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?

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

The other is “what does a “fuse” do?”

Why do unattractive men assume that a pretty woman like me want them?

(Dc diagram shown, AC is similar).

This one hit behind the barn.

First Sentence:

Why is my older sister so mean to me as if I was her enemy?

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

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

There are three different concepts here that are getting confused.

Gun owners, imagine if an attacker comes to your home and takes your gun to use against you before you had the chance to pick it up. Would you regret owning a gun?

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

He then describes Rainy Season and Lightning.

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 would have happened if Shin was a good movie instead of a bad one?

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

A circuit breaker is similar, but is resettable.

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

What is the estimated number of people with an extra X chromosome?

[image of Common-mode choke]

What is lightning?

what exactly is a ‘surge’ protector?

Why is our generation so unhappy?

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

There are two important concepts here.

What does it mean when someone leaves something in your house, your room to be exact, and when you tell them, they say they left it there on purpose?

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

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

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

Why has Biden pulled ahead in battleground states and is now projected to win the 2024 presidency?

In schematic diagrams this is the symbol for a fuse:

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

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

Do you have any problem dating a younger man?

What does a fuse do?

I post the exact comment here.

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

I am 11 years old and I think I am going through puberty. Why do my nipples hurt when I touch them? Is it normal?

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

nine

[old diagram got deleted by accident]

Did Elon Musk poke fun at Trump amid nationwide 'No Kings' protests? His latest post raises eyebrows - Hindustan Times - Hindustan Times

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

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

He then describes the function of a fuse.

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

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

At least they know the answer if they wanted it.

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

2024–10–10[John johnson John Johnson ]

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

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.

eight

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

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

Edit 2024–10.

Here is a simplified AC power diagram.

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

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

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

But it can get overloaded, and no longer works.

so, what happens?

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

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

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?

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

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.

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.

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).

He then asserts :

a photo is worth a thousand words.

“ 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”

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

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

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

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.

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

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.

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

Upvotes:

This is 'the assistant's answer'

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

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.

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

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

This device then solves the entire problem.

Barnstars:

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

2024–10–16 [ OO OLAOYE OYEBODE ]

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

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

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