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: 02.07.2025 02:46
Can the fuse protect the electronic devices from lightning instead of a surge protector.
I post the exact comment here.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
Do you think Keir Starmer is the "party of hope" in the UK?
but I think this circuit , shows a few more pieces.
One is “what exactly is in a ‘surge protector’ ? ”
The bolt then partially travels down the line to your home.
Founding Black Sabbath members visit Birmingham mural ahead of epic hometown show - Louder
An AC voltage/ current source, and an ac inductive load.
eight
Upvotes:
Mets’ need their all-time lost opportunity to be a Dodgers aberration - New York Post
what exactly is a ‘surge’ protector?
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
2025 NHL Draft: Reactions to the Penguins stocking up the cabinets in a big way - PensBurgh
This is the picture of an electronic coil of wire wound around a core of magnetic material.
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.
But it can get overloaded, and no longer works.
One Molecule to Sleep and Wake: A New Brain Switch Discovered - Neuroscience News
One
It seems Mohan does not understand the difference between a comment and an Answer.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
2024–10–10[John johnson John Johnson ]
nine
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
At least they know the answer if they wanted it.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
[image of Common-mode choke]
It also is a device that limits the change in current flow.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
Sean Combs Trial: Possible Juror Dismissal and Mogul’s ‘Threatening’ Voice Notes - Rolling Stone
2024–10–14 [Omar Gharbi Omar Gharbi ]
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.
Barnstars:
Do all you people that took the "jab" feel lied to yet?
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
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.
[old diagram got deleted by accident]
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.
A fuse is a non-resetable over current circuit protector.
At one ohm, the resistor has a maximum of 1 watt power.
Researchers get viable mice by editing DNA from two sperm - Ars Technica
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.
He then describes Rainy Season and Lightning.
the problem then depends on "how fast does the fuse operate?".
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
(Dc diagram shown, AC is similar).
Now when you have a certain ac resistance, then a current flows in a loop.
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?
Here is a simplified AC power diagram.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
So, the voltage could go up to 500 volts, and the fuse will not open up.
What does a fuse do?
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
This is where the MOV conducts again, and dissipated the energy.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
This is 'the assistant's answer'
First Sentence:
The MOV will conduct when the voltage exceeds 50% of line voltage.
A circuit breaker is similar, but is resettable.
“ 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 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.
Edit 2024–10.
There are three different concepts here that are getting confused.
These devices are installed between the “hot” and “neutral” and protective ground.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
so, what happens?
a photo is worth a thousand words.
In schematic diagrams this is the symbol for a fuse:
2024–10–16 [ OO OLAOYE OYEBODE ]
What is lightning?
For this case there are devices called Metal oxide varistors (MOV).
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
This one hit behind the barn.
There are two important concepts here.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
But… the neutral is now “floating” because of the 1 ohm resistance.
Because the load is inductive, the current lags the voltage.(by a bit).
This is where this question deviates from being a 'generic' question, and becomes more specific.
He then describes the function of a fuse.
The third is lightning and “how it gets conducted into a home.”
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?”
This device then solves the entire problem.
but this device (an Inductor) … impedes the rapid changes in the current.
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.
These are simplified answers to the original question, and does not change anything I wrote above.
He then asserts :