What exactly is the difference between a surge protector and a fuse? Can a fuse protect the electronic devices from lightning instead of surge protector?

For this case there are devices called Metal oxide varistors (MOV).

At one ohm, the resistor has a maximum of 1 watt power.

This is an electronic circuit designed to clamp voltages so that the Voltage Potential that appears at the outlet is never going to exceed the nominal value.

Why do I smell bad even though I have good hygiene?

a photo is worth a thousand words.

He then describes the function of a fuse.

P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.

Treasury Secretary Busts ‘Alarmist’ Inflation Predictions - The Daily Wire

The third is lightning and “how it gets conducted into a home.”

First Sentence:

the problem then depends on "how fast does the fuse operate?".

My ex moved on so fast. How can I overcome the pain?

The other is “what does a “fuse” do?”

This is the picture of an electronic coil of wire wound around a core of magnetic material.

eight

Microsoft Confirms Password Deletion—Now Just 8 Weeks Away - Forbes

What does a fuse do?

This is 'the assistant's answer'

2024–09–27 [ Mohan Rajaratnam Mohan Rajaratnam ] . Thinks you can get free electricity from nothing : Mohan Rajaratnam's answer to Is it possible to generate free electricity at home using a magnet or other low-cost methods? If so, how does it work?

Can trans people tell me what the criteria for a woman is excluding self identification (facts do not rely on self belief)?

This one hit behind the barn.

It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.

Here is a simplified AC power diagram.

What is the sum of X+XX+XXX+XXXX?

This is where this question deviates from being a 'generic' question, and becomes more specific.

In schematic diagrams this is the symbol for a fuse:

Upvotes:

How was your JEE Mains 2024 April attempt?

This is a photo where a lightning bolt took out a home's complete mains distribution box, and a lot of electronic gear as well.

A fuse is a non-resetable over current circuit protector.

He then asserts :

You hold the door open for a lady and she stops in her tracks and screams at you, ‘Don’t hold the door for me! I’ll get it myself!’ What are your feelings or immediate reaction?

but this device (an Inductor) … impedes the rapid changes in the current.

“ A surge suppressor is the one which is connected at the input supply so that when there is a sudden change voltage it bypasses thereby protecting the (circuit) and electronic components”

I post the exact comment here.

Vinicius Jr. and Brazil Draw Blank in Ancelotti’s Debut - Managing Madrid

[image of Common-mode choke]

Because the load is inductive, the current lags the voltage.(by a bit).

It also is a device that limits the change in current flow.

10 quotes about science’s value to society - Big Think

So, the voltage could go up to 500 volts, and the fuse will not open up.

These devices are installed between the “hot” and “neutral” and protective ground.

Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.

Live From: 125th U.S. Open Championship Final Qualifying - Metropolitan Golf Association

Once the voltage goes over 0.0650 volts, then this fact can be used to amplify the difference, and turn the circuit breaker off , furthur down the line. Essentially that is what a RCD/GFCI does, it compares the incoming current, to the outgoing current, and if the difference between the two currents is over 5mA, then it trips the circuit breaker.

At the secondary, it is 1000 times less.)turns ratio). If it gets hit with a 100,000 volt bolt of lightning then the voltage arrestors conduct and clamp the voltage down to line voltage, ( but a small amount leaks down the line). This is the problem.

Barnstars:

[old diagram got deleted by accident]

But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).

What is lightning?

but I think this circuit , shows a few more pieces.

But it can get overloaded, and no longer works.

This device then solves the entire problem.

A circuit breaker is similar, but is resettable.

So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.

If the nominal power is 4,000 watts then the current at 230volts is 16 amps.

nine

2024–10–11 [Bobby Sanchez Bobby Sanchez ].

2024–10–10[John johnson John Johnson ]

Now when you have a certain ac resistance, then a current flows in a loop.

One is “what exactly is in a ‘surge protector’ ? ”

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).

“ A fuse is a device which protects the (circuit) against overload and short circuit.”

An AC voltage/ current source, and an ac inductive load.

what exactly is a ‘surge’ protector?

And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.

2024–10–16 [ OO OLAOYE OYEBODE ]

There is no harm in having the surge suppressor along with the fuse in the circuit. The fuse will not open up until the current melts the link. This will take time, and in the interim, that jolt will get transmitted into the power supplies.

The MOV will conduct when the voltage exceeds 50% of line voltage.

so, what happens?

There are three different concepts here that are getting confused.

At least they know the answer if they wanted it.

2024–10–14 [Omar Gharbi Omar Gharbi ]

“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”

It seems Mohan does not understand the difference between a comment and an Answer.

He then describes Rainy Season and Lightning.

There are two important concepts here.

Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.

So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.

When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.

Lightning arrestor is a spark-gap device, and can be installed anywhere. What is important, is that the wire is thick enough to withstand the lightning bolt and conduct the energy away from the building.

(Dc diagram shown, AC is similar).

Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".

OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.

Can the fuse protect the electronic devices from lightning instead of a surge protector.

Edit 2024–10.

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.

This is a high voltage low current spike that comes down the line because of the power poles being struck, and the voltage suppressors activating on the primary side of the transformer.

One

so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.

But… the neutral is now “floating” because of the 1 ohm resistance.

These are simplified answers to the original question, and does not change anything I wrote above.

The bolt then partially travels down the line to your home.

This is where the MOV conducts again, and dissipated the energy.