menu search
person
thumb_up_alt 0 like thumb_down_alt 0 dislike
67 views

1 Answer

Murray loop test can be used for location of both the ground fault and the short-circuit fault.

thumb_up_alt 0 like thumb_down_alt 0 dislike
← Prev Question Next Question →

Related questions

Description :

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

Answer :

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

thumb_up_alt 0 like thumb_down_alt 0 dislike
301 views 1 answer
Description :

The loop equation for a series RLC circuit gives

Answer :

The loop equation for a series RLC circuit gives

thumb_up_alt 0 like thumb_down_alt 0 dislike
68 views 1 answer
Description :

Define- (i) Node (ii) Loop for a DC circuit

Answer :

Ans: i) Node: A point or junction at which two or more elements of network are connected is called as node. ii) Loop: A closed path for flow of current in an electrical circuit is called loop.

thumb_up_alt 0 like thumb_down_alt 0 dislike
57 views 1 answer
Description :

thumb_up_alt 0 like thumb_down_alt 0 dislike
39 views 0 answers
Description :

(i) Bilateral Network (ii) Node (iii) Loop (iv) Branch

Answer :

(i) Bilateral Network: If the characteristic of network (response or behavior) is independent of the direction of current through its elements in it, then the network is called as a bilateral network e. ... A part of an electric network which lies between two junctions or nodes is known as branch. 

thumb_up_alt 0 like thumb_down_alt 0 dislike
39 views 1 answer
Description :

Write the application of the following antennas: 1) Rectangular antenna 2) Dish antenna 3) Horn antenna 4) Loop antenna 5) Yagi-Uda antenna. 

Answer :

Applications:  1.Rectangular antenna  i)Used in Mobile and satellite communication ii)Used in Global Positioning System iii) Used for Radio Frequency Identification (RFID) iv) Radar  Dish ... antenna. 2. Yagi-Uda antenna is used in conditional Access System (CAS) at the decryptor.

thumb_up_alt 0 like thumb_down_alt 0 dislike
88 views 1 answer
Description :

What are the disadvantages of Open loop control system?

Answer :

Open loop control system are less reliable. In open loop control system Optimization is not possible. Open loop control system are less accurate.

thumb_up_alt 0 like thumb_down_alt 0 dislike
65 views 1 answer
Description :

Explain how sinusoidal AC voltage is generated by using simple one loop generator.

Answer :

An electric current produced by means of electrical machine is known as generator which converts mechanical energy into electrical energy. When conductor cuts the magnetic flux, emf induced in it. (Faraday' ... upon position of armature. The nature of emf is alternating as shown by the waveform. 

thumb_up_alt 0 like thumb_down_alt 0 dislike
1.2k views 1 answer
Description :

Explain the hysteresis loop of a magnetic material with neat diagram.

Answer :

Hysteresis loop of magnetic material:  The circuit arrangement for plotting the hysteresis loop is shown in figure given below. The electromagnetic part consists of a coil wound on the iron ring ... one magnetic reversal is called hysteresis loop. Meaning of hysteresis is to lag behind.

thumb_up_alt 0 like thumb_down_alt 0 dislike
385 views 1 answer
Description :

 The number of loop equations required to completely analysing a network comprising of 8 independent branches and 6 nodes including the reference node shall be A) 3 B) 2 C) 4 D) 5 

Answer :

 The number of loop equations required to completely analysing a network comprising of 8 independent branches and 6 nodes including the reference node shall be 3 

thumb_up_alt 0 like thumb_down_alt 0 dislike
132 views 1 answer
Description :

Which waves are demodulated by Costas loop? A) VSB B) SSB C) MSK D) DSBSC 

Answer :

Which waves are demodulated by Costas loop? A) VSB B) SSB C) MSK D) DSBSC 

thumb_up_alt 0 like thumb_down_alt 0 dislike
59 views 1 answer
Description :

What will happen to the gain margin if the gain of the open loop system is doubled? A) Doubled B) Becomes half C) Is not affected D) Becomes one-fourth 

Answer :

What will happen to the gain margin if the gain of the open loop system is doubled? A) Doubled B) Becomes half C) Is not affected D) Becomes one-fourth 

thumb_up_alt 0 like thumb_down_alt 0 dislike
175 views 1 answer
Description :

If the gain of the open loop system is doubled, the gain margin  (1) Is not affected (2) Gets doubled (3) Becomes half (4) Becomes one -forth

Answer :

If the gain of the open loop system is doubled, the gain margin Becomes half

thumb_up_alt 0 like thumb_down_alt 0 dislike
641 views 1 answer
Description :

What is the difference between a mesh and a loop?

thumb_up_alt 0 like thumb_down_alt 0 dislike
356 views 0 answers
Description :

What are some examples of a closed loop system?

Answer :

C.L s/m. EX. Air conditioner (AC), rocket launcher, radar system, voltage stabilizer etc.

thumb_up_alt 0 like thumb_down_alt 0 dislike
90 views 1 answer
Description :

What is an example of an open loop system?

Answer :

Open loop system. Ex. Electric heater, washing machine, fan, electric switch, etc

thumb_up_alt 0 like thumb_down_alt 0 dislike
89 views 1 answer
Description :

What are the advantages of open loop control system?

Answer :

Open loop control system are simple to design. Open loop control system are generally stable.

thumb_up_alt 0 like thumb_down_alt 0 dislike
98 views 1 answer
Description :

what is open loop and close loop control system?

Answer :

A) In open loop system the input is independent         of output but output is depends on input. A-1. no feedback path in open loop s/m    -2. less accuracy than close loop s/m. Ex. Washing ...    -3. high accuracy. Ex. Air conditioner ( AC ), rocket launcher, radar          system, etc

thumb_up_alt 0 like thumb_down_alt 0 dislike
111 views 2 answers
Description :

Polarity Test of Transformer

Answer :

.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

thumb_up_alt 1 like thumb_down_alt 0 dislike
280 views 2 answers
Description :

Explain the procedure to perform Short Circuit test on single phase transformer with circuit diagram.

thumb_up_alt 0 like thumb_down_alt 0 dislike
78 views 0 answers
Description :

With the help of neat diagram, describe the procedure to carry out phasing out test on a 3 phase transformer. Also state the purpose of conducting this test on 3 phase transformer.

Answer :

i) This test is carried out on 3-ph transformer to identify primary & secondary winding belonging to the same phase. ii) As shown in fig above all primary & secondary phases ... of this test is to check the respective phases of primary & secondary windings in 3-ph transformer

thumb_up_alt 0 like thumb_down_alt 0 dislike
171 views 1 answer
Description :

Explain the open delta (delta-delta) test on transformer.

thumb_up_alt 0 like thumb_down_alt 0 dislike
65 views 0 answers
Description :

DC motor brake test numerical

Answer :

.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

thumb_up_alt 0 like thumb_down_alt 0 dislike
51 views 2 answers
Description :

Brake test on DC series motor

Answer :

.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

thumb_up_alt 0 like thumb_down_alt 0 dislike
184 views 2 answers
Description :

Explain the need and steps to conduct the reduced voltage running up test on the three phase induction motor.

thumb_up_alt 0 like thumb_down_alt 0 dislike
64 views 0 answers
Description :

Why phasing out and polarity test is carried out on three phase transformer?

Answer :

The phasing out test is carried out to identify the windings (primary and secondary) of corresponding phase of the three phase transformer. The polarity test is carried out to identify the ... identical polarity of the primary and secondary windings of each phase of the three phase transformer.

thumb_up_alt 0 like thumb_down_alt 0 dislike
190 views 1 answer
Description :

What is test bench? Write its applications

Answer :

Test Bench: A test bench is used to verify the functionality of the design. We need to stimulate our designs in order to test their functionality. Stimulus in a real system is from an ... the entity under test and to collect output responses. 6. To compare output responses with expected values.

thumb_up_alt 0 like thumb_down_alt 0 dislike
58 views 1 answer
Description :

Slip test is performed to determine :  (A) Slip in an induction motor  (B) Xd and Xq in a salient pole alternator  (C) Synchronous impedance in an alternator  (D) Positive and negative sequence impedances of an alternator

Answer :

Slip test is performed to determine :  Xd and Xq in a salient pole alternator 

thumb_up_alt 0 like thumb_down_alt 0 dislike
87 views 1 answer
Description :

If a 5-bus test system contains 6 transmission lines and one transformer, how many non-zero elements are there in the system Y-bus ? (A) 25 (B) 12 (C) 11 (D) 19

Answer :

If a 5-bus test system contains 6 transmission lines and one transformer, 19 non-zero elements are there in the system Y-bus.

thumb_up_alt 0 like thumb_down_alt 0 dislike
2.9k views 1 answer
Description :

Answer :

Hopkinson's test on D.C. machines is conducted at full-load.

thumb_up_alt 0 like thumb_down_alt 0 dislike
84 views 1 answer
Description :

Answer :

The duration of sudden short-circuit test on a synchronous motor is usually about one second.

thumb_up_alt 0 like thumb_down_alt 0 dislike
132 views 1 answer
Description :

During open circuit test of a transformer?

Answer :

During open circuit test of a transformer primary is supplied rated voltage.

thumb_up_alt 0 like thumb_down_alt 0 dislike
83 views 1 answer
Description :

Answer :

Short circuit test on transformers is conducted to determine copper losses.

thumb_up_alt 0 like thumb_down_alt 0 dislike
130 views 1 answer
Description :

An open-circuit test on a transformer is conducted primarily to measure?

Answer :

The open-circuit test in a transformer is used to measure

thumb_up_alt 0 like thumb_down_alt 0 dislike
363 views 2 answers
Description :

A no-load test is performed on a transformer to determine?

Answer :

A no-load test is performed on a transformer to determine magnetizing current and loss.

thumb_up_alt 0 like thumb_down_alt 0 dislike
95 views 1 answer
Description :

Sumpner's test is conducted on transformer to determine?

Answer :

Sumpner's test is conducted on transformer to determine temprature.

thumb_up_alt 0 like thumb_down_alt 0 dislike
102 views 1 answer
Description :

How do you test a capacitor with a multimeter?

thumb_up_alt 0 like thumb_down_alt 0 dislike
120 views 0 answers
Description :

How do we test a diode?

thumb_up_alt 0 like thumb_down_alt 0 dislike
60 views 0 answers
Description :

How do you test a triac?

thumb_up_alt 0 like thumb_down_alt 0 dislike
40 views 0 answers
Description :

How do you test an SCR?

thumb_up_alt 0 like thumb_down_alt 0 dislike
52 views 0 answers
Description :

Why high voltage test is done?

thumb_up_alt 0 like thumb_down_alt 0 dislike
54 views 0 answers
Description :

What is an insulation resistance test?

thumb_up_alt 0 like thumb_down_alt 0 dislike
62 views 0 answers
Description :

What is a high voltage test?

thumb_up_alt 0 like thumb_down_alt 0 dislike
56 views 0 answers
Description :

Answer :

Low voltage side is short circuited.

thumb_up_alt 1 like thumb_down_alt 0 dislike
148 views 1 answer
Description :

Answer :

Primary is high voltage side and Secondary is low Voltage side.

thumb_up_alt 1 like thumb_down_alt 0 dislike
107 views 1 answer
Description :

Answer :

High Voltage side is open circuited.

thumb_up_alt 1 like thumb_down_alt 0 dislike
97 views 1 answer
Description :

Answer :

Primary side is low voltage side and secondary side is high voltage side.

thumb_up_alt 1 like thumb_down_alt 0 dislike
101 views 1 answer
Description :

Answer :

In short circuit test of transformer the low voltage side is short circuited . On high voltage side the voltmeter is connected in parallel and ammeter in series and also a wattmeter is ... circuit test is done for determining impedance and losses. In this test iron losses is neglected.

thumb_up_alt 0 like thumb_down_alt 0 dislike
142 views 1 answer
Description :

Varley loop tests are preferred over Murray loop tests because  (1) Valley loop test can locate open circuit fault (2) Varley loop test gives higher accuracy (3) in Varley loop test provision is made for the measurement of total loop resistance instead of obtaining it from the relation R = pl/a (4) Valley loop test can locate the earth fault

thumb_up_alt 0 like thumb_down_alt 0 dislike
1.3k views 0 answers
Description :

Which one of the following statements is incorrect ? (A) Pareto analysis is a statistical method used for analyzing causes, and is one of the primary tools for quality management. (B) Reliability of a software specifies the probability of failure-free operation of that software for a given time duration. (C) The reliability ... be specified as the Mean Time To Failure (MTTF). (D) In white-box testing, the test cases are decided from the specifications or the requirements.

Answer :

(D) In white-box testing, the test cases are decided from the specifications or the requirements.

thumb_up_alt 0 like thumb_down_alt 0 dislike
16 views 1 answer
...