by Milan Jankovski, Rene Troost, Edward Coster, Stedin, and Marjan Popov, Delft University of Technology, The Netherlands The rise and characteristics of Inverter-Based Resources: If you have...
Issue 075 March 2026
Cover Art
Cover Story
Featured Articles
Cease Mode Operation of Inverter-Based Resources: Field Evidence...
by Mukesh Nagpal, Burns & McDonnell, Ajmal Saeed, Ricardo Rangel, and Daniel Zhang, Pacific Gas & Electric Company, and Ritwik Chowdhury, Schweitzer Engineering Laboratories, Inc. USA Power...
Assessment of Wind & Solar Plant Responses to Unbalance Fau...
by A. Janardhan, G Praveen Kumar, T Madan Kumar and MVL Rajendra, GRID-INDIA, India In response to escalating environmental concerns, global power systems are moving towards clean and...
System-Based Protection Testing Considering IBR and Negative...
by Veronica A. Rosero-Morillo, Institute of Electrical Energy IEE, National University of San Juan, Argentina, Francisco Gonzalez-Longatt, Digital Energy Systems Laboratory, Loughborough...
Impact of Inverter-Based Resources (IBR) on Power System...
Renewable Energy (RE) – Rich Grid by Pankaj Kumar Jha, Brijendra B. Singh, Kuleshwar Sahu, Power Grid Corporation of India Limited, India Introduction: The large-scale...
Editorial
Editorial – Issue 075 March 2026
Protection at the Crossroads: Transforming Digital Substations Rethinking Fundamentals in the Age of Inverters by Alex Apostolov, Editor-in-Chief If there is a unifying theme running through...
Last Word
Last Word – Issue 075 March 2026
What? Why? ...
The Guru
Interview with PAC World guru Dr. Iony Patriota de Siqueira
PAC World: When and where were you born? I.P.de S.: I was born in Sao Jose do Egito (Saint Joseph of Egypt), a small city in the Northeast of Brazil, on December 28th, 1951. PAC World: Where did...
History
History of Earth Fault Detection in the 1920s, Earth Fault...
by Walter Schossig, Germany, and Thomas Schossig, OMICRON electronics GmbH, Austria Continuing the last article will investigate more earth fault compensation solutions. The paper will...
News
DistribuTECH
The event took place 2-5 February 2026 in San Diego, CA, USA. DistribuTECH 2026, held at the San Diego Convention Center, marked a significant pivot for the utility industry, transitioning from...
PAC WORLD – Power outages, December 2025
By Rannveig Loken, Norway France, Paris: A power blackout briefly hit parts of Paris on due to a technical incident at a substation, southwest of the French capital. The outage halted a...
Western Protective Relay Conference
The annual Western Protective Relay Conference (WPRC) 2025 was held 27–30 October 2025 at the Spokane Convention Center in Spokane, WA, USA. Organized by Washington State University, the conference...
2025 Canada Protection Symposium
The 10th Annual Canada Protection Symposium (CPS) was held at the Toronto Marriott City Centre Hotel in Toronto, Canada. Building on the success of previous years, CPS continues to serve as a key...
IEEE PES International Meeting (PES IM)
The 2026 IEEE PES International Meeting (PESIM 2026) took place 18–21 January 2026 in Hong Kong SAR, China, marking the first time this power and energy engineering event was hosted outside North...
The vPAC Alliance
The vPAC Alliance (Virtual Protection, Automation and Control) is a coalition of utilities, vendors and technology partners formed to accelerate the transition of power substations to a software...
Accelerate IEC 61850 compliance
SOC-E simplifies digital substation equipment design with its integrated SMARTzynq solution. It is a pluggable System-on-Module (SoM) designed to streamline the implementation of custom-made Ethernet...
Enhance Busbar Protection with the SEL-487B
Apply distributed protection for large busbars in IEC 61850-based systems with the enhanced SEL-487B-2 Bus Differential and Breaker Failure Relay—now IEC 61869-9-compliant. IEC 61869-9 enables the...
RelaySimTest Powers Advanced Protection Validation
OMICRON introduces enhanced capabilities for RelaySimTest, its system-based testing solution for validating modern protection systems. Designed for IEC 61850 and hybrid installations, RelaySimTest...
Power-Alone Merging Unit
PowerLogic™ P7S is the new Stand-Alone Merging Unit from PowerLogic™ P7 Protection and Control Platform. It is designed to garantee the highest performances and reliability of the Process Bus...
Industry Updates
IEEE PES PSCC Update
by Eric Thibodeau, Hydro Quebec, Quebec, Canada The PSCCC – Power System Communications and Cybersecurity Committee kicked off the year 2026 in a positive fashion, hosting its meeting...
CIGRE Study Committee B5
by Peter Bishop, Transpower NZ Ltd, New Zealand News from CIGRE Study Committee B5 Protection and Automation The 2026 CIGRE Paris Session will take place from 23 to 28 August 2026. Registrations to...
IEC TC 57 WG 17 Update
IEC 61850 models for DERs maintenance and mappings b y Tom Berry, Schneider-Electric IEC TC 57 WG 17 is in charge of power system intelligent electronic device communication and associated...
IEEE PES PSRC Update
IEEE Power & Energy Society (PES) Power System Relaying and Control (PSRC) Committee PES Power System Relaying and Control (PSRC) Committee is responsible for the development of standards, guides...
IEC 61850 – WG10 Update
by K eith Gray, POWER Engineers – a member of WSP, USA You will see in this article that IEC 61850 is a living standard that continues to evolve and expand, which leads to improved...
