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?

eight

2024–10–14 [Omar Gharbi Omar Gharbi ]

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.

Newspaper headlines: 'A generation let down' and 'Israel claims control' - BBC

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

The other is “what does a “fuse” do?”

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

What 10 things have you stopped doing in your life?

In schematic diagrams this is the symbol for a fuse:

He then describes Rainy Season and Lightning.

At least they know the answer if they wanted it.

Why is it rare for someone to despise both the Democrats and Republicans?

so, what happens?

Barnstars:

[image of Common-mode choke]

Trump and Washington Are Making Tons of Noise. Why the Stock Market Will Be Just Fine. - Barron's

This one hit behind the barn.

“ 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”

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

Tattle Life: Celebs say gossip forum ruined their lives. Now its owner has been unmasked - BBC

a photo is worth a thousand words.

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

nine

Microsoft’s New Windows 11 Start Menu Is Finally Worth Exploring

First Sentence:

He then describes the function of a fuse.

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

Samsung is struggling to sell the Galaxy S25 Edge - SamMobile

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

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

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

Common Childhood Virus Linked to Alzheimer’s Development in Old Age - Yahoo

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.

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

Aaron Rodgers Brings Different Energy Than Russell Wilson, Pryor Says: 'Maybe That's What The Steelers Need' - Steelers Depot

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

There are two important concepts here.

He then asserts :

Why do Brits drive a lot more dangerously compared to Americans? Is there just no courtesy when driving in the UK?

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

2024–10–10[John johnson John Johnson ]

Here is a simplified AC power diagram.

New Hope on Autoimmune Diseases: Sunlight - Newser

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

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 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 cute picnic ideas for a romantic date?

One

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%).

Sydney Sweeney visits Central NY, leads Boxing Hall of Fame parade (photos, video) - Syracuse.com

[old diagram got deleted by accident]

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

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

I post the exact comment here.

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

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

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

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

What does a fuse do?

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

what exactly is a ‘surge’ protector?

This device then solves the entire problem.

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

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

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

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

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

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

2024–10–16 [ OO OLAOYE OYEBODE ]

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

This is 'the assistant's answer'

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

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

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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

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

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

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.

There are three different concepts here that are getting confused.

Edit 2024–10.

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

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

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.

Upvotes:

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.

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

What is lightning?

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

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.

(Dc diagram shown, AC is similar).

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

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?

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 circuit breaker is similar, but is resettable.

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

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