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?
13.06.2025 03:08
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
Because the load is inductive, the current lags the voltage.(by a bit).
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
These are simplified answers to the original question, and does not change anything I wrote above.
Upvotes:
He then describes the function of a fuse.
AI-Focused Apple Music Reboot Said to Be in the Works - MacRumors
Can the fuse protect the electronic devices from lightning instead of a surge protector.
What does a fuse do?
2024–10–16 [ OO OLAOYE OYEBODE ]
Here is a simplified AC power diagram.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
One
Edit 2024–10.
eight
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.
What thing happened to you as a child that you haven’t let go of to this day?
[image of Common-mode choke]
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.
This is where the MOV conducts again, and dissipated the energy.
Astronomers discover most powerful cosmic explosions since the Big Bang - Space
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
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 one hit behind the barn.
23andMe Sets New Auction With $305 Million New Bid From Ex-CEO - Bloomberg
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
For this case there are devices called Metal oxide varistors (MOV).
An AC voltage/ current source, and an ac inductive load.
There are three different concepts here that are getting confused.
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.
the problem then depends on "how fast does the fuse operate?".
Why the American Diet Is So Deadly? A Silent Killer Quietly Harming Millions - Indian Defence Review
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.
But… the neutral is now “floating” because of the 1 ohm resistance.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
Yuen: When cancer struck a second time, she found ‘euphoria’ - Star Tribune
I post the exact comment here.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
Now when you have a certain ac resistance, then a current flows in a loop.
UFC 316 results: Kayla Harrison finishes Julianna Peña, squares off with Amanda Nunes - MMA Junkie
This is where this question deviates from being a 'generic' question, and becomes more specific.
In schematic diagrams this is the symbol for a fuse:
There are two important concepts here.
Raw Milk Is Trending — Here's Why Doctors Are Seriously Concerned - BuzzFeed
At least they know the answer if they wanted it.
a photo is worth a thousand words.
The MOV will conduct when the voltage exceeds 50% of line voltage.
Is using tech to track or monitor your partner’s activities a sign of love, insecurity, or control?
so, what happens?
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
but this device (an Inductor) … impedes the rapid changes in the current.
It also is a device that limits the change in current flow.
First Sentence:
What is lightning?
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
But it can get overloaded, and no longer works.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
So, the voltage could go up to 500 volts, and the fuse will not open up.
At one ohm, the resistor has a maximum of 1 watt power.
The bolt then partially travels down the line to your home.
These devices are installed between the “hot” and “neutral” and protective ground.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
He then asserts :
2024–10–14 [Omar Gharbi Omar Gharbi ]
A circuit breaker is similar, but is resettable.
He then describes Rainy Season and Lightning.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
[old diagram got deleted by accident]
(Dc diagram shown, AC is similar).
2024–10–10[John johnson John Johnson ]
A fuse is a non-resetable over current circuit protector.
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.
One is “what exactly is in a ‘surge protector’ ? ”
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
This is 'the assistant's answer'
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
The other is “what does a “fuse” do?”
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
“ 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”
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
This device then solves the entire problem.
The third is lightning and “how it gets conducted into a home.”
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
nine
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?
Barnstars:
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
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.
It seems Mohan does not understand the difference between a comment and an Answer.
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
what exactly is a ‘surge’ protector?
but I think this circuit , shows a few more pieces.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”