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Surge protection of photovoltaic power generation system

Model description

Configuration description of surge protection

Configuration description of surge protection	Effect	Choice	Explain
A	Protection of solar panels	LT-60/G or LT-80/G	The connection line with the solar panel should be as short and straight as possible. According to the specific environment, the surge protector should be installed in the waterproof box.
B	Lightning protection of solar panel and controller	LT-40/G	The connection to the grounding line and the connection to the grounding wire of the DC side inverter should be as short as possible.
C	Lightning protection of controller and inverter	LT-40/G	The connection to the grounding line and the connection to the grounding wire of the DC side inverter should be as short as possible.
D/E	Protection of inverter AC output terminal	TNR-C20/385 TNR-B60/385	The connection to the earthing row should be as short as possible.
F	Direct lightning protection	TNR-FB	There should be special earthing and grounding wire.

Installation position	discharge current	Voltage selection	Protection mode	Raiter model
A	ln 20kA 40kA 60kA	Selecting the battery voltage according to the actual battery	Selecting the battery voltage according to the actual battery	LT-40G
B				LT-80G
C				LT-100G

Model / parameter	Rated working voltage Un（V-）	Maximum continuous operating voltage Uc（V-）	Nominal discharge current ln(kA)	Maximum discharge current lmax（kA）	Pattern structure	Scope of application	Wiring diagram
LT-40/G48L	48	65	20KA	40KA	Type L	Below 100V system
LT-40/G100L	100	135
LT-80/G48L	48	65	40KA	80KA
LT-80/G100L	100	135
LT-100/G48L	48	65	60KA	100KA
LT-100/G100L	100	135
LT-40/G360U	360	500	20KA	40KA	Type U	120V to 500V system
LT-40/G470U	470	600
LT-80/G360U	360	500	40KA	80KA
LT-80/G470U	470	600
LT-100/G360U	360	500	60KA	100KA
LT-100/G470U	470	600
LT-40/G500YU	500	650	20KA	40KA	Type Y（Band discharge tube)	500V to 700V system
LT-40/G680YU	680	900
LT-80/G500YU	500	650	40KA	80KA
LT-80/G680YU	680	900
LT-100/G500YU	500	650	60KA	100KA
LT-100/G680YU	680	900
LT-40/G900Y	900	1200	20KA	40KA	Y type (no discharge tube)	Over 700V system
LT-40/G1000Y	1000	1300
LT-80/G900Y	900	1200	40KA	80KA
LT-80/G1000Y	1000	1300
LT-100/G900Y	900	1200	60KA	100KA
LT-100/G1000Y	1000	1300