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?

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

But it can get overloaded, and no longer works.

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

The heaviest proton emitter: New type of atomic nucleus discovered - Phys.org

(Dc diagram shown, AC is similar).

A circuit breaker is similar, but is resettable.

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

Lighter than normal WWDC expected without significant Apple Intelligence uprgrades - AppleInsider

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

At least they know the answer if they wanted it.

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

Patriots OTAs takeaways: Drake Maye rises, Stefon Diggs returns, rookie WR shines - Boston Herald

eight

In schematic diagrams this is the symbol for a fuse:

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

Djokovic vs Norrie: Things we learned - Roland Garros

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

I post the exact comment here.

Barnstars:

What the Spurs will do with the second pick - Pounding The Rock

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

Here is a simplified AC power diagram.

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

US valley fever cases may be 18 times higher than reported - CIDRAP

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.

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

Edit 2024–10.

Blue Diamond to close historic midtown Sacramento plant; 600 jobs affected - Sacramento Bee

(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 [Victor Olarewsju Victor Olarewaju ]

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

Do you consider masturbating to porn cheating if you are married?

He then describes Rainy Season and Lightning.

what exactly is a ‘surge’ protector?

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

What are some good customer engagement platforms?

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

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

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

Why aren't U.S. prisons more like Marine Corps boot camp, were every second of the day there are mandatory activities so that at night everyone is so tired they go to sleep until wakeup at 5:30 am? Would this make prisons safer for all?

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

What does a fuse do?

[image of Common-mode choke]

See a young star potentially giving birth to a giant planet in new image from Very Large Telescope - Live Science

First Sentence:

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.

“ 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”

8 skincare hacks to deal with back acne - Times of India

This one hit behind the barn.

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.

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

Order of selection for 2025 NHL Draft - NHL.com

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

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

Your Android phone just got a major feature upgrade for free - including these Pixel models - ZDNET

What is lightning?

2024–10–16 [ OO OLAOYE OYEBODE ]

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

This Cat Poop Parasite Can Decapitate Sperm—and It Might Be Fueling Infertility - Gizmodo

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

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

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

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

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

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

so, what happens?

This device then solves the entire problem.

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

[old diagram got deleted by accident]

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.

One

There are three different concepts here that are getting confused.

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

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?

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

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

Upvotes:

nine

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?”

He then describes the function of a fuse.

a photo is worth a thousand words.

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

There are two important concepts here.

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.

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

2024–10–10[John johnson John Johnson ]

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

He then asserts :

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

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

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 'the assistant's answer'

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

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

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

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