WAZIPOINT Engineering Science & Technology: September 2019

Sunday, September 29, 2019

How Does Air Blast Circuit Breaker Work?

Air Blast Circuit Breaker


What is Circuit Breaker?

We have to be very careful when doing any electrical work so that there is no damage. Similarly, any electrical equipment is considered before its use and its safety. That's why a circuit breaker is used on that device. So if there is any type of fault in the device. So that circuit breaker should shut down its supply and prevent us from damaging it.

The circuit breaker is the only switch that provides protection. Which, when there is a malfunction in the circuit, separates the circuit from the supply. When the switch is turned on or off. The more current at its contact points causes more sparkling. Which can melt contact points and cause an accident with the person operating the switch. The switch used at high voltage is specially made. The sparking that occurs when switching on or off is automatically quenched. This type of special switch is called circuit breaker.

Circuit breakers 5A, designed to work from 230V to several thousand amperes, 440V Circuit breakers are mainly of three types.

1. Air Circuit Breaker, ACB
2. Oil Circuit Breaker, OCB
3. Air Blast Circuit Breaker, ABCB

Air Circuit Breaker (ACB)

This type of circuit breaker is used for low voltage. This circuit breaker is used for double pole and triple pole. These circuit breakers are operated manually, whose terminals move in air, hence these are called air circuit breakers. In the series of poles an overload release coil is attached. This coil is set at a fixed temperature if overload or short, If the current value exceeds the value set in Kabyle, it closes the quill circuit breaker automatically, thereby protecting the circuit.

Oil Circuit Breaker (OCB)

This type of circuit breaker is used to close or turn lines up to high voltage. It is also operated manually. The contact points of these circuit breakers are submerged in oil, so the mobile circuit breaker is used for some reason. Is generated and the circuit breaker is sparking, so that the oil evaporates and bubbles are generated and when the circuit When the tipu rejoins, the bubbles are eliminated from the spotting generated

1. Oil acts as insulating between contact points
2. Oil eliminates sparking
3. Oil provides cooling by sparking the energy by which the contact points become cold

Loss of oil circuit breaker
1. Oil starts to catch fire when overheating
2. Oil is heated when vapors are produced which combine with the air to form an explosion mixture
3. The oil has to be kept clean and its levels have to be checked repeatedly

Air Blast Circuit Breaker
Air blast circuit breaker is used to work at a voltage above 11KV because the oil circuit breaker at a voltage above 11KV is afraid of exploding or catching fire due to the evaporation of oil. In large circuits, an air blast circuit breaker is used in which the pressure of air is prevented from forming sparking. Grams per centimeter is used separately to create air pressure in the circuit breaker. When the circuit breaker turns the circuit on or off, it produces the sound of explosion, hence it is called air blast circuit breaker. There are mainly three types of circuit breakers.
The air blast circuit breaker used compressed air or gas as a means of disrupting the arc. In aerial explosion, the circuit breaker compressed air is stored in a tank and released through a nozzle to produce a high-velocity jet; It is used to extinguish the arch. Air blast circuit breaker is used for indoor services in medium to high voltage field and medium breakage capacity. Typically up to a voltage of 15 kV and a breakdown capacity of 2500 mVA. The air blast circuit breaker is now employed in high voltage circuits in the outdoor switch yard for 220 kV lines.

Although gases such as carbon dioxide, nitrogen, freon or hydrogen are used as arc interrupting medium, compressed air gas is the accepted circuit breaking medium for blast circuit breakers. The reasons are below.

The ability to break the circuit of nitrogen is similar to that of compressed air and therefore there is no use to it. The carbon dioxide valve and other restricted routes have the drawback of being difficult to control and freeze. Ferran has high dielectric strength and good arc extinguishing properties, but it is expensive, and it decomposes into acid forming element by acid. There are desirable features found in air blast circuit breakers

High-speed operation - On large interconnected networks this is very important so that system stability is maintained. This is achieved in the circuit breaker because the time interval between the discharge trigger impulse and the contact isolation is very short.

Repeated operation for suitability - Repeated switching by air blast circuit is possible only due to absence of oil, which carbonates with fast continuous operation and because of wear and tear on current-carrying contact surfaces. Is a trivial quantity. But it should be remembered that if frequent switching is estimated, maintenance of an adequate air supply is essential.

Negative Maintenance - The ability to switch to an air blast circuit breaker to deal with frequent switching also means that negligible maintenance is required.
Elimination of Fire Hazard - The absence of oil eliminates the risk of fire.

Size reduction - The development of dielectric strength in air blast circuit breakers is so rapid that the final gap required for arc extinction is very small. This reduces the size of the equipment.

The theory of arc extinction in the circuit breaker

Air Blast requires an additional compressed air system that supplies air to the air receiver. When air is needed to open, compressed air is accepted into the arc extinction chamber. This pushes contacts away. In doing so, the contacts are separated, and the air blast moves away from the ionized gas with it and assures an arc extinction.

The air blast extinguishes one or more chakras within the arc, and the arc chamber is filled with high-pressure air, which prevents restart. Air blast circuit breakers fall into the category of external extinguisher energy type. The energy supplied for arc quenching is obtained from high-pressure air, and it is free from being interrupted by the current.

Axial Blast Air Circuit Breaker
Radial Blast Air Circuit Breaker
3.Cross Blast Air Circuit Breaker

Advantages of Air Blast Circuit Breaker
1. There is no fear of fire due to sparking in them
2.The contact point in them works quickly due to air pressure
3. They do not require much care
4. Their method of operation is simple

Disadvantages of air blast circuit
1. They may have air leakage
2. Air-compressor requires separate care
3. They are sensitive.

In this post we have tried to give you the complete information about the type of circuit breaker, what is air circuit breaker vacuum circuit breaker circuit breaker in hindi oil circuit breaker miniature circuit breaker circuit breaker types vacuum circuit breaker in hindi if you have any questions. Or if you have suggestions, please comment below.

Saturday, September 28, 2019

How Make Money from Facebook in Easy Blogging

How Make Money from Facebook

Making Money from Facebook in Easy Blogging

People are making money from Facebook Pages; yes, you also can earn money from your Facebook pages. But, how? Just follow the following basic easy tips:


  1. Become an influencer
You can also earn money by becoming an influencer with your normal Facebook profile. If posts on your Facebook wall get decent likes and comments, becoming an influencer is a good way to earn money from Facebook.

Also if you have a fan following and you interact frequently with them through your personal profile, then you can make money by signing up through an influencer account on blogmint.com or fromote.com to start earning.

Q1: In which all influencer marketing campaigns have you participated on Blogmint?

Twitter

Facebook

Instagram

YouTube

Other

Q2: What is your primary category?

Fashion

Lifestyle

Q3: For the people who don’t know about you, Can you tell us a little about yourself and your blog?

A3: Yes, yet another beauty blogger. Just what the world needs :-| Duh-uh!

Q4: Every website has a story behind it. What was yours? What was the motivation behind starting this Blog?

A4: I taught that cow how to jump over the moon. So I decided to blog about it. But then, I made a nail art video instead and kept going from there. Still going with the flow. Nothing is ever planned in my life. YouTube has always been one of those things. (That cow is not very happy though)

After signing up, you will be required to fill out a form where you will enter your profile information and you can fix the price as an influencer. For example, you may charge 5,000 per Facebook post giving emphasis to a brand.


02. Earn money through Facebook apps

You can earn money by becoming a Facebook app developer. Or, you can develop a Facebook app independently. In your app, you can earn money by applying for banner ads or you can sell virtual goods of your own or from some gaming companies like  EA, Zynga, Popcap, etc.


03. Earn money by account selling

You can earn money by selling your old Facebook accounts. Earlier it had become a trend to make more than one account. But now marketers are buying those accounts for their promotional purpose as Facebook gives more weightage to an old account.

Similarly, you can sell your old Facebook group or page with a good fan base.

04. Earn money from a Facebook group

You can make a Facebook group. Try to make a group with more than 10k members and a good engagement in conversation around a niche. Keep the members engaged with relevant questions, blog posts, images, polls, etc.



Saturday, September 21, 2019

ECC – Earth Continuity Conductor

What Is ECC Cable or Earth Continuity Conductor?

ECC or Earth Continuity Conductor is the part of the earthing or grounding system which joins or bonds together all the metallic parts of an installation network: Conduit, ducts, boxes, metal casing of switches, switch-fuses, fuse distribution boards, regulating and controlling apparatus, exposed metal work of machines and any metal framework on which electrical apparatus in mounted.
ECC – Earth Continuity Conductor

Earth Continuity Conductor is a name utilized in IEC world. It is called grounding conductor in North America. As the name suggests, it keeps up the continuity of the earthing or grounding all through the electrical network. It could be an bare or uncovered conductor or single conductor or a conductor of a multi-conductor cable. By and large, the size of the grounding conductor is littler than the power conductor in a multi-conductor cable. It is same as the PE (protective conductor) of TN system as defined in standard code IEC 60364-1.

You may read: How Do Make Earthing or Grounding For Equipment?

ECC or Earth Continuity Conductor is a third conductor in line network or main distribution system  with line and neutral that, bonded to earth for providing connection for safety purposes to any metal component not enclosed in the electrical circuit. 

An earth or grounding conductor is a conductor set that provides a low impedance path. Earth conductor mainly conduct any unwanted leakage or fault current away from a conductive electrical appliance.

The earth continuity test, or the earth bond test, ought to guarantee that there is a decent association between the mains plug and any earthed metal parts. For protection, earthing cable are intended to counteract electric shock by permitting the passage of current under faulty conditions.

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