Lightning Arrester Characteristic Testers

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Lightning Arrester Characteristic Testers
Posting date : Sep 01, 2011
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85-
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General Information: GDYZ-30 zinc oxide arrester field tester is specifically designed to test the electric valve internal defects of zinc oxide lightning arrester of power system below 10kV ,aim at the test of 1mA (U1mA) and 0.75 U1mA leak current of metal oxide surge arresters,should be made by Power plants and substation ,when the annual pre-season thunderstorm. The new generation of instrument has been improved, combined with the DC high voltage power supply, measurement and control system, which reduce equipment size and weight , is essential plant equipment for the power system and MOA site inspection . Features: Internal power supply: AC220V AC , built-in rechargeable battery can also be used; 2. Easy to use: intuitive measurement data; 3.Measuring accuracy: all-digital processing, built-in sophisticated mathematical models, high accuracy, repeatable test results; 4. Easy to carry: light weight, easy to carry; Technical parameters: 1. Measuring range: Voltage: 0 ~ 30kV Current: 0 ~ 1000μA; 2. Resolution: Current: 0.5μA Voltage: 0.1 kV; Built-in power charge time 2-3 hours; Built-in power usage time: ≥ 4 hours; Ambient temperature: -10 ℃ ~ 50 ℃; Relative humidity: 25 ℃ ≤ 85% ; Altitude: <1000m; Supply voltage: 220V ± 10%; 9. Power frequency: 50 ± 1Hz;

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