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?
11.06.2025 01:00
This is the picture of an electronic coil of wire wound around a core of magnetic material.
“ 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 bolt then partially travels down the line to your home.
How often do prisoners try to escape from jail/prison, and how many of them succeed?
but this device (an Inductor) … impedes the rapid changes in the current.
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
2024–10–10[John johnson John Johnson ]
Why do men think I’m easy just by looking at me?
This one hit behind the barn.
It also is a device that limits the change in current flow.
But it can get overloaded, and no longer works.
Nintendo: Please don’t remove film layer from Nintendo Switch 2 screen - My Nintendo News
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
The third is lightning and “how it gets conducted into a home.”
2024–10–14 [Omar Gharbi Omar Gharbi ]
nine
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
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.
Can I use the LEG PRESS to build muscle?
He then describes Rainy Season and Lightning.
This is where this question deviates from being a 'generic' question, and becomes more specific.
One
The S&P 500 closes at 6,000 as bulls aim for return to record territory - MarketWatch
These are simplified answers to the original question, and does not change anything I wrote above.
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.
First Sentence:
the problem then depends on "how fast does the fuse operate?".
2024–10–16 [ OO OLAOYE OYEBODE ]
The other is “what does a “fuse” do?”
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
JPMorgan’s Jamie Dimon Sees Bond Market Crack — Why And What To Do - Forbes
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
So, the voltage could go up to 500 volts, and the fuse will not open up.
He then asserts :
Now when you have a certain ac resistance, then a current flows in a loop.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
Hulu’s ‘Predator: Killer Of Killers’ Lands Predator’s Best Critic Score Ever - Forbes
I post the exact comment here.
Here is a simplified AC power diagram.
but I think this circuit , shows a few more pieces.
Tender Moment Nurse Mare Adopts Orphaned Foal As Her Own Has Us in Tears - Yahoo
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
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%).
Major US retailers cancel Nintendo Switch 2 pre-orders - GamesIndustry.biz
One is “what exactly is in a ‘surge protector’ ? ”
Upvotes:
What is lightning?
Reddit sports communities central to new AI lawsuit - Awful Announcing
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.
At least they know the answer if they wanted it.
eight
The #1 Snack for Better Gut Health, Recommended by a Gastroenterologist - AOL.com
This is where the MOV conducts again, and dissipated the energy.
It seems Mohan does not understand the difference between a comment and an Answer.
At one ohm, the resistor has a maximum of 1 watt power.
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.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
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.
This device then solves the entire problem.
There are two important concepts here.
Because the load is inductive, the current lags the voltage.(by a bit).
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
Edit 2024–10.
[old diagram got deleted by accident]
But… the neutral is now “floating” because of the 1 ohm resistance.
(Dc diagram shown, AC is similar).
In schematic diagrams this is the symbol for a fuse:
An AC voltage/ current source, and an ac inductive load.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
What does a fuse do?
what exactly is a ‘surge’ protector?
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
He then describes the function of a fuse.
For this case there are devices called Metal oxide varistors (MOV).
so, what happens?
A fuse is a non-resetable over current circuit protector.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
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.
[image of Common-mode choke]
These devices are installed between the “hot” and “neutral” and protective ground.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
This is 'the assistant's answer'
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
A circuit breaker is similar, but is resettable.
Barnstars:
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
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.
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 are three different concepts here that are getting confused.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
a photo is worth a thousand words.