NDLI: Transformer paralleling errors—Prevent, correct or ignore?

Content Provider	IEEE Xplore Digital Library
Author	Jauch, E.T.
Copyright Year	2008
Description	Author affiliation: Beckwith Electr. Co., Largo, FL (Jauch, E.T.)
Abstract	When transformer paralleling methods employed are inappropriate, or are incorrectly set, the operation of paralleled power transformer tapchangers can result in detrimental effects on system voltages and power transfer capability. In some cases, these operations can also contribute to the premature failure of the power transformer. With these possible consequences, ignoring these errors is not normally the best choice. Prevention or correction of these application errors requires that the user understand the basis of operation of the control methods available. The user must also be alert to the possible system configuration changes that can occur during normal and emergency operation of the power system. Recognizing the possible combination of conditions and control methods that cause inappropriate tapchanges, allows the user to design for prevention or to adjust (reset or change) for correction. One of the most important aspects of any method is the ability to accurately determine the sensitivity of the controls during all system conditions and prevent "hunting" of tap positions. This paper will discuss several system configurations for transformer paralleling and discuss the effects of using different paralleling methods. The effects of automatic operation of system equipment, such as breaker operations or distributed generation, will be considered. Some of these application factors, which can cause operation errors, will be listed.
Starting Page	1
Ending Page	7
File Size	456094
Page Count	7
File Format	PDF
ISBN	9781424419036
DOI	10.1109/TDC.2008.4517123
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-04-21
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Error correction Power transformers Reactive power Automatic control Control systems Feedback Voltage control USA Councils Impedance Power systems Regulators Load-Tap-Changer Transformer Control Paralleling
Content Type	Text
Resource Type	Article

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