High Voltage Polymer Metal-Oxide Lightning Arrester Surge Arrester 5ka, 21kv

• Customization: Available
• Type: Power Source Arrester
• Structure: Zinc Oxide Arrester
• Model NO.: YH5W-21
• Installation: Parallel Arrester
• Application: Substation
• Size: Large
• Operation Voltage: High Voltage
• Shape: Spiral
• Material: ZnO
• Certification: ISO9001
• Brand: Yongde
• Phase: Single
• Housing Color: Grey
• Voltage: 21kv
• Nominal Discharge Current: 5ka
• Transport Package: Carton
• Specification: SGS
• Trademark: YONGDE
• Origin: Hangzhou
• HS Code: 85354000
• Production Capacity: 5000 PCS/Month

Product Description

1.Polymer Housed with flexible silicone rubber, explosion-proof  ZnO varistor as the core component
is large in flow capacity which is much higher than that of the
 2. national standard GB11032 and ANSI 62.22, and with high reliability.  With fully insulated tops, the
product can be applied to the complete cabinet installation, which can reduce the designing size of cabinet. 
3.Products with detachment device can provide signals for quitting operation when failure occurs,
avoiding arrester explosion, and it is maintenance-free. 
4.Polymer housed products with a six CTI level,creepage distance meets the requirements of IV level in
heavy pollution areas.
 
Rated voltage: 21KV
Shed diameter: 120/90
Height b: 218mm
Gross weight: 1.6kg
Creepage distance: 662mm
Long duration current impulse 250A
Lightning impulse withstand 95/125KV
 

Type	YH5W5-21/56
Rated voltage---------kV	21
MOCV  ----------------kV	17
Nominal Current-------kV	5
Residual voltage of steep impulse----at 5kA(kV)	60.5
8/20µS Residual voltage of lightning impulse current kV(Peak value)-----at 5kA(kV)	56
Residual voltage of switching impulse current kV (peak value)----at 1kA  (kV)	/
1mA D.C reference voltage (kV)	29.7
Line discharge level	1
2mS long duration impulse current A	250
4/10µS High current impulse kA	65
Lightning impulse withstand kV	125
Power frequency voltage withstand(dry/wet)kV	50
0.1S TOV--------------kV	25.2
1S TOV----------------kV	24.15
10S TOV---------------kV	23.1
1200S TOV-------------kV	21
Creepage distance ----mm	662
Material employed in series non-linear resistor	Zinc Oxide