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Main technical indicators of partial discharge detector
Classification:
Power Technology Show
2016/04/05 10:20
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[Abstract]:
Main technical indicators of partial discharge detector
1. The number of measurement channels: 3 channels （standard）
2. The capacitance of the testable product ranges from 6PF to 250F.
4. Elliptical scanning time base:
（1） Frequency 50 （inside）, 100, 150, 200, 400HZ.
（2） Rotation: It can be rotated by 360° in 30°。
（3） Working method: ellipse - expansion - straight line.
（4） The high-frequency time base ellipse can be adjusted to the normal size according to the input voltage （10~250V）, its ingesting power is <1 volt-ampere, and there is an overload automatic protection device.
5. The display unit
It adopts a 124×104mm2 rectangular oscilloscope tube with brightness and focus adjustment knob.
6. The amplifier
（1） 3dB low-frequency end frequency fL: 10, 20, 40KHZ optional.
（2） 3dB high frequency end frequency fH: 80, 200, 300KHZ optional.
（3） Gain adjustment, coarse adjustment of 6 files, the difference between the gears is 20±1dB, and the fine adjustment range is >20dB.
（4） Positive and negative impulse response asymmetry <1dB.
7. Time window
（1） Window width: adjustable, 15 ° ~ 150 ° under 50HZ.
（2） Window position: Each window can be rotated from 0° to 170°。
（3） The two time windows can be opened separately or simultaneously.
（4） With a one-time bombardment device, the bombardment time is about 20ms （for photographing）.
8. Pulse peak table
（1） Linear scale pointer type head 0-100 error ± 5% （in full scale）.
（2） Logarithmic scale pointer type head 0-10-100 error ± 5% （in full scale）.
（3） Digital meter head: display with 3 digits and a half LED digital meter
0-100 Error: ±3% （in full scale）.
9. Test voltmeter
（1） Range 100KV （with 100KV voltmeter resistance R）.
（2） Display: 3-digit half-digit voltmeter.
（3） Error: ±3%.
10. Zero standard system
（1） The zero mark of the internal zero mark generator can change the polarity and can be rotated by 0 to 180° to make the true zero mark position polarity generated by the voltage resistance R match.
（2） The zero mark is consistent with all elliptical scan frequencies.
11. Structure
（1） Volume 530 × 550 × 220mm3
（2） Weight: about 22KG.
Principle of vacuum tester
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