The single phasing relays are used for the protection of?

Question

Please Log in or Register for more.

The single phasing relays are used for the protection of?

296 views

asked Mar 20, 2018 by anonymous

1 Answer

Please log in or register to answer this question.

Related Questions

The inverse definite mean time relays are used for over current and earth fault protection of transformer against?

Last Answer : The inverse definite mean time relays are used for over current and earth fault protection of transformer against internal short-circuits.

2.6k views 1 answer

asked Mar 20, 2018 by anonymous

Discrimination between main and backup protection is provided by the use of relays which are?

Last Answer : Discrimination between main and back up protection is provided by the use of relays which are slow.

396 views 1 answer

asked Mar 20, 2018 by anonymous

IDMT relays are used to protect the transformer against :

IDMT relays are used to protect the transformer against : (A) Internal short -circuits (B) Open circuits (C) External short circuits (D) Oil leakage
Last Answer : IDMT relays are used to protect the transformer against : External short circuits

3.1k views 1 answer

asked Apr 30, 2018 by anonymous

Which relays are used for phase faults on long line?

Last Answer : Impedance relays are used for phase faults on long line.

82 views 1 answer

asked Mar 20, 2018 by anonymous

A relay used for protection of motors against overload is :

A relay used for protection of motors against overload is : (A) Impedance relay (B) Electromagnetic attraction type (C) Thermal relay (D) Buchholz's relay
Last Answer : D

547 views 2 answers

asked May 8, 2018 by anonymous

A negative sequence relay is used for protection of

A negative sequence relay is used for protection of (1) Generator (3) Motor (2) Transformer (4) Long Transmission lines
Last Answer : A negative sequence relay is used for protection of Generator

627 views 1 answer

asked May 1, 2018 by anonymous

Surge absorbers are used for protection against

Surge absorbers are used for protection against
Last Answer : Surge absorbers are used for protection against low voltage high frequency oscillations

3.0k views 1 answer

asked Apr 26, 2018 by anonymous

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.

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.
Last 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

292 views 1 answer

asked Apr 27, 2020 by anonymous

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

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

418 views 1 answer

asked Jul 27, 2019 by anonymous

To protect most of the electrical equipment handling low power, the types of relays used are?

Last Answer : To protect most of the electrical equipment handling low power, the types of relays used are thermocouple, electronic and bimetallic.

106 views 1 answer

asked Mar 20, 2018 by anonymous

Protective relays are devices that detect abnormal conditions in electrical circuits by measuring?

Last Answer : Protective relays are devices that detect abnormal conditions in electrical circuits by measuring constantly the electrical quantities which differ during normal and abnormal conditions.

132 views 1 answer

asked Mar 20, 2018 by anonymous

Directional relays are based on flow of?

Last Answer : Directional relays are based on flow of power.

165 views 1 answer

asked Mar 19, 2018 by anonymous

D.C. shunt relays are made of?

D.C. shunt relays are made of?
Last Answer : D.C. shunt relays are made of many turns of thin wire.

2.7k views 1 answer

asked Mar 19, 2018 by anonymous

Thermal overload relays are used to protect the motor against over current due to?

Last Answer : Thermal overload relays are used to protect the motor against overcurrent due to heavy loads.

252 views 1 answer

asked Mar 19, 2018 by anonymous

Overload relays are of?

Last Answer : Overload relays are of induction, solid state, thermal, electromagnetic type.

72 views 1 answer

asked Mar 19, 2018 by anonymous

Relays can be designed to respond to changes in?

Last Answer : Relays can be designed to respond to changes in resistance, reactance or impedance voltage and current, light intensity, temperature.

145 views 1 answer

asked Mar 19, 2018 by anonymous

Describe different RT level computational and sequential components used to design single function processors.

Describe different RT level computational and sequential components used to design single function processors.
Last Answer : RT-level combinational components:- To reduce the complexity in digital logic, combinational components are used, which are more powerful than logic gates. Such combinational ... during a clock edge. An asynchronous inputs value effects the circuit independent of the clock.

243 views 1 answer

asked Mar 21, 2018 by anonymous

What are the five types of single phase motors used in the industry?

79 views 0 answers

asked Mar 15, 2018 by anonymous

How many types of relays are there?

How many types of types of relays are there?

50 views 0 answers

asked Aug 17, 2019 by anonymous

Consider the following statements. Which of these statements are correct ? (1) Reactance relays are preferred

Consider the following statements. Which of these statements are correct ? (1) Reactance relays are preferred for ground fault relaying (2) Impedance relays are most suitable for:protecting long transmission lines (3) Mho relays are best ... (1) and (3) (C) (2) and (4) (D) (1), (2) and (4)
Last Answer : Consider the following statements. Which of these statements are correct ? (1) Reactance relays are preferred for ground fault relaying (2) Impedance relays are most suitable for:protecting long transmission lines (3) Mho relays are ... (1) and (3) (C) (2) and (4) (D) (1), (2) and (4)

129 views 1 answer

asked Apr 29, 2018 by anonymous

Blind spot is a point in the zones of protection where

Blind spot is a point in the zones of protection where
Last Answer : Blind spot is a point in the zones of protection where No protection is available.

665 views 1 answer

asked May 8, 2018 by anonymous

For protection of rotating machines against lightning surges _______ is used.

For protection of rotating machines against lightning surges _______ is used. (1) lightning arrester (2) capacitor (3) combination of lightning arrester and capacitor (4) lightning conductor and arrester
Last Answer : For protection of rotating machines against lightning surges combination of lightning arrester and capacitor is used.

4.5k views 1 answer

asked Apr 30, 2018 by anonymous

Reactance relay is normally preferred for protection against

Reactance relay is normally preferred for protection against
Last Answer : Reactance relay is normally preferred for protection against earth faults

120 views 1 answer

asked Apr 29, 2018 by anonymous

Protection by fuses is generally not used beyond?

Last Answer : Protection by fuses is generally not used beyond 100 A .

173 views 1 answer

asked Mar 20, 2018 by anonymous

A fuse in a motor circuit provides protection against?

Last Answer : A fuse in a motor circuit provides protection against short-circuit and overload.

157 views 1 answer

asked Mar 20, 2018 by anonymous

Overfluxing protection is recommended for?

Last Answer : Overfluxing protection is recommended for generator transformer of the power plant.

79 views 1 answer

asked Mar 20, 2018 by anonymous

Over voltage protection is recommended for?

Last Answer : Over voltage protection is recommended for hydro-electric generators, steam turbine generators, gas turbine generators.

98 views 1 answer

asked Mar 20, 2018 by anonymous

For the protection of power station buildings against direct strokes the requirements are?

Last Answer : For the protection of power station buildings against direct strokes the requirements are interception, conduction and dissipation.

94 views 1 answer

asked Mar 20, 2018 by anonymous

The delay fuses are used for the protection of?

Last Answer : The delay fuses are used for the protection of motors.

101 views 1 answer

asked Mar 20, 2018 by anonymous

A thermal protection switch can protect against?

Last Answer : A thermal protection switch can protect against overload.

233 views 1 answer

asked Mar 19, 2018 by anonymous

Primary and Backup Protection

Primary and Backup Protection
Last Answer : Primary and Backup Protection B,D,G,I are the primary protection. A,C,H,J are the backup protection. About 90% of faults are clear by Primary Protection. So ... ordinated backup (primary is at various station and backup is at control room with computer)

401 views 1 answer

asked Aug 9, 2017 by anonymous

The single phasing relays are used for the protection of (a) single phase motors only (b) two phase motors only (c) two single phase motors running in parallel (d) three phase motors

The single phasing relays are used for the protection of (a) single phase motors only (b) two phase motors only (c) two single phase motors running in parallel (d) three phase motors
Last Answer : (d) three phase motors

8 views 1 answer

asked Aug 25, 2021 by itszee

In a single bus-bar system there will be complete shut down when?

Last Answer : In a single bus-bar system there will be complete shut down when fault occurs on the bus itself.

112 views 1 answer

asked Mar 20, 2018 by anonymous

Can anyone recommend a good, durable protection case for iPod Touch 4th gen?

Can anyone recommend a good, durable protection case for iPod Touch 4th gen?
Last Answer : I would highly recommend an Otterbox case. I have the Defender series case for my 3gen iPod touch. It's not perfect, but it provides better protection than any other case I've seen, and I like the ... ago, but that was only because I dropped my iPod and the case cracked. The ipod was fine though.

5 views 1 answer

asked Feb 27 by anonymous

What is the purpose of Overload Protection in a motor circuit?

What is the purpose of Overload Protection in a motor circuit?
Last Answer : Ans. The Overload Protection is used in a motor circuit to protect it from sustained over currents.

54 views 1 answer

asked Jun 20, 2021 by itszee

Protection scheme for internal faults in a three phase star delta connected transformer

2 views 0 answers

asked Jun 7, 2021 by kawere junior

Limitations of differential protection scheme of the altanetor

11 views 0 answers

asked Jun 7, 2021 by kawere junior

Car Leather Protection

Car Leather Protection
Last Answer : Your girlfriend and your leather car interior have many things in common. Both are tough but incredibly sensitive. Both are cold and are very hard to please. Both need a lot of attention and ... differences too. Unlike your girlfriend, leather is not something you want to get down and dirty with.

10 views 1 answer

asked Jun 1, 2021 by itszee

3 phase 11KV to 4 10000 KVA alternator has neutral Earth through a resistance of 1 ohm the machine has current balance protection while operate upon of balance Karan exceed 18% of full load determine percentage of winding and protected against ground fault

25 views 0 answers

asked May 24, 2021 by aniketwaghmare

Explain in detail over-voltage protection.

Explain in detail over-voltage protection.
Last Answer : Over-voltage protection: Over-voltage protection to the thyristor is provided using: i) R-C Snubber circuit ii) Non-linear resistor Thyrector A) Snubber Circuit: It is basically a ... returns to its high resistance state. Thyrector is normally placed across the supply terminals.

2.6k views 1 answer

asked Jul 25, 2019 by anonymous

Light triggering is mainly used in

Light triggering is mainly used in
Last Answer : Light triggering is mainly used in High voltage direct current transmission

441 views 1 answer

asked May 8, 2018 by anonymous

Earthing switch is used for?

Earthing switch is used for? (A) Measuring of safety voltage (B) Protection of equipment from ground faults (C) Discharging residual energies (D) All of the above
Last Answer : Earthing switch is used for? (A) Measuring of safety voltage (B) Protection of equipment from ground faults (C) Discharging residual energies (D) All of the above

113 views 1 answer

asked May 8, 2018 by anonymous

Auto reclosing is used in case of

Auto reclosing is used in case of
Last Answer : Auto reclosing is used in case of air blast C.B.

95 views 1 answer

asked May 3, 2018 by anonymous

The material used in liquid fuses is

The material used in liquid fuses is (1) SF6 (3) carbon tetra chloride (2) distilled water (4) transformer oil
Last Answer : The material used in liquid fuses is carbon tetra chloride

392 views 1 answer

asked Apr 30, 2018 by anonymous

Series reactors are used to

Series reactors are used to
Last Answer : Series reactors are used to bring down the fault level within the capacity of the switchgear

77 views 1 answer

asked Apr 26, 2018 by anonymous

ln a minimum oil circuit breaker the oil is used

ln a minimum oil circuit breaker the oil is used
Last Answer : ln a minimum oil circuit breaker the oil is used to act as circuit breaking medium only

83 views 1 answer

asked Apr 26, 2018 by anonymous

Regulating-transformers are used in power systems for control of

Regulating-transformers are used in power systems for control of
Last Answer : Regulating-transformers are used in power systems for control of power flow

149 views 1 answer

asked Apr 26, 2018 by anonymous

A switchgear is device used for?

Last Answer : A switchgear is device used for switching, controlling and protecting the electrical circuit and equipment.

258 views 1 answer

asked Mar 20, 2018 by anonymous

The material used for fuse must have?

Last Answer : The material used for fuse must have low melting point and high specific resistance.

162 views 1 answer

asked Mar 20, 2018 by anonymous

Series capacitors are used to?

Last Answer : Series capacitors are used to compensate for line inductive reactance.

77 views 1 answer

asked Mar 20, 2018 by anonymous

anonymous · Answer 1 · 2018-03-20T02:36:17+0000

The single phasing relays are used for the protection of three phase motors.

The single phasing relays are used for the protection of?

Please log in or register to add a comment.

1 Answer

Answer :

Please log in or register to add a comment.

Please log in or register to answer this question.

Related Questions