Top Products
Filter by
Didn't find what you are looking for? We're here to help!
124 Item(s) found
Explore the complexities of current transformer (CT) saturation's impact on protective relay performance in high fault current scenarios, examining the importance of accurate CT selection and contrasting ETAP's saturation analysis capabilities with traditional methods in a real-world scenario, providing insights to enhance protective relay operation and system reliability.
I categorize findings from arc flash study reports, noting errors in spelling, grammar, data input, and layout, but the most critical, like inconsistent results, demand attention; I rely on the ETAP arc flash calculator to detect significant inaccuracies, exemplified by a case with a GE Prolec transformer, emphasizing the need for meticulous data review to prevent mislabeling incidents.
Explore how ETAP can assist in meeting European directives for arc flash studies and understand the distinctions between North American and European electrical safety standards, offering crucial insights for professionals.
Explore how outdated Arc Flash Study findings were overcome by utilizing ETAP software to update equipment data, validating short circuit currents, and generating fresh Arc Flash results aligned with the 2018 standard, providing the client with enhanced safety measures and confidence in their protocols.
Cities of the future will soon account for 90% of the world’s population growth and 75% of its energy consumption. The pressure on critical resources will increase. The New Administrative Capital in Egypt launched one of the country’s most ambitious development projects to date, setting standards in smart city living is ADMS. ETAP ADMS will manage, control, visualize and optimize power distribution required to run critical smart services for city operators, citizens, workers, and visitors alike. Learn how ETAP ADMS is utilized to support long-term sustainable, efficient smart city services that will support a safer, more innovative, and more prosperous Egypt.
How a failure, to properly perform protection studies, led to a significant substation safety incident and outage. ?Understanding minimum and maximum fault current values are critical in this case study. The shortcomings led to a fault not being removed fast enough. Short circuit impedances are very valuable, it is critical to have the right cables and impedances of the equipment. An excellent learning from this case study is that line to line arc flash fault exists much longer at medium voltage level. In low voltage we do not see those type of line-to-line arc flash faults because line to line arc flash fault will rapidly turn into a three-phase fault. The arc flash calculator is a great tool to estimate incident energy. The arc flash calculator shows both methods: below 15 kv we can use IEEE 1584-2018 to calculate incident energy at 15 Kv, and above our fault calculated method can calculate calories exposure during the fault.
A practical example of an internal review of a protection coordination study, including the definition of protective device settings & characteristics.
Design and commission of a green-site power system including protection coordination for the entire site and implementation of IEC61850 communications, inter-tripping, inter-locking and protection blocking schemes.
Konexa rolling out its integrated distribution model with multiple DISCOs across Nigeria. In its sub-concession area, Konexa will develop embedded generation capacity (solar PV), and invest in the distribution network (medium voltage line, distribution transformers, injection substations) and last mile reticulation (low voltage lines, smart metering infrastructure). In addition, Konexa will invest in and implement IT & OT systems and processes to drive operational efficiency and significantly reduce ATC&C losses. The first phase of the project would serve about 7,000 customers (C&I and residentials).
This presentation defines and demonstrates the importance of remote data collection of protection relays for the security and reliability of large power system networks. Oman Electricity Transmission Company grid stations contain more than 5000 rapidly expanding protection relays installed. In case of tripping incidences, the protection system would isolate the faulty primary equipment by actuating the switchgear. These isolated equipment restorations can be done faster if protection relays’ fault records and events can be retrieved through remote access at any time. ETAP and OETC jointly worked to provide remote relay access and data retrieval. The protection system model and relay data feed in a relay management system solution, is called ETAP eProtect. This system is connected through IEC 61850 and IEC 60870-5-103 protocol to linked relays, events, and fault records. Fault records are stored in a database for detailed analysis and validation. This presentation discusses the challenges faced, technical requirements, and benefits of the solution.