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   Transformers, Ferroresonant

A transformer is an electrical device that transfers energy from one circuit to another by magnetic coupling with no moving parts. A transformer comprises two or more coupled windings, or a single tapped winding and, in most cases, a magnetic core to concentrate magnetic flux. An alternating current in one winding creates a time-varying magnetic flux in the core, which induces a voltage in the other windings. Transformers are used to convert between high and low voltages, to change impedance, and to provide electrical isolation between circuits.



Bronze Partners
3S Industries, Co., Inc.
AAC Inc
Abbott Technologies, Inc.
Acme Electric Corporation
Agere Systems
Allied Components International
Alpha Technologies Inc.
Amecon, Inc.
American Magnetics
Andover, Incorporated
ATC-Frost Magnetics / Standex Electronics
Berkshire Transformer
Bey Electronics Corp.
C & C Jetronic
CET Technology
Charles Industries, Ltd
Cletronics Inc.
CoEv, Inc.
Coil Specialty Company
Communication Coil Inc.
Controlled Power Company
CTM Magnetics
Custom Magnetics Inc.
Deltona Transformer Corp.
EAG Electronics
EK Magnetics
Electro Assemblies Corp.
Electronic Specialists Inc.
Endicott Coil Company, Inc.
EPCO Products Inc.
Flat Transformer Technology Corp.
Forest Electric Company
Gettysburg Transformer Corp.
Glen Magnetics Inc.
Grand Transformer, Inc.
Hammond Manufacturing Company
Hitran Corp.
Inductive Technologies
Integrity Technology Corporation
ISL Products International Limited
Kaschke U.S.A. Inc.
Keytronics, Inc.
Lenco Electronics, Inc.
Mag-Con Engineering, Inc.
Magnetic Design Labs
Magnetic Windings Co., Inc.
Magnetika, Inc
Magnetran Inc.
Mainstar Industries Limited
Mitchell Electronics Corp.
Neeltran, Inc.
Nicollet Technologies Corp.
Northlake Engineering, Inc.
On-Line Power Inc
Peter W Dahl Co Inc
Pico Electronics, Inc.
Precision Electronics
Precision Inc
Quality Transformer Corp.
Renco Electronics, Inc.
Schott Magnetics
Schumacher Electric Corp.
Sigma Electronics Inc
Signal Transformer
Sola Hevi-Duty
Standex Electronics Inc.
STK International
Tabtronics Incorporated
Tamura Corp of America
TECO Corp.
Thomas Magnetix
Thordarson Inc.
Thordarson Meissner Incorporated
Tranex Inc
Transformer Engineering Corp.
Triad Magnetics (formerly Magnetek)
V & F Transformer Corp.
Vishay Intertechnology
Vitec Electronics Corp.
WinTron Technologies
Zambre Company, Inc.
Fix & Prog. Sinewave Oscillators - Frequency Devices

 

Books
Research on regulated ferroresonant transformers: Interim report
Arthur Woodfin Kelley

Power Electronics Design Handbook: Low-Power Components and Applications (EDN Series for Design Engineers)
Nihal Kularatna

Excerpt - page 191: "... these are further buffered by special output filters, etc. 6.3.2.4 Ferroresonant Regulators Ferroresonant transformer or constant voltage transformer (CVT) has been commercially available for ..."
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Power Electronics: Converters, Applications, and Design
Ned Mohan, Tore M. Undeland, and William P. Robbins

Excerpt - page 357: "... equipment from conducting high-frequency noise into the utility grid. Isolation transformers with electrostatic shields not only ... and the common-mode voltage spikes. Ferroresonant transformers provide voltage regulation as well as filtering of the ..."
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Upgrading and Repairing PCs (16th Edition)
Scott Mueller

Excerpt - page 1205: "... supply. A truly outstanding SPS adds to the circuit a ferroresonant transformer, which is a large transformer with the capability to store ..."
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Electrical Power Systems Quality
Surya Santoso, H. Wayne Beaty, Roger C. Dugan, and Mark F. McGranaghan

Excerpt - page 61: "... available and the levels where they can be applied. 3.4.1 Ferroresonant transformers Ferroresonant transformers, also called constant-voltage transformers (CVTs), can handle most ..."
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The Complete E-Commerce Book: Design, Build, and Maintain a Successful Web-Based Business
Janice Reynolds

Excerpt - page 73: "... UPS A "hybrid UPS" is a device that uses a ferroresonant transformer to maintain a constant output voltage between the power source ..."
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Burning Chrome
William Gibson

Excerpt - page 134: "... lithium batteries, tantalum capacitors , RF connectors, breadboards, barrier strips, ferroresonant transformers, spools of bus bar wire.... One box is filled with ..."
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Audel Electrician's Pocket Manual
Paul Rosenberg

Excerpt - page 164: "... of this type of design (see Fig. 7-23). Some use ferroresonant transformers, and some use tap-switching transformers as the isolating means. Ferroresonant ..."
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Reference Data for Engineers Radio, Electronics, Computer & Communications (Reference Data for Engineers)
Mac E. Van Valkenburg and Wendy M. Middleton

Excerpt - page 448: "... protection may be obtained by impregnating and dip-coating or molding transformers in polyester or epoxy resins; ... of oil when heated . FERRORESONANT TRANSFORMERS Ferroresonant transformers, also known as constant- voltage transformers or ..."
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Computer Networking Illuminated (Jones and Bartlett Illuminated)
Diane Barrett

Excerpt - page 740: "... as necessary, when line power is available. ^ Hybrid or ferroresonant UPS systems: This device conditions power using a ferroresonant transformer. This transformer main- tains a constant output voltage even with ..."
See more references to Transformers, Ferroresonant in this book.
Modern Cable Television Technology, Second Edition (The Morgan Kaufmann Series in Networking)
Walter Ciciora, James Farmer, David Large, and Michael Adams

Excerpt - page 479: "... component of a nonstandby, line frequency power supply is the ferroresonant transformer. Though its magnetic design is beyond the scope of this ..."
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RV Repair and Maintenance Manual 4 Ed
Bob Livingston

Excerpt - page 23: "... ripples and surges are minimal. The older versions used a ferroresonant design (transformers), and the newer units use high-frequency switching (solid-state electronics ). ..."
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CET Study Guide
Joseph A. Risse

Excerpt - Back Matter: "... triac circuit with a resistive load. B. a power supply ferroresonant transformer circuit. C. an SCR circuit with an inductive load. D. ..."
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Practical Data Communications for Instrumentation and Control (IDC Technology (Paperback))
Steve Mackay, Edwin Wright, and John Park

Excerpt - page 144: "... T4 ypicalrces of noise -Filtering Remedy AC voltage varies Improved ferroresonant Conventional Notching of ac waveform form transformer ferroresonant transformer Missing half cycle in ac wavefails form Notching ..."
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Tool and Manufacturing Engineers Handbook, Vol 1 : Machining
Tom Drozda

Excerpt - page 248: "... on/off cycling of 1/0. Other systems may require isolation or ferroresonant transformers to protect them from line transients. These types of costs ..."
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Practical Industrial Data Networks: Design, Installation and Troubleshooting (IDC Technology (Paperback))
Steve Mackay, Edwin Wright, Deon Reynders, and John Park

Excerpt - page 31: "... noise Filtering remedy Comments AC voltage varies Improved ferroresonant Conventional ferroresonant transformer transformer fails Notching of AC wave form Improved ferroresonant Conventional ..."
See more references to Transformers, Ferroresonant in this book.
The Complete E-Commerce Book:Design, Build & Maintain a Successful Web-based Business
Janice Reynolds and Roya Mofazali

Excerpt - page 45: "... UPS A "hybrid UPS" is a device that uses a ferroresonant transformer to maintain a constant output voltage between the power source ..."
See more references to Transformers, Ferroresonant in this book.
The Industrial Electronics Handbook
J.David Irwin

Excerpt - page 369: "... This regulation is provided either electronically or by a tapped transformer or a ferroresonant transformer. Normal mode, or line to line, transients are prevented ..."
See more references to Transformers, Ferroresonant in this book.
Practical Industrial Data Communications: Best Practice Techniques
Deon Reynders, Steve Mackay, and Edwin Wright

Excerpt - page 24: "... Sources of Filtering Remedy Comments Noise AC voltage varies Improved ferroresonant Conventional ferroresonant transformer fails transformer Notching of AC Improved ferroresonant Conventional ferroresonant transformer ..."
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Power Quality Primer (Electrical Engineering Primer S.)
Barry W. Kennedy

Excerpt - page 118: "... Figure 4.21 Buck-boost regulator configuration. output voltage constant is a ferroresonant transformer or a constantvoltage transformer (CVT). Constant-voltage transformer (CVT). The constant ..."
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Electronic Components: Selection and Application Guidelines
Victor Meeldijk

Excerpt - page 183: "... are used to power lights and motors. 4.22.6 Air Conditioning/Refrigeration/Appliance Transformers These transformers are au totransformers ... cord. 4.22.7 Constant-Voltage Regulating Transformers (Ferroresonant Transformers) Constant-voltage transformers are used to protect sensitive electronic equipment, ..."
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Audio Systems Design and Installation
Philip Giddings

Excerpt - page 48: "... interruptions as potential problems. The basic types are the improved ferroresonant transformer, the linear amplifier correction type, and the isolation transformer with ..."
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Electronic Systems Maintenance Handbook, Second Edition
Jerry C. Whitaker

Excerpt - page 148: "... of a full-featured, facility-wide system. The applicable technologies include: • Ferroresonant transformer • Isolation transformer • Tap-changing regulator • Line conditioner Ferroresonant ..."
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The Power Electronics Handbook
Timothy L. Skvarenina

Excerpt - page 17: "... This regulation is provided either electronically or by a tapped transformer or a ferroresonant transformer. Normal mode, or line-to-line, transients are prevented from reaching ..."
See more references to Transformers, Ferroresonant in this book.
Electronic Technology Handbook
Neil Sclater

Excerpt - page 197: "... Ferroresonant Power Sunnlies Aferroresonant power supply is basically a tuned transformer that also functions as a fil- ter. Both reliable and efficient, this supply is, however, sensitive to changes in line fre- quency. A ferroresonant transformer operating at a frequency of 50/60 Hz is large, ..."
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Industrial Electronics
Patrick/Fardo

Excerpt - page 43: "... problem in conventional power supplies. UPSs employ a specially designed ferroresonant transformer that continues to provide energy from its magnetic field and ..."
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Solid-State Laser Engineering (Springer Series in Optical Sciences)
Walter Koechner

Excerpt - page 341: "... Current-limiting resistor L LEAK II C (c) High-leakage transformer (e) Ferroresonant transformer (b) Current-limiting with inductor 0- C Cz L (d) Resonant ..."
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Disaster Survival Guide for Business Communications Networks
Richard Grigonis

Excerpt - page 195: "... and delicate electronics. Fortunately, many UPSs have what's called a ferroresonant transformer that corrects brownouts. And when things really get tough in ..."
See more references to Transformers, Ferroresonant in this book.
Integrated Solutions for Energy & Facility Management
Sioros/Assoc En

Excerpt - page 492: "... of the connected customer. PQ mitigating devices such as UPSs, ferroresonant transformers, surge arresters and contactor coil-hardening devices had already been fitted, ..."
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Zzaap!: Training Esd, Fri, and EMI
Corp, M. Bruce, and M. Bruce Corp

Excerpt - page 51: "... used to control the voltage excursions they handle. For example: Ferroresonant transformer devices (also known as "saturable core reactors"). These control voltage ..."
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Power Quality Enhancement Using Custom Power Devices (Power Electronics and Power Systems)
Arindam Ghosh and Gerard Ledwich

Excerpt - page 5: "... or capacitor or load frequency components switching. Sag Magnitude, duration Ferroresonant transformers, Short single line-to-ground faults duration Swell Magnitude, duration Ferroresonant transformers, ..."
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Magnetic Components for Power Electronics
Alex Goldman

Excerpt - page 16: "... resonance was in the construction of a constant-voltage 60 Hz. transformer by Sola. In power supplies, an important use of the ferroresonant transformer is as a regulator. The early 60Hz transformers have ..."
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Electromagnetic Compossibility (Electrical and Computer Engineering)
Schlicke

Excerpt - page 159: "... from power lines, the following economical devices are available: (vii) Ferroresonant transformers. These transformers utilize resonant LC circuits as an energy storage ..."
See more references to Transformers, Ferroresonant in this book.
AC Power Systems Handbook, Second Edition
Jerry C. Whitaker

Excerpt - page 145: "... commonly used to correct sag and surge conditions, such as ferroresonant transformers or motor-driven autotransformers, are of limited value in protecting a ..."
See more references to Transformers, Ferroresonant in this book.
Computer Telephony Encyclopedia
Richard Grigonis

Excerpt - page 433: "... - Electro-Magnetic Interference - or electrically induced noise or transients. Ferroresonant Transformer - A transformer that regulates the output voltage by the ..."
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Introduction to EMC
John Scott and Clinton Van Zyl

Excerpt - page 41: "... between the windings or a complete metal box around the transformer, or both together. A ferroresonant transformer is a transformer designed to work with its magnetic ..."
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