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 05:23
In schematic diagrams this is the symbol for a fuse:
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
2024–10–14 [Omar Gharbi Omar Gharbi ]
Upvotes:
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?”
Review of American Airlines' Flagship Suite Preferred on the inaugural flight - The Points Guy
(Dc diagram shown, AC is similar).
He then describes the function of a fuse.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
Is it true that most women like alpha males?
but I think this circuit , shows a few more pieces.
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.
What does a fuse do?
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
This is the picture of an electronic coil of wire wound around a core of magnetic material.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
These are simplified answers to the original question, and does not change anything I wrote above.
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.
Here is a simplified AC power diagram.
2024–10–16 [ OO OLAOYE OYEBODE ]
One is “what exactly is in a ‘surge protector’ ? ”
If an abortion doesn’t affect you, why do people make it a big deal?
But… the neutral is now “floating” because of the 1 ohm resistance.
This is 'the assistant's answer'
“ 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”
Several people killed in school shooting in Austria's second biggest city, police say - NBC News
One
what exactly is a ‘surge’ protector?
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.
Chrysler Is 100 Years Old, and It's 'Back On,' Stellantis Design Boss Gilles Says - Road & Track
[old diagram got deleted by accident]
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
nine
How old is planet Earth? Is it 4.5 billion years old or 6,000 years old?
Because the load is inductive, the current lags the voltage.(by a bit).
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
There are three different concepts here that are getting confused.
What is your review of the Redmi 9A? Is it worth buying?
There are two important concepts here.
At least they know the answer if they wanted it.
He then describes Rainy Season and Lightning.
Barnstars:
Edit 2024–10.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
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.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
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, 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).
I post the exact comment here.
eight
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
But it can get overloaded, and no longer works.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
So, the voltage could go up to 500 volts, and the fuse will not open up.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
a photo is worth a thousand words.
This is where this question deviates from being a 'generic' question, and becomes more specific.
It also is a device that limits the change in current flow.
2024–10–10[John johnson John Johnson ]
The third is lightning and “how it gets conducted into a home.”
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
The bolt then partially travels down the line to your home.
A circuit breaker is similar, but is resettable.
An AC voltage/ current source, and an ac inductive load.
It seems Mohan does not understand the difference between a comment and an Answer.
Now when you have a certain ac resistance, then a current flows in a loop.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
This is where the MOV conducts again, and dissipated the energy.
This device then solves the entire problem.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
First Sentence:
What is lightning?
The MOV will conduct when the voltage exceeds 50% of line voltage.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
This one hit behind the barn.
At one ohm, the resistor has a maximum of 1 watt power.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
but this device (an Inductor) … impedes the rapid changes in the current.
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.
For this case there are devices called Metal oxide varistors (MOV).
the problem then depends on "how fast does the fuse operate?".
These devices are installed between the “hot” and “neutral” and protective ground.
[image of Common-mode choke]
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.
He then asserts :