Automatic Star_ Delta Starter with timer for three phase induction motor/wiring Diagram
2.3 هزار بار بازدید -
3 سال پیش
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In this video I want
In this video I want to explained How to Connection Star_ Delta Starter with timer for three phase induction motor wiring diagram
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Explain Components:
1) MCB(Miniature Circuit Breaker)
MCB are Electrical mechanical Devices.
Which are used to protect an electrical circuit an over current .
It can be closed without any hand-operated restoration.
MCB is used as an Option to the Switch in most of the circuit.
2) Contactor Type ()
Basically, a contactor is an electrical Switch device.
It is used for switching an electrical circuit on and off.
It is a special type of relay, it has inpute, output terminal, coil contact, and axillary contact.
more video...
What is Star Delta Starter?
Most small size induction motors are started directly by direct on line starter, but when very large motors are started with this way, they cause a disturbance of voltage on the supply lines due to large starting current surges.
To limit this starting current surge a large induction motors are started with reduced voltage and when they run up to near full speed ,they connected with the full supply voltage
For reduction of starting voltage two method are used one is star delta starter and another is auto transformer starting .
Working Principle of Star Delta Starter
In this method the motor starting voltage is reduced so that it limit the starting current surges. In this technique the motor winding initially connected with Star configuration and due to which its reduced the voltage across each winding. This also reduced the torque of motor by a factor of three.
After specific period of time which is set with the help of timer ,the winding are reconfigured as delta and the motor run normally. Star-Delta starters are the most commonly used in our daily life.
There is only two electromagnetic contactor which are closed during running of motor .These two contactor are named as Main contactor and Delta contactor. The third Contactor which is Star Contactor and that only become On when then motor is initially staring for a specific period of time which is set with the help of timer in automatic star Delta Starter.
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Watch Video share with friends.
Explain Components:
1) MCB(Miniature Circuit Breaker)
MCB are Electrical mechanical Devices.
Which are used to protect an electrical circuit an over current .
It can be closed without any hand-operated restoration.
MCB is used as an Option to the Switch in most of the circuit.
2) Contactor Type ()
Basically, a contactor is an electrical Switch device.
It is used for switching an electrical circuit on and off.
It is a special type of relay, it has inpute, output terminal, coil contact, and axillary contact.
more video...
What is Star Delta Starter?
Most small size induction motors are started directly by direct on line starter, but when very large motors are started with this way, they cause a disturbance of voltage on the supply lines due to large starting current surges.
To limit this starting current surge a large induction motors are started with reduced voltage and when they run up to near full speed ,they connected with the full supply voltage
For reduction of starting voltage two method are used one is star delta starter and another is auto transformer starting .
Working Principle of Star Delta Starter
In this method the motor starting voltage is reduced so that it limit the starting current surges. In this technique the motor winding initially connected with Star configuration and due to which its reduced the voltage across each winding. This also reduced the torque of motor by a factor of three.
After specific period of time which is set with the help of timer ,the winding are reconfigured as delta and the motor run normally. Star-Delta starters are the most commonly used in our daily life.
There is only two electromagnetic contactor which are closed during running of motor .These two contactor are named as Main contactor and Delta contactor. The third Contactor which is Star Contactor and that only become On when then motor is initially staring for a specific period of time which is set with the help of timer in automatic star Delta Starter.
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3 سال پیش
در تاریخ 1400/06/22 منتشر شده
است.
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