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Examoogle • User • info@examoogle.com • EE-2024-8821
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SCADA means
Supervisory Control And Data Acquisition
System Control And Data Acquisition
Super Control And Data Acquisition
None of above
Supervisory Control And Data Acquisition
Quick Summary: SCADA (Supervisory Control And Data Acquisition) is a control system architecture comprising computers, networked data communications, and graphical user interfaces for high-level process supervisory management. It is widely used in power systems to monitor, control, and optimize grid operations from a centralized location.
SCADA (Supervisory Control And Data Acquisition) is a control system architecture comprising computers, networked data communications, and graphical user interfaces for high-level process supervisory management. It is widely used in power systems to monitor, control, and optimize grid operations from a centralized location.
P=VIcosϕ — Used by SCADA for real-time active power monitoring
fsys=T1 — Monitored via SCADA to ensure grid frequency stability
The system works by collecting real-time data from field devices like RTUs (Remote Terminal Units) or PLCs (Programmable Logic Controllers) via sensors. This data is transmitted to a central Master Terminal Unit (MTU), where it is processed, displayed to operators via HMI (Human Machine Interface), and used to issue automated or manual control commands back to the field.
SCADA integrates data acquisition, telemetry, and supervisory control.
Essential for remote monitoring of Substations and Distribution Automation.
Utilizes communication protocols like DNP3, Modbus, and IEC 61850.
Provides alarm management to alert operators of system contingencies.
Centralized visibility of remote infrastructure
Improved operational efficiency and reduced downtime
Real-time decision making during faults
Vulnerability to cyber-attacks if not secured
High initial implementation and maintenance cost
Power grid load management
Oil and gas pipeline monitoring
Water distribution systems
Manufacturing automation
SCADA systems often interface with EMS (Energy Management Systems) in control centers.
Option B is incorrect because 'System Control' is too generic and does not capture the supervisory essence of the architecture.
A is correct — SCADA stands for Supervisory Control And Data Acquisition, which describes the process of remotely monitoring and managing industrial or power infrastructure.
In power system exams, remember that SCADA is for observation and control, while EMS (Energy Management System) is specifically for the optimization and economic dispatch of power systems.