minor project presentation

1. PRIORITISING THE LOAD CONSIDERING
ECONOMY OF PARALLEL TRANSFORMER
A
PROJECT ON
MINOR PROJECT PRESENTED BY:-
………..

2. CONTENT
INTRODUCTION
OBJECTIVE
BLOCK DIAGRAM
WORKING
COMPONENT & SPCIFICATION
ADVANTAGES AND DISADVANTAGES
REFERENCES
FUTURE WORK

3. Manual Load Shedding
Periodically Monitoring On Voltage And
Current.
INTRODUCTION

4. OBJECTIVE
Our project works on following aspects
Reduce the transformer losses.
Reliability and economy of parallel operation.
Load balance can reduce the life loss of the transformer.
Automatic load balancing based on priority.

5. COMPONENT LIST & SPECIFICATION
POWER SUPPLY (5 VOLT,12 VOLT)
MICROCONTROLLER (ATMEGA328P)
RELAY DRIVER (ULN2003A)
CURRENT SENSOR (ACS712)
TRANSFORMER (Single phase 500VA,230/230V,2.2A,50Hz)
LCD (16*2)

6. Transformer
AC 230/ AC 12V, 2A
Rectifier
DC 12V
Regulator
DC 5V/12V
1Φ AC Supply
230V, 50 Hz
Current
Sensor
Relay Driver
Relay
Driver

7. POWER SUPPLY
230 V
AC
50 Hz
5V & 12V
DC
1V step down
Transformer
Filter(470µ
)
5V/12V
Regulator
Bridge
Rectifier
PCB

8.  An electromechanical relay contains an electromagnetic coil (right side of image) that
moves a metal arm to make and break an electrical connection.
 Electromechanical relays can be used to switch high current and also AC devices.
ELECTROMECHANICAL RELAY

9. CURRENT SENSOR
The terminals of the conductive path are electrically isolated from
the sensor leads
The ACS712 outputs an analog voltage output signal that varies
linearly with sensed current.

10. ADVANTAGES:-
Parallel operation of transformer Minimize The Transformer Losses.
Automation of load sharing Reduce Human Interference.
Increase Reliability Of Power System.
DISADVANTAGES:-
Initial cost of replacement is high
Control and protection Is more complex

11. REFERENCE
• C.L WADHWA
• WIKIPEDIA
• I J NAGRATH & KOTHARI
• W D STEVENSON
• GATE NOTES OF MADE EASY AND ES

12. THANK
YOU