Critical Power Installations - Generators & UPS Systems


1-day course

CPD Credit: 7 hours, C1

Course Overview

This course covers the selection and design of generator and uninterruptible power supply (UPS) systems for critical power installations (CPIs) such as hospitals and data centres. 

Learning Objectives

At the end of the course attendees will have learned the basic principles of operation of diesel powered generators and static UPS systems as used for critical power installations. They will understand the basic requirements for selecting and designing these systems and their relationship to each other.


Part 1 Critical Power Installations

  • Section 1.1 - Examples of Critical Power Installations 
  • Section 1.2 - Essential versus non-essential modes
  • Section 1.3 - Availability time versus Autonomy
  • Section 1.4 - The role of the generator versus the UPS 

Part 2 Standby Generators

  • Section 2.1 - Introduction to Gensets
  • Section 2.2 - Diesel Engines
  • Section 2.3 - Alternators
  • Section 2.4 - Connecting the Generator to the load
  • Section 2.5 - Plantrooms & Enclosures
  • Section 2.6 - Generator Exhaust Systems
  • Section 2.7 - Fuel Storage and Distribution
  • Section 2.8 - Generator Testing and Commissioning

The following topics from the main Generator course are not included :

  • CHP Systems
  • DRUPS Systems

Part 3 UPS systems

  • Section 3.1 - Utility Supply Disturbances
  • Section 3.2 - Types of UPS Systems
  • Section 3.3 - Efficiency in Static UPS Systems
  • Section 3.4 - UPS Configurations and Modes of Operation
  • Section 3.5 - Battery Systems
  • Section 3.6 - Typical UPS Specification Sheets
  • Section 3.7 - UPS & Generator Compatibility Issues
  • Section 3.8 - UPS Testing and Commissioning

The following topics from the main UPS Course are not included:

  • UPS System Components
  • UPS and Power Factor
  • UPS Harmonic Distortion
  • Rotary UPS Systems
  • Static Inverter Units for Emergency Supplies

Who Should Attend?

This course will benefit electrical engineers and contractors involved in the design of generator and UPS systems for critical power installations.

Trainer's Profile

Brendan Dervan is a Chartered Engineer with over 44 years’ experience in all aspects of mechanical and electrical building services including; design, installation, commissioning and maintenance. After completing an electrical apprenticeship in 1982 he went on to study electrical engineering in DIT. He has worked in M&E consultancy at senior engineer / director level since 1990. In 1999 he started his own M&E consultancy Dervan Engineering Consultants (DEC) which merged with Cundall in 2016. His Company provided M&E consultancy and project management services to a diverse range of clients in both the public and private sectors. He is owner and director of Best Training since 2019.

Please contact the Team for further information on scheduled course dates and In-Company options. You can reach us by phone: 01 665 1305 or email