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V
OLTECH
AT
I
U
SER
M
ANUAL
P
AGE
7-51
Test Conditions
To measure capacitance, the tester applies an AC voltage between the
windings to be tested, usually with all taps on each winding shorted together. It
then measures the voltage between the windings, and the resulting current.
Dividing the voltage by the current gives the interwinding impedance, from
which the capacitance is extracted using harmonic analyses.
Capacitance is measured as part of a complex impedance. The AT Series ‘C’
test uses a parallel equivalent circuit for capacitance measurements. CS –
series circuit capacitance is also available.
Choosing the Test Signal
Recommended test conditions for different values of capacitance:
Capacitance Range
Preferred Test Signal
Frequency Voltage
1pF
10pF
100pF
1nF
10nF
100nF
→
→
→
→
→
→
10pF
100pF
1nF
10nF
100nF
10
µ
F
100KHz
100KHz
10KHz
1KHz
100Hz
100Hz
5V
5V
5V
5V
5V
500mV
Test Conditions for Capacitance Measurement
The test conditions can also be determined automatically by the ATi according
to this table:
Voltage
Specified Auto Auto
Frequency
Specified Specified Auto
Note that a ‘fixed’ voltage signal cannot be used with an ‘Auto’ frequency.
Содержание AT360
Страница 8: ...INTRODUCTION PAGE 1 2 VOLTECH ATI USER MANUAL...
Страница 10: ...INTRODUCTION PAGE 1 4 VOLTECH ATI USER MANUAL...
Страница 35: ...VOLTECH ATI USER MANUAL PAGE 2 1 2 Getting Started...
Страница 36: ...GETTING STARTED PAGE 2 2 VOLTECH ATI USER MANUAL...
Страница 98: ...GETTING STARTED PAGE 2 64 VOLTECH ATI USER MANUAL Additional displays after entering the part number...
Страница 102: ...GETTING STARTED PAGE 2 68 VOLTECH ATI USER MANUAL...
Страница 123: ...VOLTECH ATI USER MANUAL PAGE 3 1 3 PROGRAM EDITOR...
Страница 124: ...PROGRAM EDITOR PAGE 3 2 VOLTECH ATI USER MANUAL...
Страница 151: ...PROGRAM EDITOR VOLTECH ATI USER MANUAL PAGE 3 29 Minimum limit only Maximum limit only...
Страница 172: ...PROGRAM EDITOR PAGE 3 50 VOLTECH ATI USER MANUAL...
Страница 173: ...VOLTECH ATI USER MANUAL PAGE 4 1 4 AT SERIES SERVER...
Страница 174: ...AT SERIES SERVER PAGE 4 2 VOLTECH ATI USER MANUAL...
Страница 176: ...AT SERIES SERVER PAGE 4 4 VOLTECH ATI USER MANUAL...
Страница 200: ...AT SERIES SERVER PAGE 4 28 VOLTECH ATI USER MANUAL Resistance Distribution Analysis Overall Pass Fail Analysis...
Страница 225: ...VOLTECH ATI USER MANUAL PAGE 5 1 5 FIXTURES...
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Страница 248: ...FIXTURES PAGE 5 24 VOLTECH ATI USER MANUAL...
Страница 249: ...VOLTECH ATI USER MANUAL PAGE 6 1 6 FRONT PANEL MODES...
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Страница 299: ...VOLTECH ATI USER MANUAL PAGE 7 1 7 TESTS AND TEST CONDITIONS...
Страница 425: ...VOLTECH ATI USER MANUAL PAGE 8 1 8 SPECIFICATIONS...
Страница 426: ...SPECIFICATIONS PAGE 8 2 VOLTECH ATI USER MANUAL...
Страница 461: ...VOLTECH ATI USER MANUAL PAGE 9 1 9 WARRANTY AND SERVICE...
Страница 462: ...WARRANTY AND SERVICE PAGE 9 2 ATI USER MANUAL...
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