Rele de protecao

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7UT51 V3 Protective Relay
Differential Protection for Transformers, Generators, Motors, and Busses Instruction Manual

Document No. PRIM-2330C

This manual supercedes PRIM-2330B-0199. There are only formatting/structural changes.

The use of unauthorized parts in the repair of the equipment or tampering by unqualified personnel will result in dangerous conditions which will cause severe personal injury or equipment damage. Follow all safety instructions contained herein. IMPORTANT The information contained herein is general in nature and not intended for specific application purposes. It does not relieve the user of responsibility to use sound practices in application, installation, operation, and maintenance of the equipment purchased. Siemens reserves the right to make changes at any time without notice or obligations. Should a conflict arise between the general information contained in this publication and the contents of drawings or supplementary material, or both, the latter shall take precedence. QUALIFIED PERSON For the purposes of this manual, a qualified person is one who is familiar with the installation, construction, or operation of the equipment and the hazards involved. In addition, that person has the following qualifications: (a) is trained and authorized to de-energize, clear, ground, and tag circuits and equipment in accordance with established safety practices. (b) is trained in the proper care and use of protective equipment such as rubber gloves, hard hat, safety glasses, or face shields, flash clothing,etc., in accordance with established safety procedures. (c) is trained in rendering first aid. SUMMARY These instructions do not purport to cover all details or variations in equipment, nor to provide for every possible contingency to be met in connection with installation, operation, or maintenance. Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser’s purposes,

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