# Equal area criterion gives the information regarding

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Equal area criterion gives the information regarding

(1) stability region (2) absolute stability (3) relative stability (4) swing curves

Equal area criterion gives the information regarding absolute stability

## Related questions

The 'Equal area criterion' for the determination of transient stability of a synchronous machine connected to an infinite bus  (1) ignores line as well as synchronous machine resistance and shunt capacitances.  (2) assumes accelerating power acting on the rotor as constant.  (3) ignores the effect of voltage ... inherent damping present in the machine.  (4) takes into consideration the possibility of machine losing synchronism after it has survived during the first swing.

What is Barkhausens Criterion?

What happens to the resistance of a wire when its length as well as the cross-sectional area are doubled? A) It doubles B) It becomes 4 times C) It becomes 2π times D) It remains the same

lt the length, number of turns and area of a coil are  doubled, the inductance of the coil

If the area of hysteresis loop of a material is large, the hysteresis loss in this material will be?

For a transient stability analysis, as long as equal area criterion is satisfied, the maximum angle to which rotor angle can oscillate is:  (A) 0˚ to 20˚ (B) 45˚ to 50˚ (C) Greater than 90˚ (D) 65˚ to 85˚

Two aluminium conductors have equal length. The cross-sectional area of one conductor is four times that of the other. If the conductor having smaller cross-sectional area has a resistance of 100 ohms the resistance of other conductor will be

Two copper conductors have equal length. The cross-sectional area of one conductor is four times that of the other. If the conductor having smaller cross-sectional area has a resistance of 40 ohms the resistance of other conductor will be?

The main criterion for selection of the size of a radial distribution system is

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Consider the following statements regarding corona :  1. It causes radio interference.  2. It attenuates lightning surges.  3. It causes power loss.  4. It is more prevalent in the middle conductor of a transmission line employing flat conductor configuration.  Which of the above statements are correct ?  (a) 1, 2 and 3 only (b) 1, 2 and 4 only (c) 1, 2, 3 and 4 (d) 3 and 4 only

Consider the following statements regarding capability curves of a synchronous generator :  1. The MVA loading should not exceed the generator rating.  2. The field current should not be allowed to exceed a specified value determined by field heating.  3. The MW loading should not exceed the rating of the prime mover.  4. The load angle must be more than 90°.  Which of the above statements are correct ?

Consider the following statements regarding three-phase transformers in Open -Delta (V -V) connections :  1. Being a temporary remedy when one transformer forms of Delta -Delta system is &imaged, and removed from service.  2. The Volt Ampere (VA) supplied by each transformer is half of the total VA, and the system is not overloaded.  3. An important precaution ...   Which of the above statements are correct ?  (a) 1 and 2 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3

Consider the following statements regarding Peer -to -Peer computing environment :  1. In this system, clients and servers are not distinguished from one another.  2. All nodes distributed throughout the system (within) are considered Peers and each may act as either a client or a server.  3. Peer -to -Peer system assuredly ... client -server system.  4. Peer -to -Peer system is just a replica of the file -server system.  Which of the above statements are correct ?

Which of the following statements are correct regarding dot product of vectors ?  1. Dot product is less than or equal to the product of magnitudes of two vectors.  2. When two vectors are perpendicular to each other, then their dot product is non -zero.  3. Dot product of two vectors is positive or negative depending whether the angle between the vectors is less than ... the codes given below :  (a) 1, 2 and 3 only (b) 1, 3 and 4 only (c) 1, 2 and 4 only (d) 2, 3 and 4 only

Describe any four selection criterion of transducers.

____ is known as allowing the authorized access to information.  a) Decryption b) Encryption c) Hacking d) None of the above

____ is known as restricting the access to information.  a) Decryption b) Encryption c) Hacking d) None of the above

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Information that a computer produces and delivers back to the user is known as ____.  a) Input b) Output c) Both (a) and (b) d) None of the above

The building block for all information that flows through a computer ____.  a) Bit b) Byte c) Both (a) and (b) d) None of the above

For high speed reading and storing of information in a computer, the core shall be of (a) Ferrite (b) Piezoelectric (c) Pyroelectric (d) Ferromagnetic above 768°C

The information rate to be transmitted is 900 bits /sec, FEC is 3/4 , the symbol rate for QPSK modulation scheme is : a. 225 symbols /sec b. 450 symbols /sec c. 600 symbols /sec d. 675 symbols /sec

The tools that search information on the Internet are  A) Directory B) Meta -search engine C) Search engine D) All of the above

A tool for locating information on the Internet by matching search terms with indexed pages is called  (1) URL (2) Search Engine (3) Web Browser (4) Data base

The process related to process control, file management, device management, information about system and communication that is requested by any higher level language can be performed by __________. (1) Editors (2) Compilers (3) System Call (4) Caching

In air-core cable the surge voltage travels approximately at the speed of light and a cable of 100m length gives a delay of a. 0.666μsec b. 0.333μsec c. 1.555μsec d. 1μsec

Shunt generator gives full voltage on load and the voltage drop as the load on the generator a. Decreases b. Increases c. Remains the same d. None of above

The widely used series-parallel system of speed control of d.c. series motors in traction work gives a speed range of about (a) 1 : 2 (b) 1 : 3 (c) 1 : 4 (d) 1 : 6

The reading of wattmeter in no load test of induction motor gives : (A) Friction and windage loss (B) Copper losses on no load in the stator (C) Core losses (D) Sum of all losses

The error detecting element in a control system gives: - a) the sum of the reference signal and feedback signal b) the sum of the reference signal and error signal c) the difference of the reference signal and feedback signal d) the difference of the reference signal and output signal

The thermocouple pair that gives the maximum sensitivity around 273 °k is   (a) Platinum – Constantan (b) Nichrome – Constantan (c) Nickel – Constantan (d) Copper – Nickel

The generator which gives dc supply to the rotor is called:  (1) Converter (2) Exciter (3) Inverter (4) Rectifier

Find the area of rhombus whose diagonals are 6 cm and 9 cm.

Find the area of the triangle whose vertices are 4,3 1,4 and 2,3 .

for Delta-Star connection of 3-phase transformer: i) Draw the connection diagram ii) List any two advantages of this connection iii) State its area of application.

Draw and explain the working principle of turbine type flow meter. Mention its Application area.

The data recording area between the blank gaps on magnetic tape is called a/an:  (a) record (b) block (c) field (d) database

The primary turns of a 444 V/222 V, 50 Hz single-phase transformer with a core cross-sectional area of 100 cm2, and a maximum flux density of 1.0 T is (A) 100 (B) 200 (C) 222 (D) 400

The amount of solar radiation received on a unit area exposed perpendicular to sunlight is termed as : (A) Solar insulation (B) Solar constant (C) Solar radiance (D) Solar insolation

Which one is a vector quantity out of the followings?  A. Energy B. Volume C. Area D. Force

If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density: A. increases B. decreases C. remains the same D. doubles