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?
Last Updated: 26.06.2025 06:23
One is “what exactly is in a ‘surge protector’ ? ”
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
These are simplified answers to the original question, and does not change anything I wrote above.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
But it can get overloaded, and no longer works.
How much higher are McDonald's prices going to go?
The MOV will conduct when the voltage exceeds 50% of line voltage.
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 fuse is a non-resetable over current circuit protector.
Fiery Orange Gems From The Moon Reveal Secrets of Its Violent Past - ScienceAlert
the problem then depends on "how fast does the fuse operate?".
A circuit breaker is similar, but is resettable.
It seems Mohan does not understand the difference between a comment and an Answer.
I've written three books, but I haven't been able to promote them yet. What should I do?
This is where the MOV conducts again, and dissipated the energy.
The third is lightning and “how it gets conducted into a home.”
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
‘Bianca Censori Candy’ Trends as Amid New Lingerie Photos - Yahoo
One
He then describes Rainy Season and Lightning.
This device then solves the entire problem.
What do you think is the #1 cause of why relationships nowadays don't seem to last long?
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 “.
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.
An AC voltage/ current source, and an ac inductive load.
nine
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.
Procter & Gamble to Cut 7,000 Jobs - WSJ
I post the exact comment here.
There are three different concepts here that are getting confused.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
What are some tips for a girl with low self-esteem to start dating?
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
The other is “what does a “fuse” do?”
Here is a simplified AC power diagram.
Full Money in the Bank results - WWE
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
Because the load is inductive, the current lags the voltage.(by a bit).
It also is a device that limits the change in current flow.
Frequent Nightmares Linked to Faster Aging and Premature Death - Gizmodo
2024–10–10[John johnson John Johnson ]
so, what happens?
There are two important concepts here.
Could Patriots cut Stefon Diggs and owe him nothing? It’s complicated. - NBC Sports
Can the fuse protect the electronic devices from lightning instead of a surge protector.
For this case there are devices called Metal oxide varistors (MOV).
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
What are the effects of red light therapy for fat loss?
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.
He then describes the function of a fuse.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
2024–10–16 [ OO OLAOYE OYEBODE ]
What is lightning?
This is 'the assistant's answer'
what exactly is a ‘surge’ protector?
First Sentence:
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
What does a fuse do?
The bolt then partially travels down the line to your home.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
eight
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
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.
Upvotes:
He then asserts :
But… the neutral is now “floating” because of the 1 ohm resistance.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
2024–10–14 [Omar Gharbi Omar Gharbi ]
Barnstars:
At one ohm, the resistor has a maximum of 1 watt power.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
a photo is worth a thousand words.
(Dc diagram shown, AC is similar).
At least they know the answer if they wanted it.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
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.
This is where this question deviates from being a 'generic' question, and becomes more specific.
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?
“ 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”
but this device (an Inductor) … impedes the rapid changes in the current.
[image of Common-mode choke]
[old diagram got deleted by accident]
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.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
This one hit behind the barn.
Now when you have a certain ac resistance, then a current flows in a loop.
These devices are installed between the “hot” and “neutral” and protective ground.
In schematic diagrams this is the symbol for a fuse:
Edit 2024–10.
but I think this circuit , shows a few more pieces.
So, the voltage could go up to 500 volts, and the fuse will not open up.
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.