PRESENTATIoNPRESENTATIoN

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

Project advisor:

Sir Mirza Shabbir

Presenter Moon Shahzad

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

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.

Introduction

Continuous supply

Overload control

Auto trip

Healthy loads stay in operation

Gsm alert

Alarming buzzer

Better supervision

security

Motivation

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

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)

4. Protection system

5. Digital display using LCD

6. Serial port interfacing

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.

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

Overload Reasons

Reasons Under voltage

Short circuit

Over current

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.

Hardware Microcontroller PIC16F877A GSM Modem Lcd Relays Crystal Integrated circuits sensors

1.Current transformer2.Voltage transformer3.Rpm sensor4.MAX232

Hardware Ratings

Hardware Ratings

Current monitoring circuit

Voltage monitoring circuit

Advantages

Reliable power source

Only trips the load causing overload

Better supervision

Improve economy

Efficient system

Security in off shift or no load timings

Applications

Industrial base

Banks, Malls, hospitals

Housing schemes, big complexes

Security agencies

Universities, colleges

National grid

Wapda

Future aspects

Queries