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?

Last Updated: 02.07.2025 07:02

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?

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

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

He then describes Rainy Season and Lightning.

‘She never sleeps’: This platform wants to be OnlyFans for the AI era - CNN

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

What is lightning?

Why do I sweat so much after shower?

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

One is “what exactly is in 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.

Which race of women are the hottest?

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

The other is “what does a “fuse” do?”

nine

Why do people with trauma easily recognize other people with trauma through eye contact?

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

This is 'the assistant's answer'

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.

I am noticing that some people are saying if Trump stayed in office that there wouldn't be any wars such as Ukraine and Russia, but when Biden came in office war started. What are your thoughts?

(Dc diagram shown, AC is similar).

But it can get overloaded, and no longer works.

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

Salary you need to live comfortably in Virginia in 2025, according to new study - 13newsnow.com

[image of Common-mode choke]

There are three different concepts here that are getting confused.

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.

Scientists Stumble Upon Mysterious Lifeform They Can’t Yet Explain - The Daily Galaxy

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

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

I post the exact comment here.

Has your mother ever walked in on you at an inappropriate time?

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

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

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

Co-Op Climbing Game Peak Takes Steam by Storm, Reaches Summit of Top Sellers Chart - IGN

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

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.

Barnstars:

Why do we often have strong feelings for our twin flames, even if they don't feel the same way? Is there a way to make them realize their true feelings for us?

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

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

eight

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

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

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

Edit 2024–10.

This one hit behind the barn.

so, what happens?

What does a fuse do?

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

[old diagram got deleted by accident]

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

Upvotes:

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.

what exactly is a ‘surge’ protector?

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

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.

A circuit breaker is similar, but is resettable.

He then asserts :

2024–10–16 [ OO OLAOYE OYEBODE ]

He then describes the function of a fuse.

This device then solves the entire problem.

At least they know the answer if they wanted it.

a photo is worth a thousand words.

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

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

2024–10–10[John johnson John Johnson ]

There are two important concepts here.

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.

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

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

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

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

One

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.

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

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

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

First Sentence:

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

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

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

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

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

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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.

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

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

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

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

In schematic diagrams this is the symbol for a fuse:

“ 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”

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