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Figure from:Application of fault current limitation techniques in a transmission system

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In addition to splitting the busbars at Rusail power plant as shown in option 2, the 132 kV busbars at MSQ are split into two groups as shown in Fig. 4.

Figure 4 In addition to splitting the busbars at Rusail power plant as shown in option 2, the 132 kV busbars at MSQ are split into two groups as shown in Fig. 4.

Related Figures (7)

Fig. 1. Main Electricity Transmission System of Oman. B. Transformers
Fig. 1. Main Electricity Transmission System of Oman. B. Transformers
THREE-PHASE SHORT CiRCUIT LEVELS Ix” (kA) TABLE I
THREE-PHASE SHORT CiRCUIT LEVELS Ix” (kA) TABLE I
SAMPLE OF PERCENTAGE TRANSFORMER LOADINGS (%)
SAMPLE OF PERCENTAGE TRANSFORMER LOADINGS (%)
Fig. 5. Fault current limiting reactors in 2013. Fig. 5 shows this arrangement. A group of fault current limiting reactors will be installed between the new and old Ghubrah busbars. Another group of reactors will be inserted in the 132 kV underground cable lines between new Ghubrah and MSQ grid stations. The fault current levels at all busbars in the grid will be within the corresponding equipment short- circuits rating, thus removing the high fault current problem completely.
Fig. 5. Fault current limiting reactors in 2013. Fig. 5 shows this arrangement. A group of fault current limiting reactors will be installed between the new and old Ghubrah busbars. Another group of reactors will be inserted in the 132 kV underground cable lines between new Ghubrah and MSQ grid stations. The fault current levels at all busbars in the grid will be within the corresponding equipment short- circuits rating, thus removing the high fault current problem completely.