HOW Surge Protectors Work, HOW To Test MOV's, & HOW To Install A Surge Protector!

Learn EXACTLY how surge protectors work to prevent damage to your valuable electronics and appliances during a lightning storm, see the component used to make them, as well as a few demonstrations and installation instructions for a whole house surge protector. Enjoy the video!
My insulation tester: s.click.aliexp...
Surge Protectors Here: amzn.to/3duY3Lu
(Aliexpress & Amazon Affiliate Links ~ Channel will receive a small cut from product sales)
CLICK HERE for my extensive video playlists!
/ electronicsnmore
Support the creation of new videos on my channel by watching ads placed on my videos, shopping for items shown in my videos(No additional cost to you) at the Banggood & Aliexpress links provided. You can also support my work by making a Paypal donation. All donations, big or small, are greatly appreciated since many of the videos I produce don't go viral and make all the hours of work I put into them worthwhile. Thank you!
Aliexpress:s.click.aliexp...
Amazon: amzn.to/2Lg902l
Banggood: bit.ly/2COi2P0
Banggood Flash Deals: bit.ly/2HBu9oq
(Affiliate Links)
Paypal link: paypal.me/elect...
Bobby Tectalabyss: Thanks for your generous $5 donation!
Jeff Barr: Thanks for your generous $25 donation!
xrayjim: Thanks for your generous $25 donation!
Ryan Pedersen: Thanks for your generous $20 donation!
Wanda Thomas: Thanks for your generous $50 donation!
Peter Hines: Thanks for your generous $10 donation!
Verinspec: Thanks for your generous $10 donation!
Jason Enright: Thanks for your generous $6 donation!
Diega Kendrick: Thanks for your generous $10 donation!
Technovative Products: Thanks for your generous $5 donation!
Jeff Karrow: Thanks for your generous $5 donation!
Iven Brown: Thanks for your generous $5 donation!
Thomas Herrick: Thanks for your generous $20 donation!
Richard Frisch: Thanks for your generous $10 donation!
Bruce Howard: Thanks for the generous $5 donation!
Jayantha Gabbalage: Thanks for the generous $20 donation!
Joseph Vanderbosch: Thanks for the generous $10 donation!
Theodosia Gougousi: Thanks for the generous $10 donation!
Ric Dezorzi: Thanks for the generous $5 donation!
Randy Schader: Thanks for the generous $5 donation!
Hong Lin: Thanks for your generous $20 donation!
Scott Jones: Thanks for your generous $20 donation!
Jim Obester: Thanks for your generous $10 donation!
John Cipriano: Thanks for your generous $15 donation!
Robert Kunzmann: Thanks for your generous $10 donation!
Thanks For Watching!
**If you enjoy watching my videos, then be sure to SUBSCRIBE & click the notification bell(set to "ALL"), SHARE links to my videos with others, rate "THUMBS UP", and check out my extensive video playlists for many other videos of interest to you. Doing so helps to ensure that many more videos will be uploaded to my YT channel in the future.**

[@ProjectFarm]

Great topic and great video!! Thank you!

[@electronicsNmore]

Thank you! Glad you enjoyed the video. Looking forward to yours today!

[@JT-lq4yd]

In addition to my computer and TV, I am also using surge protectors on the refrigerator, washer and dryer.

[@dougdiller2906]

I worked in the oil field & we had surge protection on our well control panels (480V 3Ø. It wasn't unusual for lightning to pop the surge protector & leave a hole in the can. It didn't vaporize the wires. So the surge protection can still be HOT after a lightning strike.

[@100vg]

Very nearby lightning strikes can make the 120VAC Grounded wire go up to Millions of Volts, which is generally Zero Volts. With Ground being that high, 120VAC looks like Zero Volts compared, so the lightening strike Voltage comes in backwards to the two phases of city power. A Surge Protector Clamps the Voltage to about 300V which does help prevent damage to sensitive circuits. The bad thing about Surge Protectors, which most people don't know, is that they are typical only good for one very nearby lightening strike. They can and do go bad when the Voltage is that high. The Surge Protector will still pass 120VAC, but will no longer protect against lightening strikes. All Surge Protectors in the house or business would have to be tested, but most people won't have your generator or even know to have to test them. This is for the extension cord breakout outlet type, but you'd have to know if the whole house version can actually withstand that or not. A claim is one thing, but actual performance is another. But it was a great detailed explanation of how they operate and how to install a Whole-House Surge Protector!

[@electronicsNmore]

Yes, the unit I installed has an indicator LED to let you know if/when to replace it. Thanks for watching!

[@100vg]

@@electronicsNmore That's very cool and so is that device. I didn't know whole-house surge protectors existed. Thanks for the video and reply!

[@andys5203]

Awesome video as usual. I wish you were my teacher when I was in school. Cheers.!!

[@electronicsNmore]

Glad you enjoyed the video, and Thanks!

[@Funkydood]

Thanks for the info', sir!!!

[@electronicsNmore]

You're welcome!

[@Caffein780]

The was an extremely clear description of a surge protection device...thank you

[@Sylvan_dB]

Nice! I've wondered about testing MOVs. In my main panel and solar combiners I've installed a couple of large Silicon Oxide Varistors (Delta LA 302 IIRC) which are supposedly self-healing. But I have a lot of point-of-use MOVs I need to test.

[@electronicsNmore]

SiC varistors are really good. Thanks for watching!

[@mahmoudbitar6571]

using the hand electric generator is the best way to explain how the varistor works to limit the voltage spikes, Many thanks!!

[@karrycrasto2010]

Excellent 👌

[@electronicsNmore]

Glad you enjoyed the video Karry!

[@sapelesteve]

As usual, awesome demo & explanation eNm! Now I have to share this video with my stepson who is an electrician. Thanks! 👍👍👏👏

[@brianreeves4309]

Awesome video man. Very informative. Unlike most people on the internet

[@electronicsNmore]

Glad you enjoyed the video Brian! Be sure to check out my extensive video playlists and share my channel with others. Thank you

[@a_cool_daddy2918]

Great demonstration. Thank you for the video.

[@dennisqwertyuiop]

great demo

[@Phil-D83]

Also protects against surges inside the house caused by other devices

[@drawtheword7590]

still doing awesome videos i see thanks

[@jp040759]

Yes Great topic. I was going to buy an insulation tester to test MOVs to see when they break down to see if they are still calibrated/operational/usable. I did some research and thought I could build a DIY tester. I was going to rig up a microwave oven transformer to a full wave rectifier to generate my 1000 volt DC source. I guess I could just use the high voltage rectifier that came with microwave for half wave rectifier since there is no real load. I was going to slowly increase voltage on primary windings of MOT transformer with my variac and have a current limiting resistor in series with its DC output. I want to control the output voltage so as to NEVER exceed 1000 volts DC since all of my gear can't tolerate these voltage levels. I also wanted to use this device to test unknown rectifiers to see what their actual reverse breakdown voltages are. I have heard that some rectifiers are actually labeled with lower voltage levels than they actually are built for. Thanx for the great content.

[@juperrr]

Golden as always 🤗

[@DunOpondo]

How can I test the mov to know when it's going bad and is their anything I can add to the circuit as a simple indicator for such?

[@georgematos1086]

Does it make a difference if you put it on a lower breaker other then 1&3, I like it on 1&3 but I was told it didn't matter,

[@electronicsNmore]

Good question. I think it would make a difference, but not too much because the bus bars are fairly wide and thick.

[@Edmorbus]

Thanks for sharing

[@darexdarex]

Just got a lightning strike alert as I was watching your vid. We get hundreds per day here in St. Pete.

[@electronicsNmore]

I lived in Sarasota years back, and there was a lot of lightning, far more than on the east coast of South Florida.

[@Quickened1]

Hey Doug, I was just thinking about you for some reason during Ian. Hope you faired well and avoided most of the mess!? 🙏

[@BVN-TEXAS]

Checking resistance on a device at the same time you are applying voltage to it is a no no. How is the meter checking resistance with a voltage being shoved into it.

[@patriciacathey2521]

Show me a video on how to install plug

[@TheRadiogeek]

Can the MOV be distorted or go bad over time from repeated strikes? If so how would you know? Thanks.

[@electronicsNmore]

Yes. Usually they'll have a spot on them blown out.

[@TheRadiogeek]

@@electronicsNmore Thank you.

[@eddiebytler8713]

I have long mostly understood MOVs, but one thing unsure is, ok I get hot to ground, but why do most powerboards also go hot to neautral, Is this because when it breaks down and links them, both legs are temporarily at the same potential thereby theoretically making it safe for the device?

[@cdrive5757]

Thanks for the MOV tutorial. I have two questions though. ... (1) Is there a reason that a (hand cranked) dynamo was used instead of a common bench supply? (2) I'm doubtful that the internal resistance of the Ammeter (DVM) would have any significant effect on the current measured. At least Not with a 270K resistor in series with it, as you have here. Did I misinterpret you? Wakodahatchee Chris

[@ededmonds8792]

Thanks Electric 🚹.

[@WontSeeReplies]

Could I assume an ‘EMP Shield’ wouldn’t protect my truck if an EMP targeted it?

[@ComputerGuyAndy]

Any reason I might need a surge protector if my electricity is underground?

[@electronicsNmore]

If you have a Transformer sitting on a pad on the ground then there's always a chance that lightning can strike the utility pole nearby that supplies power to your Transformer

[@ComputerGuyAndy]

@@electronicsNmore so then I definitely should protect it? I thought being underground couldn't make it anymore grounded but I didn't think about lightening hitting the box. I'm going to check to see if you linked it in the comments. Thanks again, I still get my best 'useless information' from you 😂

[@melog72]

The US... A third world country ... Unbelievable

[@darthbubba866]

Could you compare the MOVs to TranZorbs and gas discharge tube arresters, please? P.S.: Great video, as always!

[@electronicsNmore]

I happen to have 5 gas tube arrestors on hand. :-)

[@ThinKkBIGG]

@@electronicsNmore And serie mode ;)

[@laryangel4082]

O

[@C_C_SEA]

💯🖖

[@jamess1787]

TIL: only buy things that support international residential voltages. Oh wait, they should be a no-brainer!