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

• Customization: Available
• Type: Metal Oxide Surge Arrester
• Structure: Zinc Oxide Arrester
• Model NO.: Y20W5-444
• 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