550kv AC System Ceramic Porcelain Gapless Metal-Oxide Lightning Surge Arrester (Y20W5-444)

Basic Info

Model NO.	Y20W5-444
Type	Metal Oxide Surge Arrester
Structure	Zinc Oxide Arrester
Installation	Parallel Arrester
Application	Substation
Size	Large
Operation Voltage	High Voltage
Shape	Cuboid
Material	ZnO
Certification	ISO9001
Brand	Yongde
Phase	Single
System Voltage	500kv
Housing Color	Brown
Type Test	Kema
Transport Package	by Wood Carton
Specification	IEC60099-4
Trademark	YONGDE
Origin	China
HS Code	85354000
Production Capacity	200PCS/Year

Product Description

550kv AC System Gapless Metal Oxide Surge Arrester (Y20W5-444)Parameters:
Rated voltage: 444KV
Nominal discharge current: 20KA
Shed diameter: 412/380
Creepage distance: 17052mm
Height: 5824mm
Gross weight: 1355kg
High current impulse: 120KA
Lightning impulse withstand 1425KV
Switching impulse withstand: 1050/1175

Type	Nominal System Voltage	Rated Voltage	Continuous Operating Voltage	MRV under 1/5 μ s Steeo Discharge Current		MRV under 8/20 μ s Lightning Discharge Current		MRV under 30/60 μ s Operating Discharge Current		Minmum Reference Voltage under 1 mA DC	4/10 μ s High Current Impulse Twice (KA)	2mS SW through-flow capacity A/18	Line Discharge Class
				10KA	20KA	10KA	20KA	0.5KA	2KA
Y10W5-420/960	500	420	318	1075		960		852		565	100	1500	4
Y20W5-420/1046	500	420	318		1070		1046		858	565	100	2000	5
Y10W5-444/1015	500	444	324	1137		1015		900		597	100	1500	4
Y20W5-444/1106	500	444	324		1238		1106		907	597	100	2000	5
Y10W5-468/1070	500	468	330	1198		1070		950		630	100	1500	4
Y20W5-468/1166	500	468	330		1306		1166		956	630	100	2000	5