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本帖最后由 chinatown 于 2017-1-7 11:25 编辑
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Question% Y' G- B6 E$ F) u
How many samples shall be subjected to the individual type tests according to clause 6.2 of IEC
& t# O% [ ]: ]$ W! N9 Q/ F60831-1 for shunt power capacitors?
) F r2 _2 x. u6 l$ N- F; a& s! H6 JDecision. Q z6 T, u+ a$ p$ Q. W. E& W, p
For the performance of a type test on shunt power capacitors according to IEC 60831-1 the following
5 N( _5 k' F2 ztype test schedule shall be applied:
; G5 f7 h1 n0 k: e8 q+ CType test schedule:* l- ^0 o) m) ^& t! e: o' ]# b
Tests Subclause Number of samples to be inspected
0 Q: Y/ U& ^/ M: U8 c2 R" zSingle-phase
( h- u/ ^( M2 E) N' \" wunits
2 ~; i* O+ o* M7 }6 j" yThree-phase units1 F- D' z3 }/ N! N5 U
≤ 10 kvar > 10 kvar: x7 o7 s* P+ c$ \( Y' [
Thermal stability test 13 1 1 1. h4 O1 E1 U# X# q
Measurement of the tangent of the loss angle (tan δ)
8 x' S2 [/ g q3 Y2 k2 B J4 jof the capacitor at elevated temperature2 j/ Z7 V" v$ w
14 1 1 1& k) h' P2 c2 S4 k5 t; p
Voltage test between terminals 9.2 5 5 3# T; k1 y, e s# Y# P
Voltage test between terminals and container 10.2 5 5 3
% e. F% ]* ?- g, k, h2 r' e3 G7 [Lightning impulse voltage test between terminals and. c$ d9 X7 \4 [( c
container7 c2 y5 q8 K1 \; ]+ \* y* g
15 5 5 3
) e3 \$ F: ]9 kDischarge test 16 3 3 3, |% `& M. \; r# e& ?
Ageing test 17 5 3 2. W# D& N# t; P* [3 ~% t# g
Self-healing test 18 5 3 3: N7 S9 ^1 V9 r
Destruction test 19 5 3 2+ \+ z2 B2 d* {' `
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发表于 2017-1-7 11:22
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