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3 phase system has more power than a single phase system

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15y ago

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How do you turn a 3 phase motor in to a generator?

We can convert a 3 phase ac motor into generator by changing phase sequence of the ac input cable of that motor


Why you prefer three phase AC and single phase DC for transmission?

3-phase ac is commonly used for transmission over several hundred kilometres within a synchronous grid system. DC is used for longer distances or for connection between two systems which are not in synchronism.


Classification of ac motor?

ac:1) 1 phase 2) poly phase 3)universal


Can you tap off a 3 phase 277volt ac light fixture to power a single phase 120 volt ac recptacle?

NO! The voltages available in the 3-phase system are 480 (if you wire phase to phase) and 277 (if you wire phase to neutral) Don't try it!


What are advantages of three phase ac and a single phase ac?

In a typical 3 phase system you have multiple voltages and configurations that can be used in either single phase or 3 phase, depending on how the circuit is designed. A single phase system is just single phase. You can have multiple voltages but it is always single phase.For example, in a typical 277/480v 3 phase system you can power 277v single phase lighting or equipment, 480v single phase lighting or equipment (which uses 2 legs of the 3 phase system but operates like any other single phase circuit), or 480v 3 phase motors.When comparing motors, a 3 phase motor will be substantially smaller than a single phase motor of the same horsepower. You can also reverse a 3 phase motor by switching any 2 leads. A single phase AC motor runs in one direction regardless of how the leads are connected.AnswerFor a given load, a three-phase transmission system requires less volume of copper in terms of conductor size, compared to single phase, so it is more economical to use three-phase.


What is need of static inverter in electric locomotives?

it converts single phase ac to 3 phase ac we use it insteed of arno


Is a 3 phase motor a Synchronous motor?

A synchronous motor can be a type of 3-Phase AC motor, or not.A synchronous motor is defined by the period of the rotor being synchronized with the frequency of the stator windings' current. The stator windings might be 3-Phase or not (2-Phase would work).Also synchronous motors are not the only type of 3-Phase AC motors. An induction motor could also be 3-Phase AC and has a few advantages and disadvantages over a synchronous motor.


What is the 11kv phase to earth voltage?

6350.8 volts AC rms. The phase to earth voltage is ( square root(3) ) x lower than the phase-phase voltage on a 3 phase system.


What is the RMS volts formula for 3 phase system?

In three-phase systems, we always consider individualline or phase currents, or individual line or phase voltages. In other words, we treat currents and voltages no differently from single-phase currents or voltages (i.e. we don't 'combine' them because they are three-phase quantities). So these quantities are expressed in r.m.s. values.


Can you connect a 460volt 3 phase motor to a 480 volt 3 phase system?

The systems are one in the same. Yes.


Three phase voltage in india?

It is 230V single phase and 440V in 3 phase system at 50 Hz.AnswerIf the single-phase voltage is 230 V, then the three-phase voltage must be 400 V, not 440 V. The line voltage is 1.732 times the phase voltage.


When connecting a external generator 3 phase to an existing 3 phase electrical network how do you know that the 2 systems are in phase?

use a rotor phaser or simply connect a 3 phase motor and check dirrection