Research Article
Energy Harvesting from the Stray Electromagnetic Field around the Electrical Power Cable for Smart Grid Applications
Table 2
Dimension and parameters of developed energy harvester prototypes.
| Harvester’s type | Description | Prototype-1 | Prototype-2 | Prototype-3 | Prototype-4 | Prototype-5 |
| Inductive energy harvester | Material | Mild steel | Mild steel | Mild steel | Mild steel | Mild steel | Core’s height | 9 cm | 4.5 cm | 3.5 cm | 3.5 cm | 9 cm | Core’s sheet length | 6.9 cm | 6.9 cm | 20 cm | 6.9 cm | 6.9 cm | Number of turns of copper coil | 750 | 600 | 1300 | 400 | 450 | Coil’s resistance | 20.1 | 7.5 | 14.3 | 4.4 | 10.1 |
| Capacitive energy harvester | Spacer material | Teflon | Teflon | — | — | Teflon | Outer diameter | 5 cm | 5 cm | — | — | 5 cm | Inner diameter | 2 cm | 2 cm | — | — | 2 cm | Thickness | 0.7 cm | 0.7 cm | — | — | 0.6 cm |
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