内容介绍:6 S6 F1 d0 \7 f1 P
施耐德公司的技术资料,关于短路电流计算,使用的方法有: , @% J; Z8 f/ m1.Calculation of Isc by the impedance method# U* a4 D9 F% V, s0 q+ A
1 Introduction p. 4 - D T, U- T' ~) \1.1 The main types of short-circuits p. 5 " ]# p) M2 a. X" M+ X6 b1.2 Etablishing the short-circuit current p. 7 ( U! @. A! B- Q# z1.3 Standardised Isc calculations p. 10 8 @4 ]" w% w7 B% `9 C1.4 Methods presented in this document p. 11 ( @1 S& {# e8 V" v$ Z6 \1.5 Basic assumptions p. 11% \* M; R: d, {6 G5 c4 f
2 Calculation of Isc by the impedance method 2.1 Isc depending on the different types of short-circuit p. 126 N% _# G) ?: V
2.2 Determining the various short-circuit impedances p. 13 a; W/ @: T+ i7 Y, K
2.3 Relationships between impedances at the different h& @; | d: R6 T. Bvoltage levels in an installation p. 18/ b. O* W" a/ h0 d) l
2.4 Calculation example p. 19 , x5 r; |( E) b, l) a: P3 Calculation of Isc values in a radial 3.1 Advantages of this method p. 23; o; H: b$ z6 _1 O
3.2 Symmetrical components p. 23 / @- L! x6 [# P; W, r* D( o2 K3.3 Calculation as defined by IEC 60909 p. 24 7 ~1 w* g) s8 t5 K- e: E9 t- P3.4 Equations for the various currents p. 26 . y0 d- Z$ ]! I7 {/ A: s3.5 Calculation example p. 27+ j6 q+ n, t5 R0 @1 p1 W8 \6 B% m
4 Computerised calculations and conclusion p. 31 & c& T9 [5 \$ S5 I4 R" [- `) O) [( q2 c# @9 _
总共36页,贴近实际应用。-%-18926-%--%-18953-%--%-18986-%-