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 12:45
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
The other is “what does a “fuse” do?”
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.
A Sleep Expert Says It's OK To Use Your Phone In Bed For A Surprising Reason - Bustle
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
He then describes Rainy Season and Lightning.
What is lightning?
First Sentence:
But… the neutral is now “floating” because of the 1 ohm resistance.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
[old diagram got deleted by accident]
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
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?
What was the first Native American tribe to inhabit Long Island, NY?
eight
Here is a simplified AC power diagram.
but I think this circuit , shows a few more pieces.
What is the central theme of the entire Bible in one word (if possible)?
There are two important concepts here.
These are simplified answers to the original question, and does not change anything I wrote above.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
Endometriosis is an interesting disease - Hacker News
nine
A circuit breaker is similar, but is resettable.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
Samsung may soon open One UI 8 beta program for Galaxy S22 - SamMobile
In schematic diagrams this is the symbol for a fuse:
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part 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.
Power Rankings: Rocket Classic - PGA Tour
I post the exact comment here.
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.
Because the load is inductive, the current lags the voltage.(by a bit).
What's a joke you haven't used yet, but are dying to share?
For this case there are devices called Metal oxide varistors (MOV).
the problem then depends on "how fast does the fuse operate?".
[image of Common-mode choke]
Upcoming temporary full closure of South Academy Boulevard for widening project - KKTV
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
McDonald's is facing a harsh new reality as customer behavior shifts - TheStreet
Can the fuse protect the electronic devices from lightning instead of a surge protector.
This is where the MOV conducts again, and dissipated the energy.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
I tried the 6-6-6 walking challenge for a week and my step count skyrocketed - Fit&Well
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 the function of a fuse.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
What to know about Jeff Bezos' upcoming Venice wedding — and the protests against it - NPR
(Dc diagram shown, AC is similar).
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
What does a fuse do?
Samsung warns millions to activate this important One UI security feature - Sammy Fans
This is where this question deviates from being a 'generic' question, and becomes more specific.
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 bolt then partially travels down the line to your home.
NCAA approves multiple major rule changes in men's college basketball - On3.com
So, the voltage could go up to 500 volts, and the fuse will not open up.
At least they know the answer if they wanted it.
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.
The third is lightning and “how it gets conducted into a home.”
what exactly is a ‘surge’ protector?
Now when you have a certain ac resistance, then a current flows in a loop.
Upvotes:
“ 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”
so, what happens?
The MOV will conduct when the voltage exceeds 50% of line voltage.
It also is a device that limits the change in current flow.
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.
A fuse is a non-resetable over current circuit protector.
but this device (an Inductor) … impedes the rapid changes in the current.
At one ohm, the resistor has a maximum of 1 watt power.
This is 'the assistant's answer'
This one hit behind the barn.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
It seems Mohan does not understand the difference between a comment and an Answer.
Barnstars:
An AC voltage/ current source, and an ac inductive load.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
One
This is the picture of an electronic coil of wire wound around a core of magnetic material.
There are three different concepts here that are getting confused.
2024–10–14 [Omar Gharbi Omar Gharbi ]
a photo is worth a thousand words.
This device then solves the entire problem.
2024–10–10[John johnson John Johnson ]
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
Edit 2024–10.
He then asserts :
But it can get overloaded, and no longer works.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
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.
One is “what exactly is in a ‘surge protector’ ? ”
These devices are installed between the “hot” and “neutral” and protective ground.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
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.
2024–10–16 [ OO OLAOYE OYEBODE ]