|
|
|  PDSH 1005
* W" B7 e9 @; ]
, a; @/ a4 v3 o$ |* ` | Measurement of tangent of loss angle on capacitors% m6 q% F+ ^8 S& Y1 E' S
| 88 ]; U' h$ O& F9 d
| 61049(ed.1)
8 Q6 u* j# N& O: p2 \$ R |
8 L# }1 r2 I# l G5 @6 g1 j
Standard(s):# A& V/ G2 w" ~ w" N
IEC 61049/1991: Q/ @$ O& H4 T! x; g9 p7 ]
IEC 61049-Ec/1992$ C4 S/ ?' g1 A2 ~7 V# d3 A
Subclause(s): 8% d/ w4 A- I% H: E4 x6 S
No. Year PDSH 1005 2010
& }/ f* l- O& o& {. q7 M" ACategory: LITE Developed by: ETF5 OSM/LUM( x0 B. q1 ]/ e0 E' l
Subject:
) K2 | ]# |0 ^7 O4 m7 S& r* h: UMeasurement of tangent of loss angle on capacitors# l) }, c' [5 H1 o5 h+ r1 i% g
Key words:
) @! r% A5 U- t. s- Discharge resistor, U; `! p. G# N) O/ l- w/ I
- Capacitor( a7 K |0 |, _% u& y
- Tangent of loss angle
4 Q6 h2 ]7 y' J) BTo be approved at the 49th CTL Plenary Meeting, in 2012
! l& G: X& [- k. f; u; {Question:/ A0 u) S3 k; l
When checking the value of the tangent of loss angle against the value declared by the manufacturer,
6 z4 W/ Z1 r- o3 t0 xshould a discharge resistor encapsulated with the capacitor be considered? This is relevant because in a 2( u3 i; k/ h- I) J
μF capacitor with a discharge resistor of 1 M, the tangent can duplicate its value.
: _3 `; U$ B+ E- w; U: c$ a, GDecision: h+ M, b# g3 q8 O2 n2 Q
In case the resistor is an integral part of the capacitor, the resistance is to be considered.
! C7 C4 ]9 R5 P$ U2 h: \, v
. X& u/ C6 u) n6 V8 C2 d2 {* p& O/ K, _+ [5 I
|
本帖子中包含更多资源
您需要 登录 才可以下载或查看，没有账号？注册安规
x
|
/1 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2012-9-17 16:03
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡