{"id":8274,"date":"2021-09-03T17:59:33","date_gmt":"2021-09-03T14:59:33","guid":{"rendered":"https:\/\/etg-egy.com\/?page_id=8274"},"modified":"2024-04-02T22:09:49","modified_gmt":"2024-04-02T19:09:49","slug":"solar-power-plants","status":"publish","type":"page","link":"https:\/\/etg-egy.com\/en\/solar-power-plants\/","title":{"rendered":"Power stations of solar energy"},"content":{"rendered":"

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Power stations of solar energy<\/strong><\/span><\/h4>\n

\u00a0<\/strong><\/p>\n

Solar cells<\/span><\/h5>\n

\"\"<\/strong><\/p>\n

Polycrystalline silicon solar cells. (<\/strong>polycrystalline<\/strong>).<\/strong><\/p>\n

Cells produce direct electric current (<\/strong>DC<\/strong>) directly from sun radiation.<\/strong><\/p>\n

The cells were tested according to the following criteria:<\/strong><\/h5>\n
IEC 61215 certified<\/strong><\/h5>\n
IEC 61730 certified<\/strong><\/h5>\n
VDE<\/strong><\/h5>\n
CE<\/strong><\/h5>\n
The cells are coated with glass to prevent sunlight reflection.<\/strong><\/h5>\n
The cells are equipped with <\/strong>Bypass diodes<\/strong> to improve the performance of cells in the event of shadows effect.<\/strong><\/h5>\n

 <\/p>\n

Current Inverters<\/span><\/p>\n

It is used to convert (<\/strong>DC<\/strong>) from solar cells into alternating current (<\/strong>AC<\/strong>)<\/strong>.\"\"<\/h5>\n
The output of the Inverters<\/strong>: 3-phase (<\/strong>3 phase<\/strong>) \u2013 380 V <\/strong><\/h5>\n
The efficiency of the current Inverters:<\/strong>97.9%<\/strong>.<\/strong><\/h5>\n
Provided with protection against short current and overload.<\/strong><\/h5>\n
The Inverter has a system that tracks the best point at which solar cells operate to give the best output from the cells at any hour of the day.<\/strong><\/h5>\n

 <\/p>\n

Installation structure<\/span><\/p>\n

The frame is made of galvanized iron.<\/strong><\/h5>\n

DC power cables<\/span><\/p>\n

\"\"<\/strong><\/h5>\n
They bear 1000 volts constant voltage.<\/strong><\/h5>\n
The cables are designed to withstand a current of 125% over the short current.<\/strong><\/h5>\n
The cables are designed to operate at 25oC<\/strong>and solar radiation of 1000W \/ m2.<\/strong><\/h5>\n
Cables are protected against sun UV rays and high temperatures up to 90 \u00b0 C.<\/strong><\/h5>\n
Insulated cables with <\/strong>PVC<\/strong> or <\/strong>XLPE<\/strong>insulation.<\/strong><\/h5>\n
The maximum voltage drop is 2%.<\/strong><\/h5>\n

AC protection Box<\/span><\/p>\n

The system is provided with a protection board for AC, and it includes:<\/strong><\/h5>\n
Electric circuit disconnecting to protect against overcurrent<\/strong><\/h5>\n
(<\/strong>PV Type 2 Surge Protection<\/strong>).<\/strong><\/h5>\n
A manual main disconnect switch (AC Isolation Switch) to enable the solar system to be completely separated from the public network for maintenance or emergency.<\/strong><\/h5>\n

 <\/p>\n

DC protection Box<\/span><\/p>\n

The system is provided with a DC protection board that includes:<\/strong><\/h5>\n
16 ampere \/ fuse fuses to protect <\/strong><\/h5>\n
the system against overcurrent.<\/strong><\/h5>\n
(<\/strong>PV Type 2 Surge Protection<\/strong>).<\/strong><\/h5>\n
DC manually disconnecting Switch, because the solar cells can be separated from the power Inverter for maintenance or emergency.<\/strong><\/h5>\n

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