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Examoogle • User • info@examoogle.com • EE-2024-8821
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Power system monitoring is usually done by
ETAP
SCADA
Matlab
PSPM
SCADA
Quick Summary: SCADA (Supervisory Control and Data Acquisition) is the standard industrial control system architecture used for real-time monitoring and control of large-scale power systems. It collects telemetry data from Remote Terminal Units (RTUs) or Intelligent Electronic Devices (IEDs) located at substations to provide centralized visibility to operators.
SCADA (Supervisory Control and Data Acquisition) is the standard industrial control system architecture used for real-time monitoring and control of large-scale power systems. It collects telemetry data from Remote Terminal Units (RTUs) or Intelligent Electronic Devices (IEDs) located at substations to provide centralized visibility to operators.
P=3VLILcosϕ — represents the real power calculated based on monitored SCADA parameters
Q=3VLILsinϕ — represents the reactive power monitored via SCADA telemetry
SCADA operates by polling field devices at remote substations to acquire data such as voltage, current, and switch status. This information is transmitted over communication channels to a central Master Terminal Unit (MTU), where it is processed, archived, and displayed on a Human-Machine Interface (HMI) for real-time decision-making.
SCADA enables remote monitoring of substations, reducing the need for manual site visits.
It supports critical functions like Automatic Generation Control (AGC) and State Estimation.
Modern SCADA systems utilize protocols like DNP3, IEC 60870-5-101/104, and IEC 61850.
Improved operational efficiency and response time during outages.
Enhanced security through real-time situational awareness.
Comprehensive data logging for post-disturbance analysis.
Vulnerability to cyber-attacks if not properly secured.
High initial investment for hardware and communication infrastructure.
Grid frequency management and load balancing.
Remote switching of circuit breakers and isolators.
Monitoring thermal limits and power quality parameters.
ETAP is a specialized power system simulation software used for offline design, analysis, and modeling rather than real-time monitoring.
Matlab is a programming environment used primarily for mathematical modeling and simulation.
PSPM is not a standard industry term for power system monitoring systems.
B is correct — SCADA is the industry-standard framework designed specifically for real-time supervisory control and monitoring of electrical power systems.
In power systems, always distinguish between 'simulation' tools (like ETAP or Matlab, used for design) and 'operation' tools (like SCADA or EMS, used for live grid management).