Power Transformers and Emergency Diesel Generator Sets – Sizing

This material presents criteria for sizing auxiliary service transformers and emergency diesel generator sets used in hydroelectric power plants, small hydro power plants (SHPPs), substations and industrial facilities.

The document addresses electrical load identification and classification, normal operation, maintenance and emergency conditions, power consumption calculations, transformer sizing, emergency diesel generator specification, alternator selection and diesel engine power determination. The package includes a technical PDF document.

• Criteria for auxiliary service system sizing.
• Electrical load identification and classification.
• Continuous, intermittent and sporadic loads.
• Normal operating conditions.
• Maintenance conditions.
• Emergency operating conditions.
• Electrical consumption calculations.
• Auxiliary service transformer sizing.
• Transformer rated power determination.
• Secondary voltage evaluation.
• Emergency diesel generator set sizing.
• Alternator power selection.
• Transient reactance calculations.
• Minimum voltage verification during motor starting.
• Diesel engine power determination.
• Applications in hydroelectric power plants, SHPPs and substations.
• Technical PDF document. 

Electrical engineers, designers, consultants, operators, maintenance personnel, electrical engineering students and professionals involved with power systems. 

• Technical PDF Document.