Calculating short-circuit currents in panelboard bus, taking into account the feeder and motors contribution; in accordance with ANSI IEEE Std 551-2006.Calculations based on the following assumptions:•Three-phase ac system, balanced, 60 Hz.•Three-phase bolted fault.•The values of short-circuit current are in terms of RMS symmetrical amperes.•Only considers the contribution of induction motors.•Motors contribution is on the basis of percentage of the total load.Specify the necesary data for:-The utility system.-The secondary unit substation transfomer-The feeder (allows conductors in parallel)-The load (total load and motors load in %)The app suggests typical values for short-circuit duty (MVA) and the X/R ratio of the utility system, also suggests the value of Z% for the transformer, but the user can specify the value of nameplate
免費玩Sym Current APP玩免費
免費玩Sym Current App
Sym Current APP LOGO
Sym Current APP QRCode
| 熱門國家 | 系統支援 | 版本 | 費用 | APP評分 | 上架日期 | 更新日期 |
|---|---|---|---|---|---|---|
| 未知 | iOS App Store | 1.0 App下載 | $2.99 | 2013-05-21 | 2015-06-03 |
