What is difference between Star and Delta Connection?

What is difference between Star and Delta Connection?
by

1 Answer

Answer :

Star is 

      1. Open ckt

      2. At center point present  neutral  

Delta is 

   1.   Closed ckt

2.      Neutral not present in this case 


by

Related questions

Compare star and Delta Connection.

Description : Compare star and Delta Connection.

Last Answer : Compare Star and Delta connected system:  Star connected system Delta connected system   In STAR connection, the starting or finishing ends (Similar ends) of three coils are connected together to form the ... VPH Line Current is √3 times of Phase Current. i.e. IL = √3 IPH

Delta to Star Conversion Example

Description : Delta to Star Conversion Example

Last Answer : Delta to Star Conversion Example

Wye (Star) to Delta Conversion

Description : Wye (Star) to Delta Conversion

Last Answer : Wye (Star) to Delta Conversion

Star to delta conversion examples

Description : Star to delta conversion examples

Last Answer : Star to delta conversion example 1

If an unsymmetrical line to ground fault occurs at the secondary terminals of a delta/star, ungrounded

Description : If an unsymmetrical line to ground fault occurs at the secondary terminals of a delta/star, ungrounded transformer, then  (A) zero sequence currents are present on both sides of the transformer  (B) ... side  (D) zero sequence currents are present on the primary side but not on the secondary side

Last Answer : If an unsymmetrical line to ground fault occurs at the secondary terminals of a delta/star, ungrounded transformer, then zero sequence currents are absent on both sides of the transformer 

Write the relation between phase and line current, phase and line voltage for Star connection.

Description : Write the relation between phase and line current, phase and line voltage for Star connection.

Last Answer : Line voltage is equal to root three times of phase voltage and line and phase currents are equal in star connection

What is a three phase connection?

Description : What is a three phase connection?

Last Answer : RYB, 440 volt/phase

State the difference between energy conservation and energy audit.

Description : State the difference between energy conservation and energy audit. 

Last Answer : energy conservation Energy audit It is reducing the growth of energy consumption by avoiding unnecessary usage of energy It is an inspection, survey & analysis of energy flows ... Various measuring instruments, with proper sensing elements are required for the energy audit. 

Describe the difference between direct and alternating current.

Description : Describe the difference between direct and alternating current.

Last Answer : Direct current is the flow of electricity or charge in one direction..  Alternative current is the flow of charge that doesn't flow in one direction. 

Describe the difference between an open circuit and a short circuit.

Description : Describe the difference between an open circuit and a short circuit.

Last Answer : Open circuit means the wire is cut meaning power will not flow and close circuit means wire is not cut and hence power will flow.Short circuit is the same as close circuit

Write difference between absolute & secondary instrument.

Description : Write difference between absolute & secondary instrument.

Last Answer : Absolute Instrument Secondary Instrument 1. These give magnitude of quantity in terms physical constants of instruments 1. These give reading directly of the quantity at the time of ... Raleigh current balance. 6. Examples - ammeter, voltmeter, amperehour meter, wattmeter etc.

What is the difference between relay and contactor?

Description : What is the difference between relay and contactor?

Last Answer : Relay have smaller ratings. Contactor is a high rating relay.

In a single phase power factor meter the phase difference between the currents in the two pressure coils is?

Last Answer : In a single phase power factor meter the phase difference between the currents in the two pressure coils is exactly 90°.

A differential relay measures the vector difference between?

Last Answer : A differential relay measures the vector difference between two or more similar electrical quantities.

What is the difference between BJT and FET?

Description : What is the difference between BJT and FET?

Last Answer : BJT  is  a  current  opperated   transistor  while  FET   is  a  field   opperated  transistor.

What is the difference between an AC and DC generator?

Description : What is the difference between an AC and DC generator?

Last Answer : The generator which generates DC voltage is called DC generator and generator which generates AC voltage is called AC generator (or) Alternator. In DC generator armature is rotated and field winding ... generator. A DC generator can generate low voltages but an AC generator can generate upto 11kv.

What is the difference between synchronous and asynchronous motors?

Description : What is the difference between synchronous and asynchronous motors?

Last Answer : The motor which rotates at constant speed is called synchronous motor. And that constant speed is called as synchronous speed.  And the motor which does not rotates at constant speed are called asynchronous motor. Asynchronous motor is also called as Induction motor.

What is the difference between eddy current and hysteresis loss?

Description : What is the difference between eddy current and hysteresis loss?

Last Answer : Loss occurred by magnetising and demagnetising process is called histerisis loss and the current flowed due to the magnetic field produced by the electric field applied is called eddy current losses

What is the difference between an anode and a cathode?

Description : What is the difference between an anode and a cathode?

Last Answer : The anode is positively charged electrode and the cathode is negatively charged electrode.

What is the difference between an insulator and a dielectric?

Description : What is the difference between an insulator and a dielectric?

Last Answer : Dielectric is the another name for insulator.

What is the difference between a microcontroller and a microprocessor?

Description : What is the difference between a microcontroller and a microprocessor?

Last Answer : Compare microprocessor and microcontroller Microprocessor Microcontroller 1)Inbuilt RAM and ROM 1)Do not have inbuilt RAM or ROM 2)Inbuilt timer 2)Doesn't have inbuilt timer ... same memory 6)Many Multifunction pins on the IC  6)less multifunction Pins on IC.

What is the difference between AC and DC drive?

Description : What is the difference between AC and DC drive?

Last Answer : AC means alternating current It's Frequency is 50hz Dc means direct current ItsI Frequency is 0Hz

What is the difference between line and phase current?

Description : What is the difference between line and phase current?

Last Answer : The currents flows through phase lines is called line voltage and currents flows from phase to neutral line is called phase current

What is the difference between line and phase voltage?

Description : What is the difference between line and phase voltage?

Last Answer : Line voltage  is  voltage  between two  phases R &Y  (415 v)  while  phase  voltage  is  the  voltage  between  one  phase and  a neutral  B &  N   (240 v).

What is difference between KW and KVA?

Description : What is difference between KW and KVA?

Last Answer : kW is kilowatt and kVA is kilovolt ampere. kW is unit of real power and kVA is unit of Apparent power.

What is the difference between a counter and a timer?

Description : What is the difference between a counter and a timer?

Last Answer : Counter counts only when the trigger is applied and timer counts continuously with some equal delay.

What is the difference between renewable and nonrenewable energy sources?

Description : What is the difference between renewable and nonrenewable energy sources?

Last Answer : Renewable energy sources are non-perishable, and Non-renewable energy sources are perishable sources. Non-Renewable energy sources are like  coal, oil,nuclear fuel etc. Renewable energy sources are :- wind, solar, tidal, Geo thermal etc.

What is the difference between a switch and a relay?

Description : What is the difference between a switch and a relay?

Last Answer : Switch is simply a mechanical contact mechanism and relay is a electromagnetic switch . Switch can be direct mechanically turn on and off but relay can be operated by energising coil .

What is the difference between a coil and an inductor?

Description : What is the difference between a coil and an inductor?

Last Answer : Inductor is covering with insulating material is called coil.so they differentiate between coil and inductor.

What is the difference between forward and reverse bias?

Description : What is the difference between forward and reverse bias?

Last Answer : Forward bias is a PN junction bias which allows current to flow through the junction. Forward bias decreases the resistance of the depletion layer. Reverse bias is a PN junction bias that allows only ... Positive polarity on the n-type material and negative polarity to the p-type material.

Distinguish between AC and DC.

Description : Distinguish between AC and DC.

Last Answer : Particulars Direct Current Alternating Current Definition It is the current whose magnitude and direction do not change with respect to time. It is the current whose ... system, electroplating, Battery charging, Traction. AC machines, Domestic and industrial supply.

Give the circuit analysis of current source inverter with resistive load.

Description : Give the circuit analysis of current source inverter with resistive load. What are the main difference between voltage source inverter and current source inverter?

Last Answer : Current source inverter (CSI): In current source inverter, the output current is independent of load. The input current of current source inverter is constant. Current source converter converts DC input current to ... are connected in parallel. In CSI diodes are connected in series.

what is the different between AC and DC current ?

Description : what is the difference between AC and DC current ?

Last Answer : AC is generated using Alternator. DC is generated using DC generator. AC changes its direction periodically. DC do not change its direction periodically. AC have non zero frequency. DC have zero ... Power factor of AC is between 0 and 1. But power factor of DC is always 1.

Does Delta have something that I can plug my computer in to for power?

Description : Does Delta have something that I can plug my computer in to for power?

Last Answer : Older planes have to be retrofitted to have a power source by every seat. It is pretty standard on newer planes. Without knowing the the type of plane it would be impossible to know. And even with that it might be hard to say for certain. Your best bet is to call and ask.

Delta to Wye Conversion

Description : Delta to Wye Conversion

Last Answer : Delta to Wye Conversion

Wye and delta conversion formula

Description : Wye and delta conversion formula

Last Answer : Wye and delta conversion formula

Wye Delta Transformation problems

Description : Wye Delta Transformation

Last Answer : Wye Delta Transformation 1 : https://youtu.be/mPKeczDWZCo Wye Delta Transformation 2 : https://youtu.be/k80VbHI-wwg Wye Delta Transformation 3 : https://youtu.be/6cnwj15uw5M Wye Delta Transformation ... 8 : https://youtu.be/knRb5UW1404 Wye Delta Transformation 9 : https://youtu.be/JBwHKBJ08WM

The line current in a balanced delta system is 30 A. The load current is

Description : The line current in a balanced delta system is 30 A. The load current is (A) 30√3 A (B) 30/√3 A (C) 10 A (D) 30/√2 A

Last Answer : The line current in a balanced delta system is 30 A. The load current is 30/√3 A

Explain Three Phase Bidirectional Delta Connected Controller.

Description : Explain Three Phase Bidirectional Delta Connected Controller.

Last Answer : Three Phase Bidirectional Delta Connected Controller:

UPS- How to give Connection?

Description : UPS- How to give Connection?

Last Answer : Ans. Means Uninterrupted power supply. To give UPS connection, first normal supply is kept off. Then, loads of essential and non essential are to be segregated. Essential loads are to be brought under single point of control. Then, UPS can be connected.

Explain with the neat circuit diagram only the scott connection scheme for conversion of three phase supply to two phase supply. Name one application of the same.

Description : Explain with the neat circuit diagram only the scott connection scheme for conversion of three phase supply to two phase supply. Name one application of the same.

Last Answer : Three-phase to Two-phase Transformation (Scott Connection of Transformers): Working: i) Scott connection can be used for three-phase to two-phase conversion using two single-phase transformers ... a 3-phase system with a two-phase system with the flow of power in either direction. 

Explain MCB and ELCB with connection diagram supplying single phase load.

Description : Explain MCB and ELCB with connection diagram supplying single phase load. 

Last Answer : OR OR Explanation: * MCB provides short circuit protection. * MCB provides overload protection * ELCB provides earth fault protection. * MCB is in series with ... occurs, the ELCB cuts off the power within the time of 0.1 sec. automatically to protect the personnel. 

State functions of ; i) Cable box ii) Guard wire iii) Shackle insulator iv) Stay wire used in service connection

Description : State functions of ; i) Cable box ii) Guard wire iii) Shackle insulator iv) Stay wire used in service connection

Last Answer : i) Function of Cable box: To hold and inspect incoming and outgoing terminals  ii) Function of Guard wire : A grounded conductor placed beneath an overhead transmission line in order to ground ... in service connection: To give mechanical Support to pole, line and prevent leakage current if any

Why underground service connections are service connections are costly than overhead service connection

Description : Why underground service connections are service connections are costly than overhead service connection

Last Answer : Reason: Underground service connection is given by underground cable. This cable is costly than bare conductor. Sometimes cable trench is required for cable laying, which requires additional cost. So underground service connections are costly than overhead service connection.

Define service connection and state types connection and state types of overhead service connection

Description : Define service connection and state types connection and state types of overhead service connection

Last Answer : Service Connection:- It is the input conductor or wire which is carried out from supply company (authorities) pole to consumers' main board or premises. Types of overhead service ...  1. Overhead service connection with Bare conductor 2. Overhead service connection with weather proof cable  

State the principle of solar cell. What is necessity of series and parallel connection of solar cells.

Description : State the principle of solar cell. What is necessity of series and parallel connection of solar cells.

Last Answer : Principle of solar cell:-  Working:- Solar cell operates on principle of Photo-voltaic effect Solar cell works in following steps:  The solar cell is composed of a P-type ... of Voltage & Current rating it is necessity of connecting series and parallel connection of solar cells.

State necessity of series connection and parallel connection of batteries.

Description : State necessity of series connection and parallel connection of batteries.

Last Answer : Necessity of series connection of batteries: 1. The batteries are available with some specific terminal voltages. e. g. 6V, 12V, 24V, 48V etc. 2. If we want to have some terminal voltage other than ... batteries of capacities I1, I2, I3, I4 . are connected in parallel, all having identical emfs.

Which of the following connection of transformers will give highest value of secondary voltage ?

Description : Which of the following connection of transformers will give highest value of secondary voltage ? (A) Delta primary delta secondary (B) Delta primary star secondary (C) Star primary star secondary (D) Star primary delta secondary

Last Answer : Which of the following connection of transformers will give highest value of secondary voltage ? (A) Delta primary delta secondary (B) Delta primary star secondary (C) Star primary star secondary (D) Star primary delta secondary

Which of the following 3-phase connection of a transformer causes interference with the

Description : Which of the following 3-phase connection of a transformer causes interference with the neighbouring communication lines:  (A) Delta-Star (B) Star-Delta (C) Delta-Delta (D) Star-Star

Last Answer : Which of the following 3-phase connection of a transformer causes interference with the neighbouring communication lines: Star-Star

Is the moon a star?

Description : Is the moon a star?

Last Answer : Are you serious?!?