LIGHTNING PROTECTION FOR SOLAR CONTAINER
Lightning protection is an indispensable part of the entire photovoltaic power station, which is related to the safe and normal operation of the power station and the safety of power station a?|
The direct lightning strike protection is usually achieved using lightning rods or wires. The calculation of the protection range of lightning rods or wires for UHV substations and converter stations may be performed using the same method as that for 500-kV substations.
According to IEC 61400–24, wind turbine blades are protected at LPL1 level if there is a 99% probability that lightning current parameters will be within the range 3 kA – 200 kA, and the protection system is adequate to withstand that range of current. Lightning can be classified as upward initiated or downward initiated.
Installing metal oxide arresters (MOAs) in the substation is another major measure to limit the lightning intruding overvoltage. MOAs installed on either the bus side or the line side in a 1000-kV substation all have a rated voltage of 828 kV, nominal discharge current of 20 kA, and lightning protection level of 1620 kV.
Attached or nonattached external lightning protection system (LPS) in combination with surge protective devices (SPDs).
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