A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu?

Power Systems
A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu?

1.375 pu

2.4 pu

3.975 pu

0.2 pu

1.375 pu

2.4 pu

3.975 pu

0.2 pu

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Power Systems
The power output from an hydroelectric plants depend on

type of turbine, type of dam and type of catchment area.

discharge, system efficiency.

type of dam, head, system efficiency.

type of dam, type of catchment area and discharge.

type of turbine, type of dam and type of catchment area.

discharge, system efficiency.

type of dam, head, system efficiency.

type of dam, type of catchment area and discharge.

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Power Systems
Peak load power plants is/are

nuclear plants

pumped storage plant

diesel plant

both 1 and 2

nuclear plants

pumped storage plant

diesel plant

both 1 and 2

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Power Systems
The per unit impedance of a circuit element is 0.30. If the base kV and base MVA are halved, then the new value of the per unit impedance of the circuit element will be

0.60

0.0060

0.30

0.0030

0.60

0.0060

0.30

0.0030

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Power Systems
Critical visual voltage is the voltage at which

corona is visible with blue or violet colour

both 1 and 2

None of these

corona is just initiated

corona is visible with blue or violet colour

both 1 and 2

None of these

corona is just initiated

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Power Systems
The VSWR of transmission line is

Proportional to load and characteristic impedance.

Directly proportional to load impedance and inversely to characteristic impedance.

Directly proportional to characteristic impedance and inversely to load impedance.

Directly proportional to voltage minimum and inversely proportional to voltage maximum.

Proportional to load and characteristic impedance.

Directly proportional to load impedance and inversely to characteristic impedance.

Directly proportional to characteristic impedance and inversely to load impedance.

Directly proportional to voltage minimum and inversely proportional to voltage maximum.

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Power Systems

Power Systems A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu?

Power Systems The power output from an hydroelectric plants depend on

Power Systems Peak load power plants is/are

Power Systems The per unit impedance of a circuit element is 0.30. If the base kV and base MVA are halved, then the new value of the per unit impedance of the circuit element will be

Power Systems Critical visual voltage is the voltage at which

Power Systems The VSWR of transmission line is

Power Systems
A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu?

Power Systems
The power output from an hydroelectric plants depend on

Power Systems
Peak load power plants is/are

Power Systems
The per unit impedance of a circuit element is 0.30. If the base kV and base MVA are halved, then the new value of the per unit impedance of the circuit element will be

Power Systems
Critical visual voltage is the voltage at which

Power Systems
The VSWR of transmission line is