Description
The proposed project aims at providing low voltage to induction motors through star to delta conversion. Star Delta is basically used to lower the current rate applied to motor at start and after that full load current is applied.
The project uses a set of relays that helps in shifting the motor connections from star to delta along with a time delay and six lamps in place of 3 phase motors where a single phase motor is represented by two lamps. In star mode, a system is used that starts a 3 phase motor at 440V AC mains supply 50Hz with a set of 12V DC relays and in delta mode, this is electronically adjusted with a timer.
At starting, i.e. in star mode, the lamps would glow dim and in delta mode operated by timer it will glow with full intensity. This indicates that the supply voltage in star mode was 440 roots of 3 whereas in delta there was full voltage supply of 440V. The timer consists of a 555 in mono-stable mode, and its output is fed to relay so that the mains supply gets changed from 3 phase star to delta.
HIGHLIGHTS
- Automatic Star to Delta Conversion
- In star mode a 3 phase motor at 440V AC mains supply 50Hz with a set of 12V DC relays
- In delta mode, this is electronically adjusted with a timer.
BLOCK DIAGRAM
HARDWARE REQUIREMENTS
- IC 555
- Transformer
- Relays
- Resistor
- Capacitor
- Diode
- AC cable
- Transistor
- LED
- Bulb Holder
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I saw this project video on youtube and desided to purchase this kit. I got this kit in time with in good condition. With the help off eplanatory video I can understand all concepts easily.
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As a 3rd year diploma student, I was very pleased with this project. The package was delivered on time and in complete working condition.thank you Electrosal.
Pranoti Shinde –
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Sunil Nale –
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electrosal –
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Anuja Pujare –
Very Good
Raghu (Abu Dhabi) –
yesterday i received my ARDUINO BASED UNDERGROUND CABLE FAULT DETECTION project kit.. kit had all the components and parts as mentioned in component lists. Looking forward to start working on it.
Parul Yadav –
packing for the extra components was not that good and I reported the issue to the Electrosal team. System worked without any issue though, hope they make sure the packing for the next orders will be bette
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