ppt on power system automation on scada based

1. Prepared by-
SHAIK ABBAS
B. E. Electrical
Roll no: 1604-13-734-302
POWER SYSTEM AUTOMATION
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2. 1. Introduction
2. SCADA
3. Components of SCADA
4. Process of SCADA in Power system
5. Advantages
6. Disadvantages
7. Applications
8. Conclusion
INDEX
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3. Electrical power system-
Generation system – Generation of electricity by different sources
Transmission system -Generating station & Distribution substation are
connected by transmission system
Distribution – connects all transmission lines to load
INTRODUCTION-
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4. Electric protection
Control
Measurement
 Monitoring
WHAT IS POWER SYSTEM AUTOMATION
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5.  SCADA – Supervisory Control
and Data Acquisition
 SCADA refers to a system
that collects data from
various sensors at a factory,
plant or in other remote
locations and then sends this
data to a central computer
which then manages and
controls the data at
supervisory level.
SCADA
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6. LEVELS OF SCADA
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7. 1. Instrument transformer
2. Transducer
3. Relay
4. RTU
5. Meter
6. Digital fault recorder
7. PLC
8. HMI
COMPONENTS OF SCADA
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8. COMPONENTS
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Instrument TF’s Transducers Meter

9.  RTU is a microprocessor-controlled electronic
device that interfaces transducer & MTU by
transmitting telemetry data to a master system,
and by using messages from the master
supervisory system to control connected
objects. Another term that may be used for RTU
is remote tele-control unit.
Types of RTU
1) Singe Board RTU
2) Modular RTU
REMOTE TERMINAL UNIT (RTU)
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10.  A programmable logic controller, PLC or
programmable controller is a digital computer used for
automation of typically industrial electromechanical
processes, such as control of machinery on factory
assembly lines, amusement rides, or light
fixtures. PLCs are used in many industries and
machines.
 For protection, control and metering Logical operations
are made by using switches
 PLC performs the logical operations and displayed the
operation on computer screen
PROGRAMMABLE LOGIC CONTROLLER (PLC)
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11.  Human Machine Interface commonly known
as HMI are deployed for control and
visualization interface between a human and
a process, machine, application and
appliance. Increasingly, HMIs are becoming
an integral part of Factory Automation.
HUMAN MACHINE INTERFACE
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12.  The SCADA consist of Hardware and Software components.
 The hardware collects and feed data into a computer with SCADA
software installed.
 The data is then processed by the computer before presenting it in a
timely manner.
COMMUNICATION AND SOFTWARE
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13.  Any device incorporating one or more
processors with the capability to receive or
send data/control from or to an external
source (e.g., electronic multifunction meters,
digital relays, controllers)
INTELLIGENT ELECTRONIC DEVICE
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14. A digital fault recorder (DFR), is an IED
that records information about power
system disturbances.
It is capable of storing data in a digital
format when triggered by conditions
detected on the power system.
Harmonics, frequency, and voltage are
examples of data captured by DFRs.
DIGITAL FAULT RECORDER
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15. SYSTEM CONCEPT OF SCADA
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16.  A substation is controlled and monitored in real time by a
Programmable Logic Controller (PLC) and by certain specialized devices
such as circuit breakers and power monitors.
 Data from the PLC and the devices is then transmitted to a PC-based
SCADA node located at the substation.
 One or more PCs are located at various centralized control and
monitoring points.
OPERATION (EXAMPLE)
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17. The links between the substation PCs and the central station PCs are
generally Ethernet-based and are implemented via the Internet, an
intranet and/or some version of cloud computing.
SCADA systems typically allow commands to be issued from central
control and monitoring points to substations, these commands can
enable full remote control.
OPERATION(contd…)
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18. RTU(remote terminal
unit)
PLC
Data Acquisition
Server
User interface
(HMI)
Communications
Equipment and software
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19. AUTOMATION PROCESS
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20.  Efficient with less manpower
 Flexible, Simple, Reliable
 Self Checking
 Portable
 Provides Rapid Response to Emergencies
 Improve record
 Limit the frequency of accidents
ADVANTAGES
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21.  Lack of train personal
 Initial cost is high
 Troubled Alarms
DISADVANTAGES-
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22.  Electric power generation, transmission and distribution: Electric
utilities detect current flow and line voltage, to monitor the operation of
circuit breakers, and to take sections of the power grid online or offline.
 Buildings, facilities and environments: Facility managers use SCADA to
control HVAC, refrigeration units, lighting and entry systems.
 Manufacturing: manage parts inventories for just-in-time
manufacturing, regulate industrial automation and robots, and monitor
process and quality control.
APPLICATIONS OF SCADA
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23.  Mass transit: Regulate electricity to subways, trams and trolley buses; to automate
traffic signals for rail systems; to track and locate trains and buses; and to control
railroad crossing gates.
 Water and sewage: State and municipal water utilities use SCADA to monitor and
regulate water flow, reservoir levels, pipe pressure and other factors.
 Traffic signals: Regulates traffic lights, controls traffic flow and detects out-of-order
signals.
APPLICATIONS(contd….)
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24. SCADA TRENDS
Open Protocols
 Open industry standard protocols are replacing vendor-specific proprietary communication
protocols
Interconnected to Other Systems
 Connections to business and administrative networks to obtain productivity improvements and
mandated open access information sharing
Reliance on Public Information Systems
 Increasing use of public telecommunication systems and the internet for portions of the
control system
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25.  The government of India has decided to integrate all the state power
utilities. Unified load dispatch Centre has to be build. So automation
has lot more advantages as it increases efficiency and increase
standardization.
CONCLUSION-
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26. https://en.wikipedia.org/wiki/SCADA
http://www.iosrjournals.org
http://www.electricaltechnology.org/2015/09/scada-systems-for-electrical-
distribution.html
http://applicationofscada.blogspot.in/?m=1
REFERENCES
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27. ANY QUESTIONS
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