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PROJECT DESCRIPTION

The aim of this project is to develop a low voltage and high voltage tripping mechanism to protect the load from damage. The fluctuation in AC mains supply is frequent in homes and industries. The sensitive electronic devices in these conditions can get easily damaged. It is preferable to have a tripping mechanism to protect the load.

This proposed system will trip the load in the event of the input voltage falling below/above a set value. Two comparators are used as window comparator formed out of one quad comparator IC. This delivers an error output if the input voltage to them crosses the range beyond the voltage window. A relay is then operated to cutoff the load for safety reasons. A lamp is used as load in this project. It is extended by integrating an alarm, which sounds when the tripping takes place

 It can also be enhanced in future by interfacing with a GSM modem to convey alert message to the user via SMS to take appropriate action.

PROJECT HIGHLIGHTS
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Pre-programmed Microcontroller.
High-Resonance Frequency Transformer.
Call/mail for Tech Support from 10 am - 7 pm.
Can be Customized for Arduino, Raspberry Pi, PIC
BLOCK DIAGRAM
Hardware Requirements
  • LM 339 quad comparator
  • LED
  • Voltage Regulator
  • Resistors
  • Potentiometer
  • Capacitors
  • Diodes
  • Relay
  • Lamp
  • Transformer
Software Requirements
    None
Q & A
Q:  What is the formula for calculating smoothing capacitor value?
A:  There is some approximated formula .Peak to peak ripple voltage = Load current in amps / (2*line frequency in hertz *capacitance in farads). But as rule of thumb for 1 A current 1000uF is best. Thus it is load dependent.
Q:  What to do when the lamp fails and what is the maximum lamp rating that can be used?
A:  If the lamp fails one can use any lamp or bulb which is used in homes up to 100W. We suggest you to go for low watt bulbs.
READ WHAT OTHERS HAVE SAID
Average Rating
 4.5/5
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Showing 2 of 2 reviews
Jeetendra, Manglore on 1st June, 2015, 06:27 PM

I come to know about Edgefx through my senior. I decided to buy a kit from Edgefx through site because it is attractive and all the things were assembled clearly. I like the complete kit. Yes and I submitted my project in college and I completed my project successfully.No I directly purchased through online.No Improvements required.

vivekananda, Hyderabad on 7th April, 2014, 03:21 PM

Good projecta nd its a great experience with Edgefx.

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