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PROJECT DESCRIPTION

The project is designed to develop an automatic tripping mechanism for the three phase supply system. The project output resets automatically after a brief interruption in the event temporary fault while it remains in tripped condition in case of permanent fault.

The electrical substation which supply the power to the consumers i.e. industries or domestic can have failures due to some faults which can be temporary or permanent. These faults lead to substantial damage to the power system equipment. In India it is common to observe the failures in supply system due to the faults that occur during the transmission or distribution.

The faults might be LG (Line to Ground), LL (Line to Line), 3L (Three lines) in the supply systems and these faults in three phase supply system can affect the power system. To overcome this problem a system is built, which can sense these faults and automatically disconnects the supply to avoid large scale damage to the control gears in the grid sub-stations.

This system is built using three single phase transformers which are wired in star input and star output, and 3 transformers are connected in delta connections, having input 220 volt and output at 12 volt. This concept low voltage testing of fault conditions is followed as it is not advisable to create on mains line. 555 timers are used for handling short duration and long duration fault conditions.

A set of switches are used to create the LL, LG and 3L fault in low voltage side, for activating the tripping mechanism. Short duration fault returns the supply to the load immediately called as temporary trip while long duration shall result in permanent trip.

The concept in the future can be extended to developing a mechanism to send message to the authorities via SMS by interfacing a GSM modem.

PROJECT HIGHLIGHTS
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Non-Microcontroller Project.
Branding-free material.
Automatic Load Tripping at Faults.
Call/mail for Tech Support from 10 am - 7 pm.
Can be Customized for Arduino, Raspberry Pi, PIC
BLOCK DIAGRAM
Three Phase Fault Analysis with Auto Reset on Temporary Fault and Permanent Trip Otherwise
Hardware Requirements
  • Transformers
  • Op-amps
  • Switches
  • Resistors
  • Diodes
  • Capacitors
  • LEDs
  • Relays
Software Requirements
    None
Q & A
Q:  What are the types of faults detect in this system?
A:  Three Line to Ground, three Line-to-Line and line to line are the types of faults detected in this system.
Q:  What is three phase fault analysis?
A:  The possible faults which occur in three phase are 3G, LL, 3L and analysis of these faults is called three phase fault analysis.
Q:  How does the system protect from these faults?
A:  It temporarily switches off the load when fault occurs for a very small time and goes to auto reset when fault is cleared or it permanently switches off the load when fault occurs for a longer duration of time.
Q:  Why 6 lamps are used?
A:  A series of two lamps are used to represent each phase. 2 lamps are connected in series to ensure safety.
READ WHAT OTHERS HAVE SAID
Average Rating
 4.4/5
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Showing 4 of 41 reviews Show All
V.N.KUMAR, KAKINADA on 7th June, 2016, 06:12 PM

We came to know about edgefx is through searching key words traffic signal in google
By seeing the visibility of kit and credibility of edgefx
with the right components in right time
supported team helped me to purchase kit online
To develop more projects related to all aspects
i will refer this site to our friends

Dhrupad Mukherjee, West bengal on 7th June, 2016, 04:50 PM

One of my Friends referred
Its nice basically i want to do experimental projects thats why i purchased from your website

Aakash mehta, vadodara on 6th June, 2016, 04:24 PM

I got to know about edgefx through google. I was searching final year project in google then i got edgefx website..
I have decided to buy project from edgefx because there are no other website available like this. So, i have decided to buy project from edgefx. I like most about edgefx was the circuit diagram and Presentation.
kit was delivered on time with right components..
Tarun sir and Niranjan sir has helped me in purchasing the project.
i would like to give reference to y students..

Mahesh Bharti, Dadra and Nagar Haveli on 20th November, 2015, 05:40 PM

One of my friend suggested taking the kit from Edgefx.
I decided to buy from Edgefx because all our friends are buying from Edgefx.
I directly placed order through online

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