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 07:06
eight
Because the load is inductive, the current lags the voltage.(by a bit).
But… the neutral is now “floating” because of the 1 ohm resistance.
Musk-Trump Spat Hits New High As Musk’s Ex Piles On - HuffPost
but this device (an Inductor) … impedes the rapid changes in the current.
2024–10–10[John johnson John Johnson ]
(Dc diagram shown, AC is similar).
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
Here is a simplified AC power diagram.
Yankees will have to find ninth-inning serenity in Luke Weaver’s absence - New York Post
These are simplified answers to the original question, and does not change anything I wrote above.
At one ohm, the resistor has a maximum of 1 watt power.
Now when you have a certain ac resistance, then a current flows in a loop.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
There are three different concepts here that are getting confused.
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 Director Of Final Fantasy Tactics Gets Political - Kotaku
2024–10–14 [Omar Gharbi Omar Gharbi ]
[old diagram got deleted by accident]
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.
How do you perform a lap dance for your boyfriend or husband?
This one hit behind the barn.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
He then describes Rainy Season and Lightning.
Trump travel ban rattles immigrant communities across U.S. - The Washington Post
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?
This is 'the assistant's answer'
The third is lightning and “how it gets conducted into a home.”
Worms Caught Creating Superorganisms in the Wild for the First Time - Indian Defence Review
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.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
[image of Common-mode choke]
What is lightning?
what exactly is a ‘surge’ protector?
Kentucky Downs No. 11 Tigers 16-4 in Clemson Regional - Clemson Tigers
He then asserts :
For this case there are devices called Metal oxide varistors (MOV).
First Sentence:
Is The Last of Us Part 2 really as woke as people say it is?
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.
so, what happens?
Upvotes:
If You Can Perform These 5 Moves at 60, Your Body’s Decades Younger - Eat This Not That
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
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, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
FDA rushed out agency-wide AI tool—it’s not going well - Ars Technica
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
This is where this question deviates from being a 'generic' question, and becomes more specific.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
One
The MOV will conduct when the voltage exceeds 50% of line voltage.
Barnstars:
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
In schematic diagrams this is the symbol for a fuse:
An AC voltage/ current source, and an ac inductive load.
“ 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”
nine
It also is a device that limits the change in current flow.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
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.
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.
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
the problem then depends on "how fast does the fuse operate?".
This device then solves the entire 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.
but I think this circuit , shows a few more pieces.
A fuse is a non-resetable over current circuit protector.
Edit 2024–10.
A circuit breaker is similar, but is resettable.
So, the voltage could go up to 500 volts, and the fuse will not open up.
But it can get overloaded, and no longer works.
He then describes the function of a fuse.
a photo is worth a thousand words.
The bolt then partially travels down the line to your home.
These devices are installed between the “hot” and “neutral” and protective ground.
2024–10–16 [ OO OLAOYE OYEBODE ]
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
What does a fuse do?
I post the exact comment here.
One is “what exactly is in a ‘surge protector’ ? ”
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.
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
This is where the MOV conducts again, and dissipated the energy.
The other is “what does a “fuse” do?”
There are two important concepts here.
At least they know the answer if they wanted it.