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?

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.

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

Greetings from Warsaw, Poland, where the flags are flying ahead of a key election - NPR

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

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

In schematic diagrams this is the symbol for a fuse:

What are your best funny dating stories?

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

a photo is worth a thousand words.

(Dc diagram shown, AC is similar).

This 1 Kitchen Tool Can Help You Cut Back On Oil & Calories, Dietitian Says - TODAY.com

This is 'the assistant's answer'

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

Russia’s central bank cuts interest rates for first time since 2022 - Financial Times

This device then solves the entire problem.

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

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

Immunotherapy Drugs Show Major Progress in Early-Stage Cancer - Bloomberg.com

What is lightning?

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

This one hit behind the barn.

How NASA Plans To Deal With Death In Space - Jalopnik

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

Upvotes:

2024–10–16 [ OO OLAOYE OYEBODE ]

401(k) Stats Suggest Americans Still Confident - Newser

First Sentence:

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

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

What is the most inappropriate experience you have had with a friend's daughter?

I post the exact comment here.

He then describes the function of a fuse.

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

3 Observations: Running Against the Wind; Isaiah Rodgers Nabs Interception - Minnesota Vikings

so, what happens?

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

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

Women like what they hear while men like what they see, it that true?

There are two important concepts here.

2024–10–10[John johnson John Johnson ]

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

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.

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

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.

Edit 2024–10.

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

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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

He then describes Rainy Season and Lightning.

what exactly is a ‘surge’ protector?

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

[image of Common-mode choke]

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.

The other is “what does a “fuse” do?”

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

Barnstars:

There are three different concepts here that are getting confused.

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.

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

eight

But it can get overloaded, and no longer works.

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

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

A circuit breaker is similar, but is resettable.

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

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

Here is a simplified AC power diagram.

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

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.

“ 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”

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

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

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

What does a fuse do?

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

One

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.

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

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

nine

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

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

[old diagram got deleted by accident]

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?

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

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

He then asserts :

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

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

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

At least they know the answer if they wanted it.