Estrella - Secuencia de la operación


Star - Sequence-of-Operation

Protective Device Sequence-of-Operation

Descripción general

Star Sequence-of-Operation (SQOP) software evaluates, verifies, and confirms the operation and selectivity of the protective devices for various fault types at any location on one-line diagram, via normalized Time Current Characteristic Curve (TCC) views.

Sequence-of-Operation provides a system-wide solution for an accurate and realistic operating time and state of protective devices, such as relay, fuse, circuit breaker, trip devices, contactor, etc.

The operation time is calculated for each protective device based on its settings, time current characteristic, and interlocks for a specified fault location and type.

Star - Sequence-of-Operation Key Features

  • Graphically drag & drop faults on the one-line diagram
  • Displayed coordination on one-line diagram
  • View device operation sequence graphically
  • Graphical operation of interrupting devices on one-line diagram
  • Device failure & backup operation
  • Detailed relay actions (27, 49, 50, 51, 51V, 59, 67, 79, 87)
  • Current summation
  • Normalized (shifted) Time Current Characteristic Curves
  • Phase & Ground faults (symmetrical & asymmetrical)
  • Support of Max and Min (steady state) fault current for ANSI & IEC Standards
  • Sequence of events viewer with slider or automated mode of operation

Star - Sequence-of-Operation Capabilities

  • Evaluate the operating time & state of protective devices
  • Phase (3Ph, LL) & ground (LG, LLG) faults insertion at any location on one-line diagram
  • Calculate & display of the through fault currents on one-line diagram
  • Calculate maximum through fault currents based on ANSI and IEC standards
  • Calculate minimum steady state through fault currents for ANSI and IEC standards
  • Graphical animation of protective device operation
  • Sequential display of operated devices
  • Illustrate system wide coordination
  • Tabular and sorted display of fault currents and operating times via event viewer
  • Switch between automated or slider mode of operation  
  • One-to-one relation between event viewer and one-line diagram
  • Customizable report
  • Option to ignore Maintenance Switch in Sequence of Operation

 

Normalized Time Current Characteristic Curve

  • Normalized / Shifted TCC mode is an analysis feature in Star TCC View which is based on Sequence-of-Operation calculation.
  • This analysis mode provides a graphical view of the operation times of protective devices based on their corresponding settings and characteristics for specified fault location and type.
    Normalized TCC mode graphically displays the Time Current Characteristic Curves of protective devices in relation to one and another for a given fault.
  • The internal shifting (normalizing) of each Time Current Characteristic Curve is based on the individual through fault currents and voltage level.

Sequence of Event Viewer

The Sequence-of-Operation of protective devices are automatically calculated and listed in an Event Viewer, which is dynamically linked with the one-line diagram. This one-step concept utilizes an intelligent one-line diagram and performs a complete set of actions to determine the operation of all protective devices.

Sequence of event viewer provides two modes of operations. Autorun mode is for studying all events and Slider mode for studying individual events.

Autorun Mode

Slider Mode

Productos relacionados

Explora complementos y otros productos relacionados.

Ver todos los productos

Soluciones relacionadas

Lea sobre las soluciones donde se destaca este producto.

Ver todas las soluciones

Paquetes relacionados

Encuentre un paquete que incluya este producto como parte de su colección.

Ver todos los paquetes

Industrias relacionadas

Descubra cómo se utiliza este producto en diversas industrias.

Ver todas las industrias

Oil & Gas

Oil and gas exploration leads companies to some of the most remote, inhospitable locations on Earth in search of energy

Data Centers

ETAP offers advanced power analysis, simulation, and operation solution for the smart Data Centers

Manufacturing

Top manufacturers around the world depend on ETAP to meet the industry's rigorous requirements

Metals & Mining

ETAP brings significant energy savings to the industry by diverting non-essential loads during hours of high energy costs

Fossil Fuel Generation

From basic standby systems to 24/7 mission-critical generation, some of the world's most advanced power generation plants count on ETAP

Engineering Consulting

According to the Top 40 Electrical Design Firms published in EC&M Magazine, 100% of the Top 10 Electrical Design Firms rely on ETAP

Nuclear Generation

ETAP has established itself as the de facto standard for nuclear generation plants

Government & Defense

ETAP has been deployed at government institutions and armed forces facilities, worldwide

Renewables

ETAP enables designers and engineers to conceptualize the collector systems, determine wind penetration and perform grid interconnection studies

Academia

Colleges and universities use ETAP to teach students in electrical engineering to design, model, and analyze electrical power systems

Sistemas relacionados

Conozca los usos de este producto dentro de un sistema de ingeniería.

Ver todos los sistemas

Testimonios

Preguntas frecuentes

    Protection & Selectivity in Industrial Facilities

    Protection & Selectivity in Industrial Facilities

    PETRONAS RAPID project is the largest oil & gas refinery and petrochemical plant in Malaysia which is powered by a 1200MW utilities plant and connected to a 275kV Grid supply. The integrated ETAP model for the RAPID complex reached up to 5000 buses that consist of various distribution voltages from 400V up to 275kV. Protection Coordination evaluation study for the RAPID complex was performed using “PD Sequence-of-Operation” to identify abnormal relay behavior, which may not be observed in the conventional TCC curve. When simulating earth fault at 275kV system, there is sympathetic relay operation at all 275kV healthy feeders due to circulating earth fault current. The circulating earth fault current is more than 1pu, which will potentially cause a broader outage to the RAPID complex. Further analysis has been performed by the author and academician experts to ascertain the root cause of the circulating earth fault current. This presentation will discuss the root cause of sympathetic relay operation during 275kV earth fault simulations and the recommended solutions to mitigate the sympathetic operation. This will help engineering design firms and plant operators clearly understand the protection relay behavior during faults by utilizing ETAP special features.

    Play 14:56

    Capacitación y eventos

    ETAP Training

    Capacitación y eventos

    Obtenga una visión en profundidad de nuestro software de ingeniería eléctrica solicitando un curso de capacitación que se adapte a usted.

    Descúbrelo ahora

    ETAP Demo

    Explore ETAP Today


    Take a test drive of ETAP free for 30 days to experience for yourself the capabilities
    of ETAP solutions. Try out ETAP’s extensive collection of modules and analysis results
    on this cloud-based demo platform - anytime and anywhere. Start your online demo today!