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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, 2001 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....
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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...
Transformers News
WEG Building New Transformer Plant to Serve U.S. Customers
Jun 19, 2008 9:04 AM
New facility dedicated to serving utility, municipality, wind, and industrial markets...
Philips Lighting and Advance Transformer join to pledge $250,000 to NAED
Aug 4, 2005 8:58 AM
Money will go towards the organization’s education and research foundation...
Kuhlman Electric partners with Transformer Protection
Aug 2, 2005 10:04 AM
Kuhlman to provide installation and services for transformer venting unit...
Transformer Products
Harmonic mitigating transformers
Sep 24, 2007 10:15 AM
Guard III harmonic mitigating transformers curb harmonic currents, reduce transformer heating caused by harmonics that K-factor transformers do not, and improve upstream power quality...
Electronic transformers
Aug 24, 2007 5:08 PM
This redesigned series of electronic transformers complies with the new UL standard (2108) for low-voltage lighting systems...
GE Consumer and Industrial TransforMore Dry Type Transformer
Feb 9, 2005 10:33 AM
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