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T
ESTS AND
T
EST
C
ONDITIONS
P
AGE
7-30 V
OLTECH
AT
I
U
SER
M
ANUAL
7.1.7
D – D
ISSIPATION
F
ACTOR OR
T
AN
δδδδ
Measurement
Range
Test
Voltage
Test
Frequency
Basic
Accuracy
0.001 to 1000
1mV to 5V
20Hz to 3MHz
0.5%
SEE ALSO THE CAPACITOR TESTING SECTION OF THIS CHAPTER.
The parameter ‘D’ is most often used as a measurement of the losses in a
capacitor. It is analogous to Q for a transformer winding.
For this equivalent circuit the Dissipation Factor D is defined as:
D = Rs
(where
ω
ωω
ω
= 2
ππππ
f)
1/
ω
ωω
ω
Cs
For a given capacitance, the lower the equivalent series resistance, the
lower is the value of the dissipation factor or tan
δδδδ
, i.e. the 'better' the
capacitor.
Where Used
The dissipation factor test would normally be used for capacitors of all types. A
D factor test will help to determine that the capacitor has been manufactured
correctly.
AT Series
Tester
Rs
C
Содержание AT360
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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...
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Страница 151: ...PROGRAM EDITOR VOLTECH ATI USER MANUAL PAGE 3 29 Minimum limit only Maximum limit only...
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Страница 173: ...VOLTECH ATI USER MANUAL PAGE 4 1 4 AT SERIES SERVER...
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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 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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