Electrical Circuits and Safety: Essential Concepts
Electrical Circuits: Essential Concepts and Safety
Short Circuit
A short circuit is the union of two wires or parts of an electrical circuit with a potential difference or voltage to each other, without any electrical impedance between them.
Cutouts
Cutouts are no more than a section of wire thinner than normal conductors, placed at the entrance of the circuit for protection. When the current increases due to a short circuit, this part heats up and, therefore, is the first to melt.
Differential
A differential
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Equivalent Circuit
To perform the electrical calculations of a circuit with several resistors, we calculate the value of a single resistor, equivalent to the association of the resistors in the circuit. The circuit formed with the equivalent resistors is called an equivalent circuit. We can obtain three things from this circuit:
- The currents flowing through the circuit
- The potential drops across the components
- The dissipated power and the delivered power
Series Circuit
In a series circuit (Figure 1),
Read MoreUnderstanding Machinery: Schematics, Diagrams, and Maintenance
Rules for the Implementation of Sketches
Sketches must be in the format that is especially designed for this purpose and must include all the information requested in the heading.
- Sketches should initially be made in pencil to easily remove, change, and correct any errors.
- The presentation will be unilinear, in one view.
- It should not be made to scale, but keep a certain proportion of its parts.
- It is not essential to use rulers, although sometimes they may also be used, as well as templates, to standardize
Understanding Basic Electrical Concepts and Circuits
The Atom
The atom is the basic unit of matter. It consists of a nucleus containing protons and neutrons, around which electrons revolve. Electrons carry a negative charge, while protons carry a positive charge. Neutrons and other particles have their own charges.
Electric Charge
Electric charge is a fundamental property of matter responsible for electrical phenomena. The continuous displacement of electrons is called electric current.
Conductive and Insulating Materials
Conductive materials allow the
Read MoreUnderstanding Automotive Electrical Systems: Key Concepts and Components
Vi: Instantaneous Tension
Vi represents the tension at a specific instant in time over a given angle.
Vp: Maximum Coil Tension
Vp is the maximum tension generated by the coil.
Counter-Electromotive Force
When the engine is spinning, it acts as a power generator, producing a counter-electromotive force that opposes the applied voltage.
Vblokeo: Starter Block Voltage
Vblokeo is the voltage measured at the battery terminals when the starter is blocked.
F: Frequency
F is the number of cycles performed in one
Read MoreMechanical Principles: Forces, Energy, and Simple Machines
Key Mechanical Principles
Force (F) is any action that modifies the state of rest or motion of a body. It is measured in Newtons (N). A moment of a force (M) is the product of the value of the force by the distance between that point and the point of application of the force. Its unit of measurement in the SI is the Newton-meter (Nm). Work (W) done by a force is the product of the force produced by the displacement. In the SI, work is measured in Joules (J). Power (P) is the work done per unit of
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