Do you need a multi-user copy? Our prices are in Swiss francs CHF. We accept all major credit cards American Express, Mastercard and Visa , PayPal and bank transfers as form of payment. Download Hardcopy English. It is also intended to assist in understanding the various types of tap-changers and their associated equipment available.
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Buy This Standard. Access Via Subscription. Explore This Standard. Standard Details. It is also intended to assist in understanding the various types of tap-changers and their associated equipment available. These application guidelines cover on-load tap-changers resistor and reactor types and de-energized tap-changers.
Additional Resources Details. Malia Zaman. P - Standard Requirements for Tap Changers. This part of IEC applies to on-load tap-changers of both resistor and reactor types, deenergized tap-changers, and their motor-drive mechanisms. It applies mainly to tap-changers immersed in mineral insulating oil according to IEC but may also be used for tap-changers with air or gas insulation or immersed in other insulating liquids insofar as conditions are applicable.
It applies mainly to tap-changers with arcing contacts but may also be used for arcing-free on-load tap-changers such as electronic switching insofar as conditions are applicable. This part of IEC applies to power and distribution transformers of all types and also to reactors. It does not apply to transformers and reactors mounted on railway rolling stock. Electrical and mechanical performance and test requirements for load tap changers installed in power transformers and voltage regulating transformers of all voltage and kVA ratings are covered.
This standard covers electrical and mechanical performance and test requirements for tap changers installed in voltage regulating power and distribution transformers of all voltage and kVA ratings.
It covers load tap changers LTCs , also known as on-load tap changers OLTCs , which can change taps while the transformer is energized and carrying load; and it covers de-energized tap changers DETCs , also known as off-circuit tap changers, which may be operated only while the transformer is not energized.
For load tap changers, this standard covers both resistor and reactor types. It also covers certain aspects of the attendant tap changer motor-drive mechanism. It does not cover the tap changer control system manual or automatic. Published Date Approved PAR. Craig Colopy. Active P - Standard Requirements for Tap Changers This part of IEC applies to on-load tap-changers of both resistor and reactor types, deenergized tap-changers, and their motor-drive mechanisms.
Superseded C Active C
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