Detailed procedures for analyzing gas from gas spaces or gas-collecting devices as well as gas dissolved in oil are described. The procedures cover: 1) the calibration and use of field instruments for detecting and estimating the amount of combustible gases present in gas blankets above oil, or in g...

This guide provides guidance and recommended practices on the installation and maintenance of liquid-immersed power transformers rated 501 kVA and above with secondary voltages of 1000 V and above. This guide covers the entire range of power transformers, including extra high voltage (EHV) transform...

Recommendations regarding mineral oil tests and evaluation procedures are made in this guide; references are made to methods of reconditioning and reclaiming conventional petroleum (mineral) dielectric insulating liquids, the levels at which these methods become necessary, and the routines for resto...

Certain electrical, dimensional, and mechanical characteristics are covered in this standard, It also and takes into consideration certain safety features of three-phase, 60 Hz, liquid immersed, self-cooled, submersible transformers with separable insulated high-voltage connectors. These transformer...

The definition of constant k in Equation 2 (in 8.3) and line terminal rated voltage in the last paragraph of 10.8.2 are corrected in this corrigendum.