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?
10.06.2025 10:04
Edit 2024–10.
(Dc diagram shown, AC is similar).
It seems Mohan does not understand the difference between a comment and an Answer.
Why is every human messed up in some way?
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
The bolt then partially travels down the line to your home.
This device then solves the entire problem.
Nicole Scherzinger and Sarah Snook win top prizes at Tony Awards - BBC
He then describes Rainy Season and Lightning.
But… the neutral is now “floating” because of the 1 ohm resistance.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
Why do I sweat so much at the gym?
In schematic diagrams this is the symbol for a fuse:
For this case there are devices called Metal oxide varistors (MOV).
[old diagram got deleted by accident]
What happened to The Simpsons deleted onscreen footage?
There are two important concepts here.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
One
Vice President JD Vance Just Delivered Incredible News to Bitcoin Investors - Yahoo Finance
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.
At one ohm, the resistor has a maximum of 1 watt power.
so, what happens?
He then asserts :
but I think this circuit , shows a few more pieces.
Here is a simplified AC power diagram.
Washington governor activates National Guard in search for accused killer, Travis Decker - KATU
What is lightning?
This is the picture of an electronic coil of wire wound around a core of magnetic material.
I post the exact comment here.
How was your JEE Advanced 2024 result?
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
Do many women shave their vaginas?
Upvotes:
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.
There are three different concepts here that are getting confused.
Ireland added to list of countries monitored by the U.S. for currency manipulation - Fortune
the problem then depends on "how fast does the fuse operate?".
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
The third is lightning and “how it gets conducted into a home.”
What are some dirty secrets of Indian (Bollywood, etc.) actors and actresses?
A fuse is a non-resetable over current circuit protector.
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.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
What was Easter day like for you as a child?
This is where this question deviates from being a 'generic' question, and becomes more specific.
At least they know the answer if they wanted it.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
This is 'the assistant's answer'
nine
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
“ 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”
Because the load is inductive, the current lags the voltage.(by a bit).
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?
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
2024–10–14 [Omar Gharbi Omar Gharbi ]
what exactly is a ‘surge’ protector?
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
It also is a device that limits the change in current flow.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
An AC voltage/ current source, and an ac inductive load.
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
One is “what exactly is in a ‘surge protector’ ? ”
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.
This is where the MOV conducts again, and dissipated the energy.
2024–10–10[John johnson John Johnson ]
First Sentence:
What does a fuse do?
These are simplified answers to the original question, and does not change anything I wrote above.
A circuit breaker is similar, but is resettable.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
[image of Common-mode choke]
but this device (an Inductor) … impedes the rapid changes in the current.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
a photo is worth a thousand words.
Now when you have a certain ac resistance, then a current flows in a loop.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
The MOV will conduct when the voltage exceeds 50% of line voltage.
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.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
These devices are installed between the “hot” and “neutral” and protective ground.
This one hit behind the barn.
The other is “what does a “fuse” do?”
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.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
But it can get overloaded, and no longer works.
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.
eight
He then describes the function of a fuse.
So, the voltage could go up to 500 volts, and the fuse will not open up.
Barnstars:
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
2024–10–16 [ OO OLAOYE OYEBODE ]