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Generator 13800V 12MVA Wye grounded Xd" = 0.17, Xd'=0:30, and...
1. A three-phase synchronous generator connected to a 345-KV transmission line through a transformer as shown...
1. A three-phase synchronous generator connected to a 345-KV transmission line through a transformer as shown in Figure P1. Parameters of both generator and transformer are given in the figure. Transformer losses and exciting current are neglected. A three-phase short-circuit occurs on the line side of the circuit breaker when the generator is operated at rated terminal voltage and at no-load. The breaker interrupts the fault three cycles after fault inception. Neglect the effect of the transformer on the time...
Zone 1 Zone 3 Zone 2 Xice j1002 BE SO MW 0.8 pf lagging Vload =...
Zone 1 Zone 3 Zone 2 Xice j1002 BE SO MW 0.8 pf lagging Vload = 30 kV Ti 50 MVA 11/132 kV X= 10% Tz 50 MVA 132/33 kV X=12% Figure 1 2. A 500 MVA, 20 kV, 50 Hz synchronous generator with reactances Xd" = 0.15, Xá = 0.24, Xo = 1.1 p.u. and time constant To = 0.035, Tó' = 2.0, TA = 0.2 seconds is connected to a circuit breaker. The generator is operating at 5%...
A single line diagram of a power system is shown in Fig. 2. The system data with equipment ratings and assumed sequence reactances are given the following table. The neutrals of the generator and A-Y...
A single line diagram of a power system is shown in Fig. 2. The system data with equipment ratings and assumed sequence reactances are given the following table. The neutrals of the generator and A-Y transformers are solidly grounded. The motor neutral is grounded through a reactance Xn 0.05 per unit on the motor base. Assume that Pre-fault voltage is takin as VF-1.0 ,0° per unit and Pre- fault load current and Δ-Y transformer phase shift are neglected In the...
2. A single-line diagram of the power system considered is shown in Figure P2a, where negative-...
2. A single-line diagram of the power system considered is shown in Figure P2a, where negative- and zero-sequence reactances are also given. The neutrals of the generator and A-Y transformers are solidly grounded. The motor neutral is grounded through a reactance Xn = 0.05 per unit on the motor base. The per-unit zero-, positive and negative-sequence networks on a 100-MVA is shown in Figure P26, 13.8-kV base in the zone of the generator. a. Reduce the sequence networks to their...
note: Please write with clear handwriting and show clearly the steps, and please solve it same...
note: Please write with clear handwriting and show clearly the
steps, and please solve it same as the book approach
Book: power system analyses and design 6th edition by sarma
7.31 A three-phase circuit breaker has a 15.5-kV rated maximum voltage, 9.0-KA rated short-circuit current, and a 2.50-rated voltage range factor. (a) Determine the symmetrical interrupting capability at 10-kV and 5-kV operating voltages. (b) Can this breaker be safely installed at a three- phase bus where the symmetrical fault current...
Please show all the clearly step A 500 MVA, 24 kV, 60 Hz three-phase synchronous generator...
Please show all the clearly step
A 500 MVA, 24 kV, 60 Hz three-phase synchronous generator is operating at rated voltage and frequency with a terminal power factor of 0.8 lagging. The synchronous reactance X 0.8. Stator coil resistance is negligible. The internally generated voltage E,-18 kv a) Draw the per phase equivalent circuit. b) Determine the torque (power) angle 5, c) the total output power, d) the line current.
1. A three-phase synchronous generator connected to a 345-KV transmission line through a transformer as shown in Figure P1. Parameters of both generator and transformer are given in the figure. Transformer losses and exciting current are neglected. A three-phase short-circuit occurs on the line side of the circuit breaker when the generator is operated at rated terminal voltage and at no-load. The breaker interrupts the fault three cycles after fault inception. Neglect the effect of the transformer on the time...
Zone 1 Zone 3 Zone 2 Xice j1002 BE SO MW 0.8 pf lagging Vload = 30 kV Ti 50 MVA 11/132 kV X= 10% Tz 50 MVA 132/33 kV X=12% Figure 1 2. A 500 MVA, 20 kV, 50 Hz synchronous generator with reactances Xd" = 0.15, Xá = 0.24, Xo = 1.1 p.u. and time constant To = 0.035, Tó' = 2.0, TA = 0.2 seconds is connected to a circuit breaker. The generator is operating at 5%...
A single line diagram of a power system is shown in Fig. 2. The system data with equipment ratings and assumed sequence reactances are given the following table. The neutrals of the generator and A-Y transformers are solidly grounded. The motor neutral is grounded through a reactance Xn 0.05 per unit on the motor base. Assume that Pre-fault voltage is takin as VF-1.0 ,0° per unit and Pre- fault load current and Δ-Y transformer phase shift are neglected In the...
2. A single-line diagram of the power system considered is shown in Figure P2a, where negative- and zero-sequence reactances are also given. The neutrals of the generator and A-Y transformers are solidly grounded. The motor neutral is grounded through a reactance Xn = 0.05 per unit on the motor base. The per-unit zero-, positive and negative-sequence networks on a 100-MVA is shown in Figure P26, 13.8-kV base in the zone of the generator. a. Reduce the sequence networks to their...
note: Please write with clear handwriting and show clearly the
steps, and please solve it same as the book approach
Book: power system analyses and design 6th edition by sarma
7.31 A three-phase circuit breaker has a 15.5-kV rated maximum voltage, 9.0-KA rated short-circuit current, and a 2.50-rated voltage range factor. (a) Determine the symmetrical interrupting capability at 10-kV and 5-kV operating voltages. (b) Can this breaker be safely installed at a three- phase bus where the symmetrical fault current...
Please show all the clearly step
A 500 MVA, 24 kV, 60 Hz three-phase synchronous generator is operating at rated voltage and frequency with a terminal power factor of 0.8 lagging. The synchronous reactance X 0.8. Stator coil resistance is negligible. The internally generated voltage E,-18 kv a) Draw the per phase equivalent circuit. b) Determine the torque (power) angle 5, c) the total output power, d) the line current.
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