Can electricity pass through flash light?

      Following story is being spread through e-mails. It is said to be a true incidence. 

  "A boy aged 19, who was studying in 1st year of engineering, who died in Keshvani Hospital, Mumbai. He was admitted in the Hospital as a burned patient.

Reason??

     This boy had gone to Amravati (a place located in State of Maharashtra ) on a study tour, on their return they were waiting at the railway station to catch the train. Many of them started taking pictures of their friends using “Mobile Phones” and / or “Digital Camera”. One of them complained that, he was unable to capture the full group of friends in one frame in the Digicam.

      This boy moved away to a distance to get the whole group.

     He failed to notice that at an angle above his head, 40,000 volts electrical line was passing through.

     As soon as he clicked the digital camera? 40,000 volt current passed through the camera flash light to his camera and then from his camera to his fingers & to his body. All this happened within a fraction of a second. His body was half burned.

     They arranged for an ambulance & his burned body was brought to Keshavani Hospital, Mumbai.For one & half days or so he was conscious & talking. Doctors did not have much hopes as there was a lot of complex issues in his body. He passed away later."

Now the question comes in mind that "Can electricity pass through flash light?"

Answer:

     Electricity can pass through flash light only when many complicated initial conditions are applied on that incident place.

     Above story can be studied well through following statements;

1. Light doesn't conduct electricity that is one of the stupidest thing's I've ever heard.

2. But what if it has nothing to do with the light? It takes a high voltage capacitor discharge to drive a xenon flash bulb. If he was close enough to the power lines that it was on the verge of arcing anyway, could that discharge somehow have been enough to trigger the arc?

Further information can be taken by visiting following forum link.

http://community.discovery.com/eve/forums/a/tpc/f/7501919888/m/85819290501

Also, one can visit Yahoo Answers link for this question by clicking here

     Now, how many of us are aware about these technical threats & dangers? Even if we are, how many of us are adhering?? Now should we call ourselves as educated and knowledgeable people?

1. Please avoid mobile phones on petrol outlets.

2. Please avoid talking on mobile phones while driving.

3. Change that “Chalta Hai Yaar Attitude”.

4. Please avoid talking on mobile phones while kept in charging mode without disconnecting from wall socket.

5. Please do not keep mobile phones on your bed while charging and / on wooden furniture.

6. Avoid using mobile phones / Digital cameras near high voltage electrical lines like in railway stations and avoid using flash.

Admitted

     Oh..!! It happened... From last 4 months we were in Admission process and finally we have been allotted to various institutes. 4 months admission process was so boring... On 26th August, 2011, we got our degree colleges. In first round, All has been selected for Autonomous institutes. Here is brief list;

Serene Saptsagar - College of engineering, Pune (COEP)

Sourabh Kulkarni - Dr. Babasaheb Ambedkar Technological University, Lonere, Raigad (BATU)

Pratik Joshi - Dr. Babasaheb Ambedkar Technological University, Lonere, Raigad (BATU)

Sagar Sutar - Rajarambapu Institute of Technology, Islampur. (RIT)

Amol Suryawanshi - Zeal education society, Pune

Moneshwar Sutar - Rajarambapu Institute of Technology, Islampur. (RIT)


     Another interesting thing to notice is that, This is our 50'th Blog post.

College Memories: Home Life Vs Hostel Life

     As we rise up from school and college, a time comes when one has to choose either home or hostel for further studies. There are many young students, both girls and boys who are brought up in Hostels during their studies. Others are lucky who completed their education from home. What do you think? which one is better?.... Home or Hostel?

     It really depends on the age and the surrounding conditions you are living in. Its not really advisable for children's under the age of 15 to stay away from home. You need to be well mannered as you are going to be a part of the tomorrow's society and being social is a critical factor for you to lead a smooth life.

     Even if life at home cannot be compared to the life in a hostel, lets check out some reviews, suggestions, experiences shared by students from all over world over internet. We fetched best of suggestions from top rated question-answering sites like Yahoo, Indiaforum, indiastudychannel, etc.


Home Life:
1. It is safe.
2. We learn to manage relations
3. No fear of ragging, politics, etc.
4. Support and guidence by elders during depressed situaions.
5. Less chances to have bad habits like smoking, drinking, etc.
6. You don't really get to meet people in the world.
7. Usually kids that get home schooled are shy!


Hostel life:

1. Atmosphere of studies is great.
2. We learn how to manage money.
3. Learn to take decision by ourself. (Increases your self confidence)
4. Makes person matured.
5 Brings lot of responsibilities.
6. Teaches how to adjust.
7. We miss our parents and relatives.
8. No opposition and guidance by elders.
9. Students grown up in hostel become naughty.
10. Bad meal service.


     If you think that Home life if good then you should go in deep on 6th and 7th point under Home life. If you are in favour of Hostel life then you should know that one can easily be spoiled in company with bad guys. (Fact is that these type of guys are everywhere in the society ,we cannot run away from them but can choose our friends wisely.)

     Now, Its completely depend on you which type of life you enjoy.

Loss less (less losses) transmission through Gas Insulated Transmission system.

Introduction:

     Gas Insulated Transmission line (GIL) is best choice where High rating power transmission is needed. It is nothing but 2 Conductors, Gas mixture and supporters (Resistive support). Gas Insulated Lines are environmental friendly and technically easy to implement. Its operational features are also excellent.

Construction:

     GIL consists of 2 concentric Aluminum tubes. The tubes are made of corrosion resistive aluminum alloy. Outer conductor is to cover inner conductor and gas filled in it.  Tubes are welded by computerized process and tested by ultrasonic device to inspect and remove cracks and to ensure that system is gas-tight. Outer tube is taken as ground potential. A particle trap is inserted in the tubes to increase their life.

Cast resin insulators are used to support inner conductor. These insulators also helps to put inner Aluminum tube at center.

     Mixture of gas is filled between inner and outer tube. This increases insulating capacity of Transmission line. Mixture of gas consists of 80% Nitrogen and 20% SF6 (sulphur hexafluoride) which provides electrical insulation.

     Length of GIL lies between 60km to 100km. Because of the large cross section of the conductor, electrical losses in GIL are less when compared with other transmission systems. So, transmission and operating cost reduces.

Advantages:

Cooling system:

     Due to large outer tube surface GIL don’t require any sophisticated cooling system.

Reactive compensation:

     Gil have low capacitance. Dielectric losses are also less, so, reactive compensation is not needed.

High safety:

     Due to presence of SF6, GIL are capable of extinguishing any arc produced in it at the time of failure. GIL are fire resistant. So safety to person and environment is ensured.

Highest reliability:

     GIL is being used all over world from last 35+ years without any case of failure.

Maintenance is less:

     Electrical and thermal aging in case of GIL is less hence very less maintenance is required. (Once in 50 years)

Low emission of magnetic fields:

     The conductor current in the inner aluminum tube induces a reverse current of the same size. Consequently the electromagnetic field outside the GIL is negligible. No special shielding is required even in areas which are critical with respect to EMC (e.g. airports or computer centres or in populated areas).

Landscape view:

     GIL can be used underground without any special shielding. It can be replaced by high towers and landscape view of surrounding can be maintained. It also reduces unwanted usage of land.

Arrangement:

     GIL can be used horizontally, vertically or in any inclined arrangement.

Applications:

     GIL are commonly used for transmission systems with 345-550 kV operative voltages and 2500-5000 Amp operation current. Following are general sites of applications;

1. Feeder connections in power plants

2. Transmission systems in tunnels beneath cities

3. Transmission of EHV (Extra High Voltage) is required within restricted places.

Some technical information:

Typical Technical voltage : 220-500 kV

Maximum operation voltage: 245-550 kV

Nominal frequency: 50 / 60 Hz (as per system design)

Housing and conductor material: Aluminium alloy

Insulation gas: Gas-mixture (80% N2 and 20% SF6)

Nominal pressure (absolute): 0.7 MPa

Environmental temperatures: -30°C up to +50°C

Weight per phase: 50-70 kg/m (Approx.)

Capacitance: 55 nF/km

Inductance: 0.205 mH/km

Surge impedance: approx. 60 Ohm

Electromagnetic field: negligible µT

Source: Siemens

(This post is demanded by Pratik Kerimane.) 

Sourabh B'day & Suren's Godrej joining party

12 August 2011 was like friendship day for us. 

At 12 PM : We came together.

3 PM : We decided to go for movie. 

4 PM :  Watched "Final Destination part 5". (Click here to read movie review)

6.30 PM : After that we planned a small party. 

     Party was planned at our regular location (China Hut, Vishrambag). Treat was given by Suren (for joining Godrej) and Sourabh (B'day celebration). We missed Mahesh so much as he can't get leave for that night. He also working in Godrej. This time, two new friends joined us, Shreyas Kulkarni and Sachin Bhandare. Both enjoyed the night. Check out pics...

Give your precious time to spread the word about this blog. Share this page by clicking on Left side floating pane.

Electrical seminar topics by Electrical students

     Are you searching for seminar topic related to electrical field? You are at right place. We are listing some seminar topics which will definitely help you. As a student, we know how it feels while searching for such subject. For this we divided our specially selected topics into three groups. If you are searching topic for short time college seminar then go for simple category. If you are thinking seriously to do a qualitative seminar then go for difficult topics.

Easy:

1. Energy Conservation

2. Power factor improvement methods 

3. Voltage Sag Analysis
4. HVDC Converter.
5. Static Relay

6. Circuit breaker: Types and functions
7. Traction System

8. Power Factor Correction

9. Electrical fuses & its Application
10. Review of Electricity Act -2003

11. Power factor improvement

12. Battery charger

13. Tariff scheme

Medium:

1. Wireless power transmission

2. SCADA and power system automation (substation automation)

3. Advancements in Renewable resources

4. Energy efficient motors

5. Advances in Transformer design

6. Illumination With Solid State Lighting

7. Power Consumption Minimisation in Embeded Systems

8. Fundamental Limits Of Silicon Technology

9. Solar Power Satellite
10. Buck Boost Transformer

11. Protection of Distribution System

12. Super conductor 

13. Lightning Protection Zones

14. Reactive power management

15. Motor Protection

16. Energy Audit

17. Traction Drives

18. Generator Protection

Hard:

1. Smart Grid - Future electric Grid

2. Load scheduling and load shedding

3. Present Challenges facing by electrical grids

4. Liquid Electricity
5. Digital Testing of High Voltage Circuit Breakers
6. Flexible A.C. Transmission

7. Loss less (less losses) transmission through Gas Insulated Transmission system. (See our blog post on this topic)
8. Harmonics and their impact on power system elements ( now a days use of non linear loads increasing drastically)
9. Welding Robots

10. Surge current protection using superconductors

11. High voltage testing of Transformer

12. Testing of 3 phase induction motor and trouble shooting

(If you wish us to write any specific topic then send e-mail to pratikpjjoshi@hotmail.com and we will write a blog on that topic)

save electricity practically

TV/ Computer

1. Don't put your Computer on "Stand by" mode. Either use it or put it OFF.

2. When you need to go away for some minutes, closing Monitor screen saves lots of electricity.

3. White color screes consumes more energy than black screen. Try to use Dark color (Not only Black) background for you desktop.

4. Avoid setting screen saver for you Computer. It consumes more electricity.

5. Use LCD or LED type monitor for your computer or TV, it saves 75% of power and harms less on your eye.

6. Use switch instead of remote to turn off your TV.

Washing machine

1. Instead of using hot water. Use warm (or cool) water.

2. Don't use washing machine only for 3-4 cloths. It is purely waste of electricity as well as water. Use it only when you have sufficient amount of cloths to wash.

Refrigerator

1. Don’t set the thermostat of your refrigerator too high. changing the temperature even one degree can affect your electricity bill.

2. Don't place refrigerator in a sunny spot. Move it or cover the windows.

3. Decide what you need from the fridge before opening it so that you can save electricity and avoid standing with the door open while you search for food. Opening refrigerator once wastes 30% cold generated from it.

4. Don't put too hot things in refrigerator. Give it a little time to be normal.

Mobile/ Laptop

1. Don't charge mobile whole the night. Make a habit of charging it regularly at particular time. e.g. While you go for morning walk, bathing, taking lunch or dinner, etc

2. Charge your laptop only when it shows 15% battery remained. Charge it fully. This will increase battery and charger life and you will be free from frequent charging.

Tube/Fan/Air Conditioner

1. Switch off lights, fans and other gadgets when not required.

2. Area in front of air conditioning vents should be free. Don’t put furniture and other stuff in front of it.

3. Put off the AC half (or switch it off) an hour before you leave the room.

4. Ensure that the room is packed before starting air conditioning. (Close doors and windows)

5. Using fluorescent light bulbs is always beneficial as they use 75% less energy than ordinary incandescent bulbs.

6. Clean the tubes and perform oiling of fans. This can save some power also it increases your appliances life and safety.

7. If height of roof is too high then increase length of connecting rod. Dot put it too down. Be sure that it will not harm anybody.

So, you see it is not difficult at all to get that electric power going that extra mile if only we make a habit of few simple rules in our everyday life.

     "Teach others to save electric power from your example. Don’t do it for money. Do it for this lovely environment. For sparrows, birds and wildlife. For your loved one’s."

Free online dictionary review

     We human always search for information. Information may be related to latest news or gossip or a long time ago history. Internet is great source to fetch information from various locations situated all over the world. Today internet is easily available everywhere and people are using it for infinite purposes. 

    Dictionary is the thing which occasionally required by students. Todays fast life does not allow you to travel with heavy physical dictionary (printed dictionary). Online dictionary helps you by providing almost updated and accurate definitions and meanings. Here are our top 3 suggestions about using online dictionary;

Google hidden dictionary:

     Have you ever tried "Google Hidden Dictionary" for finding your queries?

    You must tried "Google search" for finding meaning for your keyword search. We will tell you how to get actual dictionary meaning on your google results page. Just put syntax "define:" before your search query. for example, if you are searching for word 'Voltage', then type "define: voltage" (Without double inverted comma) in Google search box.

The Free dictionary:

     This one is amazing. you can switch between medical, legal or financial dictionary. Other features are encyclopedia, acronyms, idioms. This page is quite complicated due to ads shown. Once you become familiar with this page, then it is easy to find exact result in minimum time.

Dictionary.com:

     This one is simpler than previous site. their search box is wide and results are also in simplified version. 

friendship day celebration

F=Free from all formalities 

 R=Right to say any thing 

 I=In anyway 

 E=Either good or bad 

 N=No sorry no thanx 

 D=Daatnaa peetnaa allowed 24 hours

     Yes, thats the original definition of friendship! The bond which is worth than any relationship. (provided if you have true friendship)For us, friendship means "A single soul dwelling in 8 bodies." We celebrate this day just like another day because for us, Friendship is 365 day celebration.

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     Let's gear down today with our sweet memories.

First  Video

Third Video

Raje Dance

Fourth Video

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     Be our friend, select your bracelet and add us in your friends list. (Click here to add)

     We are not different than below;

So, enjoy the day and have a friendful year 

Turning towards education..

Hi all,

     Today, we are sharing something important about this blog. When we started this blog, our aim was to track our college days over internet so that we can memorize them anytime and anywhere. Today we have all our happy days with us.

     After completing diploma, we have less activities and less meetings. To run this blog, we decided to start posting articles related to our branch i.e. Electrical. Those articles will help you to learn new facts of electrical engineering. We will start from simple topics e.g. how to reduce electricity bill, etc. We will be posting group updates also. We hope that you will be enjoying with us.. 

From,
Cool AMPSS...

Shimoga trip photo's

     After "Bhairavgad Trekking photo's", "Our college campus stills" and "Konkan trip snaps", Lets share something private! No No, its not that private. We mean our private tours. Other than group tours. Suren, Sourabh and Serene went to Shimoga with their family and clicked awesome photo's. 

Bhairavgad trek (Summer,2011)

     After College campus pics, and Konkan Trip pics, today we are sharing our summer trekking trip photo's. In summer 2011, we Pratik, Sourabh, Sagar and Moneshwar from our group and 4 others (Sachin Bhandare, Anhishek Deshpande, Sunil Yasav and Ajinkya Shinde ) went to 2 day 1 night trekking to Bhairavgad near Patan (Satara District, Maharashtra, India) Most of us had their first trek. 

     Journey of return was quite painful but this time also we have bunch of 6000 photo's. Now sharing best of them;

Also see;
1. Kokan trip photos (Marleshwar, Ratnagiri, Ganpatipule)

2. Our College Campus pics