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?

Barnstars:

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.

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

Can you write a poem or short story based on the first image that shows up on Pinterest?

Upvotes:

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

In schematic diagrams this is the symbol for a fuse:

Why do women change that much more with age?

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

But it can get overloaded, and no longer works.

This one hit behind the barn.

Is parental involvement in their daughters' marriages beneficial? Why or why not?

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

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

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

Where's the Civil War everyone on the left said would happen?

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

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

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

Man accused of writing Trump assassination letters was framed, officials say - BBC

what exactly is a ‘surge’ protector?

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

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.

‘Strawberry Moon’ June 2025: See The Lowest Full Moon Since 2006 - Forbes

“ 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”

This device then solves the entire problem.

2024–10–10[John johnson John Johnson ]

Some men love anal sex more than vaginal sex. Why?

(Dc diagram shown, AC is similar).

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.

Don't you think Israel is and always has been the biggest obstacle to peace in the Middle East?

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

Here is a simplified AC power diagram.

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

Apple brings Apple Intelligence to the iPhone screen at WWDC 2025 - TechCrunch

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

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

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

What factors have contributed to the decline in popularity of high fantasy books in the modern age of technology and popularity?

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?

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.

There are two important concepts here.

MongoDB (NASDAQ:MDB) Reports Strong Q1, Stock Jumps 14.3% - Yahoo Finance

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

First Sentence:

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

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

[old diagram got deleted by accident]

eight

What is lightning?

At least they know the answer if they wanted it.

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

He then describes the function of a fuse.

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

a photo is worth a thousand words.

nine

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

He then asserts :

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

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

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

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

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

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

What does a fuse do?

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.

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

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.

I post the exact comment here.

He then describes Rainy Season and Lightning.

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

so, what happens?

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

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

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

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

There are three different concepts here that are getting confused.

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

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

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

(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 ]

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

One

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.

The other is “what does a “fuse” do?”

2024–10–16 [ OO OLAOYE OYEBODE ]

[image of Common-mode choke]

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

This is 'the assistant's answer'

A circuit breaker is similar, but is resettable.

A fuse is a non-resetable over current circuit 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.

Edit 2024–10.