Member
Join Date: Apr 2008
Posts: 6
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| 410 Amps |
| 0.989 Ohms / Km |
| 0.071 Ohms / Km |
| = | √ (R2 + X2) |
| = | 0.1217 Ohms / Km |
| = | Allowable current (I) x Imbedance (Z) |
| 410 x 0.1217 |
| = |
49.89 Volt / Km |
| = | V x % voltage drop x 1000 |
| Voltage drop / Km |
| 460 x 0.025 x 1000 |
| 49.89 |
| = |
230.5 mts |
| of the cable | = | Voltage x voltage drop x 1000 |
| Required length x Cable Imbedance / Km |
| = | 460 x 0.025 x 1000 | 460 x 0.025 x 1000 |
| 100 x 0.1217 | 230.5 x 0.1217 |
| = |
944 Amps |
409.9 Amps |
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calculating cable size
Re: calculating cable size
