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?
09.06.2025 01:54
Barnstars:
For this case there are devices called Metal oxide varistors (MOV).
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
There are two important concepts here.
(Dc diagram shown, AC is similar).
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).
[old diagram got deleted by accident]
Discover Why These 2025 Milky Way Photos Are Shaking the Astrophotography World - The Daily Galaxy
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
One
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.
What is your review of The Office (U.S. TV series)?
Edit 2024–10.
A fuse is a non-resetable over current circuit protector.
These devices are installed between the “hot” and “neutral” and protective ground.
It also is a device that limits the change in current flow.
It seems Mohan does not understand the difference between a comment and an Answer.
There are three different concepts here that are getting confused.
Why are men so attracted to big breasts?
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.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
Any straight men had a gay experience in the past? What was it and how did you feel?
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 it can get overloaded, and no longer works.
Upvotes:
How can people balance religious beliefs with seeking professional mental health care?
but I think this circuit , shows a few more pieces.
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.
Tim McGraw's daughter Gracie McGraw comes out as queer: 'Happy freaking Pride' - USA Today
What is lightning?
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
2024–10–14 [Omar Gharbi Omar Gharbi ]
At least they know the answer if they wanted it.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
This is 'the assistant's answer'
What is one thing which you cannot stop however hard you try?
a photo is worth a thousand words.
2024–10–16 [ OO OLAOYE OYEBODE ]
These are simplified answers to the original question, and does not change anything I wrote above.
[image of Common-mode choke]
what exactly is a ‘surge’ protector?
nine
An AC voltage/ current source, and an ac inductive load.
This is where this question deviates from being a 'generic' question, and becomes more specific.
A circuit breaker is similar, but is resettable.
Here’s where to get free doughnuts on National Donut Day 2025 - Fortune
But… the neutral is now “floating” because of the 1 ohm resistance.
the problem then depends on "how fast does the fuse operate?".
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.
What can you do if you are a full-grown adult, but never experienced being a child?
The third is lightning and “how it gets conducted into a home.”
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
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.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
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.
The other is “what does a “fuse” do?”
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
He then describes Rainy Season and Lightning.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
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?
2024–10–10[John johnson John Johnson ]
This is where the MOV conducts again, and dissipated the energy.
eight
In schematic diagrams this is the symbol for a fuse:
This device then solves the entire problem.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
What does a fuse do?
This one hit behind the barn.
At one ohm, the resistor has a maximum of 1 watt power.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
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.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
so, what happens?
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:
The bolt then partially travels down the line to your home.
Here is a simplified AC power diagram.
So, the voltage could go up to 500 volts, and the fuse will not open up.
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.
“ 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”
One is “what exactly is in a ‘surge protector’ ? ”
Now when you have a certain ac resistance, then a current flows in a loop.
He then asserts :
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.