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Single-Phase Pole-Mounted Transformers

Canadian overhead distribution transformers.

Wafr Single-Phase Pole-Mounted Transformers provide reliable voltage transformation for Canadian overhead utility and rural distribution systems.

The transformers are optimized for 60 Hz operation and common Canadian utility primary voltages.

Key Specifications

Specification

Configuration

Typical Capacity

10 to 167 kVA

Common Ratings

15 / 25 / 37.5 / 50 / 75 / 100 / 167 kVA

Typical Primary

7.2 / 7.62 / 14.4 / 19.9 kV phase-to-ground

Typical Secondary

120/240 V

Frequency

60 Hz

Insulating Medium

Natural ester liquid

Windings

Copper or aluminum

Construction

Sealed Tank

Sealed transformer tank with weather-resistant finish and pressure-relief device.

Mounting & Bushings

Pole-mounting brackets, high-voltage bushing, low-voltage bushings and tank grounding provisions.

Protection

Internal primary fuse, current-limiting protection, surge arresters and wildlife protection options.

Construction

Features can include:

  • Sealed transformer tank
  • High-efficiency core
  • Weather-resistant finish
  • Pole-mounting brackets
  • High-voltage bushing
  • Low-voltage bushings
  • Tank grounding provisions
  • Pressure-relief device
  • Internal protection options

Key Features

  • Optimized for 60 Hz Canadian utility systems
  • Natural ester insulating liquid
  • High-efficiency core
  • Sealed, weather-resistant tank
  • Copper or aluminum windings
  • Pole mounted

Ratings, Standards & Applications

Standard Ratings

ParameterAvailable Ratings
TypeSingle-phase pole-mounted
Frequency60 Hz
Typical capacity10–167 kVA
Common ratings15 / 25 / 37.5 / 50 / 75 / 100 / 167 kVA
Primary voltagesUtility specific
Typical primary7.2 / 7.62 / 14.4 / 19.9 kV phase-to-ground
Typical secondary120/240 V
CoolingONAN
Insulating mediumNatural ester liquid
WindingsCopper or aluminum
MountingPole mounted

Standards & Certification

Applicable standards include:

  • CSA C227 series
  • CSA C802.1 where within applicable efficiency scope
  • Applicable IEEE C57 distribution-transformer standards
  • Utility-specific transformer requirements
  • CSA C22.1 — Canadian Electrical Code

Applications

  • Utility residential distribution
  • Rural electrification
  • Residential subdivisions
  • Agricultural facilities
  • Remote facilities
  • Small commercial loads
  • Municipal infrastructure

Normal Use Conditions

Available Options

Protection Options

  • Internal primary fuse
  • Current-limiting protection
  • Surge arresters
  • Secondary circuit breaker where specified
  • Wildlife protection
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