Liquid-Filled Distribution Transformers

High-efficiency transformers for distribution systems.

Wafr Liquid-Filled Distribution Transformers provide reliable and efficient voltage transformation for utility, industrial, commercial and infrastructure applications.

Designed for Canadian 60 Hz power systems, the transformers are available for common primary distribution voltages including 4.16, 12.47, 13.2, 13.8, 24.9 and 34.5 kV.

For Canadian applications, Wafr transformers are offered with natural ester insulating fluid, providing enhanced fire safety, high biodegradability, and reduced environmental impact.

Key Specifications

Specification

Configuration

Typical Capacity

45 to 3,000 kVA

Primary Voltages

4.16 to 34.5 kV

Secondary Voltages

600Y/347 · 480Y/277 · 208Y/120 V

Frequency

60 Hz

Insulating Fluid

Natural ester liquid

Cooling

ONAN

Windings

Copper or aluminum

Construction

Core Technologies

Laminated silicon-steel, low-loss grain-oriented, wound-core or amorphous-core construction.

Natural Ester Fluid

Enhanced fire safety, high biodegradability and reduced environmental impact.

Canadian Efficiency

Designed and tested to applicable Canadian energy-efficiency requirements.

Core Technologies

Available core configurations include:

Conventional laminated silicon-steel core
Low-loss grain-oriented electrical steel
Wound-core construction
Amorphous-core construction
High-efficiency low-loss designs
No noise

Key Features

Copper or aluminum windings
Natural ester insulating liquid
De-energized tap changer
Pressure-relief device
Liquid-level gauge
Liquid-temperature indicator
Winding-temperature monitoring
Drain and sampling valve
Grounding provisions
Surge arresters
Neutral grounding provisions
Terminal chambers
Cable boxes
Bushing options
Temperature sensors
Remote monitoring
Stainless-steel hardware
Canadian cold-weather package

Ratings, Standards & Applications

Standard Ratings

Parameter	Available Ratings
Type	Liquid-filled distribution transformer
Phases	Three-phase
Frequency	60 Hz
Typical capacity	45–3000 kVA
Primary voltages	4.16 / 12.47 / 13.2 / 13.8 / 24.9 / 34.5 kV
Secondary voltages	600Y/347 V 480Y/277 V 208Y/120 V
Other secondary voltages	Available
Insulation class	Up to 34.5 kV
Cooling	ONAN
Windings	Copper or aluminum
Insulating fluid	Natural ester liquid
Taps	De-energized taps standard
Typical connection	Delta-Wye grounded
Installation	Indoor / Outdoor
Efficiency	Canadian energy-efficiency compliant

Canadian Efficiency

Wafr liquid-filled distribution transformers are designed and tested to applicable Canadian energy-efficiency requirements.

High-efficiency and optimized total-ownership-cost configurations are available for utility and industrial customers.

Standards & Certification

Applicable standards include:

CSA C802.1 — Minimum Efficiency Values for Liquid-Filled Distribution Transformers
IEEE C57.12.00 — General Requirements for Liquid-Immersed Distribution and Power Transformers
IEEE C57.12.90 — Test Code for Liquid-Immersed Distribution and Power Transformers
IEEE C57.91 — Loading Guide for Mineral-Oil-Immersed Transformers
Applicable CSA transformer requirements
CSA C22.1 — Canadian Electrical Code, Part I, for installation

Applications

Utility distribution
Industrial plants
Mining
Oil & gas
Commercial buildings
Institutional facilities
Water and wastewater
Renewable-energy projects
Infrastructure
Manufacturing facilities

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Talk to Our Team

Start with a simple general inquiry to start the conversation. Or tell Wafr what equipment you need, where it is going and when the project needs it.

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Electrical

Mechanical

Thermal

Liquid-Filled Distribution Transformers

Key Specifications

Construction

Core Technologies

Ratings, Standards & Applications

Standard Ratings

Canadian Efficiency

Standards & Certification

Applications

Normal Use Conditions

Available Options

Talk to Our Team