Transformer Basics

What others are reading...

Most Recent Transformer Articles

You might also be interested in...

Transformer Installation
Transformer Calculations
Transformer Testing
Transformer Grounding
Transformer Maintenance

Also see...

Transformer News
Transformer Products

Here is what others are reading about electrical transformers on EC&M.

The Basics of Transformers

Aug 1, 2003 12:00 PM, By R. Fehr, P.E., Engineering Consultant

By raising and lowering voltage levels, transformers make power systems versatile...

The Basics of Autotransformers

Oct 1, 1999 12:00 PM, DeDad, John A.

An autotransformer is a transformer having part of its winding included in both the input and output circuit. A simple autotransformer connection is shown...

The Basics of Delta-Wye Transformers

Dec 1, 2000 12:00 PM, By C. Sankaran

The electrical configuration of the delta-wye transformer makes it the most popular transformer connection in the world. When it comes to making proper...

Basics of Transformer Voltage Efficiency

Sep 1, 2000 12:00 PM, By Mark Lamendola

Efficiency is a function of a transformer's power losses, but it's easy to lose sight of what transformer efficiency means in the real world....

The Basics of Transformer Voltage Regulation

Aug 1, 2000 12:00 PM, By Mark Lamendola

It's easy to lose sight of what voltage regulation means in the real world....

Find more on Transformer Basics

Can't find what you're looking for? Search for Transformer, or browse through our Transformer Archives.

Electrical Transformer Installation

Transformer Installation Made EasySort of

Jul 1, 2002 12:00 PM, By Mike Holt, NEC Consultant

OK, it won't be easy, but these five steps will help your next transformer installation run more smoothly....

The Ups and Downs of Transformer Installations

Nov 30, 2004 12:27 PM, By Mike Holt, NEC consultant

Step up your knowledge of NEC transformer requirements...

Transformer Installation Basics

Nov 1, 1999 12:00 PM, By Scott Falke

You must power a new office in Warehouse 5. To do this, you need a 3kVA transformer (277V single-phase to 120V, 2-wire) for lighting and a receptacle...

Getting the most from your transformer installation

Oct 1, 1999 12:00 PM, Morgan, Robert B.

When your transformer arrives on-site, various assembly and testing procedures must be carried out before placing the unit in service.Your large MVA-sized...

Guidelines for installing transformers, part 1.

Jun 1, 1999 12:00 PM, Morgan, Robert R.

When your transformer arrives on site, various procedures should be carried out to assure successful operation.The successful operation of a transformer...

Guidelines for installing transformers - Part 2.

Jul 1, 1999 12:00 PM, Morgan, Robert B.

The successful operation of a transformer is pendent on proper installation as well as on proper design and manufacture. Part 1 of this article, which...

Knowing liquid-filled transformer installation requirements.

Jun 1, 1999 12:00 PM, Loyd, Richard E.

Knowing NEC, NESC, insurer, and listing agency installation requirements will help you select the best type of insulating medium for the application.Increasing...

Electrical Transformer Calculations

Understanding The Basics of Wye Transformer Calculations

Dec 1, 2004 12:00 PM, By Mike Holt, NEC Consultant

Add this information to what you know about delta transformers and you may be ready to solve power quality problems...

Electrical Transformer Testing

Testing isolation transformers for attenuation.

Dec 1, 1999 12:00 PM, Lewis, Warren L.

Measuring common-mode current, not voltage, will provide a real-world measure of isolation transformer attenuation.How can the performance of electrostatic...

ElectricalTransformer Grounding

Should You connect Transformer Ground to Building Ground?

Mar 1, 1999 12:00 PM, By Fred Hartwell, Senior Editor

Should You connect Transformer Ground to Building Ground? Q. What are good transformer grounding techniques? I would especially like to know about connecting...

Electrical Transformer Maintenance

Sensible transformer maintenance.

Jun 1, 1999 12:00 PM, Raymond, Charles T.

Correct interpretation of maintenance data from transformers is vital for increased reliability, long life, and advanced information on possible need...

Sensible transformer maintenance. (part 2)

Feb 1, 1999 12:00 PM, Raymond, Charles T.

Following specific checking and maintenance guidelines as well as conducting routine inspections will help ensure the prolonged life and increased reliability...