1、 KSKSKSKS KS C IEC 60270SKSKSKS KSKSKS SKSKS KSKS SKS KS KS C IEC 60270: 2006 2006 3 20 C IEC 60270:2006 ( ) ( ) ( ) ( ) : :2006 3 20 20060108 : : ( ) ( 02 5097297 7300) . 7 5 , . ICS 17.220.20; 19.080 KS C IEC 60270:2006 High-voltage test techniques Partial discharge measurements 2000 3 IEC 60270 H
2、igh-voltage test techniquesPartial discharge measurements . 1. 400 Hz , , . . . . . (calibration) . . (external interference) . . ( ) ( F ). ( E ) ( F ). 11. . , , , . A (calibrator) . 2. . . KS C IEC 60060 1 1: KS C IEC 60060 2 2: KS C CISPR 16 1:2002 1: 3. . C IEC 60270:2006 3.1 (PD:partial discha
3、rge) , . 1. . 1 s . (pulse-less) . . 2. “(Corona)” . “ ” . 3. , , . F . 3.2 (PD pulse) . (detector circuit) . . . 3.3 (quantities) 3.3.1 q (apparent charge q) . (pC) . . 3.3.2 n (pulse repetition rate n) . 3.3.3 N (pulse repetition frequency N ) N . 3.3.4 i t i(phase angle iand time t iof occurrence
4、 of a PD pulse) =360(t /T) i i t: iT: ( ) . 3.3.5 I (average discharge current I ) Tref q iref1TI = ( | q1 | | q2| . | q | ) i (C/s) (A) . 3.3.6 P (discharge power P ) T qref i ref1TP = (q1u1 q2u2 . q u ) i i2 C IEC 60270:2006 u1, u . u q2 i i ti . . (W) . 3.3.7 D (quadratic rate D) T qref i )(12m22
5、21refqqqT+KD = (C2/s ) . 3.3.8 (radio disturbance meter) KS C CISPR 16 1 B . 3.3.9 URDV(radio disturbance voltage URDV) q . 4.5.6 D . URDV V . 3.4 (largest repeatedly occurring PD mag nitude) 4.3.3 . 3.5 (specified partial discharge magnitude) . q . . , , . 3.6 (background noise) , . G . 3.7 (applie
6、d test voltages related to pa rtial discharge pulse quantities) KS C IEC 60060 1 . . 3.7.1 Ui(partial discharge inception voltage Ui) Ui . U 11. . i3.7.2 Ue(partial discharge extinction voltage Ue) Ue . Ue 11. . 3 C IEC 60270:2006 3.7.3 (partial discharge test voltage) . . 3.8 (partial discharge mea
7、suring system) , , 3.9 (measuring system characteristics) 4.3 . 3.9.1 Z (f )transfer impedance Z (f ) f , 3.9.2 f1, f2(lower and upper limit frequencies f1and f2) Z( f ) 6 dB 3.9.3 fm f (midband frequency fmand bandwidth f ) . 221mfff+= 12fff = 3.9.4 (superposition error) . . . . 100 % . 3.9.5 Tr (p
8、ulse resolution time Tr) 10 % , , , f . . . 3.9.6 (integration error) 5 . f1, f2 . 3.10 (digital partial discharge instruments) q , . , , . E . 4 C IEC 60270:2006 . . 3.11 k (scale factor k ) (KS C IEC 60060 2, 3.5.1) 4. 4.1 . 5. 7. . . . 4.2 4.3 . (3.9.2, 3.9.5 f1, f2, Tr) 11. . 4.2 1 a) d) . 2 3 .
9、 . . Ca ( C ). Ck C C . Ca1 a1 k Ca1 . , . ( .) (9. 10. ) (9. 10. ) 1 3 Ca Ck . 1 a) . B G . 4.3 4.3.1 . , ( , ), . . 4.3.2 . 5 C IEC 60270:2006 . (quadripole) . . . 1. Ck Ca , . 2. . 4.3.3 ( 5 ) f . , , Z( f ) . . (10. ). . . 0.44 s , . . N q0 R . N = 100 100 % . 5. . 1 N(1/s): 1 2 5 10 50 100 R (%
10、): 35 55 76 85 94 95 minR (%): 45 65 86 95 104 105 max 1. . . . R(N) . 2. , . 3. . 4. . 5. . 4.3.4 f1, f2 f1 f2 Z( f ) . f1, f2, f . 30 kHz f1 100 kHz 6 C IEC 60270:2006 f2 500 kHz 100 kHz f 400 kHz . . ( ) . q . Tr 520 s . 4.3.5 . . . 1 s . 10 s . kHz . 4.3.6 f f . f f . m m9 kHz f 30 kHz 50 kHz f
11、1 MHz m f f Z( f ) 20 dB . m 1. f 1 MHz fm m 1 MHz f . m2. . fm . 3. q . . Tr 80 s . 4.4 . 4.3.3 . . t qi i q t ui i i t i i 4.4.1 q 1 s . . 7 C IEC 60270:2006 . . . E . 4.4.2 KS C IEC 60060 2 . 5 . 4.5 4.5.1 4.3.2 . 4.5.2 n Tr . . . 4.3 . 2 . 4.5.3 I I . . n Tr . . I n . ( ). . . 4.5.4 P . x, y u(t) qiqui i . . . 4.5.5 D qi D . . . 4.5.6 . 8 C IEC 60270:2006 . 5. q .