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 03:09
At one ohm, the resistor has a maximum of 1 watt power.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
I post the exact comment here.
the problem then depends on "how fast does the fuse operate?".
“ 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”
nine
Is it possible to run away from home at 16? What are some essential items to bring for survival?
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
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.
(Dc diagram shown, AC is similar).
Powerful solar telescope unveils ultra-fine magnetic 'curtains' on the sun's surface - Space
But it can get overloaded, and no longer works.
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
What is lightning?
In schematic diagrams this is the symbol for a fuse:
The third is lightning and “how it gets conducted into a home.”
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
Was Jimmy Carter a good President of the United States?
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
For this case there are devices called Metal oxide varistors (MOV).
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
It seems Mohan does not understand the difference between a comment and an Answer.
One
The European Central Bank is almost guaranteed to cut rates. Here's what could happen next - CNBC
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
He then describes Rainy Season and Lightning.
One is “what exactly is in a ‘surge protector’ ? ”
What does a fuse do?
Upvotes:
eight
What are the popular niches to talk about as a content creator on the social media platform?
He then asserts :
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
Because the load is inductive, the current lags the voltage.(by a bit).
Why do men like low maintenance women?
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?
The bolt then partially travels down the line to your home.
Rick Pitino 'Feels Bad' For Tom Thibodeau After Knicks Firing - Sports Illustrated
2024–10–16 [ OO OLAOYE OYEBODE ]
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.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
What caused North Korea to go poor when at first it was rich?
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.
Here is a simplified AC power diagram.
This is 'the assistant's answer'
1-In-100,000 Chance Earth Could Be Yeeted Out Of The Solar System By A Passing Star - IFLScience
Barnstars:
But… the neutral is now “floating” because of the 1 ohm resistance.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
It also is a device that limits the change in current flow.
[old diagram got deleted by accident]
A fuse is a non-resetable over current circuit protector.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
The MOV will conduct when the voltage exceeds 50% of line voltage.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
The other is “what does a “fuse” do?”
A circuit breaker is similar, but is resettable.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
First Sentence:
Now when you have a certain ac resistance, then a current flows in a loop.
what exactly is a ‘surge’ protector?
There are two important concepts here.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
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.
There are three different concepts here that are getting confused.
but this device (an Inductor) … impedes the rapid changes in the current.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
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 least they know the answer if they wanted it.
These are simplified answers to the original question, and does not change anything I wrote above.
These devices are installed between the “hot” and “neutral” and protective ground.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
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.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
2024–10–14 [Omar Gharbi Omar Gharbi ]
2024–10–10[John johnson John Johnson ]
[image of Common-mode choke]
So, the voltage could go up to 500 volts, and the fuse will not open up.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
This device then solves the entire problem.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
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.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
Edit 2024–10.
but I think this circuit , shows a few more pieces.
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.
so, what happens?
This one hit behind the barn.
a photo is worth a thousand words.
He then describes the function of a fuse.