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?

OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.

This device then solves the entire problem.

So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.

Germany: Cologne evacuation lifted after WWII bombs defused - dw.com

It also is a device that limits the change in current flow.

This is where the MOV conducts again, and dissipated the energy.

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.

At least 32 Zotac RTX 5090 buyers at Micro Center find only backpacks inside the boxes - TechSpot

[old diagram got deleted by accident]

This one hit behind the barn.

When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.

What is the reasoning behind conspiracy theorists claiming that there were multiple shooters involved in the JFK assassination?

There are three different concepts here that are getting confused.

An AC voltage/ current source, and an ac inductive load.

What does a fuse do?

Inside ‘Inside the NBA’ Transition to ESPN - Front Office Sports

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 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.

Washington Post Planning to Bring in ‘Nonprofessional Writers’ Coached by an AI Editor With a ... - Mediaite

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.

Here is a simplified AC power diagram.

(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).

Legion of 50 strong as Seahawks reveal Top 50 players in franchise history - Field Gulls

Upvotes:

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

In schematic diagrams this is the symbol for a fuse:

Oldest depiction of the Milky Way galaxy discovered in an Egyptian sarcophagus - Earth.com

He then describes the function of a fuse.

(Dc diagram shown, AC is similar).

If the nominal power is 4,000 watts then the current at 230volts is 16 amps.

Pro-AI Subreddit Bans 'Uptick' of Users Who Suffer from AI Delusions - 404 Media

the problem then depends on "how fast does the fuse operate?".

eight

Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.

Is it accurate to say that while Donald Trump has "America First" policy, the Democratic Party has "Other nations first" policy?

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

A circuit breaker is similar, but is resettable.

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?

What is the most gay experience with your dad?

But it can get overloaded, and no longer works.

Edit 2024–10.

So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.

A fuse is a non-resetable over current circuit protector.

One is “what exactly is in a ‘surge protector’ ? ”

It seems Mohan does not understand the difference between a comment and an Answer.

I post the exact comment here.

First Sentence:

Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.

The MOV will conduct when the voltage exceeds 50% of line voltage.

The other is “what does a “fuse” do?”

“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”

This is the picture of an electronic coil of wire wound around a core of magnetic material.

2024–10–14 [Omar Gharbi Omar Gharbi ]

“ 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”

so, what happens?

He then describes Rainy Season and Lightning.

nine

what exactly is a ‘surge’ protector?

He then asserts :

These are simplified answers to the original question, and does not change anything I wrote above.

Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.

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.

Barnstars:

At least they know the answer if they wanted it.

The bolt then partially travels down the line to your home.

This is where this question deviates from being a 'generic' question, and becomes more specific.

“ A fuse is a device which protects the (circuit) against overload and short circuit.”

One

Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".

And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.

2024–10–11 [Bobby Sanchez Bobby Sanchez ].

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.

There are two important concepts here.

so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.

2024–10–10[John johnson John Johnson ]

At one ohm, the resistor has a maximum of 1 watt power.

2024–10–16 [ OO OLAOYE OYEBODE ]

a photo is worth a thousand words.

For this case there are devices called Metal oxide varistors (MOV).

This is 'the assistant's answer'

Now when you have a certain ac resistance, then a current flows in a loop.

It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.

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.

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.

Because the load is inductive, the current lags the voltage.(by a bit).

[image of Common-mode choke]

Can the fuse protect the electronic devices from lightning instead of a surge protector.

but this device (an Inductor) … impedes the rapid changes in the current.

So, the voltage could go up to 500 volts, and the fuse will not open up.

But… the neutral is now “floating” because of the 1 ohm resistance.

But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).

These devices are installed between the “hot” and “neutral” and protective ground.

but I think this circuit , shows a few more pieces.