|
|
0 B9 Y* x7 Y# S& a1 A u- \5 h
) b8 r7 V8 S+ V/ C; _1 d
| Mains Transformers
3 ~! P1 {! a# r9 \" w2 p | 14.7
4 z% ~- J) H: p+ ?: [5 X9 Z | 61010-1(ed.1);am1;am2
1 @: Y2 s) }5 Q; R1 h |
: P* K$ r; d' O2 r8 c1 }# c- M4 O
# w5 ]! H |0 \ [Standard:1 q* p: E3 g0 J, I
IEC 61010-- k+ x J& A% f
1:1990+A1:1992+A2:1995
- m& V3 d. n9 J7 TSub clause:
C8 ^3 N" i* T% ]1 i) p F% B14.7: d. D! {$ w; q8 c
Sheet n. 314
( Y$ P" T0 u8 {5 RPage 1(1)% a9 P6 j1 i0 _* G! B
Subject:
# ~! A# \' F }7 f, LMains transformers% ^3 z- J5 j8 e, }0 `: p* _, h) @
Key words:
4 S R. C* ]+ C7 h4 w' [& \' Y- Isolation I9 r" t: \: C6 N0 j* O: d
- Transformer5 N- e/ D% [& ?+ _* ?
Decision taken by* l6 i; ]3 g! v3 ]0 g* W: k! Z, H
ETF3 and confirmed
$ a/ f- Z" A% ]- g9 p) |# f( Mby CTL at its 38th
. n D1 A: x( e$ P3 A2 y6 hmeeting, in Toronto; ]8 y2 t$ e/ H* o
Question:
+ g' X2 h" Y. O) N3 ^) \9 TWhat isolation and loading requirements are applied to auto transformers?1 B) J, S$ ], d# Y2 q3 X) m' E
Decision u. q2 D2 p1 I
Tests for loading are applied when applicable as for isolation transformers. No isolation) {7 X Y' d: s2 D; L( V
requirements are applied between voltage outlets, however, care must be taken to ensure that; m, W$ R5 q5 t- j
circuits separated by voltages are suitably isolated form one another to prevent short circuit
) j _: D4 w# A* s: l5 u/ Fof the intervening winding.
! x* m- l: i0 E& k$ eExplanation( K; P, [8 [; H4 S
Auto transformers are subject to overheating tests in the same way as isolating transformers,2 i) B' }% b+ D. n
however, they are not designed to provide isolation and these requirements are, therefore, not
# C. @) Q- }+ C5 ]7 Qapplicable as there is direct connection between circuits.
' J6 f9 q9 w3 u( m H# N/ [& H( G6 ^0 D0 a! p( n( L# B
o/ I( S6 P$ [. v% V O0 ?4 T3 z1 B& T9 f7 S
|
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 2012-9-19 14:40
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡