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8 b8 ^$ r4 c( o3 {+ C
; E# {9 `; K1 b" X u: n | Mains Transformers Overload test
# c' ]! D5 I6 O& k+ j | 14.7.23 y! l( m4 r6 X7 W
| 61010-1(ed.1);am1;am2
2 q4 o, ~7 @4 j |
+ ?7 o( U' Y" r* |2 v$ ?
- v* z& c5 h! S \$ r7 e3 }Standard:
6 K4 z$ B. y% |# B2 ~/ W2 KIEC 61010-
1 `% I! [5 c: H' ]( u) w. l1:1990+A1:1992+A”:1995
3 c+ ^: z- i/ ^. eSub clause:( w! N- ]7 w" i& p; m P7 Z9 I5 \
14.7.2
6 ^( }, E; w/ F& WSheet n. 316
" `) {0 X+ F2 ] R* R5 rPage 1(1)
+ E8 h8 y( E# S1 `Subject:
6 q' R1 H; L, u8 o2 m5 yMains transformers$ _: E' ~3 K6 E$ c( ~, c
Overload test9 Q |7 p. O$ l% H4 s
Key words:$ W/ `' P' t: f, ]# x. H
- Transformer
( ?4 l3 r3 L6 w9 h- Overload4 x% u. \% F$ E- t
- Temperature) Y6 h V: W% ^
Decision taken by! k7 d. f. s: o9 a/ i# o
ETF3 and confirmed- Q& k) \! \) ^' p; d8 D
by CTL at its 38th
/ v. T7 N1 u) K1 Z7 tmeeting, in Toronto) O, V2 [; K: r8 Q
Question:
/ D$ _( y$ N$ S4 C( @# w: lShould this test be performed starting from cold condition or from operating temperature?
" ~- z. i7 J- [2 H$ kDecision:4 L6 E2 f K! V S/ S/ }
Tests from both temperatures are valid and should therefore, be performed if there is
% ` j4 S) t, s3 N9 f/ S. d) Z+ Olikelihood that limits will be exceeded.4 Z4 Q$ d! G) n" @7 [: S
Explanation
4 G6 r& d1 I" f! J+ MAll working temperatures are addressed by this requirement. Laboratories should analyse the6 t3 X4 N+ a! R2 g, j
operation of the device to determine whether more than one test is needed.9 \0 R* S9 v1 Q
9 T* N7 p: Z* m9 I& d3 G# E- u% k/ l1 F, \, h" {$ E
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发表于 2012-9-19 14:36
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