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The Reliability Assessment module for ETAP evaluates the availability and quality of distribution power systems. It can also make autonomous decisions to keep grids stable and reliable as more DERs come online. Using flexible input parameters, results can be quickly obtained for both radial and looped systems. Powerful calculation techniques allow engineers to choose the depth of system design and the associated results, and choose from a number of reporting formats.
Analysis of customer failure statistics show that, compared to other portions of electrical power systems, distribution system failures contribute as much as 90% towards the unavailability of supply to a load. These statistics show how important it is to assess the reliability of distribution systems.
This module is suitable for reliability analysis of large-scale distribution systems. By using this module, distribution system reliability can be assessed, and the merits of various resources and modifications can be quantitatively evaluated to make cost-effective decisions to achieve the greatest possible improvement in system reliability.
Reporting
All of these indices can be used to evaluate the reliability of an existing distribution system, and to provide useful planning information regarding improvements to existing systems and the design of new distribution systems.
Use of indices helps to efficiently model various power system elements and devices to include their effects on the distribution system reliability, such as fault isolation and load restoration through the operation of switching devices.
In order to analyze the sensitivity of reliability index EENS or ECOST with respect to failure rate of different elements, element contributions to that index and their rankings can be used. The rankings can be for a load point or the overall system.
The indices EENS, ECOST, and IEAR can be specifically for each load point, or for the overall system.
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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.
Assess system for greatest improvement at minimum cost with ETAP's Reliability Assessment.
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