1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS C IEC 60076 10 1 10 1: KS C IEC 60076 10 1:2008 2008 11 20 http:/www.kats.go.krKS C IEC 60076 10 1:2008 : ( ) ( ) ( ) : (http:/www.standard.go.kr) : :2008 11 20 2008-0777 : : ( 02-509-7294) (http:/www.kats.go.kr). 10 5 , . KS C IEC 60076 10 1:2008 i . iii
2、 .1 1 1 2 1 3 1 3.1 (sound pressure), p .1 3.2 , u2 3.3 , I.2 3.4 (sound power), W .2 3.5 .2 4 .4 4.1 .4 4.2 .4 4.3 8 4.4 8 5 .9 5.1 .9 5.2 .9 5.3 .10 5.4 11 6 .13 6.1 .13 6.2 13 6.3 15 6.4 16 7 .16 7.1 .16 7.2 17 7.3 17 7.4 18 7.5 .18 7.6 19 8 .19 8.1 .19 8.2 20 8.3 .20 KS C IEC 60076 10 1:2008 ii
3、8.4 .20 8.5 .20 8.6 21 8.7 DC 21 8.8 .21 8.9 .21 8.10 22 8.11 / 22 9 .22 9.1 .22 9.2 .23 9.3 .23 9.4 24 9.5 .25 9.6 26 9.7 .26 9.8 ( A ).26 9.9 ( B )26 A( ) : 3 m .27 B( ) : , .36 KS C IEC 60076 10 1:2008 iii . , , . , , . KS C IEC 60076 10 1:2008 10 1: Power transformers Part 10 1: Determination of
4、 sound levels Application guide (KS) (IS) 2005 1 IEC 60076 10 1, Power transformers Part 10 1: Determination of sound levels Application guide , . 1 KS C IEC 60076 10 . (source) . , . , . . 2 . . ( ) . KS C IEC 60076 10: 2003, 10: 3 3.1 (sound pressure), p ( , ) . ( , ) . , (Hz) . . (hum) 100 Hz 120
5、 Hz , , 3 kHz . 20 Hz 20 kHz . KS C IEC 60076 10 1:2008 2 (Pa) . . 1 kHz 20 Pa . . (dB) . dB , 20 Pa p0 , 0 dB . Lp (1) . 202plg10ppL = (1) p . , . . . . . A weighting , . 3.2 , u . ms 1 . 3.3 , I . . upI = (2) Wm 2 . ( , ). (90 ) , . 3.4 (sound power), W . , . ( ) . . , . . ( ) , . 3.5 3.5.1 KS C I
6、EC 60076 10 1:2008 3 . . 3.5.2 3.5.3 . 3.5.2 . , 6 dB . . , , , . KS C IEC 60076 10 . . 3.5.3 , . . . , . . 3.5.4 (active) (reactive) . . , . , . , . 90 . . . . , . , . 3.5.5 . , , f d . dcf2= (3) c m/s . 20 , c = 343 m/s . . . , . KS C IEC 60076 10 1:2008 4 3.5.6 , 1/4 . , . . 20 100 Hz 3.4 m , 1 k
7、Hz 0.34 m . 4 4.1 . . . 4.2 4.2.1 . . , 10 7 10 5 . 1 5 . Bmax 50 Hz . 1 Bmax= 1.2 T1.9 T 50 Hz , . . . , . . 2 B = 1.8 T, 50 Hz . ( ) , 5 ms 15 ms . T m/m KS C IEC 60076 10 1:2008 5 , 2 ( ) . ( ) . , . 2 ( ) ( ):1.8 T, 50 Hz , . , . 3 . 3 :1.8 T, 50 Hz 0.1 T, 0 Hz 360 , 50 Hz 20 ms , . 4 . . , ms T
8、 m/m T m/m KS C IEC 60076 10 1:2008 6 4 ( ) ( );1.8 T, 50 Hz 0.1 T, 0 Hz . , . . . 5 . X Y dB(A) 5 5 . , , . , ms T m/m KS C IEC 60076 10 1:2008 7 4.2.2 . , . , . , . . , . . . . 6 . . , . (4.4 ). , . , . KS C IEC 60076 10 6.3 . , HVDC . 6 4.2.3 . , . . , . . , HzAdB(A) KS C IEC 60076 10 1:2008 8 (
9、). . ( ) . . , . . 4.2.4 . , . . . 4.2.5 , . , , . 4.2.6 , , . 4.3 , , . , . , . , . , . . , . KS C IEC 60076 10 . . , , . , 1 km . 4.4 , (4) . KS C IEC 60076 10 1:2008 9 220xcSW = (4) W : (W) 0 : (kg/m3) c : (m/s) S : (m2) : ( ). . x : (m/s) = 2f : (s 1) x : (m) . . . 5 5.1 . KS C IEC 60076 10 8. 9. , . . , . , KS C IEC 60076 10 . 6. . 5.2 . . , , , . . , . , . ( 20 Hz 20 kHz) , . , A . , B , C , D . , . , . KS C IEC 60076 10 1:2008 10 5.3 . . . (Euler) , ( , ). . . , . , . , ( ) (5) . rpa=1(5) a r p . , u (6) . dt1=rpu