内容介绍:* Y8 E5 l9 k2 l
施耐德公司的技术资料,关于短路电流计算,使用的方法有:5 K8 L3 q. T5 ]6 F2 _7 i9 ]
1.Calculation of Isc by the impedance method 6 r, S6 ]: F1 M# M1 Introduction p. 4 1 K+ r( C* o2 t% d# ^. \( ~1.1 The main types of short-circuits p. 5" w' B5 ~5 S& P- L y9 z
1.2 Etablishing the short-circuit current p. 7 J0 G7 o# T# ~$ _. R- y: J
1.3 Standardised Isc calculations p. 10 % O9 Z1 `, Y& i1.4 Methods presented in this document p. 114 d, x% k# _, @7 w
1.5 Basic assumptions p. 11 - E% u* E& }2 ]2 Calculation of Isc by the impedance method 2.1 Isc depending on the different types of short-circuit p. 127 b4 ~( V8 L4 w4 G, l8 c9 ~! ^
2.2 Determining the various short-circuit impedances p. 13 9 ~6 c) v @( y, `2.3 Relationships between impedances at the different* A( G) W7 a T6 r' c u
voltage levels in an installation p. 18% d' ~3 G) N" ~ X6 N9 x: l, x5 g. j
2.4 Calculation example p. 19; h8 u! m% l& j( F4 V: Z% ~
3 Calculation of Isc values in a radial 3.1 Advantages of this method p. 23 9 ~) b& a! @2 X$ s4 e5 v2 l* g3.2 Symmetrical components p. 23 d# y+ D) d8 w% R+ x1 Z
3.3 Calculation as defined by IEC 60909 p. 24 ) @, @3 A2 h, s3.4 Equations for the various currents p. 26 ! Y' P4 n6 {3 x3.5 Calculation example p. 27 # h3 h* g) h T4 Computerised calculations and conclusion p. 31 + D" M4 S5 I4 `- h3 U" C$ l" d3 {. r
总共36页,贴近实际应用。-%-18926-%--%-18953-%--%-18986-%-