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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.
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.
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.
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.
Steel Authority of India Limited (SAIL) is one of the largest steel-making companies in India and one of the Maharatnas of the country’s Central Public Sector Enterprises. ETAP was selected to upgrade the existing SLCC (Supervisory Load Control Centre) System for Power Distribution of Bokaro Steel Plant. This presentation will give insights into the project scope and deployment: The SCADA/PDMS system shall monitor and control the Distribution & Sub-Distribution stations and achieve the SCADA/PDMS functions, integrated with the SLCC control center. Bokaro Steel Plant (BSL) is having a client/server architecture-based SCADA System for monitoring and controlling of generation, import, and distribution of power through SLCC Control room at MSDS-I. The SLCC system is also connected to a central SLCC system located in Kolkata. RTUs for substations will be installed in various locations which are connected through a dedicated fiber-optic network to the server.
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.
A Ground Grid design project is presented in a steel plant in Mexico and the objective is to reduce the step and touch potentials in the area of electric arc furnaces of 50 kA connected to transformers of 13.8/0.6 KV and that in the moment of melting, they create dangerous currents for the workers who operate these furnaces. The project is executed from the field measurements of the resistivity of the ground and the design of the ground grid with the ETAP finite element method (FEM) and the construction of the grid is executed up to the foot of the ovens, thereby reducing said potentials to safe values for the workers, contributing to a safer work area.
ETAP Power System Software, with its various analysis modules is used to validate the design of Larsen & Toubro Construction – Buildings and Factories projects in airports, data centers, hospitals, office buildings etc. Network Analysis, such as Load Flow and Short Circuit Calculations, ensure load shedding and voltage drop within permissible limits, Transformer Sizing Analysis is utilized to meet standard requirements. Cable Sizing and Cable Pulling Modules, along with UG Thermal Analysis modules, validate cable routing at various underground locations. These tools allow for easy planning and approval at the initial project stage. On Safety and Protection – STAR curves help to find the correct protection and selectivity for prestigious projects with critical operations such as airports, data centers, office buildings and hospitals, to ensure smooth power flow without interruptions. Arc Flash Modules help us to quickly create & define Arc Flash Labels, as well as PPE requirements. Ground Grid Analysis is used for effective and economical earth mat design and sizing. Reliability Assessments are part of the design process to ensure the AIDI and CAIDI reliability metrics. Harmonic Analysis, for the sizing of active and passive filters allows for fine-tuning of filter design at the right locations.
At a given nuclear power plant, nuclear safety is directly dependent on a reliable source of electric power supplied via the plant’s auxiliary power system. The auxiliary power system typically consists of an MV and LV AC and a DC distribution system, powering thousands of individual loads and circuits, i.e., pumps, fans, valves, sensors, and controls specifically designed to protect the integrity of the nuclear reactor and containment structures. This presentation will explore past practices and recent developments in the online monitoring of such systems using a digital twin. The presentation includes the reasons for utilizing online monitoring, the advantages of using a digital twin versus simple data collection, and the multi-faceted benefits realized from such a system (i.e., business, safety, reliability).
This study simulates the impact of step loading on the transient stability of a 2 x 25 MW GTG-based captive power plant at one of the Chemical Fertilizer Plants located at Trombay, India. The variation of electrical frequency and terminal voltage of the generator during the most conservative step loading of one generator unit is studied. The loads divided in steps are switched at certain time intervals to determine whether the frequency profile of the system is within the acceptable limit of ±5%. Load Flow and Short Circuit Studies are performed on the entire power plant distribution network of the fertilizer plant in advance to check the adequacy of equipment ratings during normal and short circuit conditions with all verified input data. The step load response study is carried out with only one GTG unit running in isolation, feeding only the critical emergency loads. Transient behavior of the GTG unit is simulated with IEEE transfer function dynamic models, viz. AC8B model of excitation system (AVR) and IEEE GGOV1 model for turbine governing system using the in-built standard library in ETAP software version 16.1.0. Various parameters of the generator like speed, active and reactive power, bus voltage, and frequency are plotted for determining the transient performance of the GTG unit.
Electrical Power System Analysis & Operation Software
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