# A lightening arrester connected between the line and earth in a power system protects the terminal equipment

19 views
A lightening arrester connected between the line and earth in a power system

(1) protects the terminal equipment against travelling surges (2) protects the transmission line against direct lightening strokes (3) suppresses high frequency oscillations in the line (4) reflects back the travelling wave approaching it

A lightening arrester connected between the line and earth in a power system protects the terminal equipment against travelling surges

## Related questions

A thyrite type lightening arrester :

What is the difference between a line voltage and low voltage control system?

The reactive power transfer over a line mainly depends on

The line current in a balanced delta system is 30 A. The load current is (A) 30√3 A (B) 30/√3 A (C) 10 A (D) 30/√2 A

For a 15-bus power system with 3 voltage controlled buses, the size of Jacobian matrix is

With fault clearing time, the transient stability of a power system

Is the power line voltage available in our homes a dc or an ac voltage?

The command line interpreter that enables the users to interact with operating system is called the A) Window B) Shell C) Process D) Kernel

If non-linear loads are connected to the power system, then (A) displacement power factor is same as the total power factor (B) displacement power factor is not equal to the total power factor (C) displacement power factor is due to harmonic currents (D) total power factor is due to fundamental component of current

What is the choice of size and number of generator units in interconnected power system?

Pure inductive circuit takes power from the A.C. line when?

State the functions of fuel system and exhaust system of a diesel power station.

Explain fuel system and air intake system in diesel electric power plant.

Generally in a power system network, the load is represented as a :  (A) Constant power in both load flow study and in stability study  (B) Constant power in load flow study and constant impedance in stability study  (C) Constant power in stability study and constant impedance in load flow study  (D) Constant impedance in both load flow study and in stability study

The benefit of power factor correction in a power system is (A) lower power consumption (B) increased demand charge (C) reduced load carrying capabilities in existing lines (D) reduced voltage profile

What is line voltage and phase voltage? Draw balanced three phase star connected system. Show all the voltages and currents.

For a 500 Hz frequency excitation, a 50 km long power line will be modeled as

What is a high tension power line?

In voltage source converter based HVDC transmission system the active power is controlled by changing (A) phase angle of the converter ac input voltage (B) supply frequency of the converter ac input voltage (C) magnitude of the converter ac input voltage (D) DC voltage at the inverter terminals

What is the use of lightning arrester?

What are the components of a power system?

Explain starting system in diesel electric power plant.

What is sag in power system?

What is meant by feeder in power system?

What is microgrid in power system?

what is lightning arrester?

steady-state stability of a power system is improved by

The stability of the power system is not affected by  (1) generator reactance (2) line reactance (3) line losses (4) output torque

Power factor of the system is kept high?

State function of starter and ELCB. (Earth Leakage Circuit Breaker)

Explain power system analysis.

What are interconnected power system?

What is power system planning?

Write the relation between phase and line current, phase and line voltage for Star connection.

What is the difference between line and phase current?