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 01:25
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.
I post the exact comment here.
Why cant a narcissist admit when they are wrong?
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
He then describes Rainy Season and Lightning.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
How can I earn money through OnlyFans?
These devices are installed between the “hot” and “neutral” and protective ground.
Now when you have a certain ac resistance, then a current flows in a loop.
Edit 2024–10.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
what exactly is a ‘surge’ protector?
At least they know the answer if they wanted it.
It also is a device that limits the change in current flow.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
First Sentence:
What was your most memorable combat mission during the Vietnam War?
but I think this circuit , shows a few more pieces.
nine
“ 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”
What is a common thought that keeps people up at night? Why do some people experience this?
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.
He then asserts :
eight
Is the Philippines PH a poor 3rd world or 4th world country forever and forever?
the problem then depends on "how fast does the fuse operate?".
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.
So, the voltage could go up to 500 volts, and the fuse will not open up.
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.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
2024–10–16 [ OO OLAOYE OYEBODE ]
Which race of women are the hottest?
This is 'the assistant's answer'
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?
(Dc diagram shown, AC is similar).
What baseball stories from the early days of the sport seem too bizarre to be true?
One
At one ohm, the resistor has a maximum of 1 watt power.
[image of Common-mode choke]
[old diagram got deleted by accident]
2024–10–14 [Omar Gharbi Omar Gharbi ]
Upvotes:
“Very Odd” New Sea Monster Identified After Decades of Mystery - SciTechDaily
But it can get overloaded, and no longer works.
What is lightning?
so, what happens?
Musk-Trump rupture poses a serious threat to NASA and Pentagon programs - The Washington Post
The third is lightning and “how it gets conducted into a home.”
But… the neutral is now “floating” because of the 1 ohm resistance.
The bolt then partially travels down the line to your home.
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.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
There are three different concepts here that are getting confused.
a photo is worth a thousand words.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
The MOV will conduct when the voltage exceeds 50% of line voltage.
He then describes the function of a fuse.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
These are simplified answers to the original question, and does not change anything I wrote above.
This is where the MOV conducts again, and dissipated the energy.
An AC voltage/ current source, and an ac inductive load.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
It seems Mohan does not understand the difference between a comment and an Answer.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
This device then solves the entire problem.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
For this case there are devices called Metal oxide varistors (MOV).
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?".
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
There are two important concepts here.
Barnstars:
A fuse is a non-resetable over current circuit protector.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
One is “what exactly is in a ‘surge protector’ ? ”
but this device (an Inductor) … impedes the rapid changes in the current.
2024–10–10[John johnson John Johnson ]
What does a fuse do?
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
This one hit behind the barn.
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.
Here is a simplified AC power diagram.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
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.
In schematic diagrams this is the symbol for a fuse:
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
The other is “what does a “fuse” do?”
Because the load is inductive, the current lags the voltage.(by a bit).
A circuit breaker is similar, but is resettable.