Description
Zinc Oxide Lightning Arrester/Characteristic Tester/Portable Arrester Tester
General information:
HEYZ-III Oxide Arrester (on-line) tester is a special instrument used for detecting zinc oxide lightning arrester electrical properties, the instrument is suitable for all kinds of voltage grade zinc oxide lightning arrester of on-line or power off detection, so as to discover the internal insulation equipment be affected with damp be affected with damp, valve plates aging dangerous defects, etc.
Equipment operation is simple, easy to use, the whole measuring process is controlled by single chip microcomputer, can measure the zinc oxide lightning arrester full current and resistive current and harmonic, frequency voltage and harmonics, active power and phase difference, real big screen can display voltage and current waveform..Instrument with digital waveform analysis technology, the use of harmonic analysis and digital filtering software anti-interference methods, such as the measurement results are accurate, stable, to analysis the fundamental wave and 3 ~ 7 times harmonic content accurate., and overcome the interphase interference effects can, measure the edge of impedance surge arrester current correctly. This machine is equipped with high-speed panel printer, rechargeable batteries; the experimenter uses it very convenient. Instrument adopts unique high speed magnetic isolation digital sensor collection and collects input voltage, current signal directly, to ensure the reliability and security of data.
Features:
1. The machine uses LCD display, full English menu operation, easy to use.
2. High precision sampling and processing circuit, the advanced Fourier harmonics analysis technology, ensure the data is more reliable.
3. Instrument uses unique high speed magnetic isolation digital sensor collection and input voltage, current signal directly, to ensure the reliability and security of data.
4. Instrument has an impedance current peak value output, edge phase correction, etc.
5. Instruments equipped with rechargeable batteries, calendar, clock, miniature printer, can store 120 groups of measuring data.
Specifications:
1.Full current range:0~10mA Valid values Accuracy: ±(Readings×5%+5uA)
2. Fundamental wave of resistive current accuracy (wired without interphase interference:±(Readings×5%+5uA)
3.Current harmonic accuracy: ±(Readinbgs×10%+10uA)
4.The current channel input resistance: ≤2Ω
5. Input voltage range: 25V~250V accuracy: ±(Readings×5%+0.5V)
6. Voltage harmonic accuracy: ±(Readings×10%)
7. Voltage channel input resistance:≥1800kΩ
8. AC charging: AC 220 v + 10%, 50 Hz ± 1%
9. Battery continuous working time: more than 8 hours
10. Battery charging time: 6 hours
11. Precision of the instrument: 1%
12. Instrument dimensions: 34 cm x 22 cm x 20 cm
13. Instrument weight: 5 kg (excluding cable box)
14. Working environment temperature: - 10 ~ 40 ºC
15. Relative humidity: < 90%