to the latest issues of standards given below.IS : 1271 Thermal
evaluation and classification of electrical insulation
IS : 2026 Power TransformersIS : 2099 Bushings for alternating
voltages above 1000 VIS : 2705 Current Transformers
IS : 3639 Fittings and accessories for power transformers.IS :
6600 Guide for loading of oil immersed transformersIS : 8468 On
load tap changersIS 1886: Installation & MaintenanceIS 3637:
Wind Operated RelaysIEC :60076 Power TransformersIEC : 60044-1
Current TransformerIEC:60269 Specification for Mineral oil for
transformersIEC : 60354 Loading guides for oil immersed power
transformersIEC : 60127 Bushings for Alternating Voltages above
1000 VIEC:60404-2 Methods of measurement of magnetic properties of
steel.
