Guys please Does anyone know what are the components of the breaker panel of the on grid system of solar panels?

or in other ways how can i connect or change between the grid and the solar panels?

 

Guy,

There are many different kinds of solar grid-tie panels; it depends on many factors.

Most grid-tied systems use some kind of power inverter to change the DC produced by the solar panels to AC, and when the sun is bright enough that the power inverter can send AC current to the grid it starts sending current to the grid. Mostly, there is just a "diode" that shuts off the output of the power inverter when the sun isn't bright enough. There usually isn't any kind of "switch" per se, other than a circuit breaker to isolate the two (solar panels and power inverter, and the grid). It's mostly automatic.

Some individual panels nowadays have their own individual inverters which are connected together and then tied to the grid through a circuit breaker. But they operate similarly, and supply current to the grid when the sun is bright enough and stops supplying current when it's not. (The brightness of the sun isn't the ON/OFF; it's the ability of the panels to produce current based on the brightness of the sun--just to be clear.)

Have you used your preferred Internet search engine to search for various systems that are sized to about your requirements (which you haven't told us--how much power, in kw, are you considering producing and supplying to the grid?)?

There is a lot of information about pre-packaged systems, from which a lot of information can be gleaned about various components.

If you're trying to "change" (switch) between solar panels and a grid, you'll need some kind of breaker or suitably sized switch scheme, and there will be periods of no electricity during change-over (switching). There are equipments known as automatic transfer switches that can switch quickly between grid and solar systems--but they're not cheap and do require maintenance.

If you want more information, please help us help you by providing more information about the system and how you intend (or how your professor intends) to operate it.

Hope this helps!

 

Ahmed Shahat… there are essentially two-types of Grid-Tied systems; Utility-Size, and Residential-Size!

If the latter and you are in the US, the last piece of equipment on the home-owner’s property is the AC-disconnect switch located near the Utility Service panel. It must visible to, and accessible by Utility workers! The entire installation must conform to the National Electric Code (NEC), Article 690!

Regards,
Phil Corso