Those diodes were connected in parallel. Not sure how you faked it but you can’t test an individual diode in that case. You would have to remove and test each individually.
I don't think he faked it, just look at the diodes move when he probes them, this looks like a rather poor design and the top/bottom diodes were just making very little if any connection.
I have ever seen solar panel where the diodes were connected three series sets and then connected parallel.when ever I tested the diode when still on solar ,some shows open loop but after removing it from solar panel and tested it shows it is good. The problem is the solar giving out low current resulting in to low power output
great video I get the end point, few steps missed. you showed testing the string that was shorted, I guess you just missed the part where you should have shown individual testing on each bypass diode. people must remember if you change these the silver strip of the diode is the cathode side this always goes to positive side, current flows from anode to cathode. remember if replacing bypass diodes take into consideration of the desired voltage of a series pv system and the amount of amps flowing through these. 25% extra for amps or nearest option is advised, more is better for life of these.
He shorted the schotkey diodes dead shorting out a section of power cells. Those are bypass diodes that prevent shaded cells blocking current flow. You can't test each diode unless you remove leg connection.
Weldone engr. Thanks for this clip it will help me. I have a panel not charging. I thought its a big deal to fix with money and d stress. But with this I will go get diode. But what are the units of this diodes
having worked on some super shitty cheap solar panels (I'm looking at you Windy Nation) I can totally appreciate this beautiful piece of machinery those diodes are really easy to replace so soldering required, nice!
or belter said, if one diode is short then all diodes parralel with the faulty diode will be short also. you need to remove and test each diode individually.
Salam janb kesy haan ap umeed kerta huun ap keriyat say huun gay janb mujhy essi panal ki cables change kerni ha tu enn cables ko kesy change keron ga mein nay open kerny ki kafi kosish ki ha but open nahi ker sakya jis ki waja say cables chnge nahi hui han ap kindly ess ka tareqa tu batta deyn plz
yes, but now consider them in series-parallel connection; that is each two in series then combine the series into parallel. This will increase volatage and current. Ensure that the voltage of each solar panels are equal. Have your 24v charge controller with you.
Whats the rating of diodes in normal 250/260watts panels?...i have some poor performing panels at a remote location, i intend to visit the location soon and to attempt this repair, so want to go there with the diodes and not do a roundtrip twice
Where can I get me a 50 Amp solar panel with a charge control and something that can detect a short circuit. Can a 2,000w solar panel work for a jumpstarter to get more watts to power stuff ?
I am a little confused about the meter scale used and the connections as you seem to have no connection on the common connecter? For some measurements.
@@NaveedZahirCreativity no mate. meter is only rated to 10A you have set it on the 20ma scale but because you are using the 10A lead port it defaults to 10 amp scale.
good work, mera ap se ye sawal he ye br br khrab ho jata he joh cells he khatam ho jatay he koi es ka solution he joh jaldi khrab na ho , kue ka me bhot br cells change kr chuka ho , wire etc sab thek he es ka bawa jood khrab ho jati he cells phat jatay he
آپ کو اس بنیادی بات کا ہی نہی پتا کہ ڈائیوڈ کا اایمپئر کے ساتھ کوئ تعلق نہیں یہ صرف بیٹری سے ریورس کرنٹ کو سولر پلیٹ کی جانب جانے سے روکتے ہیں. A diode is a semiconductor device that essentially acts as a one-way switch for current. It allows current to flow easily in one direction, but severely restricts current from flowing in the opposite direction.
Putting parallel diodes !!! I expect better from German engineering. Putting six discrete diodes in parallel will almost alway not distribute current uniformly across the parallel diodes. First, the diodes have to be precisely matched.. Not likely with discrete diodes. If lucky the parts came from same wafer, preferably adjacent diode die from fabbed wafer location. Second, the parts have to be tightly heat sunk together so they are all at exactly same temperature. As diode heats up its forward voltage drop is reduced so it will take more of the current from other slightly cooler diodes, causing it to get hotter. Run-away effect causing hottest diode to take most of current and get even hotter. Leaded diodes provide poor heat sinking capability. For bypass diodes it is better to use TO220 or similar packaged diodes with additional metal (electrically isolated) heat sinking. Single heat sunk diode for each bypass diode. Packaged part with dual diode in single package okay to parallel as they are likely well matched and tied to same heat sink base of package. When a panel is partially shaded a bypass diode can have upwards of 5 watts of heat to dissipate. A leaded part gets blistering hot. This panel is unusual with five bypass sections. Looks like done across short row pairs instead of long column pairs. Better for reducing drop out for partial shading as less series cells are taken out for bypass section.
Your way of testing is problematic since you didnt remove the diodes legs it still is polluted from the circuit....and also you didnt trace the flow of circuit you just pretend that it is as it is...
@@aamirtechnbikes5880 ni diode to esy he change hon gy. ye to simple hy jo jo short thy wo wo os ny badal deay.. wesy mostly diode open ho jta hy jall k. short hony k bhot kam chance hoty hy. pta ni ab es k etny kesy short ho gae
@@technicaldunya1095 brother diod hum Reverse bias mode may lagaty hain Takey in case of night battery say power back to Soler Panel na jeyy. Yani Kay diod ka anode negative per or cathode gis per white nishan he wo postive lead per legaty Hain. Ye test continuity say bhe ker saktay han with same leads ko meter may connect ker Kay . Lakin leads diod per reverse biased mode may lega ker. Or Ager or zeyada best results chahey.to jub hum Soler panels ko design kartay Hain to ager her panel Kay parallel may diode lega day to same Panels key output per achay ampares hasil hon gayy. Is am right
Those diodes were connected in parallel. Not sure how you faked it but you can’t test an individual diode in that case. You would have to remove and test each individually.
I don't think he faked it, just look at the diodes move when he probes them, this looks like a rather poor design and the top/bottom diodes were just making very little if any connection.
Bhai gunga r bughaz Wala Kiya btaey ga
I have ever seen solar panel where the diodes were connected three series sets and then connected parallel.when ever I tested the diode when still on solar ,some shows open loop but after removing it from solar panel and tested it shows it is good.
The problem is the solar giving out low current resulting in to low power output
great video I get the end point, few steps missed.
you showed testing the string that was shorted, I guess you just missed the part where you should have shown individual testing on each bypass diode. people must remember if you change these the silver strip of the diode is the cathode side this always goes to positive side, current flows from anode to cathode. remember if replacing bypass diodes take into consideration of the desired voltage of a series pv system and the amount of amps flowing through these. 25% extra for amps or nearest option is advised, more is better for life of these.
He shorted the schotkey diodes dead shorting out a section of power cells. Those are bypass diodes that prevent shaded cells blocking current flow. You can't test each diode unless you remove leg connection.
Weldone engr. Thanks for this clip it will help me. I have a panel not charging. I thought its a big deal to fix with money and d stress. But with this I will go get diode. But what are the units of this diodes
Can you repair a panel reading almost full open circuit voltage but very low short circuit current? Panel is in fairly new condition.
having worked on some super shitty cheap solar panels (I'm looking at you Windy Nation) I can totally appreciate this beautiful piece of machinery those diodes are really easy to replace so soldering required, nice!
Wow great idea ❤
A really good demonstration thanks
One diode means all short in this condition.
or belter said, if one diode is short then all diodes parralel with the faulty diode will be short also. you need to remove and test each diode individually.
Great thanks 👍
Gud day sir pnu natural lang po ba sa panel 120 watts n ung ampers nya hangagng 0.40 lang
What do you call those diodes and where do you get them?
Solar Cells panel Junction Box diodes
Sir ! 335 watt ka panel hai short surcit current 9.40A usmein 4 ya 5 empier a rahe hain he to me kya karu plese reply
Jo video ma dekha ha wesy wesy kar do,8 amp tk barh janen gy
can i use any 10amps diode to replace useless diodes? In shoppe i saw (10A 2000v)
Those 6 diodes are in parallel. Normally if the first goes short circuit it protects the rest of them. So you only needed to replace one.
Nice demonstration
Salam janb kesy haan ap umeed kerta huun ap keriyat say huun gay janb mujhy essi panal ki cables change kerni ha tu enn cables ko kesy change keron ga mein nay open kerny ki kafi kosish ki ha but open nahi ker sakya jis ki waja say cables chnge nahi hui han ap kindly ess ka tareqa tu batta deyn plz
Can 4 x 355w panels charge 2 x12v batteries to 3500w inverter?
yes, but now consider them in series-parallel connection; that is each two in series then combine the series into parallel. This will increase volatage and current. Ensure that the voltage of each solar panels are equal. Have your 24v charge controller with you.
Whats the rating of diodes in normal 250/260watts panels?...i have some poor performing panels at a remote location, i intend to visit the location soon and to attempt this repair, so want to go there with the diodes and not do a roundtrip twice
my panel 19.78 v. but the amp it's only lestt 1 amp. its only .98 amp. what can I do? to make 4. 5. 6 amps?
Where can I get me a 50 Amp solar panel with a charge control and something that can detect a short circuit. Can a 2,000w solar panel work for a jumpstarter to get more watts to power stuff ?
I am a little confused about the meter scale used and the connections as you seem to have no connection on the common connecter? For some measurements.
Yp, the meter scale were in mA
good work and owesom thout for us
Speachless
How you were able to measure 6Amps while your meter set on 20mAmp ?
Means it wll measure from 0 to 20
@@NaveedZahirCreativityOk got it. Turns out that this model of MM will display amps regardless of setting.
and he also chcek diodes one by one connected in paralell :DDD
@@NaveedZahirCreativity no mate. meter is only rated to 10A you have set it on the 20ma scale but because you are using the 10A lead port it defaults to 10 amp scale.
@@NaveedZahirCreativity No, you set it to 20ma. Set it to 10Amps, and also confirm what jacks you selected... n
Bhai maine direct diodes ke upar se wire attatch keya hai bt phir b 4 Volts he araha charge controller me
I changed the box of 150watt and wire but still amp is 2.7 or hardly 3 what to do ?
Mera bhe yahi same issue hae koi solution mila?
Chota bada panel ka ampr kam jada hota h kya
6,45 mA? Only?
Kamil yes what the heck
Mine 150 watt panel gives 7 amps at 21 volts 7times21 is equal to 149
Sir Mera 320watt 36 volt panel sirf 3amp de raha divod bhi chack Kar lya hen koi Halhy iska .
Ur problem solve?
Pls call 8075365562
Check your cable length from panel to inerter and wire gauge. There might be high line drop in your case
good work, mera ap se ye sawal he ye br br khrab ho jata he joh cells he khatam ho jatay he koi es ka solution he joh jaldi khrab na ho , kue ka me bhot br cells change kr chuka ho , wire etc sab thek he es ka bawa jood khrab ho jati he cells phat jatay he
Asli diode ki pehchan kya hi
آپ کو اس بنیادی بات کا ہی نہی پتا کہ ڈائیوڈ کا اایمپئر کے ساتھ کوئ تعلق نہیں یہ صرف بیٹری سے ریورس کرنٹ کو سولر پلیٹ کی جانب جانے سے روکتے ہیں.
A diode is a semiconductor device that essentially acts as a one-way switch for current. It allows current to flow easily in one direction, but severely restricts current from flowing in the opposite direction.
And those diodes are useless its only for cell that are shaded. Remove it all and place it on a open space no shading you'll get a better result
Very nice
كيف افحص امبير اللوح بجهاز الكلامب ميتر ؟
V good
bhai sb diode sirf purifier ka kaam krte hn agr na bhi lage hn to koi issue ni ha 😃💬😃😃
I might think the video is valid if the leads of the meter were connected correctly
You might have understood if you had sense that the leads are connected for ampere correctly not for voltage
Bhai mera pas 150watt solar panel ha 2.7amp deta ha . Box b change kia wire b change kia but koch zyada faraq nhi parha Ab kia krn?
haan mere panel main b yehi problem hai. Koi solution mila ap ko?
Thanks sir
Silent but nice info
Not sure I'd call 6v output fixed.
Putting parallel diodes !!! I expect better from German engineering.
Putting six discrete diodes in parallel will almost alway not distribute current uniformly across the parallel diodes. First, the diodes have to be precisely matched.. Not likely with discrete diodes. If lucky the parts came from same wafer, preferably adjacent diode die from fabbed wafer location.
Second, the parts have to be tightly heat sunk together so they are all at exactly same temperature. As diode heats up its forward voltage drop is reduced so it will take more of the current from other slightly cooler diodes, causing it to get hotter. Run-away effect causing hottest diode to take most of current and get even hotter.
Leaded diodes provide poor heat sinking capability. For bypass diodes it is better to use TO220 or similar packaged diodes with additional metal (electrically isolated) heat sinking. Single heat sunk diode for each bypass diode. Packaged part with dual diode in single package okay to parallel as they are likely well matched and tied to same heat sink base of package.
When a panel is partially shaded a bypass diode can have upwards of 5 watts of heat to dissipate. A leaded part gets blistering hot.
This panel is unusual with five bypass sections. Looks like done across short row pairs instead of long column pairs. Better for reducing drop out for partial shading as less series cells are taken out for bypass section.
FAKE VIDEO COZ HE SET MULTIMETER AT WRONG SLECTION AND SOLAR PANNEL IS ALSO BRAND NEW
Sir Mere solar panel Mein current nahin aa raha Koi solution bata dijiye please
Your way of testing is problematic since you didnt remove the diodes legs it still is polluted from the circuit....and also you didnt trace the flow of circuit you just pretend that it is as it is...
ဆရာဆိုလာတစ်ရာထွက်ကိုဒိုင်အိုပ်ဘယ်နှစ်လုံးထက်ရမလဲသိချင်လိူ့ဘာ
I did something very similar, new plans from Avasva helped me with this.
i need 320 wate solar panels diode junction box complete
4 pannel strip or 5 panel strip ...?
4 pannel strip junction box is 700 rs
fake video. I strongly condemn it.
3 to 6 ma is a stupid improvement.. your panel look dead and why to measure on the 20ma scale instead of 10amp??
aby ye kiaa? 20mah py meter set kar k 3Amp kesy check ✔ kar sakty ho.. kia darama kar rahy ho ye😤😤
Technical Dunya sahih kaha
Technical Dunya isne diode kaise check kiye yebhi drama hai black wire kidher lagai hai
@@aamirtechnbikes5880 ni diode to esy he change hon gy. ye to simple hy jo jo short thy wo wo os ny badal deay.. wesy mostly diode open ho jta hy jall k. short hony k bhot kam chance hoty hy. pta ni ab es k etny kesy short ho gae
@@technicaldunya1095 brother diod hum
Reverse bias mode may lagaty hain
Takey in case of night battery say power back to Soler Panel na jeyy.
Yani Kay diod ka anode negative per or cathode gis per white nishan he wo postive lead per legaty Hain.
Ye test continuity say bhe ker saktay han with same leads ko meter may connect ker Kay .
Lakin leads diod per reverse biased mode may lega ker.
Or Ager or zeyada best results chahey.to jub hum Soler panels ko design kartay Hain to ager her panel Kay parallel may diode lega day to same Panels key output per achay ampares hasil hon gayy.
Is am right
அண்ணா தெரட்கா பார்க்க முடியாதா
bolo b na yaar samjhao b
Gonge han
❤🎉😂
@@αρια φιλε μου
jhoota hai, fake video hai, diod aik khrab hu ya porry ais pr kuch asar nahi prta,
Apni zubaan bhi Kisi Se check Karwa le laaanat tumhary video bnany per Islam dena chahiye mgr bughaz Wala Kiya Dega
Don't explain enough for me
He test it individually hehe its connected in parallel. Very stupid idea.
goongi video
علطی
حننت
They're never that nice & easy to repair..fake.
FAKE !!!! DISLIKES !!!
Kuchh bol le sale
wery bad video, he dont know what he doing :DDD
How about broken glass low amp? How to fix it?
علطی