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NPC ELECTRIC Transformers Products

Completely self-protected Single Phase Pole Mounted Transformer

nsure maximum reliability and fault protection with our Completely Self-Protected (CSP) Single Phase Pole Mounted Transformers. These advanced units integrate all necessary protective devices directly within the transformer tank, offering unparalleled safety and simplified overhead distribution systems. Our CSP Single Phase Pole Mounted Transformers include internal primary fuses, secondary circuit breakers, and lightning arresters, providing comprehensive protection against overloads, short circuits, and lightning strikes. This integrated design reduces equipment clutter on poles, lowers installation costs, and significantly minimizes power outages caused by common faults. Trust our compliant and intelligent CSP solutions for resilient, self-sufficient single-phase power delivery to modern communities.
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In-Depth Analysis

Pole mounted transformers are built to deliver high efficiency, reliable performance, and advanced safety, helping businesses reduce energy costs while ensuring stable power supply. With future-ready adaptability for renewable energy and smart grid applications.

Comparative Analysis of Efficiency and Loss

Compared to the industry average, transformers exhibit lower losses and higher efficiency across the entire load range.

Load Efficiency Comparison(%)

No-load Loss Comparison(W)

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High-efficiency Core Design

High magnetic permeability and low loss silicon steel sheets are used and processed by special process to reduce hysteresis loss and eddy current loss and improve conversion efficiency.

Improved Magnetic Permeability
+30%
Reduced Iron Loss
-35%
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Multiple Protection Systems

IP65 protection grade design combines multiple protection measures such as anti-corrosion, anti-UV, anti-condensation and anti-small animal intrusion.

Waterproof Performance
IP65
Anti-Corrosion Ability
15 years+
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Ultra-low Noise Technology

A special shock-absorbing structure, low-noise fans, and optimized heat dissipation design ensure operating noise is far below industry standards.

Noise Reduction
-15dB
Suitability for Residential Areas
Excellent
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Intelligent Cooling System

The heat dissipation system with adaptive temperature control automatically adjusts the heat dissipation efficiency according to the load and ambient temperature to reduce energy consumption.

Heat Dissipation Efficiency
+40%
Temperature Stability
±2℃
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Safety Wiring System

Insulated protective cover and anti-misoperation design ensure personnel safety during installation and maintenance and reduce accident risks

Insulation Grade
Class H
Safety Protection
IP2X
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Intelligent Monitoring

An optional remote monitoring system is available to monitor operating status, temperature, load and other parameters in real time, and supports fault warning and remote diagnosis.

Data Collection Frequency
one times a minute
Fault Warning Accuracy
96%

Environmental Adaptability Analysis

Pole mounted transformers have been rigorously tested and can operate stably under various harsh environmental conditions.

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Temperature Range

-40℃ ~ +55℃

Can work normally in extreme high and low temperature environments

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Humidity Adaptation

0 ~ 100% RH

Including condensation environment, no frost requirement

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Seismic Resistance Level

IEC 60068-2-57

Suitable for earthquake-prone areas

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Altitude

≤3000m

More than special design

Why Choose Us

Discover why our Pole mounted transformers are trusted worldwide for efficiency, safety, and reliability.
Pole Mounted Transformers Manufacturer

Integrated Fault & Lightning Protection

NPC Electric CSP Single Phase Pole Mounted Transformers offer integrated fault and lightning protection, setting a new standard for reliability in overhead power distribution. Unlike conventional units, CSP transformers include internal primary fuses, secondary circuit breakers, and lightning arresters, all housed within the transformer tank. This comprehensive, self-contained design automatically clears most primary and secondary faults, preventing cascading failures and protecting downstream equipment. By choosing our fully protected CSP transformers, you drastically reduce localized power outages and enhance the overall resilience of your single-phase electrical network, ensuring stable and uninterrupted service for consumers.
Pole Mounted Transformers Types

Enhanced Grid Reliability & Reduced Outages

The inherent protection of our CSP Single Phase Pole Mounted Transformers leads to enhanced grid reliability and significantly reduced power outages. When a fault occurs, the internal protective devices isolate the affected section quickly and automatically, preventing the entire feeder line from tripping. This localized protection minimizes service interruptions for a broader customer base, improving overall customer satisfaction and operational efficiency. By deploying our reliable CSP transformers, utilities can achieve superior power quality and continuity of supply, creating a more robust and responsive single-phase distribution system even in areas prone to electrical disturbances.
Pole Mounted Distribution Transformers

Lower Installation Costs & Streamlined Aesthetics

Our CSP Single Phase Pole Mounted Transformers simplify installation and contribute to lower overall installation costs. By integrating protective devices directly into the transformer, the need for separate external fuses, cutouts, and lightning arresters on the pole is eliminated. This not only reduces the number of components to purchase and install but also streamlines the pole-top appearance, creating a cleaner and less cluttered aesthetic. Choosing our cost-effective CSP solutions reduces labor time, simplifies inventory management, and enhances the visual appeal of your overhead electrical infrastructure, offering both economic and aesthetic benefits.
NPC Strict Transformer Testing & Quality Control

Simplified Maintenance & Diagnostics

CSP Single Phase Pole Mounted Transformers are designed for simplified maintenance and diagnostics, making field operations more efficient for utility personnel. With all protective elements self-contained, troubleshooting is often quicker as fewer external components need inspection. Internal indicators can provide immediate feedback on fault conditions, facilitating faster problem identification and resolution. This integrated approach reduces the complexity of routine checks and fault-finding missions. By opting for our easy-maintenance CSP transformers, you enhance worker safety, reduce diagnostic time, and ensure quicker restoration of single-phase power, boosting operational efficiency.

Product Show

Explore the detailed design and practical application scenarios of pole mounted transformers
Pole Mounted Transformer Side structure

Pole Mounted Transformer Side

Transformer side structure

10kVA Pole Mounted Transformer

10kVA Pole Mounted Transformer

10kva transformer font view

Pole Mounted Transformer Design

Pole Mounted Transformer Design

transformer font design

Pole Mounted Transformer Back

Pole Mounted Transformer Back

transformer back design

Testing and Certification

Tested with precision and certified to meet international standards as well as strict industry requirements.
Bare Cable(AAC,AAAC,ACAR ACSR) Test Report

Bare Cable Test Report

SGS Inspection Report

SGS Inspection Report

Certificate of Acceptance

Certificate of Acceptance

ISO Quality Management System Certificate

ISO Quality Certificate

ISO Environmental Certificate

ISO Environmental Certificate

ISO Occupational Certificate

ISO Occupational Certificate

UL Laboratory Certificate

UL Laboratory Certificate

UL Product Certificate

UL Product Certificate

Project Cases

Pole mounted transformers have been successfully applied in many projects and have been highly praised by customers.
Mexico Residential Area For 20kVA Pole Mounted Transformer

Mexico Residential Area

Completed

Provide stable and reliable power conversion solutions for the smart factory to meet diverse production needs.

Country:Mexico

Model:20kVA Pole Mounted Transformer x 2

"Simple and firm installation, stable operation"
167kVA Pole Mounted Transformer for Guyana

Guyana Data Center

Completed

Ensure the power safety of surrounding residents and meet daily work needs

Country:Guyana

Model:167kVA Pole Mounted Transformer x 15

"High efficiency, easy installation, and dependable operation."
75kVA Pole Mounted Transformer for Colombia

Colombia Factory

Completed

NPC transformers provide safe, efficient, and reliable power distribution in Surinam.

Country:Colombia

Model:75kVA Pole Mounted Transformer x 10

"High efficiency, easy installation, and dependable operation."

Technical Advantages

● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions

FAQ From Customers

How does a pole mounted transformer work?

A pole mounted transformer works by stepping down high-voltage electricity from overhead power lines to a lower voltage suitable for consumer use. It operates on electromagnetic induction, transferring energy between primary and secondary windings through a magnetic core. Most distribution transformers are oil immersed transformers, which provide insulation and cooling to ensure stable and efficient power delivery to homes and businesses.

How are pole mounted transformers installed?

Pole mounted transformers are installed on utility poles using steel brackets and crossarms designed to safely support their weight. Proper installation requires grounding, surge protection, and adherence to local electrical codes. Both single phase and three phase pole mounted transformers must be positioned at safe clearances from conductors and buildings. Professional installation ensures safety, minimizes energy loss, and extends transformer service life.

Are pole mounted transformers safe?

Yes. Pole mounted transformers are designed with robust enclosures, protective fuses, and lightning arresters to ensure maximum safety and reliability. Modern oil immersed transformers use flame-retardant insulating fluids, and completely self-protected transformers include built-in circuit breakers and relays. Regular inspection and maintenance help prevent leaks or overheating, ensuring safe operation in residential and industrial power distribution systems.

What is the efficiency of a pole mounted transformer?

The efficiency of a pole mounted transformer typically ranges from 97% to 99%, depending on its design and load conditions. High-efficiency three phase transformers and oil immersed pole mounted transformers reduce energy losses and operating costs. NPC Electric designs transformers with optimized magnetic cores and low-loss materials to enhance performance, making them ideal for reliable distribution transformer networks.

How do you maintain a pole mounted transformer?

Proper transformer maintenance is crucial for extending service life and ensuring reliability. Routine checks on pole mounted transformers include oil level inspection, bushing cleaning, leakage detection, and load monitoring. Oil immersed transformers require periodic oil testing for dielectric strength and moisture content. Scheduled maintenance helps prevent failures, reduces downtime, and guarantees safe operation of distribution transformers in overhead power systems.

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