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?
10.06.2025 14:25
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
nine
These devices are installed between the “hot” and “neutral” and protective ground.
In schematic diagrams this is the symbol for a fuse:
Can the fuse protect the electronic devices from lightning instead of a surge protector.
A fuse is a non-resetable over current circuit protector.
Who is the most trusted person in your life, and do they have the same trust on you?
What is lightning?
It seems Mohan does not understand the difference between a comment and an Answer.
First Sentence:
If you used Pocket to save links, these alternatives will serve you well - Android Police
what exactly is a ‘surge’ protector?
The MOV will conduct when the voltage exceeds 50% of line voltage.
Because the load is inductive, the current lags the voltage.(by a bit).
4 things are making us sick, new MAHA documentary says. What the research says - CNN
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
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?
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
For this case there are devices called Metal oxide varistors (MOV).
But… the neutral is now “floating” because of the 1 ohm resistance.
Barnstars:
TSA shares travel warning for Costco members - TheStreet
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
This is where this question deviates from being a 'generic' question, and becomes more specific.
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.
007 First Light Trailer Reveals The First-Ever James Bond Origin Story - GameSpot
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
2024–10–16 [ OO OLAOYE OYEBODE ]
a photo is worth a thousand words.
What is your most intimate experience with your best friend?
But it can get overloaded, and no longer works.
This one hit behind the barn.
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.
Why do people believe that global warming is man made?
This is the picture of an electronic coil of wire wound around a core of magnetic material.
The other is “what does a “fuse” do?”
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
What it is like to have sex with a relative woman?
[old diagram got deleted by accident]
One is “what exactly is in a ‘surge protector’ ? ”
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
At least they know the answer if they wanted it.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
Now when you have a certain ac resistance, then a current flows in a loop.
2024–10–14 [Omar Gharbi Omar Gharbi ]
One
but this device (an Inductor) … impedes the rapid changes in the current.
What’s going on with measles, bird flu, and COVID? Here’s a guide to the latest. - The Boston Globe
I post the exact comment here.
There are two important concepts here.
[image of Common-mode choke]
At one ohm, the resistor has a maximum of 1 watt power.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
The bolt then partially travels down the line to your home.
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 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.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
This is 'the assistant's answer'
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
He then asserts :
A circuit breaker is similar, but is resettable.
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.
An AC voltage/ current source, and an ac inductive load.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
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.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
the problem then depends on "how fast does the fuse operate?".
This is where the MOV conducts again, and dissipated the energy.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
so, what happens?
(Dc diagram shown, AC is similar).
There are three different concepts here that are getting confused.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
It also is a device that limits the change in current flow.
“ 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”
So, the voltage could go up to 500 volts, and the fuse will not open up.
What does a fuse do?
eight
He then describes Rainy Season and Lightning.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
2024–10–10[John johnson John Johnson ]
Upvotes:
The third is lightning and “how it gets conducted into a home.”
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.
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.
Here is a simplified AC power diagram.
Edit 2024–10.
This device then solves the entire problem.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
but I think this circuit , shows a few more pieces.
He then describes the function of 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.