The charging system consists of a belt-driven alternator, battery, and voltage regulator. The alternator converts mechanical energy from the crankshaft into electrical current using a rotor and stator. The rotor's rotating magnetic field induces current in the stationary stator windings. Rectifiers convert this alternating current into direct current to charge the battery and power electrical components. The voltage regulator controls the rotor's magnetic field strength to maintain a constant output voltage.
In automobiles, charging system maintains the charge in the vehicle's battery, which provides the main source of electrical energy when engine is running. In an automobile, energy is supplied to the battery by charging system from where it is distributed to the other parts like ignition system, lighting system and other important systems. The two main essential parts of charging system are alternator and voltage regulator.
In automobiles, charging system maintains the charge in the vehicle's battery, which provides the main source of electrical energy when engine is running. In an automobile, energy is supplied to the battery by charging system from where it is distributed to the other parts like ignition system, lighting system and other important systems. The two main essential parts of charging system are alternator and voltage regulator.
A generating station in which diesel engine is used as the prime mover for the generation of electrical energy
is known as Diesel power station or Diesel power plant
The function of an Electronic ignition system is to produce the spark to ignite the air-fuel mixture in a timely manner for maintaining the effective combustion
generators, generator types, generator function, generator instillation, working principle of generator starter circuit, relationship between KW,KVA and KVAR auto voltage regulation (AVR), speed monitoring circuit.
A generating station in which diesel engine is used as the prime mover for the generation of electrical energy
is known as Diesel power station or Diesel power plant
The function of an Electronic ignition system is to produce the spark to ignite the air-fuel mixture in a timely manner for maintaining the effective combustion
generators, generator types, generator function, generator instillation, working principle of generator starter circuit, relationship between KW,KVA and KVAR auto voltage regulation (AVR), speed monitoring circuit.
THIS PPT IS FULL EXPLATION OF AC GENERATOR.IT CONTAINS ALL THE TOPICS UNDER WORKING ,CUNSTRUCTION,ADVANTAGES & DISADVANTAGES REGARDING AC GENERATOR.
IT IS HELPFULL FOR EVERY SCIENCE STUDENT.HOPE YOU ALL LIKE MY WORK.
alternators its types and its functions….What you've just experienced is an example of an alternator breathing its last breath.
Your first thought might have been the battery is dying. In a sense, you would be right because the battery and the alternator are related, but the battery tends to get all the press.
This presentation aims to explain the mechanics of alternators, how you can diagnose problems and what you can do if you have a bad alternator.
You will come to now to some background information about alternators and the war of the currents.
working principle of alternators and its kind _What you've just experienced is an example of an alternator breathing its last breath.
Your first thought might have been the battery is dying. In a sense, you would be right because the battery and the alternator are related, but the battery tends to get all the press.
This presentation aims to explain the mechanics of alternators, how you can diagnose problems and what you can do if you have a bad alternator.
You will come to now to some background information about alternators and the war of the currents.
Comprehensive program for Agricultural Finance, the Automotive Sector, and Empowerment . We will define the full scope and provide a detailed two-week plan for identifying strategic partners in each area within Limpopo, including target areas.:
1. Agricultural : Supporting Primary and Secondary Agriculture
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• Target Areas: Polokwane, Tzaneen, Thohoyandou, Makhado, and Giyani.
2. Automotive Sector: Partnerships with Mechanics and Panel Beater Shops
• Scope: Develop collaborations with automotive service providers to improve service quality and business operations.
• Target Areas: Polokwane, Lephalale, Mokopane, Phalaborwa, and Bela-Bela.
3. Empowerment : Focusing on Women Empowerment
• Scope: Provide business support support and training to women-owned businesses, promoting economic inclusion.
• Target Areas: Polokwane, Thohoyandou, Musina, Burgersfort, and Louis Trichardt.
We will also prioritize Industrial Economic Zone areas and their priorities.
Sign up on https://profilesmes.online/welcome/
To be eligible:
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3. Sectors : Agriculture ( primary and secondary) and Automative
Women and Youth are encouraged to apply even if you don't fall in those sectors.
5 Warning Signs Your BMW's Intelligent Battery Sensor Needs AttentionBertini's German Motors
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"Trans Failsafe Prog" on your BMW X5 indicates potential transmission issues requiring immediate action. This safety feature activates in response to abnormalities like low fluid levels, leaks, faulty sensors, electrical or mechanical failures, and overheating.
Ever been troubled by the blinking sign and didn’t know what to do?
Here’s a handy guide to dashboard symbols so that you’ll never be confused again!
Save them for later and save the trouble!
Things to remember while upgrading the brakes of your carjennifermiller8137
Upgrading the brakes of your car? Keep these things in mind before doing so. Additionally, start using an OBD 2 GPS tracker so that you never miss a vehicle maintenance appointment. On top of this, a car GPS tracker will also let you master good driving habits that will let you increase the operational life of your car’s brakes.
Fleet management these days is next to impossible without connected vehicle solutions. Why? Well, fleet trackers and accompanying connected vehicle management solutions tend to offer quite a few hard-to-ignore benefits to fleet managers and businesses alike. Let’s check them out!
𝘼𝙣𝙩𝙞𝙦𝙪𝙚 𝙋𝙡𝙖𝙨𝙩𝙞𝙘 𝙏𝙧𝙖𝙙𝙚𝙧𝙨 𝙞𝙨 𝙫𝙚𝙧𝙮 𝙛𝙖𝙢𝙤𝙪𝙨 𝙛𝙤𝙧 𝙢𝙖𝙣𝙪𝙛𝙖𝙘𝙩𝙪𝙧𝙞𝙣𝙜 𝙩𝙝𝙚𝙞𝙧 𝙥𝙧𝙤𝙙𝙪𝙘𝙩𝙨. 𝙒𝙚 𝙝𝙖𝙫𝙚 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙥𝙡𝙖𝙨𝙩𝙞𝙘 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙪𝙨𝙚𝙙 𝙞𝙣 𝙖𝙪𝙩𝙤𝙢𝙤𝙩𝙞𝙫𝙚 𝙖𝙣𝙙 𝙖𝙪𝙩𝙤 𝙥𝙖𝙧𝙩𝙨 𝙖𝙣𝙙 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙛𝙖𝙢𝙤𝙪𝙨 𝙘𝙤𝙢𝙥𝙖𝙣𝙞𝙚𝙨 𝙗𝙪𝙮 𝙩𝙝𝙚 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙛𝙧𝙤𝙢 𝙪𝙨.
Over the 10 years, we have gained a strong foothold in the market due to our range's high quality, competitive prices, and time-lined delivery schedules.
What Does the PARKTRONIC Inoperative, See Owner's Manual Message Mean for You...Autohaus Service and Sales
Learn what "PARKTRONIC Inoperative, See Owner's Manual" means for your Mercedes-Benz. This message indicates a malfunction in the parking assistance system, potentially due to sensor issues or electrical faults. Prompt attention is crucial to ensure safety and functionality. Follow steps outlined for diagnosis and repair in the owner's manual.
What Exactly Is The Common Rail Direct Injection System & How Does It WorkMotor Cars International
Learn about Common Rail Direct Injection (CRDi) - the revolutionary technology that has made diesel engines more efficient. Explore its workings, advantages like enhanced fuel efficiency and increased power output, along with drawbacks such as complexity and higher initial cost. Compare CRDi with traditional diesel engines and discover why it's the preferred choice for modern engines.
Symptoms like intermittent starting and key recognition errors signal potential problems with your Mercedes’ EIS. Use diagnostic steps like error code checks and spare key tests. Professional diagnosis and solutions like EIS replacement ensure safe driving. Consult a qualified technician for accurate diagnosis and repair.
Core technology of Hyundai Motor Group's EV platform 'E-GMP'Hyundai Motor Group
What’s the force behind Hyundai Motor Group's EV performance and quality?
Maximized driving performance and quick charging time through high-density battery pack and fast charging technology and applicable to various vehicle types!
Discover more about Hyundai Motor Group’s EV platform ‘E-GMP’!
Why Is Your BMW X3 Hood Not Responding To Release CommandsDart Auto
Experiencing difficulty opening your BMW X3's hood? This guide explores potential issues like mechanical obstruction, hood release mechanism failure, electrical problems, and emergency release malfunctions. Troubleshooting tips include basic checks, clearing obstructions, applying pressure, and using the emergency release.
3. Basic Charging System Components
Typical components are:
Alternator Drive Belt:
Drives alternator from
crankshaft.
The Battery: Supplies
voltage to alternator.
Charge Warning Lamp:
Displays charging system
information.
The Alternator: converts
mechanical power to
electricity.
4. Engine off, battery supplies
electricity to systems.
Engine running, charging
system supplies
electricity to systems.
The alternator is driven
from the crankshaft pulley.
Its output voltage varies
between 13 and 15 volts.
This is sufficient to charge the battery.
Charging System Operation
Load
13 - 15 volts
Battery
alternator
5. The Alternator (External Side View)
Typical alternator
construction:
Drive
pulley Output
terminal
B+
Regulator,
rectifier
and brush
cover
End frame
cover
Mounting
ear
Drive frame
cover
Circulation
vents
Cooling
fan
6. The rotor: Rotating
field winding.
The Alternator (Internal View)
Typical components are:
Voltage
regulator
Rectifier
assembly
Rotor
Stator
Drive
pulley
End
cover
Slip ring
end
housing
Retainer
nut
Casing retainer
bolts
The stator:
Stationary induction
winding.
Rectifier
assembly: Diode
rectifier bridge.
Voltage regulator:
Regulates output
voltage.
Cooling fans: Provide
air circulation.
Cooling fans
7. Field winding
Main
shaft
Slip
rings
Brushes
Iron, claw-
shaped, finger
pole pieces
Alternator Components - The Rotor
Typical rotor components:
The field winding is
wound over an iron
core.
The finger poles
surround the field
winding.
The brushes
transfer voltage
to the slip rings.
The rotor assembly is
supported at each end
by bearings.
The field winding
is attached to the
slip rings.
8. Rotor Magnetic Field
When voltage is applied to the field winding, a magnetic field is
created.
Magnetic field strength = current flow + closeness of finger poles.
It saturates the finger poles, creating north and south poles.
As the rotor turns, alternating north and south magnetic fields are created.
Stator
windings
Curved flux
lines
Voltage in
North and
south poles
9. Alternator Components - The Stator
The stator has 3 sets of evenly spaced windings.
They are held within a
frame of soft iron
laminations.
The windings connect to
a diode rectifier bridge.
Stator
Enamel copper
wire windings
Soft iron
lamination
3 outputs
Output voltage depends
upon rotor speed and its
magnetic field strength.
The windings are interlaced
to produce AC voltages that
are 120° apart.
10. +
-
0
Single Phase Voltage Induction
Maximum voltage = when winding
is cut by maximum flux.
Single winding (stator).
When magnetic field direction
changes, induced voltage polarity is
reversed.
When magnet rotates, it
induces voltage in the winding.
Occurs when magnet is at
90° to winding.
Magnet (rotor).
Winding
Magnetic
field
Rotor
11. 120°
0
180 360
The stator has 3 windings, that
are 120° apart.
The voltages produce a stable 3
phase output, ready for DC
conversion (rectification).
Three Phase Voltage Induction
As the magnet rotates, it induces
voltages in all 3 windings.
The windings are connected in either Star or Delta configurations.
Star Delta
12. Diodes allow current to flow in
only one direction.
Rectification
If 4 diodes are connected to
make a bridge, current can
flow during positive and
negative parts of the AC
voltage, producing a totally
positive (DC) output.
They conduct when a forward
voltage is applied to the anode.
In this case, the positive
part of an AC voltage.
Anode Cathode
+ -
Output
Diode
AC
voltage Battery
emf
+
-
Output
AC
voltage
D1
D4
D2
D3
Battery
emf
+
-
13. Converts 3 phase AC voltage
into DC voltage.
Alternator Components - The Rectifier Bridge
The bridge is constructed
using 6 diodes.
3 are used on the positive side of
the bridge and 3 are used on the
negative side.
The diodes are mounted on
a heat sink.
‘B’ terminal
Negative
diodes
Stator terminals
Positive
diodes
14. Rotor Field Excitation
The rotor requires voltage to produce a magnetic field.
Engine stopped, ignition
on, battery voltage is
applied to rotor, via
charge warning lamp.
Lamp is on and current
flows through rotor
winding.
Engine running,
alternator speed increases,
voltage output also
increases.
Alternator voltage > battery voltage = lamp out, battery being charged
= alternator current flowing through rotor, via field diodes.
15. Alternator Components - Voltage Regulator
Rotor field winding voltage must be
regulated to maintain alternator output
at specified voltage level.
The voltage regulator
senses alternator output
and changes field winding
current.
Output voltage < specified, regulator increases field winding current,
output voltage increases.
Output voltage > specified, regulator decreases field winding current,
output voltage decreases.
16. Typical Voltage Regulator Circuit
Regulation voltage is set by voltage drop across R1, ZD and T1.
Battery voltage < 14.2V, ZD does not conduct, T1 off, T2 on, rotor current = max.
Alternator voltage >= 14.2V, ZD conducts, T1 on, T2 off, rotor current = 0.
Rapid switching of transistors provides a stable output voltage.
18. Open-Circuit Check
Measure the resistance
between the slip rings with
the ohmmeter. the resistance between
3.5 – 4.5Ω
Grounded Circuit Check
Check for resistance between
the slip ring and the core. The
rotor is defective if the
resistance is not infinite (∞).
ALTERNATOR ROTOR INSPECTION
19. ALTERNATOR STATOR INSPECTION
Continuity Between Coil Leads
Check for continuity between
the stator coil leads. The
stator is defective if no
continuity
Continuity Between Stator
Coil Leads and Core
Check for continuity between
the stator coil leads and the
core. The stator is defective if
continuity exists.
