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?

What is lightning?

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?

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

What have you learned from your parents' mistakes?

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

He then asserts :

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

Why do so many autistic adults deal with self-hatred?

Here is a simplified AC power diagram.

Edit 2024–10.

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

I want to have anal sex, but my wife refuses. What do I do?

He then describes the function of a fuse.

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

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

How much should one budget to travel for 1 month generally?

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

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

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

Why are fewer English people going to their local pubs for a drink? Are they aware that many pubs are shutting down due to lack of customers?

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

At least they know the answer if they wanted it.

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.

Why do very skinny girls get more male attention if it is true that men like curves?

what exactly is a ‘surge’ protector?

“ 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”

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

What are the pros and cons of a prospective bride/groom not having any siblings?

This device then solves the entire problem.

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

2024–10–10[John johnson John Johnson ]

Why is Eric Clapton so roundly disliked among guitarists?

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

There are three different concepts here that are getting confused.

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

Why are Indians so influenced by the Western culture, when the Indian tradition has so much to give?

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 bolt then partially travels down the line to your home.

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

Is anyone else losing complete respect for the US at this point?

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.

so, what happens?

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

Where do high school kids get weed from?

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

a photo is worth a thousand words.

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

What are your thoughts on a Russian poetry prize banning entries from transgender people? Why is Russia so transphobic?

2024–10–14 [Omar Gharbi Omar Gharbi ]

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

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.

Xbox sale round-up June 17, 2025 - TrueAchievements

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

One

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

nine

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

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

The other is “what does a “fuse” do?”

Barnstars:

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

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

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

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

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

There are two important concepts here.

2024–10–16 [ OO OLAOYE OYEBODE ]

[image of Common-mode choke]

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.

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

(Dc diagram shown, AC is similar).

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.

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

eight

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.

I post the exact comment here.

This one hit behind the barn.

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

He then describes Rainy Season and Lightning.

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

In schematic diagrams this is the symbol for a fuse:

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

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

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

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

This is 'the assistant's answer'

But it can get overloaded, and no longer works.

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

[old diagram got deleted by accident]

What does a fuse do?

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

Upvotes:

A circuit breaker is similar, but is resettable.

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

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

First Sentence:

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

2024–10–11 [Victor Olarewsju Victor Olarewaju ]