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?
12.06.2025 04:15
[image of Common-mode choke]
The third is lightning and “how it gets conducted into a home.”
Upvotes:
"D Gukesh Was Blindly...": Magnus Carlsen's First Reaction After Loss To Indian GM - NDTV Sports
Can the fuse protect the electronic devices from lightning instead of a surge protector.
eight
For this case there are devices called Metal oxide varistors (MOV).
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
Now when you have a certain ac resistance, then a current flows in a loop.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
Measles case confirmed in Allegan County, officials provide locations of exposure - WWMT
A circuit breaker is similar, but is resettable.
but I think this circuit , shows a few more pieces.
The bolt then partially travels down the line to your home.
I post the exact comment here.
what exactly is a ‘surge’ protector?
A fuse is a non-resetable over current circuit protector.
Disney to pay almost $439 million to take full control of streaming service Hulu - AP News
but this device (an Inductor) … impedes the rapid changes in the current.
[old diagram got deleted by accident]
It seems Mohan does not understand the difference between a comment and an Answer.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
This is 'the assistant's answer'
the problem then depends on "how fast does the fuse operate?".
Knicks' Decision to Fire Tom Thibodeau Was Brewing For 'Months' - Sports Illustrated
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
What is lightning?
The other is “what does a “fuse” do?”
These are the best new MacBook deals in June: options starting at $649 - 9to5Mac
He then asserts :
2024–10–16 [ OO OLAOYE OYEBODE ]
2024–10–10[John johnson John Johnson ]
Why do older people have a hard time using technology?
Edit 2024–10.
This is where this question deviates from being a 'generic' question, and becomes more specific.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
One
He then describes Rainy Season and Lightning.
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.
Is it okay for a wife who comes home from a date to tell her husband what she did?
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
What’s the weirdest phone call you have ever received?
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
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.
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?
President Trump kicked Zelensky out of the White House. Is it over for a deal?
One is “what exactly is in a ‘surge protector’ ? ”
2024–10–14 [Omar Gharbi Omar Gharbi ]
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 fuse is a device which protects the (circuit) against overload and short circuit.”
a photo is worth a thousand words.
This device then solves the entire problem.
These are simplified answers to the original question, and does not change anything I wrote above.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
(Dc diagram shown, AC is similar).
nine
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
At one ohm, the resistor has a maximum of 1 watt power.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
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.
He then describes the function of a fuse.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
This one hit behind the barn.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
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.
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.
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 MOV will conduct when the voltage exceeds 50% of line voltage.
These devices are installed between the “hot” and “neutral” and protective ground.
Barnstars:
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
An AC voltage/ current source, and an ac inductive load.
There are two important concepts here.
There are three different concepts here that are getting confused.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
“ 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”
But it can get overloaded, and no longer works.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
First Sentence:
Here is a simplified AC power diagram.
It also is a device that limits the change in current flow.
In schematic diagrams this is the symbol for a fuse:
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
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.
This is where the MOV conducts again, and dissipated the energy.
Because the load is inductive, the current lags the voltage.(by a bit).
But… the neutral is now “floating” because of the 1 ohm resistance.
What does a fuse do?
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
so, what happens?