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?

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

First Sentence:

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

During the Atlmark incident in 1940, the Brit war criminals violated Norwegian neutrality. Hitler could then justify invading Norway. Have the Brits ever apologized for violating Norwegian neutrality?

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

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 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.

What does it mean if you dream your dad died?

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

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

What does a fuse do?

How can I help my cat adjust to sleeping in its own room after allowing it to sleep with us as a kitten?

2024–10–16 [ OO OLAOYE OYEBODE ]

This device then solves the entire problem.

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.

Was Michael Jackson really an innocent person?

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

eight

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

Who is the most trusted person in your life, and do they have the same trust on you?

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

nine

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

What happens if a parent refuses to let their child be transgender? What happens if the parent tries their hardest not to allow their child to be trans, like flushing every bottle of their trans child's HRT down the toilet?

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

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

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

If you caught a shoplifter at your yard sale, how would you handle it?

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

[old diagram got deleted by accident]

(Dc diagram shown, AC is similar).

What is the naughtiest fantasy that you've lived out?

One

Barnstars:

a photo is worth a thousand words.

What does it mean when a guy says he's afraid of falling for someone else after going through heartbreaks?

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

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

A circuit breaker is similar, but is resettable.

If the Red Pill is supposed to be so bad, why are so many young men buying into it? What about Red Pill makes it appealing to them?

Edit 2024–10.

This one hit behind the barn.

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

Defense Department signs OpenAI for $200 million 'frontier AI' pilot project - theregister.com

Upvotes:

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

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

The other is “what does a “fuse” do?”

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.

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

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

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

2024–10–10[John johnson John Johnson ]

I post the exact comment here.

At least they know the answer if they wanted it.

What is lightning?

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

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.

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

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

He then describes Rainy Season and Lightning.

But it can get overloaded, and no longer works.

In schematic diagrams this is the symbol for a fuse:

“ 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”

This is 'the assistant's answer'

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

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

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.

[image of Common-mode choke]

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

so, what happens?

He then asserts :

There are three different concepts here that are getting confused.

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?

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

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

Here is a simplified AC power diagram.

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

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

There are two important concepts here.

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

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.

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

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

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

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

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

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

what exactly is a ‘surge’ protector?

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

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

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

He then describes the function of a fuse.

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.