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: 03.07.2025 00:08
One
what exactly is a ‘surge’ protector?
Now when you have a certain ac resistance, then a current flows in a loop.
Star Bassist Carol Kaye rejects Rock & Roll Hall of Fame honor - NPR
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
First Sentence:
[image of Common-mode choke]
Who is Meghan Markle and why is she so controversial on the Internet?
A circuit breaker is similar, but is resettable.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
nine
This is the picture of an electronic coil of wire wound around a core of magnetic material.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
Inside the Spectacular Downfall of UnitedHealth and Its CEO - WSJ
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.
but I think this circuit , shows a few more pieces.
What is lightning?
Barnstars:
It seems Mohan does not understand the difference between a comment and an Answer.
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.
Why do a lot of autistic people not know how to style their hair?
This is where this question deviates from being a 'generic' question, and becomes more specific.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
This one hit behind the barn.
Is Veuve Clicquot Brut a good champagne?
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
One is “what exactly is in a ‘surge protector’ ? ”
There are two important concepts here.
“ 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”
2024–10–10[John johnson John Johnson ]
Here is a simplified AC power diagram.
USA roster: 15 MLS players called for 2025 Concacaf Gold Cup - MLSsoccer.com
(Dc diagram shown, AC is similar).
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
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?
Carlie Irsay-Gordon explains her habit of wearing a headset during games - NBC Sports
the problem then depends on "how fast does the fuse operate?".
He then describes Rainy Season and Lightning.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
17 more Rite Aid stores to close in WA, including 4 Bartell Drugs - The Seattle Times
So, the voltage could go up to 500 volts, and the fuse will not open up.
There are three different concepts here that are getting confused.
so, what happens?
For this case there are devices called Metal oxide varistors (MOV).
but this device (an Inductor) … impedes the rapid changes in the current.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
2024–10–14 [Omar Gharbi Omar Gharbi ]
But it can get overloaded, and no longer works.
He then asserts :
These are simplified answers to the original question, and does not change anything I wrote above.
Edit 2024–10.
At least they know the answer if they wanted it.
What does a fuse do?
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.
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.
[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.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
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.
eight
These devices are installed between the “hot” and “neutral” and protective ground.
He then describes the function of a fuse.
This device then solves the entire problem.
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
The MOV will conduct when the voltage exceeds 50% of line voltage.
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
It also is a device that limits the change in current flow.
The bolt then partially travels down the line to your home.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
I post the exact comment here.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
The third is lightning and “how it gets conducted into a home.”
This is 'the assistant's answer'
At one ohm, the resistor has a maximum of 1 watt power.
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.
2024–10–16 [ OO OLAOYE OYEBODE ]
a photo is worth a thousand words.
A fuse is a non-resetable over current circuit protector.
An AC voltage/ current source, and an ac inductive load.
Because the load is inductive, the current lags the voltage.(by a bit).
This is where the MOV conducts again, and dissipated the energy.
But… the neutral is now “floating” because of the 1 ohm resistance.
In schematic diagrams this is the symbol for a fuse:
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 “.
Upvotes:
The other is “what does a “fuse” do?”