September 2015 Issue
The definition of the United States Department of Energy (DOE) states that a microgrid is “A group of interconnected loads and distributed energy resources (DER) with clearly defined electrical boundaries that acts as a single controllable entity with respect to the grid [and can] connect and disconnect from the grid to enable it to operate in both grid- connected or island mode.”... More


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Industry News

7SR45 numeric device

Siemens announce the launch of the new 7SR45 Argus - Self-powered Overcurrent Relay The 7SR45 numeric device has been developed as the successor to the well established 7SJ45 relay and is part of the 7SR Argus family. The Self Powered Overcurrent and Earth Fault Relay is developed using the latest generation of hardware technology and is available in two variants depending on the CT conf... More

Alstom Grid

Dedicated Numerical High Impedance Busbar Protection with the MiCOM P14x Series Alstom launches the complete high impedance busbar protection application in its P40 Agile range.  The P141-P145 models now include dedicated features derived from many decades of industry leadership in busbar products MCAG, MFAC and MVTP. The differential scheme achieves precise and selective protection,... More

Get ready for Easergy!

Schneider Electric is launching a new range of devices dedicated to solving the modern challenges of electrical protection and distribution network management. The range named Easergy will set a new standard for safety and security, increasingly necessitated by regulatory, ethical and operational considerations. Efficient logistics will offer simplified ordering, and faster delivery, coupled ... More

IEEE PES - Douglas M. Staszesky Distribution Automation Award

This award was established to recognize individuals who have made a significant contribution to ensure the practical realization of distribution system automation. S. S. (MANI) VENKATA is the 2015 Recipient of the award for contributions to the design and implementation of state of the art, smart distribution automation systems. Since 2011 Prof. Dr. Venkata is a Principal Scientist in Alst... More

IEEE PES - Meritorious Service Award

The IEEE PES Meritorious Service Award is given to a PES Member who has made outstanding contributions in leadership, technical activities, and educational activities of the IEEE Power & Energy Society.  JOHN D. MCDONALD is the 2015 Recipient for contributions to PES technical activities, especially the Substations Committee and the Distinguished Lecturers Program, and to the administr... More

IEEE PES - Outstanding Technical Report

The IEEE PES Outstanding Technical Report Award for 2015 is given to the “Use of Synchrophasor Measurements in Protective Relaying Applications” report produced by the Power System Relaying Committee. Jim O’Brien, Chair and Alla Deronja, Vice Chair were the officers of the working group that produced the report.  The Members of the working group were: Alex Apost... More

IEEE Power and Energy Society Reorganization

The IEEE Power and Energy Society (PES) is reorganizing its technical committees to address committee overlap and lack of technology coverage. Three extensive surveys of the committees determined how each viewed their technology coverage.  Several changes were identified: six or more committees indicated similar technology coverage - signifying overlap; other technologies showed limite... More

ISIO 200

New IEC 61850 SCADA Interface Regardless of whether OMICRON´s ISIO 200 is used for SCADA testing or teleprotection applications, utilities and system integrators will benefit from the extended functionalities of the versatile binary I/O terminal for Substation Automation Systems due to its new IEC 61850 server. ISIO 200 now communicates with an IEC 61850 SCADA system. Selectable data... More

Sifang Merge Unit

CSD-60x series MU (Merge Unit) is merging and synchronizing the sampling data and transmitting to bay level IEDs via process bus. It supports both NCIT (Non-Conventional Instrument Transformer) and CIT (Conventional Instrument Transformer). Analog input sampling rate: 4000Hz Digital input: multiple channel of digital input SV input and output: IEC 61850-9-2, optical 10/100M Ethernet,... More

Triangle MicroWorks

New Tool for Simulating the Communications of PAC Systems Triangle MicroWorks has released the Distributed Test Manager (DTM) which is designed to simulate the communications and data models of substations and other power systems.  DTM can simulate multiple Clients/Servers and Publishers/Subscribers on hosts distributed across a network.  Simulations are created by importing devi... More

Technology News

Remote PC Access - work from home or while traveling

We live in a world that is more and more defined by technology and characterized by our mobility and at the same time the threats of cyber-attacks. That is why the availability of secure software tools that allow us to access a computer from anywhere and any device that we use is very important, and we should try to use the best. The Gold Award Winner from the review of the top ten remote... More

String Inverters offer additional benefits

Photovoltaic (PV) systems are probably the most common source of renewable energy for many microgrids. The integration of the solar panels with the microgrids, or even with the power grid is based on the use of inverters which convert the DC output from the panels into the AC output required by the consumers. This makes inverters the largest hardware cost after the solar panels in any solar... More

Cover Story

Micro Grid

Microgrids are one of the key components of the Smart Grid and have been called ‘the impatient upstarts of our energy future’.  While many microgrids projects share important characteristics beyond the common microgrid name, there are equally important differences across the growing number of microgrids across the globe. The purpose of this article is to present several Europe... More

IEC 61850 Update

Standard Versions and Compatibility

This needs to be considered on the three key elements of the standard: Communication Data models Configuration language With regard to the data model, the standard already with the first edition had a namespace concept. Assuming the future tools and devices understand all versions of the standard, in principle, they can always coexist, independent of the changes made. Similar is t... More

Lessons Learned

Practical Implementation of Adaptive Protection and Control in a Medium Voltage Microgrid

IEC 61850 suite of utility automation protocols combined with OPC client/server technology and application logic engine executed by the grid automation controller installed at the point of common coupling, provides a flexible and powerful platform for the development of advanced adaptive (microgrid state dependent) protection and control system.  Microgrid control system extracts the ... More

NASA Mission to Mars

The Application of Lessons Learned from DC Microgrid Technology for Spacecraft to Terrestrial Microgrids

DC microgrids are not new.  They have been powering spacecraft for over 55 years and have been powering manned craft operating in hostile environments for over 100 years (the first submarines utilized DC microgrids). When operating in deep space, the importance of 100% reliability makes it necessary to have extraordinarily robust hardware and software to monitor and control the spacecraf... More

Communication XMPP

New IEC 61850 Protocol - Mapping based on XMPP

While the first edition of the IEC 61850 series, published in 2003, focused on standardizing communication between applications within a Substation Automation Domain, the second edition published in 2010 extends its domain of application up the Power Utility Automation System. The IEC 61850 series specify: An Abstract Communication Service Interface (ACSI) A semantic model based on an ob... More

Legal Issue

FMLA- Expanding the Reach

As we discussed in the previous issue of the magazine, under FMLA most Federal employees are permitted to a total of up to 12 workweeks of unpaid leave during any 12-month period. In 2013, the United States Supreme Court ruled as unconstitutional Section 3 of the Defense of Marriage Act (DOMA) - the portion dealing with federal recognition of any marriages between gay or lesbian couples. (Gla... More

Pushing the Envelope

Pushing the Envelope

Enabled by technological advancements and motivated by the growing need to increase security, resiliency, efficiency, flexibility, and adaptability, microgrids have been proposed as a solution for supplying electric power in an increasing array of applications in the modern distribution systems. (Figure 1.) Commonwealth Edison (ComEd) – a unit of Exelon Corp. (Chicago, Illinois, ... More

The Guru

Interview with PACWorld guru Charles Henville

PAC World:  When and where were you born? C.H.:  I was born in 1948 in Basseterre, St. Kitts, a small Caribbean island. At the time it was a British colony, now part of the independent country of St. Kitts and Nevis. PAC World:   Where did you go to school? C.H.:  I went to variety of schools, elementary school in Grenada, and boarding secondary schools in Jama... More


Protection History

The huge step from protection relays to IEDs (Intelligent Electronic Devices) was described in the last issue- the combination of protection and control in a single device. Digital relays became widely accepted since 1990. Mechanical and especially static relays became less attractive. At the turn of millennium more than 100 000 digital relays were installed in Germany.  A lot of substa... More

I Think

Smart Grid, Smart Cities, Happy People

When thinking of smart grids and smart cities often the first thoughts utility staff have is about the diversity and complexity of the technologies required to create a smart grid or city, the money required to build it, and their justification. However the role of a utility in a smart city or grid environment is not centered around technology. It is in its most basic form keeping the ligh... More

Industry Reports

IEEE Power Systems of the Future: The Case for Energy Storage, Distributed Generation, and Microgrids

The following are some excerpts from the report related to microgrids. The complete report can help our readers get a good understanding of the trends in the vision for the future. This study was conducted by surveying 460 global smart grid executives in September of 2012. Respondents were asked 25 questions on energy storage, distributed generation and microgrids. The survey was conducte... More

Conference Reports

5th International Scientific and Technical Conference

The event was held in Sochi – the largest resort in the Russian Federation. The 5th International scientific and technical conference "Actual trends in development of Power System Relay Protection and Automation" was held 1–5 June 2015.  The venue of the conference was the Radisson Lazurnaya Hotel. The conference was organize by the Russian National Committee of CIGRE, JSC... More

CIRED 2015 - International Conference on Electricity Distribution

CIRED 2015 took place 15-18 June 2015 at the Convention Center of Lyon, France.  This is the leading forum of the electricity distribution community which allowed close to 1300 people from Europe and the rest of the world to meet and discuss the dramatically changing electric power distribution industry. The participants in the conference and exhibition benefit from the different types... More

DistribuTECH Africa, Cape Town, South Africa

The event was held 15-17 of July 2015 at the Cape Town Convention Center. It is a major event for the continent and consists of a conference and exhibition dedicated to the needs, resources and issues facing the electric power industry across sub-Saharan Africa. For the second year it brought together many experts from different countries in the region and across the world. The delegates ... More

IEEE Power and Energy Society General Meeting, Denver, Colorado, USA

The event was held under the theme "Powering up the Next Generation." The event was held 26-30 July at the Sheraton Denver Downtown hotel, Denver, USA. Thousands of specialists and students from different areas of the electric power industry from all corners of the world presented the latest results from their research and discussed the challenges that our industry faces in the transition ... More

Protection Automation and Control World Conference 2015

The Sixth Annual PAC World conference was held 29 June - 2 July 2015 in Glasgow, UK. The event was held at the brand new Technology Innovation Center of the University of Strathclyde in Glasgow, UK. It is Glasgow’s second university by age receiving its Royal Charter in 1964 as the UK’s first technological university. It takes its name from the historic Kingdom of Strathclyde. ... More

Book Review

Microgrids: Architectures and Controls

First Edition Microgrids are the latest component of the electric power system that is new to energy professionals, including protection, automation and control specialists. That is why we need to learn about what they are and how they work in order to be able to find the best ways to protect them under different abnormal system conditions. This book is the result of a six-year joint Eur... More


The Art and the Science of Creating Panoramic Views

Where is that View?  To get into this hobby, I had to go away from the place where I grew up. Vorarlberg, where I live now again, is the westernmost province of Austria, known as an alpine country. Most of our teachers liked outdoor activities, so the regular school hikes at the beginning and at the end of the school years led us somewhere up into the mountains. And I hated it at that time. N... More

Final Thoughts
It is the same, but not exactly An electric power grid is a complex system for delivering electric power from different sources to individual consumers over an interconnected transmission and distribution system, while maintaining the stability of the system, the quality of power and balancing the load and the generation at every moment in time. This simplified definition of the electri... More

Relion advanced protection & control.
Let?s start with organization in protection testing