Back flashover is one of the consequences of a direct lightning strike. Back flashover is caused by the higher grounding resistance value of the tower leg. Doing so can create an overvoltage and can cause damage to electrical equipment. One way to minimize overvoltage due to back flashover is to adjust the grounding resistance at the foot of the tower. Tower 10 has a grounding resistance value …
- Galat dalam Komputasi Numerikr - Sistem persamaan Linierr - Interpolasi, dll
This paper studies the number of lightning strikes in the rocky area tower on the 150 kV Payakumbuh-Koto Panjang transmission line. The intensity of the lightning trip-out on the 150kV transmission line is very high, amounting to 66%. The results showed a positive correlation between lightning trip-outs and the tower-footing resistance in rocky areas. The significant cause of trip-out is back…
Single-phase induction (asynchronous) motors are widely used at home. These motors have two windings and usually operate at a lower performance than 3-phase asynchronous motors which have three windings. For this reason, this study aims to design a new winding of a single-phase asynchronous motor by increasing the number of phases in the motor windings in order to increase the performance of th…
The number of lightning stroke on the tower of the 150 kV Koto Panjang-Payakumbuh transmission line located the rocky area has been observed. The high value of tower footing resistance indicates the occurrence of the back-flashover in the transmission line at intensity of 74%. The back-flashover occurrence is dominantly triggered by the tower footing resistance value. Also, the rate of back-fla…
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