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施耐德公司的技术资料，关于短路电流计算，使用的方法有： ; i9 K( K# Z% p& t9 g1.Calculation of Isc by the impedance method 7 s( r: T& d" L/ n' e1 Introduction p. 4" ~; f0 h4 L8 x; o) m* k
1.1 The main types of short-circuits p. 5 4 O7 h7 O( k7 W: B4 F! c9 T1.2 Etablishing the short-circuit current p. 7 0 x9 F" B; s! g* U' j1.3 Standardised Isc calculations p. 108 V D# f) s& ], }" g$ V: n
1.4 Methods presented in this document p. 11 % d/ M% o, T0 U- P8 _3 @1.5 Basic assumptions p. 11 " E& C0 b1 @4 b/ ]# [/ p5 p2 Calculation of Isc by the impedance method 2.1 Isc depending on the different types of short-circuit p. 12 ; L3 S, w+ x; n" P5 B ?* ^* c2.2 Determining the various short-circuit impedances p. 13+ E5 W9 o2 I) ?4 p' r N% j
2.3 Relationships between impedances at the different4 T, F _9 n6 m, c8 R; n2 n
voltage levels in an installation p. 18 ) Q! s! p, X% e: G5 B8 {5 j1 B) X& t2.4 Calculation example p. 19; [7 Z- b: x' M ~9 I8 g
3 Calculation of Isc values in a radial 3.1 Advantages of this method p. 234 j z9 d+ Y W0 I- G p. {
3.2 Symmetrical components p. 23 $ @5 ^4 V2 I3 m5 d) j5 b- l' T7 n) K3.3 Calculation as defined by IEC 60909 p. 24* D! ?2 _- h' ]8 {# Q. B4 m
3.4 Equations for the various currents p. 26 5 p1 k4 d% o9 r3.5 Calculation example p. 27 * ?+ P9 S! A; Q( o( U0 |! B4 Computerised calculations and conclusion p. 31: `3 G: @1 ~" Z# i, B
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