Protection of three phase induction motor

The project ?Protection of Induction Motor? has the capability to monitor and display current, voltage, temperature,  phase sequence, phase failure and to detect the faults like over and under voltage fault, over current fault, phase failure, phase sequence, temperature faul

Project Title

Protection of three phase induction motor

Project Area of Specialization

Artificial Intelligence

Project Summary

The project “Protection of Induction Motor” has the capability to monitor and display current, voltage, temperature,  phase sequence, phase failure and to detect the faults like over and under voltage fault, over current fault, phase failure, phase sequence, temperature fault and ability to protect the motor from these faults. To avoid the faults in its rotation, the protection scheme need  voltage and current sensors which are used to monitor and display per phase value of voltage and current and send signal to arduino. Arduino process the signal and sends instruction to relay according to the sensor's data if the value of voltage and current is greater than its rated value, ardunio display fault on screen and also turn off the motor using relay. Temperature sensor is used  to detect the heat if temperature exceeds the desire level, arduino turns off the motor. XOR gate ic and lm 324 is used for phase sequence. In protection scheme we are using positive phase sequence(RYB) and for other phase sequence arduino send signal to relay, turn off the motor also display fault on lcd. If one of the phase is missing, voltage sensor send signal to ardunio.  Arduino display phase failure on lcd and also send signal to relay to turn off the motor.  

Project Objectives

The main objective of this project “Protection of Induction Motor” is to design a system to

• Autonomously detect fault and turn off the motor.
• Portable.
• Reduce electrical damages.
• Reduce fire damages.
• Rapid response to fault.
• Cost effective

Project Implementation Method

The main brain of proposed project is the Arduino mega, but to sense and remove the fault it will use voltage and current sensors, temperature sensor , XOR gate ic and lm 324  these are used to detect faults. So, we will use three phase ac supply at the end of each phase we used a step down transformer converts 220/12v ac after that we are using a rectifier circuit which convert ac to dc.12v dc supply is used in voltage sensor, it sense the voltage if it exceeds to 440v or less than 360v volatge sensor sends signal to ardunio. Arduino process the signal turn off the motor using relay module and also display the type of fault on lcd. Using these voltage sensors we are also providing phase failure protection. lm 35 temperature sensor is also used if temperature exceeds to 45 degree it display on lcd and turn off the motor. Current sensor is connected in series with main supply, we are using 0.5hp motor so we are using a check on 0.3A current if it exceeds motor turns off and ardunio display fault on lcd.  XOR gate ic and lm 324 is used for phase sequence. In protection scheme we are using positive phase sequence(RYB). XORgate check the phase difference between them which is 120 degree and for other phase sequence like (BYR,RBY, YBR............) arduino send signal to relay, turn off the motor also display fault on lcd. A man always desires a device as a safety precaution at his workplace and it’s surrounding to handle some kind of specific tasks, like in case of any fault there is a risk of motor damaging, or burning of motor winding, in that case it effects the working of auxiliaries attached with the motor .So we need to take proper precautionary measures to avoid any kind of destruction. Design methodology consist of software, hardware part and implementation of the both. After making it, the design results that are obtained, are very satisfactory.

Benefits of the Project

• Protects the motor from these faults.
• Provides the facility to turn off the motor automatically in case of over and voltage, over current, phase failure, phase missing, temperature fault.
• Expands the lifetime of induction motor.
• Provides smooth running of induction motor.
• Minimize the financial losses.
• Improve efficency of motor.

Technical Details of Final Deliverable

Hardware of proposed project consist of following components

Ardunio voltage sensor module:

Resistance point pressure is the working principle of this module. The input voltage of the terminals can be reduced five times the original voltage. And the maximum Arduino input voltage(analogue) is 5V. so it should not be more than 5Vx5=25V. And for 3.3V the input voltage shouldn’t be more than 3.3Vx5=16.5V. Because an Arduino AVR chip has 10 bit AD so resolution of this module simulation is zero. 00489 V  (5   V   /   1023), and the input voltage of this simulated module should be more than 0.00489Vx5=0.02445V.

Fully integrated ,Hall effect based current sensor :

 The acs 712 consists of following things on it

• 100 mV/A output sensitivity
• 5.0 V, single supply operation
• Output voltage proportional to AC or DC currents
• Factory-trimmed for accuracy
• Extremely stable output offset voltage
• Nearly zero magnetic hysteresis
• Ratiometric output from supply voltage
• Low-noise analogue signal path

Relay module:

  • Contact current is 10 Amperes and voltage is 250Volts(          AC) or 30Volts( DC).                 

  •  Each channel contains indication LED.

  • Coil voltage is 12Volts/channel.

  • Operating voltage of the KIT  is 5 to 12 Volts

  • Signal(input) is  to 3 to 5 Volts/channel

. • Three pins for normally open and normally closed for each       channel, 0 magnetic hysteresis

Battery LCD 20*4

I2C Module

LM35

LM324

Magnetic contactor

Transformer

7486 XOR IC

Final Deliverable of the Project

HW/SW integrated system

Type of Industry

Energy , Others

Technologies

Artificial Intelligence(AI)

Sustainable Development Goals

Industry, Innovation and Infrastructure

Required Resources

If you need this project, please contact me on contact@adikhanofficial.com