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.

what exactly is a ‘surge’ protector?

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

How would you respond to Rep. Nancy Mace's claim that the GOP platform is more in line with what the American people want compared to the left?

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

One

(Dc diagram shown, AC is similar).

What makes Nigerian scammers skilled at impersonating people? Is their success a result of intelligence or other factors?

2024–10–10[John johnson John Johnson ]

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

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

How did the use of cows change in Indian culture over time? Is the value of cattle still important in modern times?

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

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

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

What is the worst name in Tolkien’s legendarium (meaning and look)?

There are three different concepts here that are getting confused.

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

Here is a simplified AC power diagram.

Why did McLaren hope that the Ferrari pair would pit twice during the Italian Grand Prix?

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

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

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

What were Hitler’s habits?

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

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?

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

Can a Trump supporter explain what was wrong with what Bishop Budde said to Donald Trump?

At least they know the answer if they wanted it.

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

Barnstars:

Can cheating be a result of not truly loving or caring for someone, or is it sometimes just a spur of the moment decision?

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

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

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

Why won't biden give a last minute deferred action TO ALL undocumented immigrants so Trump can't deport them? Obama issued DACA, why can't Biden issue something similar that protects ALL undocumented immigrants from deportation?

He then describes the function of a fuse.

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

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.

What was Easter day like for you as a child?

But it can get overloaded, and no longer works.

2024–10–16 [ OO OLAOYE OYEBODE ]

so, what happens?

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

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

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

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

In schematic diagrams this is the symbol for a fuse:

Upvotes:

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

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.

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

This is 'the assistant's answer'

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

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

eight

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

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

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

What is lightning?

What does a fuse do?

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

A circuit breaker is similar, but is resettable.

I post the exact comment here.

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

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

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.

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.

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

He then describes Rainy Season and Lightning.

He then asserts :

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.

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

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

[image of Common-mode choke]

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

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.

2024–10–14 [Omar Gharbi Omar Gharbi ]

The other is “what does a “fuse” do?”

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

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.

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

First Sentence:

[old diagram got deleted by accident]

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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

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

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

a photo is worth a thousand words.

This device then solves the entire problem.

This one hit behind the barn.

There are two important concepts here.

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”