内容介绍:; ~5 t; g1 k( Y. ]. m5 t/ s
施耐德公司的技术资料,关于短路电流计算,使用的方法有:- P; r. h! [9 ?8 O2 d, E
1.Calculation of Isc by the impedance method - b9 y, y V! p$ j; I. V1 Introduction p. 4. Z% S% R) E Z) e- a5 c) l* V
1.1 The main types of short-circuits p. 50 M3 A4 [' e# i
1.2 Etablishing the short-circuit current p. 7 " I9 c7 P2 ?+ T' y5 J7 y1.3 Standardised Isc calculations p. 10 ( X: `& j7 v' A! k: H1.4 Methods presented in this document p. 11 9 p2 b) P) }/ V ~$ U3 h: C: i1.5 Basic assumptions p. 11/ S4 X7 ]" I' U5 s- C) s# j
2 Calculation of Isc by the impedance method 2.1 Isc depending on the different types of short-circuit p. 12 ) b- ^; Q) C" @8 C2.2 Determining the various short-circuit impedances p. 13 3 T0 U4 P( R0 V4 S0 n: \# x2.3 Relationships between impedances at the different7 U4 Z" h9 Q6 b/ X2 O$ ]9 s
voltage levels in an installation p. 18 F" y6 H8 k8 ^2 F! K% j* R2 }
2.4 Calculation example p. 19) R) d! y R, M' t: \* e. j' K
3 Calculation of Isc values in a radial 3.1 Advantages of this method p. 23" q* |! G, ^) ^/ k/ _: D
3.2 Symmetrical components p. 23 : q/ V/ L0 Y% y* M# u- T% y5 b3.3 Calculation as defined by IEC 60909 p. 24 ) {& A9 e- E' \& i/ Y3.4 Equations for the various currents p. 26 ( k# X; T4 Q& F# e7 U9 X; L' G3.5 Calculation example p. 27 " ~4 W/ d7 D) S/ p/ I4 Computerised calculations and conclusion p. 31 6 @( |, l5 E/ x- m5 M2 V- Z $ z' c2 j" J2 |: E+ g- d! O4 S! ^总共36页,贴近实际应用。-%-18926-%--%-18953-%--%-18986-%-