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?

A circuit breaker is similar, but is resettable.

Upvotes:

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

Deportees are being held in a converted shipping container in Djibouti, ICE says - NPR

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

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

eight

Why should you never do drugs? Will this story absolutely shock you?

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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

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

Is the Shia claim true that Imam Ali was born inside the Kaaba?

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

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

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?

Angelina Jolie And Brad Pitt’s Daughter Shiloh Reintroduces Herself With New Name - HuffPost

He then asserts :

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

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

Aussie firms Soul Patts and Brickworks' $9 billion merger sends their shares rocketing - CNBC

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

a photo is worth a thousand words.

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

Is Europe willing to risk losing its alliance with the United States, if they choose to continue the war in Ukraine?

2024–10–10[John johnson John Johnson ]

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

What is lightning?

How can one learn to talk frankly?

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

There are two important concepts here.

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

Are there really people who still believe the Earth is flat?

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

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

This is 'the assistant's answer'

Should any books be banned from school libraries? Why is it important for students to read certain books in school?

“ 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”

First Sentence:

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

Measles Case: Visitors To Mahopac Restaurant May Have Been Exposed, Officials Warn - dailyvoice.com

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

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

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.

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

He then describes Rainy Season and Lightning.

2024–10–14 [Omar Gharbi Omar Gharbi ]

2024–10–16 [ OO OLAOYE OYEBODE ]

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

In schematic diagrams this is the symbol for a fuse:

what exactly is a ‘surge’ protector?

He then describes the function of a fuse.

nine

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.

Barnstars:

The other is “what does a “fuse” do?”

[image of Common-mode choke]

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

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

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

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.

[old diagram got deleted by accident]

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

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

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

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

At least they know the answer if they wanted it.

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

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

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

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

This one hit behind the barn.

But it can get overloaded, and no longer works.

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

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

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

What does a fuse do?

so, what happens?

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

One

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

(Dc diagram shown, AC is similar).

This device then solves the entire problem.

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

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.

Edit 2024–10.

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.

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.

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

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

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

Here is a simplified AC power diagram.

There are three different concepts here that are getting confused.

I post the exact comment here.