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?

Edit 2024–10.

At least they know the answer if they wanted it.

what exactly is a ‘surge’ protector?

How do you start a tech startup as a non-technical person?

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

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

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

Space Force demos rapid turnaround on latest GPS III launch - Defense News

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

Upvotes:

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

Derek Jeter Shares Brutal Reality for Yankees After Dodgers Loss - Sports Illustrated

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

(Dc diagram shown, AC is similar).

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.

Why do people hate fat people so much, even people who aren't exactly supermodels themselves? It seems like such a deep, passionate hatred, like they're offended by fat people just existing. Fat people didn't do anything to them, so why hate them?

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

eight

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

If You Fit Into One Of These 6 Categories, You Should Be Taking Creatine - MindBodyGreen

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.

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

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

Why do some people admire Latin American cultures but not want to be from or live in those countries?

This one hit behind the barn.

I post the exact comment here.

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

Analysts revamp forecast for Nvidia-backed AI stock - TheStreet

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

This device then solves the entire problem.

2024–10–10[John johnson John Johnson ]

Your Ear Wax Might Hold Clues to Early Parkinson's, Study Finds - ScienceAlert

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

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

At least 45 Palestinians killed while waiting for aid trucks in Gaza, health officials say - AP News

First Sentence:

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

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

Almost all unmarried pregant women say that the fetus resembles the father, study finds - PsyPost

[old diagram got deleted by accident]

A circuit breaker is similar, but is resettable.

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.

He then describes Rainy Season and Lightning.

a photo is worth a thousand words.

nine

“ 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”

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.

Here is a simplified AC power diagram.

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.

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

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.

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

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

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

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

He then asserts :

2024–10–16 [ OO OLAOYE OYEBODE ]

What is lightning?

[image of Common-mode choke]

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

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

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

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?

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.

This is 'the assistant's answer'

But it can get overloaded, and no longer works.

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

There are three different concepts here that are getting confused.

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

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

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

What does a fuse do?

One

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

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

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

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

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

He then describes the function of a fuse.

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

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

so, what happens?

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

There are two important concepts here.

In schematic diagrams this is the symbol for a fuse:

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

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

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

The other is “what does a “fuse” do?”

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

Barnstars:

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