User:Manjunathreddydhash/sandbox

Description of Solar PV Junction box: Solar junction boxes are solar power based devices which acts as protective enclosures that house electrical components for combination, connection, and termination for photovoltaic systems. They are also referred to as PV junction boxes or module junction boxes. A junction box protects the electrical connections of the solar panel from environmental conditions. Wire leads connecting the panel to the string and bypass diodes are located inside the junction box. The leads make the panel easy to connect in the string during the system’s installation process. Every string is protected by the diode in the junction box. If part of a solar panel is not generating the specified current, there will be a reverse current flowing form storage to panel. This phenomenon is called reverse flow. Junction Box is used to avoid reverse flow of electricity. Diodes in the junction box prevent reverse flow of current. A junction box is attached to the back of the solar panel with silicon adhesive. It holds the  connectors and solar cable together. Normally Junction boxes are connected in series and carrying the DC voltage of 1000VDC/ 1500VDC based on solar Panel capacity. It is connected to the invertor and finally to the grid. The PV junction box is specially designed for Renewable energy (Solar) application and this cannot be used in any other application. The PV junction boxes are Tested and qualified/ validated as per international standard of IEC62790 by any renewed certification agencies like TUV Rheinland, UL etc as per the guideline from MNRE, Govt of INDIA. Normally all the Junction Box basically have the minimum of the following components: 1.	Plastic enclosures 2.	Contact Brass terminals. 3.	Connectors 4.	Cable 5.	Contact Springs 6.	Diodes