Audited Supplier
VS-400B
24/7 Online Service
1 Year
Digital Only
CE
Customized
Zinc Oxide Surge Arrester Field Tester
Resistive current, total leakage electricity
≤ 85 % RH
0 to 220 V
Lithium Battery
-10 to 50 ºC, ≤ 85%RH
252 x 172 x 81 mm
1.5 kg
CE; EMC; LVD; ISO; IEC;
Field testing of arresters
Weshine
Wooden Box with Foam Inside
VS-400B: Zinc Oxide Surge Arrester Field Tester
Hebei, China
9031803100
Product Description
Presently the monitoring of total leakage electricity (capacitive and resistive currents) used by many utilities. The Leakage Electricity Monitors used to measure the Leakage Current of Surge Arrester, and in case of high leakage current Surge Arrester replaced. However, it is felt that this method is not the fool proof method as the total leakage current, which is purely capacitive, does not signify precisely the health of the Surge Arrester. There are the issues once the Surge Arrester has blasted even though total leakage current value was lower than the limit recommended by the manufacturers.
Resistive current is 15-30% of total current and since capacitive and resistive currents are at 90 degree face shift even reasonable change of resistive electricity results in very small increase in the total current. Hence observing total leakage electricity may not show degradation of ZnO disc. Degradation of long linear ZnO disc generally leads to harmonics in the leakage current when system voltage of fundamental frequency applied. Third consonant resistive electric measurement based on filtering of third harmonic element from the total leakage current. Leakage current of the order of about 500 micro amps is generally considered as safe.
Here at Weshine, we invented a new generation of ultra-portable Zinc Oxide Surge Arrester Field Tester. It is used to analyze the total leakage electricity of zinc oxide surge arresters (MOA). The main purpose is to measure the resistive current of MOA. From this, the moisture and aging degree of MOA can be judged. The tester can be used not only for field live measurement test, but also for MOA acceptance and delivery test.
PRODUCT INFORMATION | |||
Product Name | ZINC OXIDE SURGE ARRESTER FIELD TESTER | ||
Testing Parameter | 1. Resistive current of MOA. 2. Total leakage electricity of MOA. 3. As shown below. | ||
Current Range | 0 to 20 mA | Model Number | VS-400B |
Voltage Range | 0 to 220 V | Working Environment | -10 to 50 ºC, ≤ 85%RH |
Power Supply | Lithium Battery | Dimensions | 252 x 172 x 81 mm |
Weight | 1.5 kg | Certificates | CE; EMC; LVD; ISO; IEC; |
VS-451
LIGHTNING-STRIKE-COUNTER TESTER
* 2 to 10 mA current output
* Unmatched accuracy: ± 1%
* Lithium-Battery or Mains powered
* Unmatched accuracy: ± 1%
* Lithium-Battery or Mains powered
Typical application:
Verify lightning strike counter of lighting arrester
Correct leakage ammeter of lightning strike counter
Correct leakage ammeter of lightning strike counter
