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: L# a+ @0 J: q8 f4 ^6 G) O* K | Mains Transformers Overload test4 Q) L+ F4 W: Z' l$ y
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| 61010-1(ed.1);am1;am23 F4 K: c' e8 F! E9 I7 @
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Standard:
! y& n, s, T4 m0 n7 }" ], nIEC 61010-
2 u; ^1 P9 h9 E' b J1:1990+A1:1992+A”:19955 @$ g! X* q6 v9 s u6 \" F9 s
Sub clause:
* d# F3 }- r, w% h- L& u- S$ O7 Q14.7.2+ ]% p8 a F; |4 P0 a
Sheet n. 316
; [$ Z. Y: [. `3 g1 K' Z+ x" {5 ~Page 1(1)( f! @" J' p( L7 ]
Subject:1 {) t. d+ l& D6 U, O- r
Mains transformers" r( O% ^. a& _- {# f
Overload test
! c3 r w N2 z0 y5 mKey words:
. U3 w) l1 T7 J$ ~- c0 r: u- Transformer
; K' ?9 q- I' f: P. m/ U! R4 Q- Overload
. o9 a/ G# F( U2 \4 V8 d- Temperature2 }, R+ P9 L, K, s' I- g
Decision taken by( u8 t2 l: @1 d7 V$ C2 V, B* M% K1 r
ETF3 and confirmed; p& f8 a3 @2 u6 X6 h* f3 m
by CTL at its 38th/ i1 T/ W2 h+ y+ x& u! _
meeting, in Toronto4 A# {1 X& |6 ]; i; a$ v
Question:9 T- v8 f2 o' S! F g
Should this test be performed starting from cold condition or from operating temperature?: w( f) v! A* ~5 ^3 G% I
Decision:
' | Y3 `2 q6 @! L, M. sTests from both temperatures are valid and should therefore, be performed if there is! j# I. T& h2 J C- }
likelihood that limits will be exceeded.
4 K( m( s* o5 O0 H M1 c9 lExplanation
8 Q$ R3 D& C. \" A; _All working temperatures are addressed by this requirement. Laboratories should analyse the
" G: ~9 ~' b9 H: A( r" Voperation of the device to determine whether more than one test is needed.
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发表于 2012-9-19 14:36
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