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?

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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

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

I caught my neighbor leaving his 12-year-old son home alone and he has not come back in 6 hours. Should I call CPS?

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

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

The world of the Harry Potter series is usually considered bad worldbuilding. What are some examples of actually good worldbuilding in the books/movies?

I post the exact comment here.

[old diagram got deleted by accident]

a photo is worth a thousand words.

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

There are three different concepts here that are getting confused.

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

This device then solves the entire problem.

Half Duck, Half Beaver: Scientists Finally Crack 100-Million-Year-Old Secret of Platypus Evolution - Indian Defence Review

What is lightning?

The other is “what does a “fuse” do?”

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

A Mistake Led to the Discovery of an Underwater Island Full of Rare Earth Elements - The Daily Galaxy

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.

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

what exactly is a ‘surge’ protector?

What is your age now, and what age do you prefer to stay at forever?

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

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.

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

What are the most meaningful Jewish jokes that reveal insights about Jewish culture?

He then describes Rainy Season and Lightning.

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

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

What are my 10 favorite rock record album opening tracks?

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

so, what happens?

First Sentence:

Can you share a story of someone who had a lucky experience while hitchhiking?

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

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

What's your take on Eternal Sunshine of the Spotless Mind? How has it affected you?

This one hit behind the barn.

[image of Common-mode choke]

2024–10–16 [ OO OLAOYE OYEBODE ]

Why do people hate fat people so much, even people who aren't exactly supermodels themselves? It seems like such a deep, passionate hatred, like they're offended by fat people just existing. Fat people didn't do anything to them, so why hate them?

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

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

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

How much should one budget to travel for 1 month generally?

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

One

“ 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”

Upvotes:

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

Barnstars:

(Dc diagram shown, AC is similar).

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

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

At least they know the answer if they wanted it.

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

He then asserts :

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

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 are two important concepts here.

Edit 2024–10.

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

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.

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

eight

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

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

nine

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

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 ].

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

He then describes the function of a fuse.

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

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

2024–10–10[John johnson John Johnson ]

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.

A circuit breaker is similar, but is resettable.

In schematic diagrams this is the symbol for a fuse:

This is 'the assistant's answer'

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.

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

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

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

Here is a simplified AC power diagram.

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

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 it can get overloaded, and no longer works.

What does a fuse do?

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.

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

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