2. PRESENTATIoPRESENTATIo
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Generator fault indicator with auto shut down and
overload control (GSM Based)

3. Project advisor:
Sir Mirza Shabbir

4.  Presenter
 Moon Shahzad

5. 5
Contents
 Historical back ground
 Introduction
 Motivation
 Objectives
 Requirements
 Operation and control
 Block diagram
 Over load reasons
 Function of current control circuit
 Hardware
 Applications
 Advantages
 Future aspects

6. Historical Back ground
 Presently at overload the whole power system is
tripped
 Halt the continuous power supply
 Reducing the efficiency
 Which than require manual procedure to come
back in operation.

7. Introduction
 Continuous supply
 Overload control
 Auto trip
 Healthy loads stay in operation
 Gsm alert
 Alarming buzzer
 Better supervision
 security

8. Motivation
 The reason which motivated us toward
this project is that we wanted a digital
control (Microcontroller and Gsm Based)
generator for controlling overload.

9. Objectives
1. Automatic and manual
mode of operation
2. To isolate the fault condition
in the shortest time possible
3. Sensing the system
parameters:
 Current, Voltage
 Temperature
 Frequency
 RPM (Revolution Per
Minute)
1. Protection system
2. Digital display using LCD
3. Serial port interfacing

10. Requirements
 circuit Designing of current and voltage control modules.
 Programming of PIC16F877A microcontroller. Designing PCB
for each module.
 Making circuit hardware of modules.
 Assembly of all parts on a single board.
 Finalize checking of the working of all circuit modules.

11.  Digital display of current and voltage rating
 Secterized loads
 Industrial, municipal load
 Agricultural,
 Voltage sensor
 Current sensor
 Protection relay
 Tripping overloaded load only
 Alerting system
Operation and control

13. Overload Reasons
 Reasons
 Under voltage
 Short circuit
 Over current

14. Function of current control
circuit:
 ADC is built in microcontroller to measure the analog
parameter.
 To monitor and display the generator parameters on the
LCD display.
 To monitor the variations in the value of parameters of
generator to determine whether these values exceed the
limit given in the programming.
 When any value of parameter exceed the predefined
limit specific numbed is send to main control unit through
serial port of microcontroller. This number is recognized in
the main control unit to trip the load at overload .
 A LCD is used for displaying the different parameters.

15. Hardware
 Microcontroller PIC16F877A
 GSM Modem
 Lcd
 Relays
 Crystal
 Integrated circuits
 sensors
1.Current transformer
2.Voltage transformer
3.Rpm sensor
4. MAX232

16. Hardware Ratings

17. Hardware Ratings

18. Current monitoring circuit

19. Voltage monitoring circuit

20. Advantages
 Reliable power source
 Only trips the load causing overload
 Better supervision
 Improve economy
 Efficient system
 Security in off shift or no load timings

21. Applications
Industrial base
Banks, Malls, hospitals
Housing schemes, big complexes
Security agencies
Universities, colleges
National grid
Wapda

22. Future aspects

24. Queries