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标题: 多头电磁炉EMC测试 [打印本页]
作者: yuanlinrong    时间: 2011-11-4 10:08
标题: 多头电磁炉EMC测试
请教一下各位：多头电磁炉出口欧洲，EMC测试是单独一个炉头一个炉头地测试还是全部一齐打开测试？有没有依据标准？
作者: jiayou    时间: 2011-11-4 10:37
如果多炉头可以同时工作，当然会优先考虑同时工作的干扰是否是所有干扰中最大的，他们会根据电磁炉的电路原理来判断。
作者: vincent_feng    时间: 2011-11-4 11:34
CISPR 11中，7.6.7有规定测试方法! i0 R; H8 N% ?9 b+ c  x: o* z
7.6.7 Single and multiple-zone induction cooking appliances- Z5 [0 }# Q# c
Each cooking zone is operated with an enamelled steel vessel filled with tap water up to 80 %( M2 K; u( P7 O  `0 k. Q$ M! H
of its maximum capacity.5 U8 E/ J& q0 S
The position of the vessel shall match the hob marking on the plate.
/ J( P* e  A8 HCooking zones shall be operated separately in sequence.
! s7 e1 m" E! A$ tA cooking zone with more than one induction coil shall be measured with two load conditions.
5 e+ x  T$ [) \" m' v* v  @+ k0 C* iThe first measurement shall be performed with the smallest coil of the zone activated. The
1 A7 Q. n9 R- M2 a# gsecond measurement shall be performed with all coils of the zone activated. In each case, the
: s4 N) Y' P* s1 gsmallest usable standard vessel shall be used (or the smallest vessel according to the4 p( Z9 c# m8 O  @) m. q
manufacturer’s instructions, which take precedence), which just activates the smallest coil, or
$ Q+ g* s8 z; D2 c* t" ]" oall coils of the zone, respectively.- G3 v, d: H6 e  U8 f
Energy controller settings shall be selected to give the maximum input power.
: V, G! L' S5 \/ j8 L, l3 S. XThe vessel bottom shall be concave and shall not deviate from flatness by more than 0,6 % of) }# {/ p$ v3 U+ u
its diameter at the ambient temperature 20 °C ±5 °C.
$ D$ _6 v$ o9 W8 S$ Y) OThe smallest usable standard vessel shall be placed in the centre of each cooking zone. For. H! R& W1 r4 {3 j& N; a
the dimension of the vessels, the manufacturer’s instructions take precedence.! x6 l% j5 z5 t1 }, r
Cooking zones which are not intended for use with even vessels (e.g. wok-zones) shall be) c2 e# k9 P9 }; C: W% H
measured with the vessel provided together with the hob, or with the vessel recommended by
# U/ t6 Y; G7 B/ ^1 [; n  b# Lthe manufacturer.: R* N7 }6 `/ I) Z
Standard cooking vessels (dimension of the contact surface) are:# o) H: {7 W* C
110 mm
1 `- ^. g6 A' \* X+ ?145 mm
! v' C8 _6 z+ @9 A$ p2 m3 r180 mm
* Y& X0 G7 p  Y' f! {7 I0 U0 G210 mm
7 `  b' H' }  G$ y! m300 mm
  h2 t1 R9 F0 _7 F4 B9 UMaterial of the vessel: the induction cooking method has been developed for ferromagnetic
+ y1 c( |: [1 v' ~utensils. For this reason, measurements shall be made with enamelled steel vessels.
3 G) U: n8 V4 R9 P% t7 h) tNOTE Some vessels on the market are manufactured from alloys with a ferromagnetic portion. However, these% t5 X" H4 K) Y8 _% g9 X
utensils might influence the sensing circuit for vessel displacement.- t" q3 d2 L/ a8 p6 D3 L
7.6.8 Electric welding equipment0 X7 N' Q3 p+ ?9 F# r
For arc welding equipment, the welding operation during the test is simulated by loading the. N: ~  x9 e$ A2 c1 m* g+ w
equipment with a conventional load. Arc striking and stabilising devices shall be switched off, s' H! s- P" y
during the emission measurements. The load conditions and the test configuration for arc4 I. w% S. |+ J+ b
welding equipment are specified in IEC 60974-10.( r7 E$ C2 M! s7 X
For resistance welding equipment, the welding operation during the test is simulated by shortcircuiting- j/ ]" X9 b' g3 c, ^) T7 A
the welding circuit. The load conditions and the test configuration for resistance
- x" v$ Z5 g4 ]* Ewelding equipment are specified in IEC 62135-2.
作者: lsysz    时间: 2011-11-4 12:28
引用第2楼vincent_feng于2011-11-04 11:34发表的  :3 n+ b! C7 I' Q& z6 M  n3 z. F  B3 t% ?
CISPR 11中，7.6.7有规定测试方法4 c- F2 @1 |1 ~2 N$ p) e
7.6.7 Single and multiple-zone induction cooking appliances
  \, x/ J- u. A$ h- X5 iEach cooking zone is operated with an enamelled steel vessel filled with tap water up to 80 %
4 N4 ~5 A% U! _' L( Mof its maximum capacity.- D, a7 _5 d" `; A3 |. R$ L
The position of the vessel shall match the hob marking on the plate.
! r% p/ v5 L9 `. u! R.......

" @. Z# @+ [& u" h  i; ~: P' E欧洲标准应该是EN55014-1吧。
. [0 f5 x* Y8 b, l, q7.3.4.1 Hob elements of hobs and heating elements of hotplates, controlled by thermostats or by energy regulators are operated with a duty cycle(50+/-10% of the control device. An aluminium pan filled with water is placed on the element. The click rate N is half of the number of switching operations per minute. If a hob or hotplate contains more than one element, the click rate shall be measured and evaluated for each individual element in turn.
作者: vincent_feng    时间: 2011-11-4 13:40
引用第3楼lsysz于2011-11-04 12:28发表的  :
- Z% m  J# t, G; o! D: o6 E- }- ]3 `' o# H$ w# z
0 L4 {8 |9 D) t: \
欧洲标准应该是EN55014-1吧。
; [7 f, s/ Q: U! l# }0 x3 g; W7.3.4.1 Hob elements of hobs and heating elements of hotplates, controlled by thermostats or by energy regulators are operated with a duty cycle(50+/-10% of the control device. An aluminium pan filled with water is placed on the element. The click rate N is half of the number of switching operations per minute. If a hob or hotplate contains more than one element, the click rate shall be measured and evaluated for each individual element in turn.
电磁炉的标准应该是11，而不是14吧？
作者: 小YU    时间: 2012-9-2 02:53
顶冯公子，V5碉堡了



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