Oil-immersed single-phase transformer

Introduction

This instruction manual provides general information for the installation, operation, and maintenance of EES CABLE single phase

,pole mounted transformers.These transformers are to be applied for the single-phase,mineral-oil-filled, overhead-type distribution

transformers for use on 34500GrdY/19920V overhead distribution system.

Reference Standards

ANSI/IEEE C57.12.00 IEEE Standard General Requirements for Liquid-Immersed Distribution,Power, and Regulating

Transformers.

ANSI/IEEE C57.12.20 American National Standard for Overhead-Type Distribution

Transformers 500kVA and Smaller: High Voltage 34500 Volts and below; Low Voltage 7970/13800Y and below Requirements

Nominal voltage ratings

19920volts(34500GrdY/19920V) Secondary: BIL 30KV

120/240volts (or 277/480 V) Frequency -60Hz

Polarity -Subtractive Ambient air temperature: 40 Temperature rise:<65