安规网

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
: ?8 h+ `$ ~) _* c' D* D7.6.7 Single and multiple-zone induction cooking appliances
" a2 k% E- @' J! V3 Y. Z9 NEach cooking zone is operated with an enamelled steel vessel filled with tap water up to 80 %2 k; Z$ w/ v; C1 W$ C0 c! J# O
of its maximum capacity.
7 k9 w3 {% n6 ]+ q( bThe position of the vessel shall match the hob marking on the plate.9 G6 S; {, d' U2 P' V
Cooking zones shall be operated separately in sequence.
9 p. c0 Z/ V. A4 _& i, cA cooking zone with more than one induction coil shall be measured with two load conditions.: Y5 a" x2 o; T& f* c5 _7 J7 Y
The first measurement shall be performed with the smallest coil of the zone activated. The
! \) F9 \% `& y7 e/ ysecond measurement shall be performed with all coils of the zone activated. In each case, the4 D' n6 a0 L! s4 x1 L" V
smallest usable standard vessel shall be used (or the smallest vessel according to the
+ D* ?" X5 ~  G: U% l4 Mmanufacturer’s instructions, which take precedence), which just activates the smallest coil, or
( Y; }3 r8 h" E, P8 Jall coils of the zone, respectively.
- H4 |5 _. K8 o: e8 C# Z9 nEnergy controller settings shall be selected to give the maximum input power.
) t" H/ k9 |) n( L/ c1 ]The vessel bottom shall be concave and shall not deviate from flatness by more than 0,6 % of4 {, K! O& j( O* I; j
its diameter at the ambient temperature 20 °C ±5 °C.6 Q  F( |  a4 m$ e( {3 M. ]) m
The smallest usable standard vessel shall be placed in the centre of each cooking zone. For
5 {8 q; t' l4 Y; _; h" @1 v4 nthe dimension of the vessels, the manufacturer’s instructions take precedence.
5 G) u- O/ ~+ ~Cooking zones which are not intended for use with even vessels (e.g. wok-zones) shall be) D; e8 F( U4 \8 ^! Y2 |7 h+ H7 i  c
measured with the vessel provided together with the hob, or with the vessel recommended by" z1 l( a# z' ?- p  a
the manufacturer./ u# w9 |+ v; U
Standard cooking vessels (dimension of the contact surface) are:
! v) ~9 t/ s! `, o2 f1 N110 mm: S( y: i' q3 Z' ]) u# K  W! d
145 mm7 h- s7 C# A8 _! h$ e6 R, S0 }8 R
180 mm
( ~/ y4 ~. N; Z9 A' x210 mm
5 o$ N/ L" L  R% n300 mm3 B# U8 r1 G% [: q' v  Y& Y; `
Material of the vessel: the induction cooking method has been developed for ferromagnetic
) e- _0 o: u/ s* R2 \6 j4 E) \! {utensils. For this reason, measurements shall be made with enamelled steel vessels.) @& ]( [( ~& x- {* v
NOTE Some vessels on the market are manufactured from alloys with a ferromagnetic portion. However, these3 ~) r9 ?/ m5 k4 ], {& A/ V
utensils might influence the sensing circuit for vessel displacement.! L, N: L* r9 ~+ K7 X7 Q- O
7.6.8 Electric welding equipment
8 m4 _- g) f6 S$ m. nFor arc welding equipment, the welding operation during the test is simulated by loading the. v$ J8 }% p6 Z( E8 u
equipment with a conventional load. Arc striking and stabilising devices shall be switched off  J7 |$ f( p- b$ X
during the emission measurements. The load conditions and the test configuration for arc
, M; l  M6 _4 v* ]6 P2 ]% jwelding equipment are specified in IEC 60974-10.
9 l2 \- m+ K# x3 g, lFor resistance welding equipment, the welding operation during the test is simulated by shortcircuiting
8 }: e+ T9 Z6 q7 M! v9 ]the welding circuit. The load conditions and the test configuration for resistance% ]- s4 @2 Q4 q- I9 Z, f% d
welding 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  :2 X1 t# Y, f5 U# @, P4 `0 l9 z( h
CISPR 11中，7.6.7有规定测试方法
& O7 V& }7 }0 Y7.6.7 Single and multiple-zone induction cooking appliances
0 ~- |1 E6 G* \2 F1 E3 J& D# eEach cooking zone is operated with an enamelled steel vessel filled with tap water up to 80 %& b; r; G2 I5 I4 Q2 b  F
of its maximum capacity.
0 y% Q/ v: L9 N2 c1 l! }/ {The position of the vessel shall match the hob marking on the plate.0 d& Z/ X( U7 o, j* t* g1 @3 {
.......
1 s4 h' D: I* j* C
欧洲标准应该是EN55014-1吧。: W% h9 ^1 V6 V( p- h9 U
7.3.4.1 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  :
" R& V6 s" u+ x1 K+ {
/ _( d7 e, d  c1 d* p' R
0 S' h0 i5 q9 ?; z  X欧洲标准应该是EN55014-1吧。4 O9 L5 L1 j/ n4 E8 S. E$ V- N
7.3.4.1 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



欢迎光临 安规网 (http://bbs1.angui.org/) Powered by Discuz! X3.2