ICS 29.180                          ETD 16

[Superseding IS 3151 : 1982, IS 5553 (Part 1) : 1989, IS 5553 (Part 2) : 1990, IS 5553 (Part 3) : 1990, IS 5553 (Part 4) : 1990, IS 5553 (Part 5) : 1989, IS 5553 (Part 6) : 1991, IS 5553 (Part 7) : 1990, IS 5553 (Part 8) : 1990]

New Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (Part 6) which is identical with IEC 60076-6 : 2007 ‘Power transformers - Part 6: Reactors’ issued by the International Electrotechnical Commission (IEC) was adopted by the Bureau of Indian Standards on the recommendation of the Transformers Sectional Committee and approval of the Electrotechnical Division Council.

This standard covers the requirements of earthing transformers and reactors which were earlier covered in IS 3151 : 1982 and all parts of IS 5553 respectively. With the publication of this standard, the following standards are superseded and hence shall be withdrawn:

IS 3151 :1982 Specification for Earthing Transformer (first revision)

IS 5553 Reactors - Specification

(Part 1) : 1989 General

(Part 2) : 1990 Shunt reactors (first revision)

(Part 3) :1990 Current limiting reactors and neutral earthing reactors (first revision)

(Part 4) : 1989 Damping reactors (first revision)

(Part 5) : 1989 Tuning reactors (first revision)

(Part 6) : 1990 Earthing transformers (Neutral couplers)(first revision)

(Part 7) : 1990 Arc suppression reactors (first revision)

(Part 8) : 1990 Smoothing reactors (first revision)

The text of IEC Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words ‘International Standard’ appears referring to this standard, they should be read as ‘Indian Standard’

b) Comma (,) has been used as a decimal marker, while in Indian Standards the current practice is to use a point (.) as the decimal marker.