Saturday, October 3, 2015

International and Indian Standards for Transformers

During Transformer Manufacturing there are following codes and standards which manufacturer must comply for better performance and safety aspects:-
For Transformer specifications visit link as below:-

http://electrialstandards.blogspot.com/2015/10/transformer-technical-specifications.html


For Transformers applicable Codes, Standards, rules, Acts:-
Standard and Rule
Description of Standard, Rule
IEC: 60616
Terminal and Tapping Marking for Power Transformers
IEC: 60529
Degrees of protection provided by Enclosures (IP Code)
IEC: 60905
Loading guide for Dry-type power transformers
IEC:60044
Instrument Transformers- Current and voltage transformers
IEC:60225
Electrical relays
IEC:60625
High voltage switches
IEC:62271-202
High voltage switchgear and control gear-Prefebricated Substation
IS:335
Insulating oil
IS:1271
Thermal evaluation and classification of electrical insulation
IS:2099
Bushing for Alternating voltage above 1000V
IS:2705
Current Transformers
IS:3347
Dimensions for Porcelain Transformer bushing
IS:3637
Gas operated relays
IS:3639
Fitting & Accessories for power transformers
IS:3156
Voltage Transformers
IS:4201
Application guide for CT’s
IS:6600
Guide for loading of oil immersed transformers
IS:2629
Recommended practice for Hot-dip galvanizing of iron and steel
IS:8478
Application guide for On-load tap changer
IS:8468
On-load tap changer
IS:10028
Code of practice for selection, installation & maintenance of transformers
IS:13947
LV switchgear and Controlgear-Part1
IS 2026
Power Transformers
IS 1180
Outdoor type oil immersed distribution transformer up to and including 2.5MVA,33kV
IS:7098
XLPE cables
IS 5561
Electrical Power Connectors
IS 5
Colors for ready mix paints
IS: 11171
Dry type Power Transformer

Indian Electricity Rules

Indian Electricity Act

CBIP manual


You have seen that there as so many standards both international and Indian standards. During purchasing the Transformer if any one doesn't know Transformer specifications than just go through these Indian standards and they will get enough knowledge about Transformers manufacturing, testing, everything about transformers.

These Indian standards are freely available on internet.