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: 30.06.2025 03:47
Barnstars:
The other is “what does a “fuse” do?”
Can the fuse protect the electronic devices from lightning instead of a surge protector.
Aaron Civale traded to White Sox for Andrew Vaughn - Brew Crew Ball
It seems Mohan does not understand the difference between a comment and an Answer.
A fuse is a non-resetable over current circuit protector.
[old diagram got deleted by accident]
How do people in other countries view Trump's trade policies and their impact on the global economy?
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
He then asserts :
so, what happens?
King Charles III pays respects to Air India crash victims at his annual birthday parade - PBS
but I think this circuit , shows a few more pieces.
The third is lightning and “how it gets conducted into a home.”
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
He then describes the function of a fuse.
There are three different concepts here that are getting confused.
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
What is the best case of “You just picked a fight with the wrong person” that you've witnessed?
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?
“ … 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.”
Protein Coffee Can Help You Build Muscle And Lose Weight—Here's How To Make It Taste Great - AOL.com
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
The bolt then partially travels down the line to your home.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
How short is too short for a skirt?
A circuit breaker is similar, but is resettable.
It also is a device that limits the change in current flow.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
GM plans $4 billion push to move production from Mexico to U.S. - The Detroit News
There are two important concepts here.
Edit 2024–10.
These are simplified answers to the original question, and does not change anything I wrote above.
Man called in bomb threat after missing flight at Detroit Metro Airport, feds say - The Detroit News
This is 'the assistant's answer'
This is where this question deviates from being a 'generic' question, and becomes more specific.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
Ancient miasma theory may help explain Health Secretary Robert F. Kennedy Jr.'s vaccine moves - NPR
These devices are installed between the “hot” and “neutral” and protective ground.
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.
This one hit behind the barn.
One
eight
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
How the Indiana Pacers Spun Style Into Substance - The Ringer
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
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.
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.
2024–10–10[John johnson John Johnson ]
a photo is worth a thousand words.
But it can get overloaded, and no longer works.
One is “what exactly is in a ‘surge protector’ ? ”
He then describes Rainy Season and Lightning.
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.
the problem then depends on "how fast does the fuse operate?".
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
“ 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”
(Dc diagram shown, AC is similar).
2024–10–16 [ OO OLAOYE OYEBODE ]
Upvotes:
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.
But… the neutral is now “floating” because of the 1 ohm resistance.
This is where the MOV conducts again, and dissipated the energy.
Now when you have a certain ac resistance, then a current flows in a loop.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
but this device (an Inductor) … impedes the rapid changes in the current.
what exactly is a ‘surge’ protector?
For this case there are devices called Metal oxide varistors (MOV).
At one ohm, the resistor has a maximum of 1 watt power.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
What does a fuse do?
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
At least they know the answer if they wanted it.
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.
First Sentence:
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, the voltage could go up to 500 volts, and the fuse will not open up.
[image of Common-mode choke]
This device then solves the entire problem.
Here is a simplified AC power diagram.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
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.
An AC voltage/ current source, and an ac inductive load.
In schematic diagrams this is the symbol for a fuse:
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.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
I post the exact comment here.
What is lightning?
The MOV will conduct when the voltage exceeds 50% of line voltage.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.