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Arrestor

 

 
ZINC OXIDE ARRESTOR

Zinc Oxide arrestor is the main protection device in electric equipment of electric system, and arrestor disk is the key component of the arrestor, it determines the protection characteristics & service life of the arrestor.
 

Specification of  Zinc Oxide arrestor disk

Item

Part No.

V1mA
(KV)

V5KA
(KV)

K

*

Square
wave
2ms
(A)

4/10 µs
Great
Current
(KA)

75% Vma
11( µA)

D
(mm)

H
(mm)
D3 5.2 fh10.gif (43 bytes) 0.2 9.2 fh10.gif (43 bytes) 0.3 1.95 100
150

65

 25 34 fh10.gif (43 bytes) 1 22.5 fh10.gif (43 bytes) 0.5
D4 4.1   0.2 7.3 fh10.gif (43 bytes) 0.3 1.80 200
300

65

 30 42 fh10.gif (43 bytes) 1 18.5 fh10.gif (43 bytes) 0.5

D5

 3.9 fh10.gif (43 bytes) 0.2 6.8 fh10.gif (43 bytes) 0.3 1.75 400 65 30 50.5 fh10.gif (43 bytes) 1 18.5 fh10.gif (43 bytes) 0.5

 

Specification of  Arrestor

Part No. of disk Voltage class
(KA)		 V1mA (KA) V5KA (KV) Part No. of Arrestor No. of pieces Note
Y5WS-3.8/17 3 7.5 17 D3 2 For Power distribution
Y5WS-7.6/30 6 15 30 D3 3 Ditto
Y5WS-12.7/50 10 25 50 D3 5 Ditto
Y5WZ-3.8/13.5 3 7.2 13.5 D4 2 For Power Station
Y5WZ-7.6/27 6 14.4 27 D4 4 Ditto
Y5WZ-12.7/45 10 24 45 D4 6 Ditto
Y5WZ-42/134 35 73 134 D5 29 Ditto

* D4&D5 disk can be assembled in Zinc Oxide Lightning arrestor for motor protection and paralleled compensation capacitor protection.

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