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|  PDSH 10051 {" {" R/ \) I7 \# a: u5 p
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| Measurement of tangent of loss angle on capacitors
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4 n4 ]& _+ v3 W) j, v% p& _ | 61049(ed.1)2 n: H$ ~/ A/ T! s# k% L" {; y7 G* ^, S
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Standard(s):# a# V; `1 ]$ |4 x" e) B+ Q" W
IEC 61049/1991
. R4 |/ X- ~ AIEC 61049-Ec/1992( E% Z+ S- [2 E+ N
Subclause(s): 8# J* O% g" ~7 W9 u1 i' e4 }: T
No. Year PDSH 1005 2010. a7 R3 C4 k8 \- K6 l7 g- \
Category: LITE Developed by: ETF5 OSM/LUM2 W8 d, Z: d3 D! M8 m7 k
Subject:: L. Y' W& f3 q- V& {# W% L, X; ~' |
Measurement of tangent of loss angle on capacitors1 d% x. ~/ j8 i
Key words:
* X6 t( N3 K1 Y' @: C m- Discharge resistor
" x( i$ r( e/ n' Q( Y( b- Capacitor t8 E, L* \7 Z" o
- Tangent of loss angle
$ g; [4 _+ q6 W6 `1 g" f2 {To be approved at the 49th CTL Plenary Meeting, in 2012
2 v" r o( d% |- y5 fQuestion:+ }2 {# s3 R9 g. a3 y4 z( A
When checking the value of the tangent of loss angle against the value declared by the manufacturer,
$ Z0 v/ o+ X' d$ k& B# Zshould a discharge resistor encapsulated with the capacitor be considered? This is relevant because in a 2
" y# B x' t. BμF capacitor with a discharge resistor of 1 M, the tangent can duplicate its value.
Z5 @' u# n) V" TDecision:- t, N q9 L2 a8 K8 V+ c+ Z6 L
In case the resistor is an integral part of the capacitor, the resistance is to be considered.
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