What is an electric fuse and its types
A fuse or fuse is a component that protects any device from excessive electricity. In other words, this fuse is a safety device that protects the electrical circuit from overload and short circuit. There will probably be many people among you who know that what is electric fuse? Often when the current goes out in our homes but it happens in the rest of the houses, then the reason for this is the melt of the fuse.
This happens because when there is excess voltage flow then this fuse melts so that it can stop the flow of current to the devices. These are deliberately made with a thin wire, to prevent heavy amount of current from reaching any device.
Fuse has a lot of work in an electrical circuit. It is often used according to a saftey device. It may be a small device but it can protect your property worth lakhs when the time comes.
That’s why today I thought why not tell you people what is a fuse wire, how it works and types of fuses, so that you can get the answer of the questions arising in your mind till the end of the article. So without delay let’s start and know what is fuse in Hindi.
What is Electric Fuse
Fuses are devices that act as protectors. You can call them a type of safety devices, which are used to protect home appliances to protect them from high voltage damage.
These home appliances may include televisions, refrigerators, computers, etc. These fuses are made of thin strip or strand of metal, and whenever a heavy amount of current or excessive current flows through the electrical circuit, this fuse melts and this causes the circuit to open and it shuts down the power supply. disconnects.
Seeing its function, many people also call it a circuit breaker or stabilizer, which helps to protect the devices from heavy voltages.
Many types, features, and designs of Electric Fuse are currently available in the market. Fuse strips aluminum, copper, zinc Etc. are made of metals and together they are always connected in series connection with the circuit, so that they can protect the running cables from overcurrent when the time comes.
Below you are given the names of such wires which are used to make fuses.
|serial number||Metal||Melting Point (in Fahrenheit)|
Who invented Electric Fuses and when?
The invention of fuses “Thomas Alva EdisonSun 1890 did in.
what is the function of fuse
Fuses are mainly used to protect home applications from short circuit and overload or high current.
If we do not use fuses in wiring, then electric faults can cause wires and electric appliances, even fire in the house. Apart from this, there is also a risk in the life of television, computers, radios and other home appliances.
When the fuse melts, then a sudden spark occurs due to which the electricity of the whole house goes out due to power cut, but it saves you from getting damaged by the appliances.
how fuse works
These fuses work heating effect of the current According to the principle of. It is made of thin strip or strand of metallic wire which is made of non-combustible material. It is installed at the ends of terminals. Fuse is always connected in series with the electrical circuit.
When excessive current or heat is generated in the circuit due to heavy current flow, then the fuse melts because the element used for the fuse has a low melting point and this opens the circuit.
Due to excessive flow of this current, the wire breaks and the flow of current stops. In such a situation, we have to replace the fuse and install a new fuse which has suitable ratings. This fuse is made of many elements like zinc, copper, silver & aluminum.
They work like a circuit breaker to break the circuit when there are some sudden changes in the circuit. It is not only a protector, but it can prevent human beings from the catastrophe of the great hold. Hope you have understood the working of Fuse.
How to choose the Fuse
Fuse Rating = (watts/volts) x 1.25
1. If you want to select a fuse, then you can choose time-delay fuses for inductive load and fast acting fuses for resistive load.
2. For this you have to first know about the power(watts) of the appliance – usually which you can get from the appliance manual.
3. Then you have to know the voltage rating. Remember that the voltage of the fuse should be higher than the circuit voltage so that it can protect the device.
4. Then calculate the Fuse Rating with the help of the above mentioned formula. After this select the next highest fuse rating which is higher than your calculated fuse rating. For example, if the calculated fuse rating is 5.895 amps, then you should choose a 6 amp fuse.
What are the Characteristics of Fuses
Let us try to know about the characteristics of Electric Fuses:-
1. Current Rating: A Fuse which is being conducted continuously, how much maximum amount of current it can hold without melting is called current ratings. It is also called current carrying capacity, which is measured in Amperes. You can also call it thermal characteristics.
Current(Cin) = 75%Current (rating)
2. Voltage Rating: In this characteristic, the voltage which is connected with the fuse in series does not increase the voltage rating of the circuit. ie, V(fuse) >V(open ckt)
3. I2t Rating: This is called the amount of energy that is taken with the fuse element when there is an electrical fault or short circuit in the circuit. With this, the heat energy (due to energy being current flow) of the fuse can be measured and it is generated when the fuse melts.
4. Interrupting या Breaking Capacity: This is called the maximum rating of that current which is interrupted by Fuse without doing any harm. It is also called breaking or interrupting capacity of fuse.
Breaking capacity > Maximum rated voltage
Breaking capacity < Short ckt current
5. Voltage Drop: When excessive current flows through the circuit, the fuse element melts causing the circuit to open. Due to the effect of this resistance change, the voltage drop itself is reduced.
6. Temperature: It has a high operating temperature, due to which the current rating is low, as a result of which the fuse melts.
Types of Fuse
Although there are many types of Fuses, but in that too they are mainly divided into two parts. The first is AC Fuses and the second is DC Fuses. Along with this, they are also divided into different categories, about which we will know further.
Fuses to invent for the first time “Thomas Alva EdisonBut now there are many different types of fuses available in the market. But its main are of two types:-
1. DC Fuses: The size of DC fuses is large. Due to the constant value of the DC supply which is above 0V, it is not easy to neglect them and it is also difficult to turn off this circuit, while there is always the possibility that an electric arc may form in the melted wires. in between. To overcome this problem, the electrodes were placed at larger distances and due to which the size of DC fuses also increased significantly.
2. AC Fuses: The size of AC fuses is very less. At the same time, they oscillate 50-60 times every second from minimum to maximum. Therefore, the situation of arc formation between Melted Wires does not arise. That’s why they are packed in small size.
What are the Applications of Electric Fuse
As we must have understood by now how important these fuses are for any electrical or electronics system and circuits. Let us know about some of their applications: –
1. They are used in home distribution boards, general electrical appliances, and devices.
2. They are used in gaming consoles and in all automobiles such as cars, trucks and other vehicles.
3. Apart from this, laptops, cell phones, printers, scanners, portable electronics, Used in hard disk drives etc.
4. While in the electrical distribution system also, you can see the use of fuses in capacitors, transformers, power converters, motor starters, power transformers etc.
5. Where they Used in LCD monitors, battery packs, too.
What metal is the fuse made of?
Fuse is made of metal with low melting point, they are mainly made of copper, silver, aluminum.
What is Fuse Base?
Fuse Base is a part in which the phase wire of supply and phase wire of load is connected and it is tightened on any wooden, bakelite, pvc or any other dielectric cover.
How To Tighten Fuse Carrier?
In the fuse carrier, neither too loose nor too tight is always tightened.
What did you learn today?
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