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100KVA Single Phase Pad Mounted Transformer

Compact, service-friendly 100 kVA single-phase pad-mounted transformer engineered for suburban distribution, small commercial blocks, and sheltered utility vaults. Designed to meet DOE-2016 efficiency levels and built to CSA/IEEE practice, this unit combines low-loss core technology, optional natural-ester (vegetable/FR3) fluid for enhanced fire safety, and a dead-front, load-protected layout that simplifies installation and field servicing. Ideal where footprint, reliability and regulatory compliance matter.

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Product Accessories

Digital Supervisory Interface: Monitors transformer performance in real time.

Automated Load Tap Adjustment Module: Enables seamless voltage control under varying loads.

Oil Filtration & Condition Assessment Kit: Optimizes oil purity and insulation integrity.

High-Voltage Terminal Block Assembly: Provides secure, customized connectivity.

Dual Thermal & Pressure Sensor Suite: Continuously tracks operational conditions.

Vibration Absorption Isolation Kit: Minimizes mechanical stress for enhanced durability.

Surge Voltage Suppression Unit: Protects against transient overvoltage events.

Advanced Data Logging System: Records operational metrics for performance analysis.

Robust Grounding & Bonding Assembly: Ensures safe, reliable installation.

Comprehensive Installation & Maintenance Guide: Offers detailed support for setup and upkeep.

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Product Specifications

Rated power

100 kVA (single-phase)

Primary (HV) options

up to 34.5 kV class; common patrol: 12.47Y/7.2 kV, 24.94Y/14.4 kV (custom taps available)

Secondary (LV)

240/120 V (standard) — other LV configurations on request

Cooling method

ONAN (oil natural, air natural) — KNAN or low-smoke natural ester options available

Efficiency / compliance

Meets U.S. DOE 2016 liquid-immersed distribution transformer efficiency tables for 100 kVA units.

Insulation fluid

Mineral oil standard; optional natural-ester (FR3) for improved fire safety and biodegradability.

Impedance

nominal 2.5% (typical; plant test value provided on routine test report)

HV BIL / LV BIL

industry typical (e.g., 95–125 kV HV BIL; 30–35 kV LV BIL) — to be confirmed per specified HV class

Temperature rise

65 °C top-oil / 80 °C winding (design dependent)

Standards & certification

Designed to CSA C227.3 / IEEE C57 family practices; UL/cUL options available.

Product Applications

Economy is more affordable

Supports reliable power distribution for railways, metro systems, and airport transit hubs.

Critical Transportation Networks
Supplies consistent, high-quality power for manufacturing and processing plants.

Heavy Industrial Facilities
Seamlessly integrates wind and solar installations into existing grids.

Distributed Renewable Energy Systems
Enhances city grid stability with precise voltage regulation.

Urban High-Voltage Substation Upgrades

Product Advantages

Regulatory & operational efficiency

factory-engineered to meet DOE-2016 efficiency thresholds for liquid-immersed distribution transformers—reduces operating cost and simplifies permit/utility approval.

Enhanced fire & environmental safety option

customers can select natural-ester dielectric (FR3) to gain higher flash/ fire points and full biodegradability — valuable for indoor vaults, sensitive sites and jurisdictions favoring low-risk fluids.

Serviceability and field-friendliness

dead-front pad layout, IR inspection windows (optional), external sampling and clearly grouped LV terminations cut outage and inspection time—designed for fast turnarounds and lower lifetime maintenance cost.

WellDone Power Transformer Plan Drawing

FAQ

What range of transformer products do you offer and which standards do they meet?

We manufacture a diverse array of transformers including Oil-Immersed Distribution Transformers, Dry Type Transformers, Power Transformers, Three Phase Pad Mounted Transformers, Single Phase Pad Mounted Transformers, Substation Transformers, and Pole Mounted Transformers. Our technical team, with nearly 20 years of industry experience, ensures that our designs comply with international standards such as ANSI, IEEE, DOE, CSA, AS, AZS, GOST, IEC, and more. Additionally, many of our products have obtained UL, cUL, and CSA certifications, affirming their safety and performance in global markets.
How do you ensure the quality and reliability of your transformers?

Our transformers are produced under a rigorous quality management system covering every stage from material selection to final testing. Each product comes with a minimum 24-month warranty, ensuring long-term safety and reliability. This commitment to quality has earned the trust of global customers and leading industry players.
What are your production lead times, customization options, and global market reach?

For standard models, our production lead time is typically 10 to 25 days, and we offer flexible OEM/ODM services for customized projects. We also tailor packaging solutions to meet specific customer requirements. Our transformers are exported worldwide—including North America, Europe, South America, Australia, Asia, and Africa—with successful partnerships involving renowned companies. For more details or personalized support, please contact us via email or WhatsApp.