IEEE C57.12.26-1992 pdf free.IEEE Standard for Pad-Mounted,Compartmental-Type, Self-Cooled,Three-Phase Distribution Transformers for Use With Separable Insulated High-Voltage Connectors (34 500 Grd Y/19 920 V and Below;2500 kVA and Smaller). IEEE C57.12.26 A pad-mounted,compartmental-type transformer shall consist of a...