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: 24.06.2025 07:31
But… the neutral is now “floating” because of the 1 ohm resistance.
[image of Common-mode choke]
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
So, the voltage could go up to 500 volts, and the fuse will not open up.
Upvotes:
For this case there are devices called Metal oxide varistors (MOV).
If You Deal With Pain From Sciatica, An Expert Says These Products May Help - HuffPost
A fuse is a non-resetable over current circuit protector.
eight
These devices are installed between the “hot” and “neutral” and protective ground.
It seems Mohan does not understand the difference between a comment and an Answer.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
One is “what exactly is in a ‘surge protector’ ? ”
This device then solves the entire problem.
a photo is worth a thousand words.
This is where the MOV conducts again, and dissipated the energy.
It is possible to remove a voice from a double voice audio so I can hear just the one voice?
At least they know the answer if they wanted it.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
What discoveries in AI research have changed our understanding of intelligence evolution?
There are three different concepts here that are getting confused.
I post the exact comment here.
At one ohm, the resistor has a maximum of 1 watt power.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
2024–10–16 [ OO OLAOYE OYEBODE ]
He then describes Rainy Season and Lightning.
How is sex in college like with roommates and big campuses?
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 MOV will conduct when the voltage exceeds 50% of line voltage.
First Sentence:
Scientists Found Cancer in a Dinosaur – And It Might Help Save Human Lives - ScienceAlert
What is lightning?
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
How scientists discovered 200-million-year-old species thought to be extinct - MSN
but this device (an Inductor) … impedes the rapid changes in the current.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
This is where this question deviates from being a 'generic' question, and becomes more specific.
"People don't even like him": Musk becomes GOP pariah after "ridiculous" Trump attacks - Axios
nine
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?
2024–10–14 [Omar Gharbi Omar Gharbi ]
Most companies are already raising prices or plan to because of tariffs, data shows - CNBC
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
An AC voltage/ current source, and an ac inductive load.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
These are simplified answers to the original question, and does not change anything I wrote above.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
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.
Is the global economy heading for another major recession in 2025? 📉💸?
Barnstars:
what exactly is a ‘surge’ protector?
(Dc diagram shown, AC is similar).
He then asserts :
Now when you have a certain ac resistance, then a current flows in a loop.
But it can get overloaded, and no longer works.
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.
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.
2024–10–10[John johnson John Johnson ]
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.
A circuit breaker is similar, but is resettable.
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?".
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
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.
The third is lightning and “how it gets conducted into a home.”
Because the load is inductive, the current lags the voltage.(by a bit).
He then describes the function of a fuse.
There are two important concepts here.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
In schematic diagrams this is the symbol for a fuse:
One
Can the fuse protect the electronic devices from lightning instead of a surge protector.
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
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.
the problem then depends on "how fast does the fuse operate?".
This one hit behind the barn.
This is 'the assistant's answer'
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
It also is a device that limits the change in current flow.
Edit 2024–10.
so, what happens?
“ 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”
[old diagram got deleted by accident]
but I think this circuit , shows a few more pieces.
The bolt then partially travels down the line to your home.
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.
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.
The other is “what does a “fuse” do?”
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
What does a fuse do?