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?

I post the exact comment here.

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?

Here is a simplified AC power diagram.

Do you agree that last year The Beatles released a number one single decades after the death of John Lennon, thanks to AI?

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

This device then solves the entire problem.

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

How often do prisoners try to escape from jail/prison, and how many of them succeed?

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

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

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

What to Know About Tyler Perry’s $260 Million Lawsuit - Vulture

“ 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”

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

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.

What are some ways to help bring out natural curly/wavy hair?

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.

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.

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

Whole Foods tells staff cyberattack at its primary distributor UNFI will affect product availability - TechCrunch

But it can get overloaded, and no longer works.

In schematic diagrams this is the symbol for a fuse:

Upvotes:

Here’s what Ozempic and Wegovy are really doing to your mouth - The Independent

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

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

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.

If you're quitting a job or anticipating layoffs, don't burn your bridges at work. Boomerang hires are increasing. - Business Insider

He then describes the function of a fuse.

He then describes Rainy Season and Lightning.

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

Is Beauty of Joseon Sunscreen good for oily skin?

What is lightning?

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

A circuit breaker is similar, but is resettable.

All international travelers should get measles vaccinations, CDC says - AP News

The other is “what does a “fuse” do?”

Edit 2024–10.

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

A former police chief who escaped from an Arkansas prison is captured - NPR

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

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

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

Can an astrologer predict that someone is in a physical relationship before marriage?

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

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

At least they know the answer if they wanted it.

What do you think about Matt Gatz as an attorney general?

(Dc diagram shown, AC is similar).

What does a fuse do?

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

Why do some men love sucking cocks?

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

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

Barnstars:

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

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

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

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

[old diagram got deleted by accident]

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.

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.

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

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

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

2024–10–16 [ OO OLAOYE OYEBODE ]

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

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

First Sentence:

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

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

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

One

nine

a photo is worth a thousand words.

There are three different concepts here that are getting confused.

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

what exactly is a ‘surge’ protector?

2024–10–10[John johnson John Johnson ]

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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

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.

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

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

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.

[image of Common-mode choke]

so, what happens?

2024–10–14 [Omar Gharbi Omar Gharbi ]

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

This is 'the assistant's answer'

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.

He then asserts :

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

There are two important concepts here.

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

This one hit behind the barn.