hree-phase gas pressure cable (Draw, Identify and Mark all the parts)
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- Three phase gas pressure cable (Draw, Identify and Mark all the parts)a) Determine total admittance and impedance. b) Draw admittance diagram and impedance diagram. c) Determine the values of C and L. d) Determine the voltage ?? ⃗ and the currents ?? (Se image ! last task)What is the colour of neutral conductor in single -phase a.c. supply, a. Orange O b. Red O c. Black O d. Green
- Identify the installation symbol O Two way One gang switch O Two way Two gang switch O One way Two gang switch O One way One gang switch5. Magnetically-Coupled circuitLighting arresters are used in power system to protect electrical equipment against a. Direct stokes of lightning b. Over-voltages due to indirect lightning stroke c. Power frequency over-voltages d. Over-currents due to lightning
- e = 0 Q1: What does happen if we change two currents? a. Q2: What does happen if we have a three-phase four poles machine? Q3: What does happen if we have a two-phase two poles machine? e = 0 Q4: What does happen if we apply a capacitance in phase b and then use same voltage for both phase. Dr. Ali Ki. pw --3. The zero sequence current is times the current in neutral wire.Draw a block diagram of a phase-locked loop (PLL) and briefly explain its operation.
- Voltage control method connected across the load, to supply part of VAR required is ..... O Shunt capacitor O tap changing transformer O series capacitor O booster transformerExplain the concept of power quality and the impact of voltage sags, harmonics, and other issues on electrical equipment.The arc across the contacts of circuit breaker will re-strike, if the rate of rise of re-striking voltage is greater than the rate of rise of dielectric strength between the contacts?" O True O False