Logo

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?

13.06.2025 03:45

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).

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

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

Why do good-looking men date homely women?

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

(Dc diagram shown, AC is similar).

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

Why is the band Nickelback unliked so much?

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

He then describes the function of a fuse.

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

What are some alternatives to wearing a bra? Why do some women feel pressure to wear bras even though there may not be any benefits?

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

In schematic diagrams this is the symbol for a fuse:

The other is “what does a “fuse” do?”

I have BPD. Why do I destroy everyone I love?

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

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

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

My Wife Was With a New Man. The Moment I Saw His “Package” Still Haunts Me. - Slate Magazine

He then describes Rainy Season and Lightning.

But it can get overloaded, and no longer works.

What does a fuse do?

Have you ever regretted not hitting on a older women?

One

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

This one hit behind the barn.

How has your life changed for the past 10 years? Can you share your #10year challenge? Is your life better, worse, or still hopeful?

nine

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.

What is your first experience having sex with older men?

2024–10–14 [Omar Gharbi Omar Gharbi ]

a photo is worth a thousand words.

“ 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”

Why do you allow your cat to lie in bed with you?

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

Edit 2024–10.

Can you share something that captivates you, whether it's an idea, a discovery, or an invention?

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

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

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

What is your twin flame story?

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.

[image of Common-mode choke]

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

There are three different concepts here that are getting confused.

What is lightning?

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

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

I post the exact comment here.

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

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

Here is a simplified AC power diagram.

First Sentence:

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

A circuit breaker is similar, but is resettable.

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

2024–10–16 [ OO OLAOYE OYEBODE ]

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

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

Upvotes:

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

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

This device then solves the entire problem.

At least they know the answer if they wanted it.

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

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

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

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

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.

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

eight

what exactly is a ‘surge’ protector?

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

There are two important concepts here.

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

2024–10–10[John johnson John Johnson ]

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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?

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.

so, what happens?

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

Barnstars:

[old diagram got deleted by accident]

This is 'the assistant's answer'

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

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

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.

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

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

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.

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

He then asserts :