This document discusses the design of a SCADA system to remotely monitor electrical parameters like voltage, current, power, and power factor at power stations during power transmission. The system uses potential transformers to measure the parameters, which are sent to a microcontroller. If the parameters exceed predefined values, a relay will operate to isolate the circuit and protect it. The status of the relay is transmitted to remote power stations using radio frequency technology. The system aims to increase efficiency, minimize faults, and maximize profitability during power transmission.

1. BY
PATNAM SHRUTHI

2. INTRODUCTION OF SCADA:
•SCADA is one of the fundamental way to
monitor and control the equipments in the
huge industries.
•These systems encompass the
transfer of data between a SCADA
central terminal unit and a number
of Remote Terminal units.
•These system is relatively simple to
detect the faults .

3. OBJECTIVE OF THE PROJECT:
•To find the remote electrical parameters like voltage, current
,active and reactive power, power factor at power stations
during transmission of power.
•To protect the electrical circuitry by operating an
electromagnetic relay whenever the electrical parameters
exceeds the predefined values.
•To send the information of the relay status to the remote
power stations by using wireless Radio frequency Technology.

4. EXISTING SYSTEM:
1stGeneration SCADA system:
2nd Generation SCADA system:

5. PROPOSED SYSTEM:
Network

6. BLOCK DIAGRAM:

7. MAIN COMPONENTS OF PROJECT:
Potential transformers
Atmega16 microcontroller
Regulated power supply
Relays
Isolators
Radio frequency Module
LCD display

8. SCHEMATIC DIAGRAM:

9. FLOW CHART:
c

10. c

11. WORKING:
Wireless RF
Technology
Transmission Lines
Relay &
Isolators
Potential
Transformer
R.P.S
Micro
controller
Parameters
display
RF Antenna
RF
RECEIVER
Micro
Controller
R.P.S
Status
Display

12. ADVANTAGES:
Increase Efficiency
•Minimize faults
•Isolate and precisely locate faults
Maximize Profitability
•Reduce failures
•Reduce operations overhead
•Reduce man power requirement

13. DIS-ADVANTAGES:
•Initial cost is more to establish SCADA system in real
time process.
•Maintenance cost is more in real time process.
•Construction of SCADA is Massive in real time process.
•SCADA system can be damaged by environmental
changes

14. FUTURE SCOPE:
The researches are being done by electrical engineering
scientists in Gujarat and Pune to reduce the cost of SCADA
and to implement them in small scale industries and
medium scale industries in future.

15. CONCLUSION:
We wanted to conclude that this project addresses how
to measure parameters and control flow of high current
and high voltage in transmission lines by tripping the
relays .These relays get activated whenever electrical
parameter exceed predefined values. By using RF
technology the parameter data status is transmitted to
Remote power stations.