Impact of Information and Communication Technologies
The Impact of Information and Communication Technologies
The company is transforming itself into what has been called the Information and Knowledge Society, which is characterized by the presence of technologies in everyday life, such as:
- Computers
- PDA phones
- GPS
- And others
Information Technologies: Definition
Information and Communication Technologies (ICT) include those that electronically store, create, retrieve, and transmit information in large quantities at high speed. They include the joint use
Read MoreProgrammable Logic Controllers (PLCs): Structure and Function
The term PLC, widely available in the middle, means Programmable Logic Controller. It was originally called PCs (Programmable Controllers), but with the arrival of the IBM PC, to avoid confusion, we used the acronym PLC definitively. In Europe, the same concept is called PLC. The more appropriate definition is: Industrial System Automatic Control working under a sequence stored in memory, logic instructions. It is a system because it contains everything needed to operate, and industrial by having
Read MoreSticky Bomb Detection and Safety Measures for Vehicles
Difficulties Generated by the Natural Selectivity of the Stimulus
The following factors can cause difficulties in accurately perceiving sensory stimuli:
- Localization of the observer in space and time: This can cause partial restrictions on the perception of sensory stimuli.
- Imprecisions due to fatigue.
- Selectivity of attention: When multiple stimuli occur simultaneously, only a few may capture the observer’s attention, resulting in a selection guided by the observer’s sensitivity.
- Halo effect: When a
Alternating and Direct Current: Motors and Alternators
Production of Alternating Current in a Rotating Coil
The production of alternating current occurs in a coil that rotates within a magnetic field. Each terminal of the coil is connected to a metal ring conductor, where two brushes collect the induced current supplied to the circuit and determine how it is applied externally. For the induced current, the right-hand rule of three fingers is applied.
Rectifying Current Through the Commutator Bars
We get DC current in the generator output. Converting AC
Read MoreElectrical Switchgear and Protection Equipment in Transformer Centers
Transformer Center Switchgear and Elements
1. CT Switchgear and Elements
It’s called electrical facing any equipment or apparatus for controlling the electrical system at will. The cladding, which has indoor or outdoor CT, has the following functions:
- Maneuvers of the circuit.
- Transformation of energy.
- Protection of persons and goods.
To achieve these goals, the enclosure where the switchgear is placed requires additional facilities such as:
- Ground Installation
- Fire Installation
- Ventilation
- Lighting Installation
Thermodynamics: First and Second Laws in Action
First Law: Open Systems
In open systems, there is both mass flow and energy transfer.
Mass Flow
The amount of mass flowing through a system per unit of area, volume, and time. If an open system has conservation of mass, and if the fluid is incompressible, it means that the density at the input is equal to the density at the output.
Work Flow
The work done by the fluid to move through the system. Due to the conservation of energy, the energy input must be equal to the energy output.
Enthalpy
A thermodynamic
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