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CHARGING SYSTEMS Induced Voltage AC Charging SystemsPreliminary Checks AC Generator Service Converts Mechanical Energy into Electrical Energy
INDUCED VOLTAGE 3 Stationary Windings (stator)Rotating Claw Shoes (rotor) 12 Volts – 300 Volts Out normal output volts
AUTOMOTIVE CHARGING SYSTEMPurpose: (1) Provide electrical power to the vehicle while the engine is running (2) Charge the battery Components: Alternator, Voltage Regulator, Wiring, Indicator, Drive Belt
ALTERNATOR COMPONETS Rotor Stator Housings/ Frame Shaft & BearingsTerminals Slip Rings Cooling Fan Belts Rotor Stator Housings/ Frame Shaft & Bearings Drive Pulley & Fan Diodes Regulator
STATOR Stator is stationary Does not moveElectricity is induced in the stator
ROTOR Rotor Rotates-spins Magnetic field is made in ROTOR2 pole shoes N and S Windings Slip rings
SLIP RING END FRAME BAT terminal hot at all times
DRIVE END FRAME
HEAT SINK & RECTIFIER
ALTERNATOR OPERATION Three items necessary to produce current flow1- Conductors (stator) 2- Magnetic Field (rotor) 3-Motion (belt drive from crankshaft)
Alternator Operation DC Rectification Voltage RegulationHalf Wave Full Wave Voltage Regulation Sensing Voltage Field Circuits
CONVERTING AC to DC Alternator produces AC due to north and south magnet Diode blocks current flow in one direction converting AC to DC Current flow is DC at battery terminal
VOLTAGE REGULATION Integral RegulatorUses Transistors and a Zener Diode Controls current to the Field Winding in the Rotor Low Voltage On High Voltage Off
Electronic RegulatorsIntegrated Circuit Voltage Regulators Fail-Safe Circuits Computer Regulation
Old Voltage Regulators
Indicators Indicator Lights Voltmeter Ammeter
Basic Checks Safety Precautions Inspection General Tests
General Tests Voltage Output Test Current Output TestRegulator Bypass Test Oscilloscope Checks Circuit & Ground test
ALTERNATOR LAB Disassemble alternator Learn all partsPass instructor’s quiz Learn operation Reassemble alternator
1 Copyright © 2010, Elsevier Inc. All rights Reserved Fig 2.1 Chapter 2.
By D. Fisher Geometric Transformations. Reflection, Rotation, or Translation 1.
Unit C: Agricultural Power Systems
Starting System Principles
1 INTRODUCTION TO ELECTRICAL THEORY 2 What is Electricity? The controlled flow of electrons in an electrical circuit. A circuit must always be a complete.
Jeopardy Q 1 Q 6 Q 11 Q 16 Q 21 Q 2 Q 7 Q 12 Q 17 Q 22 Q 3 Q 8 Q 13
Jeopardy Q 1 Q 2 Q 3 Q 4 Q 5 Q 6Q 16Q 11Q 21 Q 7Q 12Q 17Q 22 Q 8 Q 13 Q 18 Q 23 Q 9 Q 14 Q 19Q 24 Q 10 Q 15 Q 20Q 25 MagnetismTermsElectricityPioneersCircuits.
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DIVIDING INTEGERS 1. IF THE SIGNS ARE THE SAME THE ANSWER IS POSITIVE 2. IF THE SIGNS ARE DIFFERENT THE ANSWER IS NEGATIVE.
Electricity and Magnetism
Electrical Systems Chapter 9.
Charging System Tests & Voltage information Checking the charging system with just a volt meter.
Understanding the Alternator
FIGURE 11-1 Electrical system parts.
R Ch 34 Electric Current pg 1
Addition 1’s to 20.
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