Video: Drive short circuit protection and UL standards

Electrical equipment is very prevalent and beneficial across a wide variety of industries.  The safety of this equipment continues to evolve and gain awareness, with short circuit protection playing a large role. 

By Control Engineering October 5, 2023

Learning objectives:

  • Defining the what, why and how of short circuit protection
  • Exploring the typical scenarios for protecting drives
  • Understanding short circuit current rating (SCCR) and amps interrupting capacity (AIC)
  • Learn the evolution of UL standards and impact on testing

Electrical equipment is very prevalent and beneficial across a wide variety of industries.  The safety of this equipment continues to evolve and gain awareness, with short circuit protection playing a large role.  This presentation focuses on short circuit protection of systems involving variable speed drives.  It explains the evolution of drive protection as it relates to UL testing, and highlights typical system requirements.

Presenter:

Steve Perreault is the Chief Product Line Manager for Low Voltage Drives at Yaskawa America.  Steve has over 30 years experience in the automation industry, specializing in the variable speed drives market.  Steve is also a NEMA committee member.