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 07:36
Can the fuse protect the electronic devices from lightning instead of a surge protector.
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?
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
Jason Sudeikis Remembers Uncle George Wendt as “an Incredible Influence” - The Hollywood Reporter
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.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
For this case there are devices called Metal oxide varistors (MOV).
Sweden’s Maja Stark wins U.S. Women’s Open for first major championship - NBC Sports
A fuse is a non-resetable over current circuit protector.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
a photo is worth a thousand words.
The MOV will conduct when the voltage exceeds 50% of line voltage.
eight
He then asserts :
Would you let your partner cheat on you every now and again?
This one hit behind the barn.
I post the exact comment here.
It seems Mohan does not understand the difference between a comment and an Answer.
Have you ever been humiliated in front of a group of girls and enjoyed it?
[image of Common-mode choke]
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
(Dc diagram shown, AC is similar).
Over-the-counter supplement could prevent heart disease in type 2 diabetes patients - Medical Xpress
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.
One is “what exactly is in a ‘surge protector’ ? ”
This is where the MOV conducts again, and dissipated the energy.
Because the load is inductive, the current lags the voltage.(by a bit).
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
But it can get overloaded, and no longer works.
For the first time, an external factor turns a male mammal into a female - EL PAÍS English
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.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
2024–10–10[John johnson John Johnson ]
Can a mother forget her child after she puts him or her up for adoption?
At one ohm, the resistor has a maximum of 1 watt power.
First Sentence:
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
Earth’s oldest living creature unearthed—dating back 700 million years - The Brighter Side of News
Here is a simplified AC power diagram.
In schematic diagrams this is the symbol for a fuse:
But… the neutral is now “floating” because of the 1 ohm resistance.
When you visit a store, do you go to shop or buy?
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
2024–10–14 [Omar Gharbi Omar Gharbi ]
This device then solves the entire problem.
What great song was "ruined" once you really listened to the lyrics?
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
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.
Now when you have a certain ac resistance, then a current flows in a loop.
He then describes Rainy Season and Lightning.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
There are two important concepts here.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
but I think this circuit , shows a few more pieces.
“ 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”
These are simplified answers to the original question, and does not change anything I wrote above.
A circuit breaker is similar, but is resettable.
An AC voltage/ current source, and an ac inductive load.
Edit 2024–10.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
There are three different concepts here that are getting confused.
Barnstars:
The other is “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.
The third is lightning and “how it gets conducted into a home.”
nine
the problem then depends on "how fast does the fuse operate?".
so, what happens?
It also is a device that limits the change in current flow.
At least they know the answer if they wanted it.
what exactly is a ‘surge’ protector?
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
[old diagram got deleted by accident]
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.
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.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
but this device (an Inductor) … impedes the rapid changes in the current.
Upvotes:
One
These devices are installed between the “hot” and “neutral” and protective ground.
What does a fuse do?
This is 'the assistant's answer'
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, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
2024–10–16 [ OO OLAOYE OYEBODE ]
This is where this question deviates from being a 'generic' question, and becomes more specific.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
He then describes the function of a fuse.
So, the voltage could go up to 500 volts, and the fuse will not open up.
The bolt then partially travels down the line to your home.
What is lightning?
2024–10–11 [Victor Olarewsju Victor Olarewaju ]