Why shunt capacitor is used?

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asked Mar 15, 2018 by anonymous

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Why capacitor bank is used?

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asked Mar 20, 2018 by anonymous

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asked Mar 20, 2018 by anonymous

The capacitors used in single-phase capacitor motors have no?

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asked Sep 2, 2019 by anonymous

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

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asked Aug 18, 2019 by anonymous

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asked Jul 5, 2019 by anonymous

Why does the speed of a DC shunt motor decrease as the load increases?

Last answer: Because if the load is increasing then the torque must also be increase. If not then the speed of motor will decrease.

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asked Sep 19, 2017 by anonymous

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asked Mar 15, 2018 by anonymous

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What is the basic use of capacitor?

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What is the basic function of a capacitor?

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asked Aug 25, 2019 by anonymous

If field current is decreased in shunt dc motor, the speed of the motor

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Last answer: increases

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asked May 3, 2018 by anonymous

A 200 V dc shunt motor is running at 1000 rpm and drawing a current of 10 A. Its armature winding resistance

A 200 V dc shunt motor is running at 1000 rpm and drawing a current of 10 A. Its armature winding resistance is 2 Ohm. It. is braked by plugging. The resistance to be connected in series with armature to restrict armature current to 10 A, is

Last answer: A 200 V dc shunt motor is running at 1000 rpm and drawing a current of 10 A. Its armature winding resistance is 2 Ohm. It. is braked by plugging. The resistance to be connected in series with armature to restrict armature current to 10 A, is 36 Ohm

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169 views 1 answer

asked Apr 28, 2018 by anonymous

A shunt fault is characterized by

A shunt fault is characterized by (A) Increase in current, frequency and pf (B) Increase in current, reduction in frequency and pf (C) Increase in current and frequency, reduction in pf (D) Decrease in current and frequency

Last answer: B

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asked Mar 21, 2018 by anonymous

The function of shunt in an ammeter is to?

Last answer: The function of shunt in an ammeter is to by pass the current.

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asked Mar 21, 2018 by anonymous

A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave?

Last answer: A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave will be of 5 Hz.

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asked Mar 21, 2018 by anonymous

The e.m.f. induced in the armature of a shunt generator is 600 V. The armature resistance is 0.1 ohm...

The e.m.f. induced in the armature of a shunt generator is 600 V. The armature resistance is 0.1 ohm. If the armature current is 200 A, the terminal voltage will be?

Last answer: The e.m.f. induced in the armature of a shunt generator is 600 V. The armature resistance is 0.1 ohm. If the armature current is 200 A, the terminal voltage will be 580 V.

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286 views 1 answer

asked Mar 21, 2018 by anonymous

In a shunt generator the voltage build up is generally restricted by?

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asked Mar 20, 2018 by anonymous

If a D.C. shunt motor is working at full load and if shunt field circuit suddenly opens?

Last answer: If a D.C. shunt motor is working at full load and if shunt field circuit suddenly opens this will make armature to take heavy current, possibly burning it.

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asked Mar 20, 2018 by anonymous

The purpose of retardation test on D.C. shunt machines is to find out?

Last answer: The purpose of retardation test on D.C. shunt machines is to find out stray losses.

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58 views 1 answer

asked Mar 20, 2018 by anonymous

If the speed of a D.C. shunt motor is increased, the back e.m.f. of the motor will?

Last answer: If the speed of a D.C. shunt motor is increased, the back e.m.f. of the motor will increase.

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111 views 1 answer

asked Mar 20, 2018 by anonymous

For a D.C. shunt motor if the excitation is changed?

Last answer: For a D.C. shunt motor if the excitation is changed torque will change but power will remain constant.

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120 views 1 answer

asked Mar 20, 2018 by anonymous

The armature torque of the D.C. shunt motor is proportional to?

Last answer: The armature torque of the D.C. shunt motor is proportional to armature current.

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87 views 1 answer

asked Mar 20, 2018 by anonymous

As the load is increased the speed of D.C. shunt motor will?

Last answer: As the load is increased the speed of D.C. shunt motor will reduce slightly.

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105 views 1 answer

asked Mar 20, 2018 by anonymous

The mechanical power developed by a shunt motor will be maximum when the ratio of back e.m.f. to applied voltage is?

Last answer: The mechanical power developed by a shunt motor will be maximum when the ratio of back e.m.f. to applied voltage is 0.5.

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144 views 1 answer

asked Mar 20, 2018 by anonymous

In case of D.C. shunt motors the speed is dependent on back e.m.f. only because?

Last answer: In case of D.C. shunt motors the speed is dependent on back e.m.f. only because flux is practically constant in D:C. shunt motors.

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145 views 1 answer

asked Mar 20, 2018 by anonymous

In a D.C. shunt motor, speed is?

Last answer: In a D.C. shunt motor, speed is independent of armature current.

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61 views 1 answer

asked Mar 20, 2018 by anonymous

In D.C. shunt motors as load is reduced?

Last answer: In D.C. shunt motors as load is reduced the speed will remain almost constant.

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52 views 1 answer

asked Mar 20, 2018 by anonymous

If the field of a D.C. shunt motor gets opened while motor is running?

Last answer: If the field of a D.C. shunt motor gets opened while motor is running the motor will attain dangerously high speed.

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92 views 1 answer

asked Mar 20, 2018 by anonymous

Shunt capacitance is neglected while considering?

Last answer: Shunt capacitance is neglected while considering short transmission line.

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61 views 1 answer

asked Apr 23, 2020 by anonymous

DC shunt motor

Last 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%; }

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108 views 2 answers

asked Jul 27, 2019 by anonymous

State any four applications of DC shunt motor.

Last answer: Applications of DC shunt motor: 1) Lathe machines 2) drilling machines 3) milling machines 4) Printing machinery 5) Paper industry 6) centrifugal and reciprocating pumps 7) blowers 8)fans

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asked Jul 23, 2019 by anonymous

Use of shunt reactor in substation

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asked May 8, 2018 by anonymous

In which of the following transmission lines, the value of the Shunt admittance should be

In which of the following transmission lines, the value of the Shunt admittance should be approximated to zero ? (A) A 66 kV 35 km long line (B) A 132 kV 200 km long line (C) A 220 kV 300 km long line (D) A 400 kV 500 km long line

Last answer: In which of the following transmission lines, the value of the Shunt admittance should be approximated to zero ? (A) A 66 kV 35 km long line (B) A 132 kV 200 km long line (C) A 220 kV 300 km long line (D) A 400 kV 500 km long line

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445 views 1 answer

asked May 8, 2018 by anonymous

A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s.

A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s. The armature resistance is 0.5 W and the field winding resistance is 80 W. The net Voltage across armature resistance at the time of plugging will be

Last answer: A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s. The armature resistance is 0.5 W and the field winding resistance is 80 W. The net Voltage across armature resistance at the time of plugging will be 474 V

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219 views 1 answer

asked Mar 21, 2018 by anonymous

A cumulatively compounded long shunt generator when operating as a motor would be?

Last answer: A cumulatively compounded long shunt generator when operating as a motor would be differentially compounded long shunt.

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78 views 1 answer

anonymous · Answer 1 · 2019-08-25T01:46:41+0000

answered Aug 25, 2019 by anonymous

To improve voltage at receiving end and power factor

Why shunt capacitor is used?

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