|
Alternator System Operation |
|
|
Normal OperationThe field winding uses DC voltage to create a magnetic field. The magnetic field is used to magnetize the rotor. The stator is a stationary component that surrounds the rotor. When the rotor rotates voltage is produced. The stator will then send the voltage to the rectifier. The rectifier changes the AC voltage into DC voltage. Part of the DC voltage returns to the field winding in order to maintain the magnetic field. The remainder of the DC voltage is supplied to the battery. Electrical components on the machine will then receive the voltage from the battery. The regulator limits the DC voltage at the battery terminals to 28 ± 1 volts by controlling the current in the field winding. |
|
Read more...
|
|
|
An analogy for Ohm's Law |
|
|
Ohm's Law also makes intuitive sense if you apply it to the water-and-pipe analogy. If we have a water pump that exerts pressure (voltage) to push water around a "circuit" (current) through a restriction (resistance), we can model how the three variables interrelate. If the resistance to water flow stays the same and the pump pressure increases, the flow rate must also increase. 
|
|
Read more...
|
|
|
Electric circuits |
|
|
You might have been wondering how electrons can continuously flow in a uniform direction through wires without the benefit of these hypothetical electron Sources and Destinations. In order for the Source-and-Destination scheme to work, both would have to have an infinite capacity for electrons in order to sustain a continuous flow! Using the marble-and-tube analogy, the marble source and marble destination buckets would have to be infinitely large to contain enough marble capacity for a "flow" of marbles to be sustained. |
|
Read more...
|
|
|
CAT VIMS |
|
|
The Vital Information Management System (VIMS) is a state-of-the-art onboard system with the following features: - Machine systems are monitored for the operator.
- Payload productivity information is measured by the system and stored in onboard memory.
|
|
Read more...
|
|
|
Conductivity |
|
|
As mentioned on previous article, protons and neutrons are tightly bound but electrons have tendency to leave. The electrons of different types of atoms have different degrees of freedom to move around. With some types of materials, such as metals, the outermost electrons in the atoms are loosely bound. Because of it electrons are free to leave their respective atoms and float around in the space between adjacent atoms; they are often called free electrons
|
|
Read more...
|
|
|
|
