OMICRON Seminar on Partial Discharge Diagnostics on HV Assets. January 30, 2018 Beirut, Lebanon

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1 OMICRON Seminar on Partial Discharge Diagnostics on HV Assets January 30, 2018 Beirut, Lebanon

2 Substation Asset Testing and Diagnosis LOW ACCURACY LEVEL HIGH Take better maintenance decisions through accurate and comprehensive condition diagnosis and assessment. Maximal signal-to-noise ratio due to freely-selectable filtering options and advanced noise separation tools. NOISE SUPPRESSION Increase safety due to single asset connection concept, clear connection guidance and multiple safety precautions. Condition based maintenance has widely been accepted as the most effective maintenance strategy for HV substation equipment. Through accurate knowledge of the state of condition and corresponding maintenance action, the lifetime of assets is extended while ensuring a more reliable and safe operation at the same time. The disadvantage of such a strategy are the costs due to the power outages that are required in order to perform the diagnostic measurements. At OMICRON we counter this disadvantage. We develop solutions that combine high portability, effort minimizing connection concepts and intelligent automated testing routines. This enables faster and easier testing and condition assessment than ever before without compromising on the scope of results. With diagnostic concepts that involve simultaneous time optimized testing on various HV assets the overall outage time for diagnostic measurements is greatly reduced to only a few hours. Learn more about this topic, experience what OMICRON has to offer and get an idea of just about how much this can improve your process.

3 Agenda Time Topics 08:30-09:00 Registration 09:00-10:00 Introduction 10:00 10:45 Partial Discharge Introduction and Measurement Techniques 10:45-11:15 Coffee Break 11:15 12:00 Partial Discharge Measurements on Power Transformers 12:00 12:45 Partial Discharge Measurements on Cables 12:45 13:15 Partial Discharge Measurements on Switchgear 13:15 13:30 Closing 13:30 14:30 Lunch Bavley Farid has worked as Application Engineer with a focus on Partial Discharge Diagnostics and Monitoring in OMICRON Electronics Middle east, since February He conducts theoretical and practical training courses, performs partial discharge measurements on HV assets and provides technical support to customers. He received his Bachelor s Degree in Science in Electrical Engineering with a focus on High Voltage Systems from the American University of Sharjah, United Arab Emirates in June 2015.

4 PD measurements on gas-insulated switchgear (GIS) PD measurements on gas-insulated switchgear (GIS) PD measurements within the ultra-high frequency range are very sensitive and have therefore been employed for PD detection in a long time. In new plants, UHF sensors are more and more integrated alternatively, mobile and external sensors can be used. The combination of MPD 600 and OMICRON s UHF 620 allows fast and easy PD measuring up to the UHF range and provides different frequency bandwidths. The UHF partial discharge (PD) measurement is an unconventional PD measurement technology, which can provide customers with an improved solution for sensitive PD measurements without (or fewer) interferences from external noise that limit the use of conventional/standard methods (IEC60270), especially on site. The UHF technology can make PD measurement more accurate, reliable, fast and easy. UHF stands for Ultra-High Frequency and the related PD measurement uses the frequency range of some 100 s MHz up to about GHz. This technology can be used for detection, measurement and monitoring of PD at different assets. GIS/GIL (Gas Insulated Substations / Lines) Application: PD measurements using the UHF method have been performed on GIS since more than 25 years. UHF technology is now used for the commissioning of new or maintained substations to ensure no moving parts (hopping particles) or protrusions on the conductors, which can lead to weakened insulation properties. To decouple PD signals out of the GIS, permanently mounted sensors are typically used. In some cases, retrofitting of older installations (using window couplers with an individual (depends on GIS type) design or a kinds of rubber bands with inside metallic foils for mounting at spacers (using the dialectical gap between two nearby outer conductor tubes existing at some GIS installation) is possible.these methods are described in IEC standards (e.g. IEC Chapter 6.29) or in the CIGRE (TF 15/ ).

5 PD Monitoring Systems for High-Voltage Cables For over ten years, OMICRON s Partial Discharge (PD) measuring technology has been known for its outstanding accuracy and informative value. This modern technology is now also available for online monitoring applications in quality assurance processes like e.g. after-installation testing of high-voltage cable systems (> 110 kv), joints and terminations. OMICRON Monitoring Solutions: > > Allow a condition assessment of the insulation of cable sections > > Ensure safe and reliable service operation, even in critical installations, through continuous assessment of the insulation status > > Extend the service life of high-voltage cable sections by means of continuous monitoring > > Provide early notifications for the prevention of dielectric failures Cable Joints and Terminations IEC standards prescribe type tests and routine tests to be performed by the manufacturer in order to ensure the high production quality of high-voltage cables and their accessories. The on-site installation of the high-voltage cables remains critical. Even very small dust particles and water droplets in joints and cable terminations can lead to critical defects. These defects can result in dielectric failures and thereby a reduced cable service life and serious power faults. In order to identify such weaknesses in proper time, the status of the insulation must be monitored continuously. With the OMICRON monitoring system, sensors continuously detect partial discharge activity at critical points in the cable system during operation. This data is acquired, pre-processed, stored in a database, and analyzed. Features > > Perfectly selected or adapted PD sensor, PD acquisition unit, and control computer components > > Excellent methods for data acquisition (gating, 3PARD, 3CFRD) can separate and recognize a variety of PD sources > > Visualization of individual trend curves for each individual PD source > > Customer-specific warning and alarm system HV cable joint HV cable OMS system unit HV cable termination concentrator unit inductive sensor fiber optic cable Setup of PD Monitoring Systems

6 Partial Discharge Analysis and Monitoring Partial discharge (PD) can damage insulation materials in power transformer bushings and windings. This can lead to their failure and costly outages. PD measurement is a reliable and non-destructive method used to diagnose the condition of a power transformer insulation system. OMICRON's PD analysis and monitoring solutions offer: > > Fiber optic data transmission for safe operation and improved signal-to-noise ratio > > Simultaneous and synchronous multi-channel PD measurement for more complete analysis > > Active noise suppression and gating methods for optimal accuracy despite high interference > > Powerful tools (3PARD and 3FREQ) for separating noise and multiple PD sources MPD series The MPD 500 and MPD 600 are highly developed devices for measuring partial discharges (PD). Even the smallest PD pulses can be separated from interference and analyzed. The MPD series is suitable for many different PD testing applications. PDL 650 The PDL 650 is used for acoustic PD fault localization on power transformers. The software compares the data from multiple sensors and enters it into a geometric model. This allows the fault location to be identified reliably. OMS 605 The OMS 605 is a portable partial discharge monitoring system designed to inspect high-voltage assets under load. It can be employed for temporary and periodic, condition-based monitoring.

7 Registration Please complete this form, scan it and return it via or fax to: OMICRON electronic Middle East Attn: Ms. Suzane Coelho Fernandes Please complete your details below; Yes I will attend: Seminar on Partial Discharge Diagnostics on HV Assets January 30, 2018 Phoenicia Intercontinental Hotel Beirut Registration deadline 23 January 2018 Mr Mrs Ms First Name:... Last Name:... Company:... Job Title:... Address:... Country:... Phone:... Mobile

8 OMICRON Seminar on Substation Save Testing your seat and and Diagnosis register by January 23, 2018 at the latest! October 23, 2017 Dubai, United Arab Emirates October 24, 2017 Abu OMICRON Dhabi, United electronics Arab Emirates Middle East Almoayyed Tower 39th floor Offices 3901 & 3902 Bldg Rd Block 428 Seef District - Manama, Bahrain events@omicronenergy.com Phone

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