Automatic Transfer Switch is a device for initiating an automatic changeover from mains supply to generator supply through many intermediate transfer stages which involves activating the fuel valve, choke valve and the generator starter.
In an Automatic Transfer Switch, everything is fully automatic. When the utility power goes out, the transfer switch signals your generator to start. Once the generator is running the transfer switch automatically connects your home or business to the generator. When the utility power is restored, the transfer switch reconnects your home or business to the utility. Then it turns off your generator and waits for the next power outage. This helps you to save fuel costs and it is much safer because of its user-free operation.
For example, in a home equipped with a backup generator and an ATS, when an electric utility outage occurs, the ATS will tell the backup generator to start. Once the ATS sees that the generator is ready to provide electric power, the ATS breaks the home's connection to the electric utility and connects the generator to the home's main electrical panel. The generator supplies power to the home's electric load, but is not connected to the electric utility lines. It is necessary to isolate the generator from the distribution system to protect the generator from overload in powering loads in the house and for safety, as utility workers expect the lines to be dead. When utility power returns for a minimum time, the transfer switch will transfer the house back to utility power and command the generator to turn off, after another specified amount of "cool down" time with no load on the generator.
TABLE OF CONTENTS
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRCT
TABLE OF CONTENT
CHAPTER ONE
- INTRODUCTION
- BACKGROUND OF THE PROJECT
- AIM/OBJECTIVE OF THE PROJECT
- SIGNIFICANCE OF THE PROJECT
- PURPOSE OF THE PROJECT
- STATEMENT OF PPROBLEM
- LIMITATION OF THE PROJECT
- APPLICATION OF THE PROJECT
- DEFINITION OF TERMS
- PROJECT ORGANISATION
CHAPTER TWO
LITERATURE REVIEW
2.0 LITERATURE REVIEW
2.1 REVIEW OF ELECTRICAL PHASES
2.2 REVIEW OF THREE-PHASE ELECTRIC POWER
2.3 REVIEW OF CAUSES OF POWER FAILURES
2.4 POWER SUPPLY RELIABILITY
CHAPTER THREE
3.0 CONSTRUCTION METHODOLOGY
3.1 BLOCK DIAGRAM OF THE SYSTEM
3.2 CIRCUIT DIAGRAM
3.3 CIRCUIT DESCRIPTION
3.4 SYSTEM OPERATION
3.5 COMPONENTS LIST
3.6 DESCRIPTION OF MAJOR COMPONENTS USED
CHAPTER FOUR
4.0 RESULT ANALYSIS
4.1 CONSTRUCTION PROCEDURE AND TESTING
4.2 ASSEMBLING OF SECTIONS
4.3 CONSRUCTION OF THE CASING
4.4 ECONOMIC OF THE PROJECT
4.5 PROJECT VIABILITY
4.6 PROJECT RELIABILITY
4.7 PROJECT MAINTAINABILITY
4.8 PROJECT EVALUATION
4.9 TESTING, TROUBLESHOOTING AND REMEDY
CHAPTER FIVE
- CONCLUSIONS
- RECOMMENDATION
5.3 REFERENCES
RELATED TOPICS/MATERIAL
1]. DESIGN AND CONSTRUCTION OF AN AUTOMATIC TRANSFER SWITCH (ATS)
3]. DESIGN AND CONSTRUCTION OF A PHASE FAILURE CONTROLLER FOR THREE PHASE EQUIPMENT
4]. DESIGN AND CONSTRUCTION PHASE SEQUENCE INDICATOR
5]. DESIGN AND CONSTRUCTION OF A PHASE SEQUENCE CHECKER FOR THREE PHASE SUPPLY
6]. DESIGN AND CONSTRUCTION OF A MICROCONTROLLER BASED AUTOMATIC 3-PHASE SELECTOR
7]. DESIGN AND CONSTRUCTION OF AN AUTOMATIC PHASE SELECTOR FOR 3-PHASE POWER SUPPLY
8]. DESIGN AND CONSTRUCTION OF AN AUTOMATIC CHANGEOVER SWITCH WITH GENERATOR TRIP-OFF DEVICE
9]. DESIGN AND CONSTRUCTION OF A SINGLE PHASE AUTOMATIC CHANGEOVER SWITCH WITH PHASE SELECTOR
10]. DESIGN AND CONSTRUCTION OF AN AUTOMATIC CHANGEOVER FOR 3-PHASE POWER SUPPLY
11]. CONSTRUCTION OF AUTOMATIC CHANGE OVER WITH GENERATOR TRIP OFF (USING A REMOTE CONTROL)
12]. DESIGN AND CONSTRUCTION OF A 60A THREE PHASE AUTOMATIC CHANGEOVER SWITCH
13]. DESIGN AND CONSTRUCTION OF AN AUTOMATIC CHANGE OVER SWITCH (3.7KVA)
14]. DESIGN AND CONSTRUCTION OF AN AUTOMATIC CHANGEOVER SWITCH USING CONTACTOR
15]. DESIGN AND CONSTRUCTION OF AN AUTOMATIC CHANGEOVER SWITCH WITH PHASE MONITORING DEVICE
17]. DESIGN AND CONSTRUCTION OF AN AUTOMATIC CHANGEOVER SWITCH
18]. DESIGN AND CONSTRUCTION OF A SINGLE PHASE AUTOMATIC CHANGEOVER SWITCH
19]. DESIGN AND CONSTRUCTION OF A 3.5KVA AUTOMATIC INVERTER CHANGEOVER
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