IEC 60044-6 PDF

Gak You are commenting using your Facebook account. The secondary terminal voltage for the specific C class V. NOK 2 ,00 excl. Common electrical tests on instrument transformers.

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Chopped impulse test on primary winding The object of the IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation.

The IEC collaborates closely with the International Organization for Standardization ISO in accordance with conditions determined by agreement between the two organizations. Any divergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter.

The IEC shall not be held responsible for identifying any or all such patent rights. The technical content is therefore identical to the base edition and its amendments and has been prepared for user convenience.

It bears the edition number 1. A vertical line in the margin shows where the base publication has been modified by amendments 1 and 2. Annex A forms an integral part of this standard. Annex B is for information only. The committee has decided that the contents of the base publication and its amendments will remain unchanged until Although the requirements relate basically to transformers with separate windings, they are also applicable, where appropriate, to autotransformers.

Clause 11 covers the requirements and tests, in addition to those in clauses 3 to 10, that are necessary for current transformers for use with electrical measuring instruments. Clause 12 covers the requirements and tests, in addition to those in clauses 3 to 10, that are necessary for current transformers for use with electrical protective relays, and in particular for forms of protection in which the prime requirement is the maintenance of accuracy up to several times the rated current.

For certain protective systems, where the current transformer characteristics are dependant on the overall design of the protective equipment for example high-speed balanced systems and earth-fault protection in resonant earthed networks , additional requirements are given in clause 13 for class PR transformers and in clause 14 for class PX transformers.

Clause 13 covers the requirements and tests in addition to those in clauses 3 to 10 that are necessary for current transformers for use with electrical protective relays, and in particular for forms of protection in which the prime requirement is the absence of remanent flux. Current transformers intended for both measurement and protection shall comply with all the clauses of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document including any amendments applies.

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