Recent Trends
329 Item(s) found
Remote Management of Protection Relays
- 23:45
- Case Study
This presentation defines and demonstrates the importance of remote data collection of protection relays for the security and reliability of large power system networks.
Reactive Power based LCOE Analysis
- 23:55
- Case Study
High penetration of solar PV energy fed into an electrical grid brings its share of challenges making the grid volatile which requires stabilizing variable energy. This presentation addresses one such challenge, of voltage profile improvement with reactive power compensation at the point of interconnection. A solar PV plant is rated in terms of power (either AC or DC) and is typically not rated for their reactive counterparts (MVAr). IEEE 1547/UL 1741 compliant inverters will typically not have reactive power capability and operate with a unity power factor. Although modern inverters have a capacity to supply reactive power in the range of +0.9 lead/-0.9 lag, the PV plant is rated based on the AC power supplied by the inverter at unity PF. Operational data sourced from various plants in India suggest that a typical utility-scale PV plant provides reactive energy in the range of 7% to 10%. This leads to an inherent error in the per-unit cost calculation, as when the inverter providing the reactive power, the active power is hampered. This paper showcases a cost-to-benefit analysis of various scenarios, such as unity power.
Using ETAP to Evaluate Ground Fault Trips in a Microgrid
- 21:17
- Case Study
Adding distributed generation sources to existing power distribution systems and the implementation of islanding microgrid capability introduce protection and control challenges if not properly designed. Each new generator may present a new source ground fault current to the system, which can result in unanticipated breaker operation. Energy Systems Group, was using ETAP to model the system and check coordination of local and remote breakers can reduce downtime and troubleshooting.
Generator Brush Collector Ring’s Arc Flash Hazard, A Safety Concern!
- 14:49
- Case Study
For some types of generator exciter systems, collector rings and brushes are used to provide energy from the exciter to the rotating field. The brushes wear down and constantly need to be replaced with the unit on-line and while brush/ring assembly is still energized, a risky and unsafe maintenance operation and may cause a serious harm. A potential shock and arc-flash hazard. This presentation addresses the important and dangerous maintenance of worn-down collector rings and brushes, electrical safety, lack of standards and guidelines, and a first possible calculation method.
AC and DC Arc Flash Methods for Renewable Energy Systems
- 25:46
- Case Study
This presentation will address the difficulties and lessons learnt on performing arc flash analysis using available methods (outside the voltage limits of IEEE 1584-2018 standard) on a 2.3 MW PV generation facility. The analysis includes system modeling, short-circuit, arc flash (both AC and DC) using various applicable calculation methods that best fit this application along with available tools in ETAP and generating worst-case arc flash deliverables.
AC Arc Flash Analysis for a Datacenter Network in Italy to determine the PPE for Workers using ETAP
- 17:04
- Case Study
Arc Flash Analysis was performed on a new datacenter building in Italy, calculating Incident Energy and Arc Flash Boundaries at several locations, from the main 15kV distribution switch gears down to the main LV distribution switchboard and diversionary panel boards in each segment. The studies were performed using ETAP Arc Flash software to identify the correct personal protection equipment (PPE) for engineering staff during maintenances operations. Standards applied include: NFPA 70E-2021, IEEE 1584-2018, IEC 60909 (2016).
GreeNext to Provide Sustainable and Resilient Energy-as-a-Service, in Collaboration with ETAP
- 19:50
- Case Study
This presentation introduces GreeNext, a joint venture providing sustainable and resilient energy solutions to commercial and industrial customers through solar and battery hybrid microgrid technology. Learn how and why GreeNext will utilize ETAP Software and controller hardware to increase deployment speed and provide an additional layer of reliability for Data Centers.
Sustainable Transportation - SCADA & Maintenance Planning – MMRC Project Update
- 20:00
- Case Study
Today’s Transportation businesses call for sustainable mobility. The goal is to deliver an end-to-end digital solution throughout the asset lifecycle to optimize critical mobility infrastructure management for the optimal customer experience in rail, airports, roads, and ports.
Modeling and Analysis of a Microgrid for a Wastewater Treatment Plant - AECOM
- 16:21
- Case Study
Engineering and operation objectives of mission-critical facilities require a reliable and secure power supply system. Microgrids have become the leading technological solution for a resilient and sustainable supply of electricity for critical infrastructures. This paper presents ETAP-based power system studies of a microgrid designed for a mission-critical facility, a wastewater treatment plant (WWTP). The microgrid consists of a behind-the-meter (BTM) solar photovoltaic (PV) system, a battery energy storage system (BESS), a combined heat and power (CHP) generator, and standby diesel generators. We modeled this microgrid by leveraging the ETAP software and performed power system studies for both grid-connected and islanded modes of operation. Several scenarios were created based on different loading conditions and power source combinations, which are utilized to validate the power system studies. We will discuss the model of the power system investigated, operational strategy and sequences of operation, findings, challenges, lessons learned, and future works.
Powering IT/OT Convergence for DC Management in Data Centers with ETAP
- 21:26
- Case Study
Electrical infrastructure can only be managed by including both equipment and data. Transforming electrical data to information and knowledge for decision-makers of mission-critical facilities requires IT-compatible software with the latest technologies’ integration capabilities. This presentation shows how ETAP enables end-users to achieve sustainable operations in their critical facilities by fulfilling OT/Site Management and IT Management requirements. ETAP’s unique features are configured with respect to data center topology and sustainable operation principles. These features are enriched as we have positioned ETAP in the corporate environment of end-users, where their corporate IT standards, services, and tools are integrated. As the title suggests, both OT and IT protocols are commissioned together, and the management of electrical infrastructure is powered by IT services via ETAP.
