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?

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.

At least they know the answer if they wanted it.

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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.

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

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

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

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

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

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

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

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

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

What is the reason behind some people referring to themselves as "nice guys" instead of simply being nice?

I post the exact comment here.

What does a fuse do?

Barnstars:

Ive been pretending to be okay and acting as normal as possible, but Im actually completely heartbroken after a recent breakup. Its painful and really affecting me, to the point where I cant concentrate at work, Ive lost my appetite, I cant sleep, and It feels as if my whole world has been turned upside down. I loved him so much. He said so many cruel things to me and it made me realize he must not have loved me the way I loved him, or he wouldnt have said such horrible things. How do I handle the heartbreak and why cant I accept that he didnt love me and just forget about him?

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

This is 'the assistant's answer'

This one hit behind the barn.

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But it can get overloaded, and no longer works.

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

There are three different concepts here that are getting confused.

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

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

so, what happens?

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

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

A circuit breaker is similar, but is resettable.

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a photo is worth a thousand words.

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

The other is “what does a “fuse” do?”

What do dreams about dead people mean?

This device then solves the entire problem.

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.

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

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

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

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[image of Common-mode choke]

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.

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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[old diagram got deleted by accident]

Upvotes:

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

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?

“ 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”

He then asserts :

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

He then describes the function of a fuse.

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.

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

(Dc diagram shown, AC is similar).

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

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

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

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

what exactly is a ‘surge’ protector?

He then describes Rainy Season and Lightning.

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

There are two important concepts here.

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

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.

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

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

2024–10–10[John johnson John Johnson ]

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2024–10–16 [ OO OLAOYE OYEBODE ]

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

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

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

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

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.

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.

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

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

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

One

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.

What is lightning?

Here is a simplified AC power diagram.

First Sentence:

In schematic diagrams this is the symbol for a fuse:

2024–10–14 [Omar Gharbi Omar Gharbi ]

Edit 2024–10.