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?

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

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

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

What are the reasons behind Europeans preferring to visit third world countries over taking holidays in their own continent?

2024–10–10[John johnson John Johnson ]

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

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?

Was there any slavery of white people that actually compares to the transatlantic slave trade? I’m not baiting or anything actually genuinely curious and want to know.

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

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

I post the exact comment here.

Why is the US going after Canada after all? What is the reason for all this hostility?

At least they know the answer if they wanted it.

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

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

What are the core beliefs of liberalism and conservatism? Can you provide a list of defining characteristics for each side?

This device then solves the entire problem.

2024–10–16 [ OO OLAOYE OYEBODE ]

What is lightning?

What is your daily motivation and does it work?

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

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

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

How long would you let a homeless friend stay at your house?

But it can get overloaded, and no longer works.

nine

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

Do women lack the mental strength to succeed at STEM? There seems to be few women at STEM and more women leave STEM after a time of working at it. How can it be just sexism if women aren't banned from entering?

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.

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

Here is a simplified AC power diagram.

Why is the First Amendment referred to as a right to free speech instead of an immunity from punishment for one's words, regardless of their truthfulness?

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

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

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

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

“ 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”

what exactly is a ‘surge’ protector?

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

He then asserts :

This is 'the assistant's answer'

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Barnstars:

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.

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

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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.

He then describes the function of a fuse.

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

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

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.

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

First Sentence:

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

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

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

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

In schematic diagrams this is the symbol for a fuse:

so, what happens?

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

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

(Dc diagram shown, AC is similar).

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

There are three different concepts here that are getting confused.

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

The other is “what does a “fuse” do?”

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

Upvotes:

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

a photo is worth a thousand words.

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

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

What does a fuse do?

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

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

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

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

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.

There are two important concepts here.

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.

One

[old diagram got deleted by accident]

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

eight

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.

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

[image of Common-mode choke]

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

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

He then describes Rainy Season and Lightning.

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

Edit 2024–10.

This one hit behind the barn.

A circuit breaker is similar, but is resettable.