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Electrical

Energy Efficiency

ENERGY EFFICIENT MOTORS

The 2007 Energy Act: Good News for Motor Users
NEMA Premium® becomes the minimum efficiency standard for many motors in 2010, making the U.S. standards the highest in the world. But, perhaps you should specify NEMA Premium before then. This article discusses the Energy Independence and Security Act of 2007 and explains the sections of that Act dealing with motors.
Energy Independence and Security Act
Dr. Edwin Brush explains the Energy Independence and Security Act as it pertains to electric motors. NEMA Premium is the minimum efficiency standard in most cases.
How EISA Will Affect Your Motor Policy
The Energy Independence and Security Act of 2007 (P.L. 110-140, usually called “EISA”) will go into effect on December 19, 2010. If you specify or purchase electric motors, the law will affect how you do your job. If you own or manage a business, it will ― or at least, it can ― improve your company’s bottom line by cutting your energy costs for years to come.
Introduction to Premium Efficiency Motors
This article describes the several loss categories in motors, how premium efficiency motors reduce these losses, and shows several tables with purchase and operating cost comparisons, as well as paybacks available when selecting premium efficiency motors as replacements for, or in place of standard models.
Motor Loss Categories
Dr. Edwin Brush of BBF and Associates explains the loss categories in an electric motor using a motor cutaway.
Above-NEMA Premium Motors
Explanation of motors that exceed NEMA Premium efficiency, particularly cast copper rotor motors. Each of the losses categories is explained, and how each is reduced.
Benefits of NEMA Premium
Randy Breaux explains that these motors run cooler than standard motors, can improve up-time.
NEMA Premium vs. Above-NEMA Premium Motors
Super premium motors, some featuring a cast copper rotor, are available that offer even lower losses than NEMA Premium, exceed the minimum efficiency required and save even more.
Replace Rather Than Rewind
When a motor fails, that’s the ideal time to consider a more efficient replacement. Rewinding an older, inefficient motor only produces a rewound inefficient motor.
IEEE 841 Electric Motors
An explanation of IEEE 841 industrial duty motors relative to standard NEMA Premium motors.
Go Beyond Minimum Requirements
NEMA Premium^® Motors Mean Big Savings, Fast Payback and Higher Reliability
This article explains reasons why you want to consider Premium Efficiency Motor and contains several examples of energy and dollar savings available with NEMA Premium^® Motors.
Copper Motor Rotors
Super premium motors are now available.
MotorSlide Calculator™
Now available: A sliderule tool for quickly approximating the annual operating cost of a specifc electric motor, or for calculating the approximate annual savings possible when comparing a more efficient motor versus another, less efficient model of comparable size. The calculator also has a built-in table of NEMA Premium^® nominal efficiencies versus EPAct minimums (up to 200 hp), for quick reference.

Please call (888) 480-MOTR for a free copy (U.S. addresses only.)

COPPER BUSBAR

The Copper Busbar Sizing Guide
Sources, ampacity tables, and etc.

CASE STUDIES

Copper-Rotor Motors + Variable Frequency Drives Maximize Savings at a Brass Mill
This summary describes the results of a copper-rotor motor evaluation program undertaken by the New York State Energy Research and Development Authority (NYSERDA) at the Rome, New York, brass mill of Revere Copper Products, Inc.
Copper-Rotor Motors + Variable Frequency Drives Maximize Savings at Water Treatment Plant
This summary describes the results of a copper-rotor motor evaluation program undertaken by the New York State Energy Research and Development Authority (NYSERDA) at the Albany County Sewage District’s (ASCD) North Plant in Menands, New York.
Bowling Pin Manufacturer Fights Rising Energy Costs With Premium-Efficiency Motors
QubicaAMF strikes just the right score with NEMA Premium© motors. Located in a high energy cost region, this famous bowling pin manufacturer found high efficiency motors were part of their energy solution.

More Case Studies...

TRANSFORMERS

DOE Mandates Higher Efficiency for Distribution Transformers, Sees $Billions in Benefits
This article describes the new minimum energy efficiency regulations that govern distribution transformers starting in 2010.
Temperature Rise and Transformer Efficiency
This article describes the relationship between temperature rise and transformer efficiency, expected life, overload capacity, and samples of the savings and paybacks of more efficient transformers.
Introduction to Transformer Losses
A and B values are commonly used in certain industries to describe losses in a transformer. This article explores what A and B values are, how they are calculated, and how they combine into Total Owning Cost (TOC).
Proper Transformer Sizing and Copper Windings Mean Lowest Total Owning Cost, Fastest Payback
Transformers are frequently oversized for the load impressed on them , and not used to the capabilities that were paid for. This article details how proper transformer sizing is important to economic payback, and how proper loading affects operating losses and total cost.
Transformer Life-Cycle Cost (Total Owning Cost)
This article examines the two categories of transformer losses, no-load loss and load loss, and explains the term "Total Owning Cost". Several detailed examples of total owning cost (also called life-cycle cost) are demonstrated using A and B values, actual core and coil losses in watts, and the time value of money. The TOC method described is applicable to any long-lived apparatus.
High-Efficiency Utility Transformers Mean Lowest Total Owning Cost
Economics of energy efficient utility-type transformers.
High-Efficiency Copper-Wound Transformers Save Energy and Dollars
An analysis of the often overlooked energy-efficiency qualities of dry-type transformers.

WHITE PAPERS

TRENDS in ENERGY EFFICIENCY

More Info in Cable for Telecommunications section.

IEEE Power Engineering Society Policy Statement on Energy & Environment

ENERGY EFFICIENCY ARTICLES

It's a Law of Physics: Copper Saves You Money
Advertisement on the relationship between conductor size and energy costs in electrical systems.
One Wire Size Up Means Big Savings
Installing wire only one size larger than required by code increases energy savings dramatically.
Do You Have an Energy Efficiency Story to Tell?
CDA is interested in hearing how your company has saved money by choosing copper.
A Systems Approach to Calculating Energy Savings
These pages are provided to help you calculate the best, most efficient designations for wiring, motors and transformers.

Upcoming Events

NECA
Oct 3 - Oct 5, 2010
Boston, MA

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Highlights

Busbar section includes AC and DC ampacity tables, mechanical properties, sources, and additional engineering information.

Learn more about High Efficiency Motors & Transformers CD-ROM

Energy Efficiency Case Studies:
Furniture Manufacturer Realizes 7-month Payback With All-Copper Transformer

It’s Proven!!
Using Improved Motors Produce Huge Savings and Fast Paybacks.
Find out how...

Do You Have an Energy Efficient Story to Tell?
CDA is interested in hearing how your company has saved money by choosing copper. More info…

Order Energy Efficiency Educational and Technical Publications