PDSH 1005 Measurement of tangent of loss angle on capacitors

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PDSH 1005 ! _9 q3 m4 r$ A$ O3 }

Measurement of tangent of loss angle on capacitors 0 f& R( V- m2 M. N

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61049(ed.1)

* o0 A' t8 p) ~+ gStandard(s):
% r8 \2 R/ b: z) |" bIEC 61049/1991
IEC 61049-Ec/1992
# ?: }5 q8 @) b; Q2 N7 dSubclause(s): 8
: _& K  s' |' w) g7 WNo. Year PDSH 1005 2010
$ l+ h  P) U$ [Category: LITE Developed by: ETF5 OSM/LUM
  R. r' ^' v8 Z1 C+ f. d8 j* PSubject:
Measurement of tangent of loss angle on capacitors
$ D, Q: h( Y6 g) H, p5 jKey words:
; N0 P* O2 t2 e' U- Discharge resistor
0 P. C9 S6 T8 A" n- Capacitor
- Tangent of loss angle
To be approved at the 49th CTL Plenary Meeting, in 2012
: T9 t$ Z1 F7 j! Z3 A* a! bQuestion:
When checking the value of the tangent of loss angle against the value declared by the manufacturer,
should a discharge resistor encapsulated with the capacitor be considered? This is relevant because in a 2
μF capacitor with a discharge resistor of 1 M
, the tangent can duplicate its value.
5 d- d, x+ H. `4 d, Y0 D% PDecision:
# }! v4 }: ~: A! e! ^' DIn case the resistor is an integral part of the capacitor, the resistance is to be considered.


) B- V; r; X% I' `+ F" i% n