M&G Electricals

28/02/2024

SO YOU CAN COMMENT THE WAY YOU WANT

2OOOOP

Following Facebook Heart2Heart

28/09/2023

Akasingye nokeha

04/08/2022

18/08/2020

ᴛʜᴇ ᴇʟᴇᴄᴛʀɪᴄɪᴛʏ ᴏʙᴊᴇᴄᴛɪᴠᴇs

11/08/2020

Some of our projects

06/08/2020

23/06/2020

Advantages and disadvantages of conduit wiring

Advantages:

PVC conduits offers a highly resistant against corrosion.

It is a durable and very popular system.

It is a waterproof wiring system.

No risk of electric shock.

Alternations are possible.

Maintenance is easy.

It has a long life.

Disadvantages:

It is difficult to install. More time is needed.

Fault finding process is very difficult.

In case of steel conduit, it is a more expensive system compared to other wiring system

28/05/2020

Electrical device names with symbols

16/05/2020

*🎯 What Is Corona Effect 🎯*

*1) What is the Corona Effect*
*2) How to Corona is occur*
*3) Why transmission lines making buzzing Sound.*
*4) Factor affecting on Corona effect*
*5) Advantages and disadvantages of corona effect*
*6) How To Reduce Corona Effect*

" A corona discharge is an electrical discharge brought on by the ionization of a fluid such as air surrounding a conductor that is electrically charged ". Spontaneous corona discharges occur naturally in high-voltage systems unless care is taken to limit the electric field strength.
*📌A corona will occur when the strength of the electric field (potential gradient) around a conductor is high enough to form a conductive region*, but not high enough to cause electrical breakdown or arcing to nearby objects. It is often seen as a bluish glow in the air adjacent to pointed metal conductors carrying high voltages, and emits light by the same property as a gas discharge lamp.

*📌In many high voltage applications, corona is an unwanted side effect.* Corona discharge from high voltage electric power transmission lines constitutes an economically significant waste of energy for utilities. In high voltage equipment like Cathode Ray Tube televisions, radio transmitters, X-ray machines, and particle accelerators the current leakage caused by coronas can constitute an unwanted load on the circuit.

📌In the air, coronas generate gases such as ozone (O3) and nitric oxide (NO), and in turn, nitrogen dioxide (NO2), and thus nitric acid (HNO3) if water vapo is present. These gases are corrosive and can degrade and embrittle nearby materials, and are also toxic to humans and the environment.

📌Corona discharges can often be suppressed by improved insulation, corona rings, and making high voltage electrodes in smooth rounded shapes. However, controlled corona discharges are used in a variety of processes such as air filtration, photocopiers, and ozone generators.