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?

“ 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”

There are two important concepts here.

2024–10–16 [ OO OLAOYE OYEBODE ]

For those who were actually old enough to have experienced the 1970s and not for those who were born in the 70s. What were the pros and cons of that era?

nine

He then describes Rainy Season and Lightning.

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

Do you have pics of the wife making out with another guy?

What is lightning?

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

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.

Which album is your favorite that's now 50 years old (from 1975), and what's the best song on the album?

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?

2024–10–10[John johnson John Johnson ]

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

Would you let your partner cheat on you every now and again?

There are three different concepts here that are getting confused.

Edit 2024–10.

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

I'm pretty sure that my dog is transgender, how would I go about transitioning it?

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

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

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

How do I develop the patience to read books?

He then asserts :

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

Why do people say "tall, dark, and handsome" when they actually mean "tall, white, and handsome"?

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

(Dc diagram shown, AC is similar).

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

Should parents force their kids to go to school when they are sick?

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.

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.

This is 'the assistant's answer'

Where are the big girls? This is the first time I've seen a bigger lady boy and that's awesome .. you should post more of them here, nothing wrong with a thick black lady

so, what happens?

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

I post the exact comment here.

Is the Philippines PH a poor 3rd world or 4th world country forever and forever?

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.

2024–10–14 [Omar Gharbi Omar Gharbi ]

The other is “what does a “fuse” do?”

New model helps to figure out which distant planets may host life - Space

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

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

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

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

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

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

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

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

A circuit breaker is similar, but is resettable.

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

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

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

Upvotes:

Barnstars:

First Sentence:

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

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.

[image of Common-mode choke]

what exactly is a ‘surge’ protector?

Here is a simplified AC power diagram.

One

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

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

[old diagram got deleted by accident]

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.

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

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

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

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

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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

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

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

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

At least they know the answer if they wanted it.

He then describes the function of a fuse.

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

a photo is worth a thousand words.

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

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

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

In schematic diagrams this is the symbol for a fuse:

This device then solves the entire problem.

What does a fuse do?

This one hit behind the barn.

eight

But it can get overloaded, and no longer works.

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

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

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.