See the Cross-Connection of same panels. • Cross-connected Solar ... Connecting Solar panels in parallel strings. 3 x 500W panels in Series Connection and 4 strings connected in parallel tutorial #solarpanels #parallelsolar #pvpanels
Great video.i have connected two strings in parallel each string has 5 panels and each panel has aroung 575 watt,48vdc and 14.8 amps.the panels i am using are bifacial.each string gives out around 14 amps and if i connect these in parallel it will give out around 28 amps.what rated mcb should i use to connect all these 4 wires i for parallel connection?plz help.thx
It is a common practice to include a safety margin of 25% to ensure the MCB can handle slight overcurrent conditions without tripping unnecessarily. This margin accounts for variations in sunlight intensity and temperature, which can affect the current produced by the panels. Safety Margin CURRENT = Total CURRENT × 1.25 28 AMPS × 1.25 = 35 amps Select the Circuit Breaker Rating: The MCB should be rated slightly above the calculated safety margin current. Standard DC MCB ratings are usually available in steps such as 32A, 40A, 50A, etc. Since 35 amps is not a standard MCB rating, you should select the next highest rating. In this case, a 40A MCB would be appropriate. Remember the fuses as well for protection of reverse current on each string 4 fuses and would be 20A Select it wisely, search Depending how you will parallel it, you would either get 2P 40A DC MCB Non Polarity.
No DC Volts and AC Volts and equipment are totally different. Your DC will also change alot depending on the sun. You might look at Micro inverter if you want to work from the panels
