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本帖最后由 chinatown 于 2017-1-7 11:25 编辑
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' X; E9 f2 }2 M& f FQuestion
1 a6 N; v C5 B0 P7 K- ^& ^/ pHow many samples shall be subjected to the individual type tests according to clause 6.2 of IEC: _$ J0 ?! \* z
60831-1 for shunt power capacitors?
) W3 E5 [% K- D; Y5 rDecision5 @5 F$ _+ d. C7 s; Q% [3 r* O
For the performance of a type test on shunt power capacitors according to IEC 60831-1 the following: a) N9 `0 L6 U0 X. k: r- s
type test schedule shall be applied:, K% m- \% q% O
Type test schedule:; l" Q% t |2 b% K
Tests Subclause Number of samples to be inspected$ q7 z |/ E3 E1 f
Single-phase& {5 p. u* R5 c0 } F
units4 n9 G( U( F0 b0 V
Three-phase units
; S0 J f. y: ^, @3 K8 H≤ 10 kvar > 10 kvar; `- w1 Z' }* ]6 y& x- c
Thermal stability test 13 1 1 1
- U$ \5 s- {$ L# Z. h: BMeasurement of the tangent of the loss angle (tan δ)
0 A. O) O& ]3 c1 g( Dof the capacitor at elevated temperature
5 {! Z" M* Q5 {14 1 1 1
) u g3 k" i8 Y5 aVoltage test between terminals 9.2 5 5 3
3 `. U' Y4 @0 P+ oVoltage test between terminals and container 10.2 5 5 3
. D, W% {3 ~+ R7 p! n" ^2 SLightning impulse voltage test between terminals and
, z! \6 {1 o/ y4 E4 W9 ~container: r9 U: U* p5 v3 G6 k9 W: {* Q: Q- G
15 5 5 3, }6 @# J F( `" M+ c9 M D
Discharge test 16 3 3 3' v) L6 a. s8 i& M9 W% i0 f: G" T
Ageing test 17 5 3 2/ u5 I5 X* l) H' Z1 K5 ^' T
Self-healing test 18 5 3 3( X8 x6 R. H6 D7 [* c; `: ^" `, }
Destruction test 19 5 3 2" X! Y; D' g3 C
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发表于 2017-1-7 11:22
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