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 02:52
Can the fuse protect the electronic devices from lightning instead of a surge protector.
The MOV will conduct when the voltage exceeds 50% of line voltage.
The third is lightning and “how it gets conducted into a home.”
New model helps to figure out which distant planets may host life - Phys.org
nine
He then asserts :
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.
What does a fuse do?
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
It seems Mohan does not understand the difference between a comment and an Answer.
[old diagram got deleted by accident]
(Dc diagram shown, AC is similar).
The bolt then partially travels down the line to your home.
What are some mind-blowing facts about Michael Jackson?
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
But it can get overloaded, and no longer works.
so, what happens?
Over-the-counter supplement could prevent heart disease in type 2 diabetes patients - Medical Xpress
Now when you have a certain ac resistance, then a current flows in a loop.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
Would you respect the US with a woman as president?
At least they know the answer if they wanted it.
Edit 2024–10.
but I think this circuit , shows a few more pieces.
Did you become a cuckold for your wife?
a photo is worth a thousand words.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
Is OnlyFans good or bad for the society? Why?
A circuit breaker is similar, but is resettable.
An AC voltage/ current source, and an ac inductive load.
One is “what exactly is in a ‘surge protector’ ? ”
Nuclear rocket engine for Moon and Mars - European Space Agency
At one ohm, the resistor has a maximum of 1 watt power.
[image of Common-mode choke]
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?".
A fuse is a non-resetable over current circuit protector.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
Immunotherapy Drugs Show Major Progress in Early-Stage Cancer - Bloomberg.com
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 one hit behind the barn.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
Why did Donald Trump and Melania Trump sleep in different rooms?
2024–10–10[John johnson John Johnson ]
2024–10–16 [ OO OLAOYE OYEBODE ]
This is the picture of an electronic coil of wire wound around a core of magnetic material.
Why prices from these cities in Utah and Nebraska won't be included in inflation data - NPR
The other is “what does a “fuse” do?”
But… the neutral is now “floating” because of the 1 ohm resistance.
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.
2024–10–14 [Omar Gharbi Omar Gharbi ]
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.
“ 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”
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
I post the exact comment here.
In schematic diagrams this is the symbol for a fuse:
He then describes Rainy Season and Lightning.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
This is 'the assistant's answer'
This is where the MOV conducts again, and dissipated the energy.
There are three different concepts here that are getting confused.
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
eight
Here is a simplified AC power diagram.
Upvotes:
These are simplified answers to the original question, and does not change anything I wrote above.
but this device (an Inductor) … impedes the rapid changes in the current.
This device then solves the entire problem.
These devices are installed between the “hot” and “neutral” and protective ground.
One
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 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.
what exactly is a ‘surge’ protector?
First Sentence:
For this case there are devices called Metal oxide varistors (MOV).
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
He then describes the function of a fuse.
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.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
Barnstars:
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
So, the voltage could go up to 500 volts, and the fuse will not open up.
What is lightning?
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
Because the load is inductive, the current lags the voltage.(by a bit).
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
It also is a device that limits the change in current flow.
This is where this question deviates from being a 'generic' question, and becomes more specific.
There are two important concepts here.