ECBC Compliance for Electrical Transformers

Electrical Transformers: A piece of electrical equipment used to convert electric power from one voltage to another voltage.

Transformer losses: electrical losses in a transformer that reduces its efficiency. Following are some mandatory requirements for electrical transformers as per ECBC:

Maximum Allowable Power Transformer Losses
Power transformers of the proper ratings and design must be selected to satisfy the minimum acceptable efficiency at 50% and full load rating.
Permissible total loss values shall not exceed
(a) 5% of the maximum total loss values mentioned in IS 1180 for oil type transformers in voltage class above 11 kV but not more than 22 kV
(b) 7.5% of the maximum total loss values mentioned in above IS 1180 for oil type transformers in voltage class above 22 kV and up to and including 33 kV
(c) values listed in Table 7.1 for dry type transformers

Dry Type Transformers

Oil Type Transformers