The positive, negative and zero sequence per unit impedance of two generators connected in parallel are X1 = 0.12 pu, X2 = 0.096 pu and X0 = 0.036 pu. For LG fault at generator terminals (with 1 pu voltage) the positive sequence current will be

Power Systems
The positive, negative and zero sequence per unit impedance of two generators connected in parallel are X1 = 0.12 pu, X2 = 0.096 pu and X0 = 0.036 pu. For LG fault at generator terminals (with 1 pu voltage) the positive sequence current will be

7.936 pu

8.936 pu

10.936 pu

9.936 pu

7.936 pu

8.936 pu

10.936 pu

9.936 pu

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
A 3-phase, 110 kV coaxial XLPE insulated power cable delivering power at 50 Hz, has a capacitance of 125 nF/km. If the dielectric loss tangent of XLPE is 2*10^-4, then dielcetric power loss in this cable in W/km/phase is

31.7

38.6

35.45

23.9

31.7

38.6

35.45

23.9

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
Mechanical energy is supplied to a DC generator at the rate of 4200 J / S. The generator delivers 32.2 Amp at 120 V. How much energy is cost per minute of operation

20160 J.

25060 J.

23060 J.

20060 J.

20160 J.

25060 J.

23060 J.

20060 J.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
If a generator of 250 MVA rating has an inertia constant of 6 MJ/MVA, its inertia constant on 100 MVA base is

6 MJ/MVA

15 MJ/MVA

2.5 MJ/MVA

10.5 MJ/MVA

6 MJ/MVA

15 MJ/MVA

2.5 MJ/MVA

10.5 MJ/MVA

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
In a 3-phase, 5 kV, 5 MVA system, what is the base impedance?

5 ohms

500 ohms

50 ohms

0.5 ohm

5 ohms

500 ohms

50 ohms

0.5 ohm

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Power Systems
Keeping in view the cost and overall effectiveness, the following circuit breaker is best suited for capacitor bank switching?

SF6 CB.

Oil CB.

Air blast CB.

Vacuum CB.

SF6 CB.

Oil CB.

Air blast CB.

Vacuum CB.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems

Power Systems The positive, negative and zero sequence per unit impedance of two generators connected in parallel are X1 = 0.12 pu, X2 = 0.096 pu and X0 = 0.036 pu. For LG fault at generator terminals (with 1 pu voltage) the positive sequence current will be

Power Systems A 3-phase, 110 kV coaxial XLPE insulated power cable delivering power at 50 Hz, has a capacitance of 125 nF/km. If the dielectric loss tangent of XLPE is 2*10^-4, then dielcetric power loss in this cable in W/km/phase is

Power Systems Mechanical energy is supplied to a DC generator at the rate of 4200 J / S. The generator delivers 32.2 Amp at 120 V. How much energy is cost per minute of operation

Power Systems If a generator of 250 MVA rating has an inertia constant of 6 MJ/MVA, its inertia constant on 100 MVA base is

Power Systems In a 3-phase, 5 kV, 5 MVA system, what is the base impedance?

Power Systems Keeping in view the cost and overall effectiveness, the following circuit breaker is best suited for capacitor bank switching?

Power Systems
The positive, negative and zero sequence per unit impedance of two generators connected in parallel are X1 = 0.12 pu, X2 = 0.096 pu and X0 = 0.036 pu. For LG fault at generator terminals (with 1 pu voltage) the positive sequence current will be

Power Systems
A 3-phase, 110 kV coaxial XLPE insulated power cable delivering power at 50 Hz, has a capacitance of 125 nF/km. If the dielectric loss tangent of XLPE is 2*10^-4, then dielcetric power loss in this cable in W/km/phase is

Power Systems
Mechanical energy is supplied to a DC generator at the rate of 4200 J / S. The generator delivers 32.2 Amp at 120 V. How much energy is cost per minute of operation

Power Systems
If a generator of 250 MVA rating has an inertia constant of 6 MJ/MVA, its inertia constant on 100 MVA base is

Power Systems
In a 3-phase, 5 kV, 5 MVA system, what is the base impedance?

Power Systems
Keeping in view the cost and overall effectiveness, the following circuit breaker is best suited for capacitor bank switching?