The value of starting capacitor of a fractional horse power motor will be?

A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will?
Last Answer : A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will not start at all.

231 views 1 answer

asked Mar 20, 2018 by anonymous

A centrifugal switch is used to disconnect starting winding when motor has?

Last Answer : A centrifugal switch is used to disconnect starting winding when motor has picked up about 50 to 70 per cent of rated speed.

875 views 1 answer

asked Mar 20, 2018 by anonymous

The rotor developed by a single-phase motor at starting is?

Last Answer : The rotor developed by a single-phase motor at starting is zero.

89 views 1 answer

asked Mar 20, 2018 by anonymous

In a capacitor start single-phase motor, when capacitor is replaced by a resistance?

Last Answer : In a capacitor start single-phase motor, when capacitor is replaced by a resistance motor will continue to run in same direction.

223 views 1 answer

asked Mar 20, 2018 by anonymous

If the capacitor of a single-phase motor is short-circuited?

Last Answer : If the capacitor of a single-phase motor is short-circuited the motor will not start.

104 views 1 answer

asked Mar 20, 2018 by anonymous

What is BHP, How do you calculate the BHP of pump BHP-> Brake horse power?

What is BHP, How do you calculate the BHP of pump BHP-> Brake horse power?
Last Answer : Ans The following formula is used for calculating the BHP capacity of the pump. Q H/4500 = in horse power i.e., P = Discharge in Liters/minute H= Head in Meters

12 views 1 answer

asked Jun 20, 2021 by itszee

List different starting methods of three phase synchronous motor. Explain any one of them.

List different starting methods of three phase synchronous motor. Explain any one of them.
Last Answer : Different Starting Methods of Three Phase Synchronous Motor: As synchronous motor is not self starting, different methods of starting are as follows: 1) By using an Induction (Pony) motor 2) ... . The rotor gets pulled into synchronism and starts running at constant speed as a synchronous motor.

157 views 1 answer

asked May 7, 2020 by anonymous

In a double squirrel cage induction motor, good starting torque is produced as

In a double squirrel cage induction motor, good starting torque is produced as (A) Large current flows through the outer high resistance winding. (B) Large current flows through the inner high ... the outer high resistance winding. (D) Large current flows through the inner low resistance winding.
Last Answer : In a double squirrel cage induction motor, good starting torque is produced as Large current flows through the outer high resistance winding.

136 views 1 answer

asked May 8, 2018 by anonymous

For the same H.P. rating and full load speed, following motor has poor starting torque?

Last Answer : For the same H.P. rating and full load speed, following motor has poor starting torque differentially compounded.

164 views 1 answer

asked Mar 20, 2018 by anonymous

The starting resistance of a D.C. motor is generally?

Last Answer : The starting resistance of a D.C. motor is generally low.

169 views 1 answer

asked Mar 20, 2018 by anonymous

For starting a D.C. motor a starter is required because?

Last Answer : For starting a D.C. motor a starter is required because it limits the starting current to a safe value.

123 views 1 answer

asked Mar 20, 2018 by anonymous

The starting winding of a single-phase motor is placed in?

Last Answer : The starting winding of a single-phase motor is placed in stator.

115 views 1 answer

asked Mar 20, 2018 by anonymous

If starting winding of a single-phase induction motor is left in the circuit, it will?

Last Answer : If starting winding of a single-phase induction motor is left in the circuit, it will draw excessive current and overheat.

234 views 1 answer

asked Mar 20, 2018 by anonymous

Starting winding of a single phase motor of a refrigerator is disconnected from the circuit by means of a?

Last Answer : Starting winding of a single phase motor of a refrigerator is disconnected from the circuit by means of a magnetic relay.

215 views 1 answer

asked Mar 20, 2018 by anonymous

A synchronous motor can be made self starting by providing?

A synchronous motor can be made self starting by providing?
Last Answer : A synchronous motor can be made self-starting by providing damper bar.

131 views 1 answer

asked Mar 18, 2018 by anonymous

How is a three phase cage induction motor self starting?

How is a three phase cage induction motor self starting?
Last Answer : Any type of induction motor is self starting. Because the reason for torqe production require two flux displaced by some angle theta.If theta is constant with time then torqe will be constant;if ... torqe also pulsating. In induction motor this angle theta is not pulsating.so it is self starting

158 views 1 answer

asked Mar 17, 2018 by anonymous

Is induction motor is self starting?

Is induction motor is self starting?
Last Answer : Single phase induction motor is not self starting. Three phase induction motor is self starting.

111 views 1 answer

asked Mar 17, 2018 by anonymous

Why a dc series motor has a high starting torque?

Why a dc series motor has a high starting torque?
Last Answer : motor

86 views 1 answer

asked Mar 15, 2018 by anonymous

Why starter is required for starting an induction motor?

114 views 0 answers

asked Mar 15, 2018 by anonymous

Why does induction motor have high starting current?

Why does induction motor have high starting current?
Last Answer : In induction motor , the flux produce is quadrature to the applied voltage. Since when we are going to start motor , there is no flux present inside . So in order to lets say compensate it ... times of current to further increase flux. So that is reason for high starting current in induction motor

143 views 2 answers

asked Mar 15, 2018 by anonymous

which single phase induction motor has highest starting torque?

Last Answer : Capacitor start motor has high torque in starting

133 views 1 answer

asked Sep 13, 2017 by anonymous

If the centrifugal switch of a two-value capacitor motor using two capacitors fails to open then?

Last Answer : If the centrifugal switch of a two-value capacitor motor using two capacitors fails to open then Electrolytic capacitor will, in all probability, suffer break down.

169 views 1 answer

asked Mar 20, 2018 by anonymous

Two-value capacitor motor finds increased application as compressor motor in small home air-conditioners because?

Last Answer : Two-value capacitor motor finds increased application as compressor motor in small home air-conditioners because it has low starting as well as running currents at relatively high power factor.

74 views 1 answer

asked Mar 20, 2018 by anonymous

Why is a capacitor used in a single phase motor and not in three phase motor ?

Why is a capacitor used in a single phase motor and not in three phase motor ?
Last Answer : In 1-phase induction motor capacitor work is generate the auxiliary winding current than excite the main winding to rotor starts rotate. After rotor start rotating about 75% of their speed than auxiliary ... emf to start the motor.so,in 3-phase induction motor is self start induction motor.

260 views 6 answers

asked Sep 2, 2019 by anonymous

Explain the working of a single phase capacitor start induction motor.

Explain the working of a single phase capacitor start induction motor.
Last Answer : Single phase capacitor start induction motor https://youtu.be/31lvvzU5Puc

394 views 2 answers

asked Jul 30, 2019 by anonymous

To reverse the direction of rotation of a capacitor start motor while it is running we should?

Last Answer : To reverse the direction of rotation of a capacitor start motor while it is running we should disconnect motor from the supply till it stops then reconnect it to supply with reversed connection of main or auxiliary winding.

131 views 1 answer

asked Mar 20, 2018 by anonymous

In a ceiling fan employing capacitor run motor?

Last Answer : In a ceiling fan employing capacitor run motor secondary winding surrounds the primary winding.

101 views 1 answer

asked Mar 20, 2018 by anonymous

Can we use the synchronous motor as the synchronous capacitor?

Can we use the synchronous motor as the synchronous capacitor?
Last Answer : Yes, we can use the synchronous motor as the synchronous capacitor when the synchrnous motor is overexcited.

91 views 1 answer

asked Mar 18, 2018 by anonymous

Explain starting system in diesel electric power plant.

Explain starting system in diesel electric power plant.
Last Answer : Starting system in Diesel Electric Power Plant: It includes Storage battery, compressed air tanks, self-starter etc. The purpose of engine starting system is to rotate the engine initially while ... as Ammeters, Voltmeters, Wattmeters, Thermometers, Pressure gauges, Visible and audible alarm etc.

125 views 1 answer

asked Sep 8, 2018 by anonymous

In D.C. machines fractional pitch winding is used?

Last Answer : In D.C. machines fractional pitch winding is used to reduce the sparking.

355 views 1 answer

asked Mar 20, 2018 by anonymous

Most of the fractional horsepower motors have either?

Last Answer : Most of the fractional horsepower motors have either plain or sleeve bearings.

92 views 1 answer

asked Mar 20, 2018 by anonymous

The operating speed of a synchronous motor can be changed to new fixed value by?

Last Answer : The operating speed of a synchronous motor can be changed to new fixed value by changing frequency.

121 views 1 answer

asked Mar 20, 2018 by anonymous

Power factor of an inductive circuit is usually improved by connecting capacitor to it in?

Power factor of an inductive circuit is usually improved by connecting capacitor to it in?
Last Answer : Power factor of an inductive circuit is usually improved by connecting capacitor to it in parallel.

278 views 1 answer

asked Mar 25, 2018 by anonymous

How does a capacitor improve power factor?

How does a capacitor improve power factor?
Last Answer : Every circuit are usually more inductive than capacitive.it means that the current lags by voltage at small angle.hence we have to compensate this situation so we use Capacitor then this lag is compensate ... angle becomes low and the value of cos(phase angle) is increase and hence power also max.

163 views 1 answer

asked Dec 16, 2017 by anonymous

When a D.C. series motor is connected to A.C. supply, the power factor will be low because of?

Last Answer : When a D.C. series motor is connected to A.C. supply, the power factor will be low because of high inductance of field and armature circuits.

119 views 1 answer

asked Mar 20, 2018 by anonymous

The power factor of a single-phase induction motor is usually?

Last Answer : The power factor of a single-phase induction motor is usually lagging.

189 views 1 answer

asked Mar 20, 2018 by anonymous

For high value of diversity factor, a power station of given installed capacity will be in a position to supply?

Last Answer : For high value of diversity factor, a power station of given installed capacity will be in a position to supply more number of consumers.

169 views 1 answer

asked Mar 20, 2018 by anonymous

What is the maximum value of power factor?

What is the maximum value of power factor?
Last Answer : 1 is the maximum value of power factor.

118 views 1 answer

asked Mar 19, 2018 by anonymous

what is the value of Beta in power BJT?

What is the value of Beta in power BJT?
Last Answer : The beta value in power BJT is 5 to 10.

105 views 1 answer

asked Sep 20, 2017 by anonymous

In a capacitor start and run motors the function of the running capacitor in series with the auxiliary winding is to?

Last Answer : In a capacitor start and run motors the function of the running capacitor in series with the auxiliary winding is to improve power factor.

710 views 1 answer

asked Mar 20, 2018 by anonymous

In capacitor start single-phase motors?

Last Answer : In capacitor start single-phase motors current in the starting winding leads the voltage.

101 views 1 answer

asked Mar 20, 2018 by anonymous

How to Tack up a Horse

How to Tack up a Horse
Last Answer : How to Tack up a Horse Action heroes have the uncanny ability to jump on any horse without arranging the necessary equipment, such as a saddle, a bridle and a girth. In real life, such a stunt ... head from fairly hard hits. However, if you want more protection, riding safely is your best option.

10 views 1 answer

asked May 22, 2021 by itszee

How to Groom a Horse

How to Groom a Horse
Last Answer : How to Groom a Horse Grooming a horse is not just a way to keep your horse clean, healthy and hygienic: It's also a way to bond with your horse and check for any irregularities or diseases. Here ... as not to get too nervous. This is particularly important if the horse is not familiar with you yet.

6 views 1 answer

asked May 12, 2021 by anonymous

How to Build a Horse Stall

How to Build a Horse Stall
Last Answer : How to Build a Horse Stall A horse for leisurely horseback riding is a great idea, but remember that you have to care for this animal well, so he will serve you for a long time. One of ... -constructed stall. It'll help assure you that he will be around for years for your horseback riding pleasure.

2 views 1 answer

asked May 12, 2021 by anonymous

How to Gallop on a Horse ?

How to Gallop on a Horse ?
Last Answer : How to Gallop on a Horse Your horse is saddled, you've got your riding boots on, and you're ready to brave the open fields with your trusted horse. Before you hop onto his back, do you really ... riding. With these easy tips, galloping on a horse will be easier, safer and more manageable for you.

3 views 1 answer

asked May 6, 2021 by anonymous

How to Harness a Horse ?

How to Harness a Horse ?
Last Answer : How to Harness a Horse Harnessing a horse properly is important when you want your horse to draw a carriage or a horse cart. Read on to learn more about how to harness a horse. Tools Lead rope ... you enjoy reading this article, you'll surely be delighted to learn how to train a head-shy horse.

2 views 1 answer

asked May 6, 2021 by anonymous

How to Feed a Horse ?

How to Feed a Horse ?
Last Answer : How to Feed a Horse Feeding a horse with the right combination of what the horse wants and what the horse needs is ideal. For a healthy, happy and productive horse, its diet is very important. Here ... nutrition your horse needs, so keep your vet updated on changes on diet and weight in your horse.

4 views 1 answer

asked May 6, 2021 by anonymous

How to Halter a Horse ?

How to Halter a Horse ?
Last Answer : How to Halter a Horse A halter is a typically leather or rope headstall that is attached to the reins of a horse. Halters can also be used for tacking up a horse or grooming a horse. Here's how you can ... Don't wrap the lead rope around your hand and be sure to stand next to the horse at all times.

2 views 1 answer

asked May 6, 2021 by anonymous

anonymous · Answer 1 · 2018-03-20T18:57:44+0000

The value of starting capacitor of a fractional horse power motor will be 300 uF .

The value of starting capacitor of a fractional horse power motor will be?

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