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METREL MI 3290 User Manual

METREL MI 3290
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MI 3290 Earth Analyser Appendix D Pulse and 3-pole example
151
Appendix D Pulse and 3-pole example
Test objects description and schematics wiring diagram:
Test Object
Ro
Lo
Rc
Rp
Re1
1
1 µH
50
200
Re2
1
25 µH
50
200
Re3
1
55 µH
50
200
Re4
1
376 µH
50
200
Impulse measurement results:
Impulse [Zp]
Re1
Re2
Re3
Re4
10/350 µs
1,0
1,1
2,0
12,6
Ro
Rp
Rc
H
S
E
i
probe
u
probe
XLo
Figure D.1: Oscilloscope screenshot Re1
Figure D.2: Oscilloscope screenshot Re2
Figure D.3: Oscilloscope screenshot Re3
Figure D.4: Oscilloscope screenshot Re4
3- pole measurement results:
3 pole [Re]
Calculated impedance value
Test Frequency
Re1
Re2
Re3
Re4
Re1
Re2
Re3
Re4
55 Hz
1,04
1,10
1,08
1,11
1,0
1,0
1,0
1,0
164 Hz
1,04
1,11
1,08
1,17
1,0
1,0
1,0
1,1
660 Hz
1,04
1,11
1,11
1,93
1,0
1,0
1,0
1,8
1,5 kHz
1,04
1,15
1,24
3,78
1,0
1,0
1,1
3,7
3,29 kHz
1,04
1,30
1,70
8,02
1,0
1,1
1,5
7,8
13,3 kHz
1,04
2,63
5,04
31,5
1,0
2,3
4,7
31,4
0
2
4
6
8
10
10 100 1000 10000 100000
f [Hz]
Re [Ω]
Re1
Re2
Re3
Re4

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METREL MI 3290 Specifications

General IconGeneral
BrandMETREL
ModelMI 3290
CategoryMeasuring Instruments
LanguageEnglish

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