The Importance of PV and Battery Isolator Switch in a Solar Power System

[@JFLegaspi]

Please READ! For those of you who know the difference between an isolator switch and a circuit breaker, regarding functions, how it works, etc.. however, in this scenario (solar power setup), it is theory against the actual application. I also have experienced the same thing as mentioned in this video. I have seen it with my own eyes, a PV circuit breaker burned just by switching it on and off regardless of its right and properly calculated rating and installation. Watch it here, Solar System Circuit Breaker DC Isolator - Know The Dangers! kzbin.info/www/bejne/nKite5V-hN-Doas

[@SolarMinerPH]

Hello po sir Jf. You mentioned on 5:50 na ioff muna ang isolator switch before the breaker. Mas maganda po na ioff muna ang breaker 1st before the isolator switches dahil designed ang mga breakers to break under load. Much safer way is to disconnect your loads before turning off the breakers. Yun mga isolator switch po ay wala silang arc quenching mechanism kaya posible po silang masunog when disconnected under load. Gaya po nyang battery isolator if you open it you wil see that it is just a switch and if disconnected under load mag aarc po sya at magkakaroon ng burn marks same sa pv isolators. may specs din ako nabasa for PV isolators na they are not recommended to be disconnected under load. The isolators is only used to make sure that the system is isolated so it is safe when you need to do work on your system.

[@JFLegaspi]

Tama, Salamat sa correction, and I stand corrected. I was focused more on doing the maintenance stuff. 😊🙏 Kapag may spare time ka, subukan mo lang panoorin to, at nangyari na din yan sa isa sa mga na-installan ko na maliit na summer house. kzbin.info/www/bejne/nKite5V-hN-Doas

[@boybakala9677]

If kailangan din pala ioff muna yung breaker dahil hindi maganda i off ang isolator switch under load, what is the point of isolator switch? Na coconfused lang ako

[@jbangz2023]

" big reason NOT to use a circuit breaker as a disconnect switch is a question of endurance. Disconnect switches are designed for a high number of operations, how many times the disconnect switch is turned on and off . Circuit breakers are typically not rated for nearly the same amount of operations."

[@jovetmaniebo3904]

Always practice "Don't disconnect under Load" para tumagal ang ating mga MCB at disconnect switch

[@SeedFingerBoards]

Salamat Sir. May isolator switch lahat ng system ko. Malaking tulong sya for maintenance and troubleshooting.

[@JFLegaspi]

Wala pong anuman 😊👍

[@fritzeph6550]

Thanks!

[@JFLegaspi]

Salamat din po sa pang-kape. Cheers! ☕️👍

[@fritzeph6550]

@@JFLegaspi Pasensya na po sa kaunti kong naibigay. Kulang pa yan sa knowledge nyo na binabahagi 😃.

[@albertreniva8371]

Agree ako sa mga advise ni sir JF.. ang paggamit sa mga safety device ay dpt gawing practice mapa small man o large set up.. gawin nating standard ang safety.. 👍

[@JFLegaspi]

😊👍

[@jonathantamayo8105]

Salamat sa info sir! Dont skip adds bilang tulong na din

[@litoflorida6110]

Salamat po sa paliwanag sir jf

[@JFLegaspi]

😊🙏

[@anethemia7857]

Slamat sa idea sir jf. Alwys watchng from province of cordova.

[@JFLegaspi]

😊👍

[@daxsoliveres9584]

Salamat sir sa clear info..mabuhay kayo

[@JFLegaspi]

Wala pong anuman at salamat din po.

[@papanimskusina3839]

Very informative sir JF.. Godbless.

[@JFLegaspi]

😊🙏☝️

[@MarioIISalen]

Meron din po bang arc extinguisher ang mga pv at battery isolator?

[@AlbertAmay-z6g]

Salamat po sir jf. Sir tanong ko rin po sana pwede mg request po ng tutorial about solar string blocking diode ano ang kahalagahan at pano po ikabit.Maraming salamat at God Bless you po.

[@raymartsilvala6465]

Thanks Po prof jf. 😊

[@JFLegaspi]

Wala pong anuman. 😊👍

[@mopikozz]

Sorry could not understand the language, but is your recommendation to use a Battery Isolator rather than a DC circuit breaker?

[@jerveeetorma5740]

Good day sir JF! F nakakaroon n ng arching ang CB ng Battery at PV need na po talaga siya palitan? Follow up question sir f meron ka 48V setup tapus 2 sets siya 200AH ang bawat battery in total 400AH siya pwde na ba palitan siya ng 40 na MCCB type? Thanks in advance...

[@dudzqueldano5214]

Prof tanong lang po. May 2 string of panel pwede ba 1 isolator switch lang para sa 2 string at parallel connection. Salamat sa sagot...

[@eugeneesguerra3420]

Sir JF, di po ba mas maganda na ilagay ang dc spd just after pv and before isolator switch para po kht i-off ang isolator ay protected pa rin ng spd ang pv?

[@JFLegaspi]

Tama po at binaggit ko na din po yan sa isang video tutorial ko. 😊👍

[@eugeneesguerra3420]

Salamat uli ng marami.

[@rodelvaldez9038]

Pa shout out sir sa nxt video from rizal,kalinga po ako maraming salamat

[@JFLegaspi]

😊👍

[@christiansarmiento3467]

Sir Jf Tanong ko lang po okay lang po magkaparehas ang amperes ang PV switch and DC breaker from Solar Panel?

[@JFLegaspi]

May kalkulasyon po yan na dapat sundin. May mga tutorials po ako kung paano.

[@dannybalisi6744]

gd day po sir jf, ask kolang po sir, ilang amps kaya na isolator switch ang kaylangan ko sa 5pcs na 200w in series connection VMP 18.5 imp 10.82 po sir. thank you po sir. sa tutorials nyo po ang dami konang napanood na videos nyo sir thanks po sa mga tutorials po. at salamat din po sa LPP sir sa fb don na ako natuto sir. thanks po at God Bless po.

[@JFLegaspi]

Good day. Mababa lang naman po ang Imp dahil naka-series ang connection ng mga solar panels. Yan pong nasa video ay pwede. May buy links sa video description.

[@mheldomdom7423]

panood po sir

[@kuyajhonmananghaya2582]

thank u sir

[@JFLegaspi]

😊👍

[@oseng0010]

👍👍👍

[@arnelalburo9496]

Boss yong dc isolator switch na 32a kaya nya ba yong 40a na solar panel

[@JFLegaspi]

Dapat 50A pataas ang rating ng isolator switch na gamitin 😊👍☕

[@oseng0010]

Prof pagdating naman po sa ac load? Inverter to load. Ano po dapat gamiting switch? Kapag wala kasi ako sa bahay pinapatay ko ang breaker ko papuntang load.

[@JFLegaspi]

Meron din pong AC isolator switch na nabibili. 😊👍

[@jonaslagarde1910]

SIR JF, may tanong lang po ako tungkol sa NEUTRAL at LINE [ N ] at [ L ], ito po ba ang positive at negative??? may DIY po ako na ang ginamit kong idea ay yong demo mo.Naka bili kas akong WATT METER na neutral at line, saka po hindin sya naka align sa negative positive kong baga mis-match...salamat po,sana pakisagot naman po...

[@JFLegaspi]

Ang L (Line) at N (Neutral) hindi yan symbol for DC pang AC yan. Ang symbol ng DC ay - (negative) at + (positive).

[@jonaslagarde1910]

salamat po sir JFsa sagot mabuhay po kayo....@@JFLegaspi

[@josephjohnrobles8074]

Prof tanong lang po, halimbawa po 1 PV 200W lang, okay na po bang DC Circuit Breaker nalang? May arcing pa rin po ba yun? thanks po

[@JFLegaspi]

Meron naman exception sa maliliit na setup, pero personal na desisyon mo kasi yan. 😊👍☕️

[@josephjohnrobles8074]

Maraming salamat po@@JFLegaspi

[@humbeym9069]

question lang po may fuse ba ang PV isolator sa loob? pano pag pumutok na ung fuse palit isolator na po ba or palit fuse lang?

[@JFLegaspi]

Walang fuse ang isolator switch… 😊

[@mopikozz]

@@JFLegaspi so what happens if there is a spike or fault? the isolator does not shutown like a circuit breaker?

[@jovetmaniebo3904]

​@@mopikozzIsolator is just a disconnecting device. It won't trip or shutdown the line kapag may fault or short circuit. Trabaho ng MCB ang trip ng line kapag may overcurrent or short current. SPD naman kapag may surge voltage na related sa indirect lightning or just voltage spike/surge

[@jonaslagarde1910]

A