Shunt Reactor Switching: Theory and Practice

Tue 09 February 2021 to Tue 09 February 2021 / Workshop
Shunt Reactor Switching: Theory and Practice - CIGRE

Shunt Reactor Switching: Theory and PracticeTue, Feb 9, 2021 3:00 PM - 4:30 PM CET


Shunt reactor switching is a unique and onerous duty for circuit breakers involving a complex interaction between the characteristics of the circuit breaker by type, gas or vacuum, and by way of its current chopping capability, arc voltage and arcing time and the reactor load circuit as represented by its inductance, effective capacitance and reactor grounding arrangement. The webinar explains the interaction in detail in and the derivation of a generalized circuit breaker TRV equation which can be used for any shunt reactor application. Five reactor applications will be considered using Excel to demonstrate the calculation method.


This webina, presented by David Peelo, will cover the original Cigre material and the later updating through the SC 17A including the latest ongoing revision.


The registration to this webinar is free for all, CIGRE members and non-members.


Technical Brochures can be freely downloaded by CIGRE members. If you are not a CIGRE member, join us on


To register:


Welcome to the world of CIGRE

Welcome to the world of CIGRE


Welcome to the world of CIGRE

Why Join



Join CIGRE for power system expertise



  •  Collaborate with experts from across the whole power system


  •  Access perspectives and peers from every corner of the globe.


  •  Unlimited free access to


  •  Free access to ELECTRA


Be prepared for the future! More >



Solve all power system challenges in one unique place

To find the solutions you need in one unique place, join CIGRE. As the preeminent global technical organisation, CIGRE is uniquely positioned to offer the full spectrum of low through high voltage perspectives, industry colleagues and end to end knowledge.