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?

2024–10–14 [Omar Gharbi Omar Gharbi ]

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

a photo is worth a thousand words.

Why are you bare-nakedly displaying your anti-Trump bias while ignoring the liberals' destruction of the US? I am now blocking your e-mails because of your biased articles.

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?

[image of Common-mode choke]

In schematic diagrams this is the symbol for a fuse:

What are the major security challenges facing India, both domestically and internationally, and how does the government address them?

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

What is lightning?

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.

Cher’s Son Elijah Blue Allman Hospitalized After ‘Acting Erratically’ - Rolling Stone

Upvotes:

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

He then asserts :

Have you ever followed through being bi-curious?

eight

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

Barnstars:

Why is there no great temptress figure in any of Tolkien’s major works?

But it can get overloaded, and no longer works.

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

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

Why am I so afraid that gun owners have set traps to kill me outside my house or my car?

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.”

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

Why is Tiananmen Square censored?

Here is a simplified AC power diagram.

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.

The other is “what does a “fuse” do?”

What is your review of House of the Dragon Season 2 finale, Episode 8?

“ 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”

There are three different concepts here that are getting confused.

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

What are the legal obligations of a new homeowner if the previous owner leaves furniture in the house after moving out?

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

First Sentence:

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

How can I fall asleep fast at night?

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

2024–10–16 [ OO OLAOYE OYEBODE ]

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

Stanford Doctors Invent Device That Appears to Be Able to Save Tons of Stroke Patients Before They Die - futurism.com

He then describes Rainy Season and Lightning.

2024–10–10[John johnson John Johnson ]

A circuit breaker is similar, but is resettable.

Can you give an example of a documentary where the person telling the story believed it to be true, but it turned out to be false?

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

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

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

what exactly is a ‘surge’ protector?

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.

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

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.

This is 'the assistant's answer'

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

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

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

I post the exact comment here.

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

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

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.

Edit 2024–10.

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

so, what happens?

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

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

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

(Dc diagram shown, AC is similar).

He then describes the function of a fuse.

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

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

What does a fuse do?

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 a photo where a lightning bolt took out a home's complete mains distribution box, and a lot of electronic gear as well.

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

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

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

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

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

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

At least they know the answer if they wanted it.

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

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

nine

There are two important concepts here.

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

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

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

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

This device then solves the entire problem.

[old diagram got deleted by accident]

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

This one hit behind the barn.