# Three point starter can be used for?

Three point starter can be used for both shunt and compound motor.

## Related questions

Last Answer : A three point starter is considered suitable for shunt as well as compound motors.

Description : what is the difference between four point starter and three point starter?

Last Answer : The shunt connection in four point starter is provided separately form the line where as in three point starter it is connected with line which is the drawback in three point starter.

Last Answer : A direct online starter is used for starting motors up to 5 H.P.

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

Description : How to Replace a Starter

Last Answer : How to Replace a Starter The starter is where it all begins. Your car is just sitting there and ready to go, but it won't. A charge is supposed to be sent to the starter and then ... the battery and tighten the connection. Start the engine to make sure that all connections have been made properly.

Description : Explain the necessity of starter for D.C. motor. State various types of D.C. motor starter.

Last Answer : Necessity of Starter for D.C. Motor: Armature current is given by equation Ia = (V−Eb)/Ra i) If the motor is at standstill or rest, back emf Eb is zero (as Eb= ZNP/(60A), at start speed N ... . Types of D.C. motor starters: i) Two point starter ii)Three point starter iii) Four point starter

Description : Draw the wiring diagram of fluorescent tube. Explain the working of choke and starter.

Last Answer : Fluorescent lamp:- Operation:- When switch is ON current flows through the choke-filament no1- starter-filament no. 2- to neutral, At that time choke induces high voltage which is applied to ... at the time of starting. ii) Starter: To make and break the circuit to start the tube.

Description : State any four advantages of soft starter.

Last Answer : Advantages of soft starter: 1. Very low line voltage drops on motor operation 2. Reduced energy losses in the lines 3. System efficiency increases 4. Very smooth starting & operation 5. As ... may lead to lower MD billing. 13. Less mechanical maintenance. 14. Saving in operating costs.

Description : State function of starter and ELCB. (Earth Leakage Circuit Breaker)

Last Answer : i) Function of Starter:- 1. To prevent the high starting current OR to minimize the starting current. 2. To give supply failure protection 3. To give over load and short circuit protection ... an installation and cut off the circuit from power supply and avoid electrical shock to the person.

Last Answer : In a manual shunt motor starter over load relay is connected in series and no volt relay in parallel with the load.

Description : The slip of 400 V, three phase, 4 -pole induction motor when rotating at 1440 rpm is

Last Answer : The slip of 400 V, three phase, 4 -pole induction motor when rotating at 1440 rpm is 4 percent

Description : 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

Description : What is mean by plugging in three phase induction motor?

Last Answer : Plugging in three-phase induction motor means interchanging of any two phases of a stator for quick stopping.

Description : Single point Cutting tool signature

Last Answer : The shape of a tool is specified in a special sequence and this special sequence is called tool signature. The tool signature is given below (i) Back rake angle (ii) Side rake angle (iii) ... rake, end relief, side relief, end cutting edge, side cutting edge angle and 0.8 mm nose radius.

Description : Illustrate with neat wiring diagram a single lamp control by two point method.

Last Answer : Single lamp control by two point method:  This system is commonly used for stair case wiring. It consists of two way switches (the switch operates always in one of the two possible positions) the ... the person will change the position of switch S2, so that the lamp will be switched OFF'.

Description : A charge of 0.1 C moves past a given point every 0.01 s. How much is the current?

Last Answer : The current is 10.0A.  1ampere = 1 Coulomb per 1 second.  0.1Coulombs ÷ 0.01seconds = 10.0amperes.

Description : The operating point of a protective current transformer is near the

Last Answer : The operating point of a protective current transformer is near the Ankle point

Description : 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.

Description : If the % reactance upto the fault point is 20%, then the short circuit current will be

Last Answer : If the % reactance upto the fault point is 20%, then the short circuit current will be 5 times the full load current

Last Answer : In a load curve the highest point represents peak demand.

Description : THREE PHASE INDUCTION MOTORS MCQ

Last Answer : 101. Insertion of resistance in the stator of an induction motor (a) increases the load torque (b) decreases the starting torque (c) increases the starting torque (d) none of the above Ans: b

Description : 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.

Description : 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.

Description : Why is a three phase denoted by R, Y, B ?

Last Answer : phase 1 ,R =Red colour cable terminal, phase 2 Y=Yellow colour terminal cable,Phase 3 B=Blue colour cable terminal, N =Neutral. For identification.

Description : State any four advantages of three phase induction motor.

Last Answer : Advantages of three phase induction motor https://youtu.be/27OIOCKN05U

Description : Define balanced and unbalanced load in three phase circuit.

Last Answer : Balanced Load: When all the imedances of 3 phases are equal in magnitude and of same nature then load is said to be balanced.  Unbalanced Load: When all the imedances of 3 phases are not equal in magnitude and of different nature then load is said to be unbalanced.

Description : State any four applications of three phase circuits.

Last Answer : The application of three phase circuits are 1. Three phase circuit is used for power transmission over long distances. 2. Three phase circuit can produce rotating magnetic field 3. Three phase ... three phase Motors and Transformers. 4. Three phase circuit is used for power converters circuits.

Description : State advantages of three phase over single phase.

Last Answer : Advantages of 3-phase system over 1-phase system: -  1. More output: For the same size, output of poly-phase machines is always higher than single phase machines.  2. Smaller size: For ... are self- starting: The three phase ac motors are self starting, while single phase induction motor are not.

Description : Consider a circuit with three parallel branches connected across a DC supply. What is the ratio of the branch currents I1 : I2 : I3 if the branch resistances are in the ratio of 2 : 3 : 4 respectively? A) 2 : 3 : 4 B) 6 : 4 : 3 C) 4 : 3 : 2 D) None of these

Last Answer : Consider a circuit with three parallel branches connected across a DC supply. What is the ratio of the branch currents I1 : I2 : I3 if the branch resistances are in the ratio of 2 : 3 : 4 respectively? A) 2 : 3 : 4 B) 6 : 4 : 3 C) 4 : 3 : 2 D) None of these

Description : When three resistors with unequal values are connected in parallel, _______ A) The current across the resistors is the same  B) The voltage drop across the resistors is the same C) The voltage drops across the resistors is proportional to the resistance of each resistor D) None of these

Last Answer : When three resistors with unequal values are connected in parallel, The voltage drop across the resistors is the same

Description : When a V-V three phase transformer system is converted into a Δ-Δ system, increase in capacity of the system is (A) 86.6% (B) 50% (C) 57.7% (D) 73.2%

Last Answer : When a V-V three phase transformer system is converted into a Δ-Δ system, increase in capacity of the system is 73.2%

Description : In a three-phase supply floating neutral is undesirable because it way give rise to?

Last Answer : In a three-phase supply floating neutral is undesirable because it way give rise to unequal line voltages across the load.

Description : Three phase synchronous motor will have how many sliprings?

Last Answer : Three phase synchronous motor will have two sliprings.

Description : Explain three phase half wave controller or three phase unidirectional controller.

Last Answer : Three phase half wave controller or unidirectional controller:

Description : Explain Three Phase Bidirectional Delta Connected Controller.

Last Answer : Three Phase Bidirectional Delta Connected Controller:

Description : Explain three phase bridge inverter.

Last Answer : Three phase bridge inverter: Three phase bridge inverter converts DC voltage input to three-phase variable frequency variable voltage output. DC voltage source can be a DC source or output of the rectifier. ... in proper sequence. The switch may be thyristor or IGBT etc.

Description : Explain three phase full wave controller.

Last Answer : Three phase full wave controller: Three phase full wave controller is also called as the three-phase bidirectional controller. Let the load is star connected so at each phase there are antiparallel connected SCRs. ... conduct at the same time and the third phase will be open.

Description : What is a three phase connection?

Last Answer : RYB, 440 volt/phase

Description : three phase to single phase cycloconverter

Last Answer : three phase to single phase cycloconverter

Description : how can we reverse the direction of rotation of three phase induction motor ?

Last Answer : The direction of rotation of three phase induction motor can be reversed by plugging i.e by changing any two out of three phases of the supply to the stator of the Induction motor terminal.

Description : A 4—point starter is used to start and control the speed of a  A) DC shunt motor with armature resistance control B) DC shunt motor with field weakening control C) DC series motor D) Thyristor controlled d.c. motor

Last Answer : A 4—point starter is used to start and control the speed of a DC shunt motor with armature resistance control

Description : Can you guys explain the advantages of frequency converter against the star delta or soft starter?

Last Answer : ¬Soft starters  A soft starter is, as you would expect, a device which ensures a soft starting of a motor. A softstarter has different characteristics to the other starting ... at rated current from zero to full speed. Frequency converters are becoming cheaper all the time.

Description : Difference Between A Four Point Starter And Three Point Starter?

Last Answer : The shunt connection in four point stater is provided separately form the line where as in three point stater it is connected with line which is the drawback in three point stater.

Description : Difference between a four point starter and three point starters?

Last Answer : The shunt connection in four point starter is provided separately from the line where as in three point starter it is connected with line which is the drawback in three point starter

Description : To check the three line fuses of a three-phase system consisting of a three-phase motor, you must _____________. A. place the starter in the 'stop' position B. make sure the motor is operating at full ... leads across the 'hot' ends of the fuses D. place the leads across the bottom ends of the fuses

Description : Which of the following actions must be carried out before a voltage tester can be used to test the three line fuses to a three-phase motor? A. The fuses must be removed from the circuit. B. The ... disconnected and tagged. D. Nothing need be done as long as the motor is running under a light load.

Description : Has anyone on the planet ever started a fire with a Harbor Freight Magnesium Fire Starter Kit?

Last Answer : Nope In high school, the chemistry teacher, on a cold winter's day (15* F the night before) made a hole in the soccer field and poured a mixture of a kilo of rust and a half kilo of aluminum ... Zippo lighter, It thawed the ground for ten inches around the hole, and the flame was over 2 foot high.

Description : Opinions on Ovation guitars as a starter instrument?

Last Answer : answer:You can't have too much instrument for a beginner! A bad instrument will hold you back and put you off because you will be fighting with it. The consensus on Ovation guitars over here is that recently they ... should be great! (Would love to see a pic!) And yes, sounds like a great price :-)

Description : Good no-styling starter blogger template?

Last Answer : answer:I know you're on Blogger but if all you're trying to do is learn from some existing templates on a well-known blogging platform, then perhaps you should try Tumblr instead. They offer ... started with selecting the template you want. All of the HTML/CSS/JS is completely editable by you.

Description : For testing websites, Can I test for Windows 7 on Windows 7 Starter and can it get IE9?

Last Answer : answer:Yes, IE9 installs on all versions of Windows 7, so you'd be fine there. There may be a better way to do this than buying a dedicated computer though. Have you looked into ... with windows 7 as an option? Something like VirtualBox might be a simpler (and less expensive) solution.