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SAS

SAS

Substation Automation System
Communication with various Intelligent Electronic Devices (IEDs) is possible and analysis of the IED relay curve and accident function increases the convenience of operation through the remote setting function of the IEDs. The bay-status indicating function and others provide support for large capacity data communication in real time by applying the Real time OS and TCP/IP protocol.

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Description

Content Description
SAS station · Collects field information through communication with CSD using TCP/IP protocol
· Data acquisition and processing in real time for all substation facilities such as GIS, IEDs, TR, Security equipment, and others
· Executes automatic control functions such as accident recognition, auto transfer, and power factor control in all substation facilities
· Analyzes accident type and operational conditions through the operating curve data of the IEDs
CSD
(Communication
Server Device)		 · Provides operational information on the power equipment to the upper energy management system that controls the power supply and distribution line
· Controls the power equipment by the order of energy management system
· The communication control device is applied to the substation to acquire, analyze and process the system operation data
RTU · Acquires the operation information of security equipment and others not equipped with IED and transmits it in CSD
· The message transmitted via CSD is analyzed in order to perform the command and the result is returned in this device
Protective Relay
Board		 · Accommodates the IEDs for the protection of GIS, TR, and others in order to communicate through CSD at high-speed
· Applies Intelligent Electronic Devices (IEDs) equipped with a communication function

Content Description
Operation Support · System operation screen, acquired information display, operator/engineer support, system operation status monitoring
Automatic Control · Automatic interlocking, synchro-check, balanced voltage regulation (Tap-changer control), transformer load balance control
· Automatic power failure/return control, load shedding, automatic re-closing function, power factor control
Facility Protection · Generator protection, bus protection, bay protection, transformer protection, power line protection, motor protection
Data Acquisition and Application · Remote data acquisition and decision, event alarm report record, accident waveform capture
Data Link · Support of various communication protocols
Facility Status
Monitoring		 · GIS malfunction condition, circuit breaker condition, transformer condition

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