02-04-2017, 10:54 PM
project report on automatic star delta starter
|
automatic star delta starter project report download pdf
|
project report on automatic star delta starter
11-04-2017, 11:22 AM
Star / Delta starters are probably the most common low voltage starters in the world of 50Hz industrial motors. Star delta is used in an attempt to reduce the starting current applied to the motor. Then, the full load current is applied to the motor. The Star / Delta starter is generally manufactured from three contactors; And an electromechanical timer and thermal overload for the operation of a three-phase motor at 440 volts at 50 Hz AC power. The interlocking arrangement of all the coils of the contactor is traditionally wired at 440 volts AC.
This project uses a system to start a three-phase motor at 440 volts AC power at 50 Hz with a set of 12 volt DC relays in star mode first and then to delta mode using an electronically adjustable timer. A set of relays is used to change the motor connections from star to delta with a time delay. The six lamps instead of a 3-phase motor, ie two lamps representing each phase winding of the motor. The interlocking arrangement of the relay coils and the electronic timer are connected to 12 volt low voltage DCs powered from a built-in DC power source for safe starter handling during the study. It still retains its application for a 3 phase motor that starts with single phase prevention as well.
During star operation, the lamps would light up dark indicating that the supply voltage across the coils is 440 / root of (3). In the delta condition after the timer works the lamps would shine with full intensity indicating the full source voltage of 440volts. The timer comprises a 555 in monostable mode whose output is fed to a relay to change the power supply of the three-phase to delta star network.
This project uses a system to start a three-phase motor at 440 volts AC power at 50 Hz with a set of 12 volt DC relays in star mode first and then to delta mode using an electronically adjustable timer. A set of relays is used to change the motor connections from star to delta with a time delay. The six lamps instead of a 3-phase motor, ie two lamps representing each phase winding of the motor. The interlocking arrangement of the relay coils and the electronic timer are connected to 12 volt low voltage DCs powered from a built-in DC power source for safe starter handling during the study. It still retains its application for a 3 phase motor that starts with single phase prevention as well.
During star operation, the lamps would light up dark indicating that the supply voltage across the coils is 440 / root of (3). In the delta condition after the timer works the lamps would shine with full intensity indicating the full source voltage of 440volts. The timer comprises a 555 in monostable mode whose output is fed to a relay to change the power supply of the three-phase to delta star network.
It can be understood in the following video:
|
« Next Oldest | Next Newest »
|
Important Note..!
If you are not satisfied with above reply ,..PleaseASK HERE
So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
| Possibly Related Threads... | |||||
| Thread | Author | Replies | Views | Last Post | |
| I need this pdf for my project | 0 | 1,553 |
31-03-2021, 01:42 PM Last Post: |
||
| project report | 0 | 4,033 |
12-09-2020, 07:27 PM Last Post: |
||
|
invitation to graph theory by s arumugam pdf download graph | 2 | 34,182 |
26-07-2020, 08:44 PM Last Post: Ezhilan2 |
|
| Project on plastic money in Marathi pdf... | 0 | 4,001 |
31-05-2020, 03:29 PM Last Post: |
||
| Report in PDF format | 0 | 7,568 |
18-05-2020, 11:28 AM Last Post: |
||
| Pdf Download | 0 | 20,617 |
07-11-2019, 08:06 AM Last Post: |
||
| salaam chaus superfast english book pdf free download | 2 | 26,780 |
30-06-2019, 09:27 PM Last Post: Sharad7shakky |
||
| engineering mathematics 2 by dr ksc pdf free download | 2 | 6,208 |
21-02-2019, 01:00 PM Last Post: |
||
| Multi purpose machine project report | 0 | 2,119 |
20-02-2019, 10:23 AM Last Post: |
||
| modern electric traction h partab book pdf to download | 2 | 12,424 |
15-02-2019, 08:14 AM Last Post: chirag bafna |
||