cooling Natural cooling
- Construction: Laminate
from Radwell International
DISCONTINUED BY MANUFACTURER, DRY TRANSFORMER, DISTRIBUTION TYPE, THREE PHASE, 30 KVA, 60HZ, CLASS AA, 480 DELTA H.V., 42-6115 FRAME, 208Y/120 L.V. . FREE 2 YEAR RADWELL WARRANTY [See More]
- Transformer Type: Distribution Transformer
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // 3 Phase 3kva 5kva 7kva 10kva 15kva 30kva Step Down up Isolation Transformer [See More]
- Transformer Type: Distribution Transformer; Isolation; Power Transformer; Three Phase Transformers
- Mounting: Floor mounted
- Cooling Method: Fan cooling Natural cooling
- Construction: Laminate
from Radwell International
DISTRIBUTION TRANSFORMER 120 X 240 PRIMARY VOLTS 120/240 SECONDARY VOLTS - FOUR WINDINGS SINGLE PHASE, 60 HZ. FREE 2 YEAR RADWELL WARRANTY [See More]
- Transformer Type: Distribution Transformer
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // ANSI/UL/Transformer//3500KVA 3000 KVA Cast Resin Dry Type Transformer SCB13 SCB14 SCB15 [See More]
- Transformer Type: Distribution Transformer; High Voltage Transformer; Isolation; Neutral Grounding Transformer; Power Transformer; Three Phase Transformers
- Mounting: base mounted
- Cooling Method: Air; Fan cooling Natural cooling
- Construction: Laminate
from Radwell International
DISTRIBUTION TRANSFORMER, 120 X 240 PRIMARY VOLTS, 120/240 SECONDARY VOLTS, FOUR WINDINGS, SINGLE PHASE, 60 HZ. FREE 2 YEAR RADWELL WARRANTY [See More]
- Transformer Type: Distribution Transformer
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // 380V 480V 420V 440V Manufacturer Direct Hot Selling Three Phase Dry Type Voltage Transformer [See More]
- Transformer Type: Distribution Transformer; Isolation; Power Transformer; Single Phase Transformer; Three Phase Transformers
- Mounting: Floor mounted
- Cooling Method: Air; Natural cooling
- Construction: Laminate
from Siemens Energy Sector
GEAFOL Cast-Resin Transformers have been in successful service since 1965. Many licenses have been granted to major manufacturers throughout the world since then. Over 100,000 units have proven themselves in power distribution or converter operation all around the globe. Rated power of Cast-Resin... [See More]
- Transformer Type: Distribution Transformer; Power Transformer
- Mounting: Pad-Mounted
from GE Grid Solutions
Transformers. GE offers a wide range of transformer solutions for the utility, industrial, commercial, residential, and energy markets. These products & solutions feature flexible, reliable, and robust designs to support a wide range of applications. With units operating in some of the most... [See More]
- Transformer Type: Autotransformer; Encapsulated Coil Transformer; Distribution Transformer; High Voltage Transformer; Power Transformer; Rectifier Transformer; Substation Transformer
- Mounting: Chassis; Pad-Mounted; Pole Mounted
- Cooling Method: Air; Oil
from Toshiba America, Inc.
Toshiba's Oil Insulated Transformer (OIT) is a highly durable and reliable power transformer for electric utilities, electrical transmission, and generation stations. Since pioneering its first transformer in 1894 Toshiba has expanded into a world leader in transformers with an installed base that... [See More]
- Transformer Type: Distribution Transformer
- Mounting: Pad-Mounted
- Cooling Method: Oil
- Power Rating (VA): 1.00E8 to 8.00E8
from Datatronics™
Features. 12 - 220V, 50-60Hz. Multi Tap Secondary,. MG5196acr2. Industrial, Commercial [See More]
- Transformer Type: Distribution Transformer
- Primary Frequency: 50 / 60 Hz
- Mounting: Chassis
from Schaffner EMC Inc.
Schaffner is the leading supplier of dry-type transformer products for distribution and trackside power applications. Strong technical expertise and vast application experience allow us to design the best solutions for these demanding applications. Our products are installed in traction power... [See More]
- Transformer Type: Distribution Transformer
- Power Rating (VA): 1.00E7
- Cooling Method: Cooling Methods: AN, AF, WD
- Output Type: AC
from Dynapower Corporation
Dynapower is pleased to offer the ULTRACAST line of cast coil transformers, designed for applications that demand high reliability and continuous performance. Developed in the United States, the ULTRACAST process locks the windings in a very strong, high dielectric, epoxy resin, thus protecting the... [See More]
- Transformer Type: Encapsulated Coil Transformer; Distribution Transformer
- Power Rating (VA): 300000 to 1.00E7
- Cooling Method: Air
- Standards / Compliance: UL
from Siemens Energy Sector
Small Power Transformers are distribution transformers from 5 to 40 MVA with a maximum service voltage of 145 kV. They are used as network transformers in distribution networks. This type of transformer is normally a 3-phase application and designed according to national and international standards. [See More]
- Transformer Type: Distribution Transformer; Power Transformer; Single Phase Transformer; Three Phase Transformers
- Mounting: Pad-Mounted
from Toshiba America, Inc.
Toshiba's Gas Insulated Transformer (GIT) is the most technologically advanced solution for hydro-power and underground substations, densely populated cities, mission critical substations, and offshore substations. Toshiba GITs are insulated with SF 6 gas rather than traditionally hazardous oil... [See More]
- Transformer Type: Distribution Transformer
- Mounting: Pad-Mounted
- Cooling Method: Gas Insulated
- Power Rating (VA): 4.00E8