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?

What does a fuse do?

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

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

Stunning Images Reveal The Sun's Surface in Unprecedented Detail - ScienceAlert

At least they know the answer if they wanted it.

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

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

What are some important works of Marcel Proust (novelist)?

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

so, what happens?

Barnstars:

Trump is shot, tackled by SS agents, yet then stands, defiant, with fist high, and 52 hours later, walks into the Republican Convention to thunderous applause. Is there anything that can stop this man, who loves his country? Does he get your vote?

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.

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

Upvotes:

"An ADC for ADC Purists": League Of Legends Unveils Newest Champion, Yunara - TheGamer

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

But it can get overloaded, and no longer works.

There are two important concepts here.

Jennifer Garner Celebrates Ben Affleck on Father’s Day with Throwback Photo of Him Cuddling 1 of Their Kids - AOL.com

[image of Common-mode choke]

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

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

Why does my intimate area “sweat” and smell so much? I almost have to have a shower everyday. How do I get rid of this?

“ 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”

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

what exactly is a ‘surge’ protector?

What are some funny stories of people calling 911 for non-emergencies?

He then describes Rainy Season and Lightning.

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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

NASA to silence Voyager's social media accounts - theregister.com

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

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

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

How did President Biden address the housing crisis when he entered office, and what were the outcomes of his actions?

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

nine

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

Staying in This Place Too Long Could Change How You Age, Scientists Say - The Daily Galaxy

First Sentence:

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?

Here is a simplified AC power diagram.

MIT chemical engineers make potentially game-changing breakthrough with crude oil: 'Creates a new way to apply it' - The Cool Down

This one hit behind the barn.

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

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

Bacteria living in your gut may cause depression, not your brain, says a new study - Earth.com

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.

There are three different concepts here that are getting confused.

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

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

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.

I post the exact comment here.

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

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

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

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.

[old diagram got deleted by accident]

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

(Dc diagram shown, AC is similar).

2024–10–16 [ OO OLAOYE OYEBODE ]

He then asserts :

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

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

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

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

What is lightning?

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

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

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

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

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.

He then describes the function of a fuse.

Edit 2024–10.

A circuit breaker is similar, but is resettable.

The other is “what does a “fuse” do?”

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

2024–10–10[John johnson John Johnson ]

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

In schematic diagrams this is the symbol for a fuse:

a photo is worth a thousand words.

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

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

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.

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

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

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.

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

This is 'the assistant's answer'

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

One

eight

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi