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: 27.06.2025 06:19
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.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
Why do men date women they are not really interested in?
Upvotes:
what exactly is a ‘surge’ protector?
There are two important concepts here.
Can you share summer photos? Day 8
For this case there are devices called Metal oxide varistors (MOV).
eight
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.
To Break a Bad Habit and Create a New One, Neuroscience Says Just Make One Simple Change - Inc.com
This is where the MOV conducts again, and dissipated the energy.
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 fuse is a device which protects the (circuit) against overload and short circuit.”
First Sentence:
so, what happens?
(Dc diagram shown, AC is similar).
South Africa Is Rising Up Out of The Ocean, Scientists Reveal - ScienceAlert
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
Kate Beckinsale Sues Over Knee Injury on Croatian Set of ‘Canary Black’ - Variety
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
At least they know the answer if they wanted it.
An AC voltage/ current source, and an ac inductive load.
Should you track your blood sugar with a continuous glucose monitor? - NPR
2024–10–14 [Omar Gharbi Omar Gharbi ]
I post the exact comment here.
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
Re-ranking the 16 super regional teams in the 2025 NCAA baseball tournament - NCAA.com
Because the load is inductive, the current lags the voltage.(by a bit).
Edit 2024–10.
The third is lightning and “how it gets conducted into a home.”
Caputo: 10 options for the Tigers at trade deadline - Audacy
nine
[image of Common-mode choke]
But… the neutral is now “floating” because of the 1 ohm resistance.
What exactly is female squirting? Is it only urine or a combination of liquids?
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
[old diagram got deleted by accident]
“ 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”
How anorexia whittled away Carly Kempf's life - Times Union
But it can get overloaded, and no longer works.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
The other is “what does a “fuse” do?”
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.
What does a fuse do?
A fuse is a non-resetable over current circuit protector.
What do bad boys know that nice guys don't?
At one ohm, the resistor has a maximum of 1 watt power.
The MOV will conduct when the voltage exceeds 50% of line voltage.
but this device (an Inductor) … impedes the rapid changes in the current.
Can red light therapy improve blood circulation?
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
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 'the assistant's answer'
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
He then describes Rainy Season and Lightning.
Now when you have a certain ac resistance, then a current flows in a loop.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
Barnstars:
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
Here is a simplified AC power diagram.
2024–10–16 [ OO OLAOYE OYEBODE ]
This is the picture of an electronic coil of wire wound around a core of magnetic material.
One is “what exactly is in a ‘surge protector’ ? ”
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
This device then solves the entire problem.
One
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
It also is a device that limits the change in current flow.
(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.
In schematic diagrams this is the symbol for a fuse:
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
This one hit behind the barn.
2024–10–10[John johnson John Johnson ]
What is lightning?
A circuit breaker is similar, but is resettable.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
the problem then depends on "how fast does the fuse operate?".
These are simplified answers to the original question, and does not change anything I wrote above.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
but I think this circuit , shows a few more pieces.
There are three different concepts here that are getting confused.
He then asserts :
It seems Mohan does not understand the difference between a comment and an Answer.
The bolt then partially travels down the line to your home.
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.
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.
These devices are installed between the “hot” and “neutral” and protective ground.
He then describes the function of a fuse.
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
So, the voltage could go up to 500 volts, and the fuse will not open up.
a photo is worth a thousand words.
This is where this question deviates from being a 'generic' question, and becomes more specific.