HVTest HTFZ-III, Руководство пользователя

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8
is larger (1200A square wave), the minimum action current is 100A (8 / 20
μ
s)
impact current. JS-8 counter is suitable for 6.0 ~ 330kV arrester, JS-8A counter
can be used for 500kV arrester.
II Technique Parameters
Parameters
：
The output voltage DC1600V
±
5%
Interval time
≥
30s
Power supply DC12V / AC220V
±
10% 50Hz
±
2%
Impulse current
≥
100A
（
8/20
μ
s
）
Diemension 380
×
250
×
180mm
Weight 3kg
III Check method & principle
As bad seal, may there are moisture and water will enter operating cycles
counter during operating, which will make internal components corrode, further
counter cannot work properly, so the "regulations" require that this device
should be checked one a year. The two methods of on-site inspection counter
action are: capacitor release current method (DC&AC) and standard impulse
current method. Research indicates that standard impulse current method is
more reliable; the principle circuit diagram is shown in Figure 2.