Solar Power Plant Strings Combiner Box

        STRINGS COMBINER BOX 

  Some names of combiner box 

 (1) SCB : String combiner box 

 (2) AJB : Area junction box 

(3) SMU : String monitoring box

 SCB : 
This is a string combiner box use in every solar plant that combine strings and give one output positive site positive and negative site negative. 

 features include in scb

      Main switch for on off

         30 Amp fuse for protection

         SPD For  grounding  over current  

• Combines 8, 12, 16 or 24 PV strings
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• Up to 1000V DC in measurement side
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• Integrated DC load disconnector
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• Integrated surge protection with monitored state
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• 0-13.7A channel measurement range
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• 1KHz sampling with on-board averaging
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• Internal temperature measurement
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• MODBUS over RS485 communication
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• IP66 rated polycarbonate enclosure.

Positive side:-

                                  This positive side of string combiner box all positive string combine positive side                                      there 24 string we can combine in this scb 

Negative side :-

 negative side we connect all negative strings                                 they coming  from solar modules and negative side no need of fuse protection .it connect direct to  busbar/. 

Main switch in SCB :-

In this photos show main switch main ,switch work on or off scb when any problems .

Outputs of scb :-

SCB output depend on sunlight solar radiation approx output 600 to 700  DC volt

Positive and negative output 

you can see in this picture two  cables Red and Black 

Red cable for positive output 

and Black cable use for negative output 
You can watch solar Power plant on my channel 
https://www.youtube.com/watch?v=Z225MvQsoU8&list=PLvVifmP59KgRh86FgZUE28Jr4pRZUF4sV