Date: Tuesday 25th August, 2020

BIO:
Fadi Zatari graduated in 2009 from BAU in Electrical Power Engineering, Amman-Jordan. He has 11 years of experience in Cables Manufacturing, Renewable energy, Power System Protection Testing and Sales. He joined OMICRON in 2015 as an application engineer then became a Regional Application Specialist in 2017. Starting from 2019, he moved to sales as an Area Sales Manager.

ABSTRACT:
Due to the increasing use of numerical relays, with various mathematical algorithms, configurations, parameters and the increase in complexity of power systems, conventional techniques are inadequate to test protection systems.

Testing individual relays in a power system is insufficient to cover all possible errors that might occur. This was underlined in the 2013 NERC maloperations report which stated, “Today’s protections systems, relay failures are not the single source of error anymore, but rather incorrect settings, logic and design errors already account for more maloperations.”

Date: Tuesday 25th August, 2020

BIO:
Aditya Taneja started working at OMICRON in 2012 as a Regional Application Specialist with a focus on circuit breakers and switchgear. He is an OMICRON Academy trainer, and delivers courses in OMICRON’s training centres and at customers’ premises.
He has over 9 years of experience in the electrical field in South Asian and Middle Eastern markets

ABSTRACT: 
For reliable operation of circuit breaker under load conditions, wear and tear of main and arcing contacts should be assessed during routine maintenance. This is can be done efficiently using dynamic resistance measurement without opening the interrupter chamber. This presentation will discuss the measurement principal and case study demonstrating usefulness of this measurement technique.

Date: Tuesday 25th August, 2020

BIO 
Sofiane Bakkay joined OMICRON electronics Middle East in January 2020 as the Regional Application Specialist for power transformers.
Sofiane holds a degree in electrical engineering and has over 20 years of experience in the field. He was previously working as the Head of Test and Measurement Division in STEG – Tunisia

ABSTRACT
Onload tap changers (OLTCs) are one of the most indispensable components on regulated Power Transformers. Due to their ‘Dynamic’ operation, OLTCs are very exposed to faults and degradation. Different statistics studies on Power transformers faults location, shows that OLTCs are the most affected component by failures.

Different electrical test could be performed on Power Transformers to assess the health of OLTCs and to locate any eventual fault. Basic tests like Turn ratio and static DC Winding resistance, as well as DRM scanning (Dynamic Resistance Measurement), combined to Oil analysis (Physical-Chemical tests and DGA) could give precious information to locate the different faults (mechanical or electrical fault) on OLTCs.

Date: Friday 28th August, 2020

BIO:
Njeri Gachanja is a BSc Electrical Engineering graduate currently undertaking an MBA at Strathmore Business School, Nairobi, Kenya. She is an experienced Key Account Manager at Amotech Africa with a demonstrated history of working in the electrical and electronic manufacturing industry with a special focus on Power Quality. A strong sales professional, skilled in Strategic Planning and Pre-Sales Technical Consulting.

Asaf Laifer is an experienced Metering & Protection Division Manager at Elspec Ltd with a demonstrated history of working in the electrical and electronic manufacturing industry. Skilled in Market Requirements Documents, Negotiation, Product Lifecycle Management, Smart Grid, and Software Requirements. Strong sales professional with a Professional Product Management Course focused in Hi-Tech from Bar-Ilan University.

ABSTRACT:
The influence of photovoltaics Systems on Power Quality as there are more and more Wind Turbine and Photo Voltaic manufacturers for energy producing farms worldwide, there is a growing need for continuous power quality monitoring at the Point of Common

Coupling (PCC). Monitoring PQ has technical, economical, and legal implications. Electrical parameters fluctuate continuously and depend on many factors such as wind and sun. Installing Continuous, high resolution recording and monitoring devices in PCC location enables the utility and/or the farm operators to ensure compliance with the grid requirements. Experience shows us that many power quality events that are within the permitted range, can still be a source of problem to the energy producers and consumers which many times are a source for power quality investigation and thorough post event analysis. In our presentation we will show a few examples of data recorded by a continuous high-resolution PQA at a PCC location in Photovoltaic Farms. These measurements show anomalies that are still within the standards but thanks to the continuous waveform recording function, these occurrences can be observed.