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?
14.06.2025 21:39
It also is a device that limits the change in current flow.
2024–10–14 [Omar Gharbi Omar Gharbi ]
He then asserts :
What are some disadvantages of living in rural areas? What are the advantages?
What does a fuse do?
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.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
Since the Brits can't steer their oil tanker, what makes them think they can take on Russia?
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.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
a photo is worth a thousand words.
Is it possible for the AfD to ever win the chancellorship in Germany?
what exactly is a ‘surge’ protector?
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.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
This device then solves the entire problem.
[image of Common-mode choke]
These are simplified answers to the original question, and does not change anything I wrote above.
Why am I sweating so much at night even though my room is really cold?
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
Edit 2024–10.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
In your opinion, who is the most overrated singer/band/artist in modern music history and why?
The other is “what does a “fuse” do?”
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
He then describes the function of a fuse.
Has anyone been spanked by their parents after becoming an adult?
This one hit behind the barn.
What is lightning?
It seems Mohan does not understand the difference between a comment and an Answer.
One is “what exactly is in a ‘surge protector’ ? ”
Upvotes:
An AC voltage/ current source, and an ac inductive load.
What’s the craziest thing you’ve heard pretending to be asleep?
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
What does success really mean to you? Is it about happiness, money, or something else?
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
so, what happens?
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
If you were a writer for HBO, how would you rewrite the final season of Game of Thrones?
This is where the MOV conducts again, and dissipated the energy.
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?
There are three different concepts here that are getting confused.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
but I think this circuit , shows a few more pieces.
The third is lightning and “how it gets conducted into a home.”
the problem then depends on "how fast does the fuse operate?".
At one ohm, the resistor has a maximum of 1 watt power.
But it can get overloaded, and no longer works.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
nine
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
Now when you have a certain ac resistance, then a current flows in a loop.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
“ 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”
This is where this question deviates from being a 'generic' question, and becomes more specific.
[old diagram got deleted by accident]
A fuse is a non-resetable over current circuit protector.
Because the load is inductive, the current lags the voltage.(by a bit).
The MOV will conduct when the voltage exceeds 50% of line voltage.
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.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
I post the exact comment here.
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.
First Sentence:
2024–10–10[John johnson John Johnson ]
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.
A circuit breaker is similar, but is resettable.
So, the voltage could go up to 500 volts, and the fuse will not open up.
For this case there are devices called Metal oxide varistors (MOV).
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
At least they know the answer if they wanted it.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
There are two important concepts here.
Here is a simplified AC power diagram.
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 is 'the assistant's answer'
but this device (an Inductor) … impedes the rapid changes in the current.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
These devices are installed between the “hot” and “neutral” and protective ground.
Barnstars:
(Dc diagram shown, AC is similar).
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
One
But… the neutral is now “floating” because of the 1 ohm resistance.
The bolt then partially travels down the line to your home.
2024–10–16 [ OO OLAOYE OYEBODE ]
eight
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
He then describes Rainy Season and Lightning.
In schematic diagrams this is the symbol for a fuse: