What is sub station automation system?

What is sub station automation system?

A substation automation system is a collection of hardware and software components that are used to monitor and control an electrical system, both locally and remotely.

How does substation automation system work?

Substation automation refers to using data from Intelligent electronic devices (IED), control and automation capabilities within the substation, and control commands from remote users to control power-system devices. Many power-system automation are monitored by SCADA.

What are the main three levels of substation automation system?

Levels of Substation Automation – Substation integration and automation can be broken down into five levels. The lowest level is the power system equipment, such as transformers and circuit breakers. The middle three levels are IED implementation, IED integration, and substation automation applications.

What is gateway in substation automation?

Gateways are hardened communication devices which collect metering, status, events and fault report data from any protection device inside substation. The gateway sends this information upstream to a Control center, and transfers commands issued from the control center to devices inside the substation.

What is substation control system?

The substation control system is complete system by which all the events , measurements operation and control of the substation is achieved from the local PC as well as the Remote control centre . The following are the main application of the SCS. Setting the Relay from the Local PC as well as the Remote Control centre.

What is the difference between RTU and IED?

IEDs are used as a more modern alternative to, or a complement of, setup with traditional remote terminal units (RTUs). Unlike the RTUs, IEDs are integrated with the devices they control and offer a standardized set of measuring and control points that is easier to configure and require less wiring.

What is Goose protocol?

GOOSE protocol is an event-based protocol. The concept of GOOSE communication is that the publisher periodically sends messages and when an event happens (ex. The subscriber receives all messages from the system, but filters and parses only the messages sent within the subscribed topic.

What are the benefits of substation automation?

It is evident that substation automation is implemented to reduce human intervention and to improve the operating efficiency of the system. Optimization of assets and reduction of operating costs in the long run are added advantages of the substation automation.

How does SCADA work in substation?

Substation Control using SCADA SCADA system continuously monitors the status of various equipments in substation and accordingly sends control signals to the remote control equipments. Also, it collects the historical data of the substation and generates the alarms in the event of electrical accidents or faults.

What is control room in substation?

The various supervision, control and protection functions are performed in the substation control room. The relays, protection and control panels are installed in the controlled room.

What is substation control and monitoring system?

A substation control and monitoring system (SCMS) is composed of digitally connected devices that exchange information using multiple communications protocols to protect, control, and monitor entire substation automation applications remotely from respective control centers.

What is the need of substation automation?

Substation automation helps in increased performance and reliability of electrical protection, advanced disturbance and event recording capabilities, aiding in detailed electrical fault analysis, display of real time substation information in a control center, remote switching and advanced supervisory control.

What should be included in a substation design diagram?

These diagrams contain information corresponding to equipment such as: Circuit breakers and disconnectors, Protection and control systems for transformers, busbars, transmission lines and feeders, Motor and heating circuits that operate on DC, and Emergency lighting and sockets.

What does a Substation Automation System ( SAS ) do?

A Substation Automation System (SAS) provides facility to control and monitor all the equipment in the substation locally as well as remotely. A Supervisory Control & Data Acquisition (SCADA) system provides users with a Human Machine Interface (HMI) which can be used for controlling, monitoring and protection of devices.

What is the protection system for a substation?

The protection system for the substation consists of various current transformers connected to relays that are designed to prevent overcurrent, a relay for the voltage transformer with a number of grounding contacts, as well as communication with other substation and regional control center (SCADA).

Which is an example of a block diagram?

The diagram should mimic system architecture and the physical installation if possible, so devices located in adjacent panels are shown adjacent on the drawing. Figures 1, 2, and 3 are examples of block diagrams. Figure 1 shows a small, simple block diagram for a metering system connected to a generation plant with IRIG-B