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?
15.06.2025 07:45
What does a fuse do?
There are two important concepts here.
What is lightning?
(Dc diagram shown, AC is similar).
One is “what exactly is in a ‘surge protector’ ? ”
The bolt then partially travels down the line to your home.
How has your life changed since starting college?
eight
2024–10–16 [ OO OLAOYE OYEBODE ]
First Sentence:
Why is the US going after Canada after all? What is the reason for all this hostility?
a photo is worth a thousand words.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
He then describes the function of a fuse.
nine
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
It seems Mohan does not understand the difference between a comment and an Answer.
Thousands of galaxies revealed in a single Webb image - Earth.com
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
“ 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 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.
This is 'the assistant's answer'
so, what happens?
What is your most intimate experience with your best friend?
He then describes Rainy Season and Lightning.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
At least they know the answer if they wanted it.
How do you have intercourse with a girl who can remember you for a long time?
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.
This is where the MOV conducts again, and dissipated the energy.
But it can get overloaded, and no longer works.
Can you explain the difference between God and atma according to the Bhagavad-Gita?
It also is a device that limits the change in current flow.
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.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
Why do old men think young women and girls would want them over guys their own age?
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
He then asserts :
[image of Common-mode choke]
Why do Muslims invade Western society?
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
For this case there are devices called Metal oxide varistors (MOV).
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?
Which fish tastes good for South Indian curries?
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.
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.
At one ohm, the resistor has a maximum of 1 watt power.
Why do a bra and panties have to match?
One
These are simplified answers to the original question, and does not change anything I wrote above.
The MOV will conduct when the voltage exceeds 50% of line voltage.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
2024–10–10[John johnson John Johnson ]
A circuit breaker is similar, but is resettable.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
2024–10–14 [Omar Gharbi Omar Gharbi ]
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 I think this circuit , shows a few more pieces.
Edit 2024–10.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
Barnstars:
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.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
This is where this question deviates from being a 'generic' question, and becomes more specific.
Upvotes:
This device then solves the entire problem.
An AC voltage/ current source, and an ac inductive load.
the problem then depends on "how fast does the fuse operate?".
The other is “what does a “fuse” do?”
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.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
Because the load is inductive, the current lags the voltage.(by a bit).
This one hit behind the barn.
But… the neutral is now “floating” because of the 1 ohm resistance.
In schematic diagrams this is the symbol for a fuse:
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
These devices are installed between the “hot” and “neutral” and protective ground.
A fuse is a non-resetable over current circuit protector.
but this device (an Inductor) … impedes the rapid changes in the current.
Now when you have a certain ac resistance, then a current flows in a loop.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
[old diagram got deleted by accident]
The third is lightning and “how it gets conducted into a home.”
what exactly is a ‘surge’ protector?
Here is a simplified AC power diagram.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
There are three different concepts here that are getting confused.