Single Phase Pole Mounted Transformer

Single Phase Pole Mounted Transformer Certificates

Daelim single phase pole mounted transformer has a series of certificates such as UL/cUL, CSA, and CESI. In addition, many years of market experience in North America and South America in the United States, Canada, Honduras, and other North America.

All units meets or exceeds IEC60076, ANSI/IEEE C57.12.20,C57.12.31, CSA C2.1-06, CSA C2.2-06, NEMA, DOE2016 and etc.Pole Transformer’s design is mainly used for electrical applications such as overhead power distribution loads and light industries and lighting. Frequently applied to Electric Utility Power Distribution Systems.

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Standard Features

—You can choose high-quality mineral oils with economy; you can also choose vegetable oils that are friendly to the environment to increase fire safety and electrical performance;

—Reaching or exceeding ANSI, NEMA, CSA, DOE efficiency values and other industry standards

–Quality System ISO 9001 certified.

––Paint system meeting or exceeding the performance of the ––lEEEC57.12.28 Standard (para. 5.3 to 5.5 included), including the salt spray test.

––Lifting lugs meeting all of the requirements of the CSA C2.1-06 and CSA C2.2-06 Standard (including features to prevent sling slippage).

––Computer aided design for mechanical &electrical calculations(C.A.D.)

––Core and coils designed for an optimum Total Ownership Cost (TOC)

––Low voltage leads with embossed markings on all units with 3 LV bushings for easy reading and permanent identification on selected ratings

––Provision for surge arrester bracket, bracket available as an option

–“Low-high-low” windings for increased short circuit strength, efficiency, and thermal strength

—Cover or sidewall mounted high voltage bushing(s) as required

—Wound core with step-lap joints for increased efficiency and lower noise levels

—Dual voltage designed to meet BIL and short circuit requirements on both connections.

–Automatic self-resealing pressure relief valve.

––Low voltage spade or clamp type (basket) terminals as required

—Multiple cover clamps to ensure proper sealing and minimize water retention on the cover edge

CSP type standards

––Primary protective link

––Surge arrester

––Secondary circuit breaker

––Secondary breaker operating handle with emergency overload reset

Learn more: CSP VS Conventional Transformer: Which Is Better?

Optional Accessories

–Externally-operable multiple voltage switches for safe operation

–Externally-operable tap changer switches for safe operation

–Special designs conforming to international specifications

–Dual voltage primary complete with externally operated voltage switch

–Extra creep bushing

–Surge arrester bracket

–Drain/sampling valve

–Filter press connections

–Porcelain low-voltage bushings

–Nonconductive transformer cover

–Temperature gauge (tank size limitations apply)

–Liquid level gauge (tank size limitations apply)

–Pressure vacuum gauge (tank size limitations apply)

Learn more: Telephone Pole Transformer

Single Phase Transformer Details

Single phase pole mounted transformer is a distribution-type transformer. Oil-filled single-phase overhead transformers designed and produced by Daelim are normally used for stepping utility distribution voltages (ranging from 2400 to 34500 volts) down to lower utilization voltages. Although some are used for stepping down to commercial and industrial voltages such as 277, 240/480, 2400, and 4800, most are used for stepping down to the single-phase voltage of 120/240.

Single Phase Transformer Specifications

The standard single phase transformer power rating is from 5-167kVA.Daelim can be customized according to your needs, the maximum capacity can reach 333kVA.The following table is the standard of single phase transformer specifications.

If you need single phase pole mounted transformers with other capacities, please send an email to sales@daelimbelefic.com.

Single Phase Pole Mounted Transformer Drawing

The figure below is single phase pole mounted transformer drawings designed by Daelim Transformer for Canadian and American customers. These are 25 kVA, 50 kVA, 75 kVA, and 167 kVA pole-mounted transformers. 

Single Phase Transformer Types

There are two types of single-phase transformers, one Conventional Type and the other CSP Type. Ratings range from 5 kVA to 167 kVA.

Conventional Type

The transformer is a cylinder-sealing structure. Each one is fixed with grounding devices, hooks, and supporting lugs that conform to ANSI standards, and or ore two high voltage bushing on the cover, low voltage bushing on the wall of the tank, and eyebolt, connecting terminals. The tap changer should be adjusted based on the instruction after the power is off.

CSP Type

This type of sing-phase transformer can protect itself from thunder and lightning, short circuits, and protect the transiting and distribution line from current failure because of self-malfunction.

Except for some similarities such as cylinder tanks, hooks, lifting lugs, grounding devices, nameplates, core, and winding with the conventional type. This type of sing phase transformer has characteristics and devices as follows:

One or two high-voltage bushings are on the cover with a fuse.

One or two arresters are installed on the wall of the tank, whose top end is near the voltage bushing, and connected to the bushing by a copper strip. One secondary breaker switch is above the winding inside the tank, and here are the operating handle, overload reset, and signal light.

All units are built in accordance with IEC60076, ANSI/IEEEC57.12.20, CSA C2.1-06, CSA C2.2-06 and etc.

Catalog Download

Single Phase Transformer PDF

Single Phase Pole Mounted Transformer Optional Accessory

Daelim also has single phase pad mounted transformer

Single Phase Transformer Test

Each single phase transformer was tested in strict accordance with the latest revision of applicable ANSI^TM, IEEE^TM, CSA, and NEMA with test reports available by serial number of the transformer

Routine tests are:

·Leak test

·Polarity and phase relation

·Resistance

·No-load losses and excitation current

·Load losses and impedance

·Applied voltage

·Induced voltage

·Full wave impulse

·Ratio test

Get it now: How to test a power transformer?

Single Phase Transformer Test Report

Single Phase Transformer Packaging

There are two packaging methods of single-phase transformers, one is wooden pallet packaging, and the other is wooden frame packaging.

If it is transported by the cabinet, it is usually packed with wooden frames, which are more stable and reliable.

In a 40-foot cabinet, a single-phase transformer with a capacity below 50kva can be equipped with 60 units; 75kVA single-phase transformer can be equipped with 48 units; 100 kVA single-phase transformer can be equipped with 36 units; 167 kVA single-phase transformer can be equipped with 21 units.

100 kVA Single Phase Transformer Diagram

Learn more: Ultimate Guide To Power Transformer Diagrams