electrical theory and electrical fundementals for all electrical related people . students , engineers, electrician #electricaltheorems,electrical,

Thursday 21 December 2017

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Play Music Using Light | LiFi system

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LiFi System


Light Fidelity (Li-Fi) is a new paradigm in wireless communication. In this article, we describe the design of a Li-Fi dongle (transmitter) and speaker (receiver) for audio and music applications. The proposed system is a replacement for wired speakers that plays audio signals received through light.

1. The LED light in a room is used not just to light up the room but also to play music, thus giving benefits of both the worlds. Also, LED bulbs use 85 per cent less energy than incandescent bulbs and last up to 20 times longer, whereas majority of Bluetooth modules are battery powered and generally last a year or two only before they need replacement. Hence the proposed system is energy-efficient over Bluetooth version.

2. You can receive Li-Fi data as long as you are in the range of the light being emitted by the LED light source. Hence, the range depends on the strength of the light being emitted.
3. Connectivity needs to be established between the Bluetooth transmitter and the receiver, whereas with Li-Fi any user can receive data and play music on his speaker by simply keeping the receiver in the range of LED light source.
4. The proposed system can be used with any audio system by just connecting the Li-Fi dongle to its audio output jack, with no pairing and connectivity requests. This overcomes the problem of connecting a Bluetooth speaker to audio systems that do not have USB port and Bluetooth support, which is otherwise a tougher task.
5. The proposed Li-Fi dongle and speaker costs lower than a Bluetooth dongle and speaker.
The proposed concept is illustrated in Fig. 1. It uses a Li-Fi dongle to transmit audio signals from a source such as mobile phone, and a Li-Fi speaker with solar cells at the receiver end to receive audio signals without wires.
The proposed Li-Fi dongle is connected to the audio jack output available on mobile phones. It has an LED through which audio/music signals are transmitted as light signals. These light signals are captured by the Li-Fi speaker through the solar cell array.

Circuit and Working Details


shows the circuit of the Li-Fi dongle. It uses three common-emitter (CE) amplifiers connected in parallel to amplify the input audio signal. The Li-Fi speaker is designed by connecting the output of a 3V, 200mA solar cell array to a speaker’s audio input. For this, connect the terminals of the solar panel to a 3.5mm female audio socket. Then, connect the 3.5mm audio jack from the speaker to the female socket.
However, you need not buy the exact speaker or Li-Fi speaker. Any speaker with inbuilt amplifier will do the job. You can modify the same to work as a Li-Fi speaker by interfacing a solar panel to it. After adjusting the band equaliser in the audio source and the distance between the solar panel and the light source, you can get almost noise-free sound from the speaker.
The maximum distance/range between the transmitter and receiver depends on the number of amplifier stages. For a three-stage CE amplifier, the maximum distance is about two metres with LED illuminance of 13,842.00 lux at the receiver side. For a five-stage CE amplifier, the distance can be up to 2.6 metres with LED illuminance of 17,382.00 lux. It was observed that as you increase the number of CE amplifier stages connected in parallel in the transmitter circuit, the intensity of LED light also increases, which, in turn, increases the maximum distance up to which the sound is audible from the Li-Fi speaker.

Sunday 8 October 2017

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HOUSEPARTY- Group Video Chat Application

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HOUSEPARTY APPLICATION 




Houseparty is the group video chat app that you’ve been missing in your life. It’s simple, synchronous and social. We empower people to have more frequent conversations with the people they care about most, meet new friends, and have fun together - wherever they are.







    

Thursday 5 October 2017

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ONMOVIES APP FOR MOVIE DOWNLOADING

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On movies app is used for download new Movies and Watch Live TV









Saturday 23 September 2017

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Adobe All Software downloading With Crack

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Download Adobe 2017 All products and crack the software using simple step.
 Download adob creative cloud and software crack generator in the below download link


Open Creative cloud and Install the software

 Open App tab and install your favorite adobe application in trial version

After install and dont open the software

Open AMT EMU software

Select your software and Click to Insatll Button

Select software path in  C Drive and select dml file

Download Creative Cloud and Crack App

 

 
https://drive.google.com/open?id=0B4kZe0Cro-SMZzdoZE1pMXN4enM

 

Friday 25 August 2017

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Google Lite App Download

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Google Search Lite App 

Google is trialing a lightweight Search app on Android with some users in Indonesia, that should work better than the default tool on slow mobile networks.
First spotted by Android Police, the app is currently labeled ‘experimental’ and features a search bar along with customizable shortcuts to get to various kinds of content, including news, weather, popular sites, and Google’s translation service.


‘Search’ works blazing fast when it comes to surfacing results, and you can use the baked-in browser, which seems to be delivering pages in Google’s Lite Mode to reduce load times. There’s even an option to switch between languages for search by simply swiping sideways on the screen.


You’ll also find shortcuts to take you straight to different categories of content, like motoring and entertainment news; for ‘fashion’ and ‘beauty’, the app simply displays an endless stream of images, which you can share, download or follow through to the pages they’re from.

Sunday 13 August 2017

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HOLO- AR Camera Application

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Holo lets you add holograms of real people and animals into your world and take photos & videos to share with friends. Have fun Holo-mixing! :)

- Create funny and unique content by adding a Holo character into your camera and snapping a photo or video.

- Choose from a variety of holograms including movie characters, celebrities, athletes, musicians and comedians, as well as fun original characters and animals. New Holo characters released weekly!

- Adjust the hologram by resizing, moving, or rotating it, even while recording your Holo.

- Save your Holo videos and photos to your phone's gallery.




- Share your Holo with friends on social and messaging apps, including Instagram, Snapchat, Facebook, Twitter and more.






Monday 3 July 2017

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SWIFTKEY - EASY MALAYALAM TYPING KEYBOARD

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SWIFTKEY KEYBOARD

SwiftKey is an input method for Android and iOS devices, such as smartphones and tablets. SwiftKey uses a blend of artificial intelligence technologies that enable it to predict the next word the user intends to type.




DOWNLOAD SWIFTKEY KEYBOARD



How to Use Swiftkey keyboad


Watch this Video


               

Sunday 2 July 2017

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BEST PHOTO EDITING APPLICATION

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SNAPSEED

Snapseed is a photo-editing application produced by Nik Software, a subsidiary of Google, for iOS and Android that enables users to enhance photos and apply digital filters

HISTORY.

Nik originally launched Snapseed on the iPad in June 2011, and it was named iPad App of the Year 2011 by Apple. Building on the success of the iPad version, Nik launched Snapseed for the iPhone in August 2011. Later, on February 27, 2012, Snapseed was announced for Microsoft Windows.
Subsequent to the Google take-over, Snapseed was released for Android in December 2012 and the desktop version of Snapseed was discontinued.
On April 9, 2015, Nik released Snapseed 2.0 for iOS and Android, bringing new tools, features, and a refreshed user interface.

Down Load Snapseed


How to use Snapseed
Watch this Video



               

Friday 30 June 2017

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How to Select Starter for Motor

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SELECT BEST STARTER FOR MOTOR



Motor starters are available in different ratings and sizes depending on the motor (AC motor) rating and size. These starters safely switch the necessary power to the motor and also prevent the motor from drawing heavy currents.


Need to Connect a Starter to Induction Motor

                      A starter is needed for an induction motor (three phase type) in order to limit the starting current. In a three phase induction motor, the rotor induced emf is proportional to the slip (it is the relative speed between stator and rotor) of the induction motor. This rotor emf drives the current through the rotor.
When the motor is at standstill condition (at the start), the speed of the motor is zero and hence slip is at maximum. This induces very high emf in the rotor at starting condition and thereby a very high current flows through the rotor.As the rotor needs a high current, winding draws a very high current from the supply. This initial drawing current can be of the order of 5-8 times the full load current of the motor.
This huge current at the starting of a motor can damage the motor winding's and also this current can cause a large voltage drop in the line.
These voltage spikes may affect the other appliances connected to the same line. Therefore, a starter is necessary to limit this starting current to avoid damage to the motor as well as to other adjoining equipment.

How to Select Best Starter

Download Product Whiz Application and install your Smart Phone


How to use this Application 
     1. Install this application from above Link
Open your application  and select your motor Rating
Select your motor rating and Click to proceed Switch gear Selection

Select your motor type







Watch video for more details



Sunday 25 June 2017

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How to take 360 Photo

electrical theory and electrical fundementals for all electrical related people . students , engineers, electrician #electricaltheorems,electrical,





The future is 360-degree photos that let you look around in any direction from a single standing position. You can share 360-degree photos everywhere from Facebook to Street View, and unlike 360 video, they can be easily snapped using the phone you’ve already got. Here’s how to get started.


 How to take 360 Photo

          1. Smart Phone
               
              Download Google stree view application from Playstore or Apple store. install the application and open for taking 360 photo

Click the Camera button (Shown the Picture)
Click this Button 


Choose your Mobile Camera for take the 360 picture . Show the below picture
After the click the camera open and ready for taking the 360 photo. choose the yellow round mark and rotate your phone simultaneously to the yellow icon point
Show the picture

     take all picture in both side and upper and down side

Watch this video for How to take 360 photo








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You Tube Go application

electrical theory and electrical fundementals for all electrical related people . students , engineers, electrician #electricaltheorems,electrical,

Google has announced YouTube Go, a new app designed to broaden the accessibility of the behemoth video-sharing service. Designed and developed with Indian users in mind, who will be able to test the app first before a broader rollout, YouTube Go is intended to work more effectively in areas where connectivity is more limited.

YouTube Go allows users to save videos for offline viewing, giving options over quality and file size so it's clear how much data a download will use. The app also allows for local sharing with nearby users without using any data. YouTube Go builds upon the Smart Offline feature that YouTube launched first in India earlier this year.
YouTube Go is a brand new app to help the next generation of users share and enjoy videos," YouTube product management VP Johanna Wright says in a statement. "YouTube Go was designed and built from the ground up with insights from India, in order to bring the power of video to mobile users in a way that is more conscious of their data and connectivity, while still being locally relevant and social.

How to use YouTube Go Application


Watch This video


Friday 23 June 2017

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CORTANA NOW ON ANDROID PHONE

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CORTANA NOW ON ANDROID


Cortana is designed to help you get things done. Ready on day one to provide answers and complete basic tasks, Cortana learns over time to become more useful every day. Count on Cortana to stay on top of reminders and work across your devices.




Friday 26 May 2017

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360 Video Metadata Tool

electrical theory and electrical fundementals for all electrical related people . students , engineers, electrician #electricaltheorems,electrical,

Download Metadata Tool for create 360 video upload to YouTube


Click Here

          Download

Friday 5 May 2017

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I Ball Pulse BT4 Bluetooth Headset Review and Specification

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I Ball Pulse BT4 Bluetooth Headset Full Review


I Ball BT4 Pulse headset with Mic Full Specification and Details here
I Ball Pulse BT4 Bluetooth headset .It has the following featurs
  • Answer Call,End Call ,Reject Call
  • Redial Last Call
  • Multimedia controls Like Play,Pause,Next Track,Previous track,

FEATURES AND SPECIFICATION

             Features

  • Stereo BT Headset With Mic
  • Experience the pinnacle of Music listening
  • Soft Ear Cushions for log time use
  • Communicate with BT enable Cell Phones or PC wirelessly
  • Built in rechargable battery(Charge through USB)

             Specification

  • Bluetooth Version: V2.1+EDR
  • Bluetooth Profiles: HSP,HFP,A2DP and AVRCP
  • Frequency Range : 20 Hz to 20 KHz
  • Speaker Sensitivity :-42dB+- 3dB
  • Speaker Driver : 4Cm
  • Speaker Impedance : 32 Ohm
  • Effective Range : Up to 10 Meter
  • Working Time :Up to 9 Hours
  • Stand By Time : About 200 Hrs
  • Battery Charging Time : 3 to 4 Hrs
  • Weight : 163 Grams
  • Diemension(H x W x D) : 18 x 15.5 x 7.5 cm

             Controls

  • Power ON /OFF/Call End/Receive/Play/Pause
  • Volume UP/ Next Track
  • Volume Down/Previous Track

PAIRING THE HEADSET WITH BLUETOOTH MOBILE PHONE

               You have to pair the Bluetooth headset with mobile phone before first time use of the headset,Please make sure your mobile phone has Bluetooth function, Specific  pairing procedures may vary with different mobile.Please refer to your mobile phone user manual for further information
The steps are follows

Pairing With Bluetooth Mobile Phone

  • Keep the headset and Bluetooth mobile phone within 1 meter range
  • Make sure that your Headset is OFF
  • Press and Hold Play/Pause until the indicator light flashes Blue and Red alternatley. The headset is now entered into pairing mode
  • Switch ON the Bluetooth function of your phone and search device,After searched ,select I ball Pulse in the Bluetooth device list

Friday 24 March 2017

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electrical theory and electrical fundementals for all electrical related people . students , engineers, electrician #electricaltheorems,electrical,

HOW TO MAKE LED DRIVER


This Article for how to make a simple led driver circuit for Serial light or another led light. This driver making some simple step and simple circuit using one 474J 400 Volt capacitor, One 100 Ohm resistor and 4 nos of Diode. 

   Proceedure

  1.            Make Bridge rectifier using Diode
  2.            Connect Capacitor and Resistor


Circuit Diagram


More Details View this video and Subscribe this YouTube Channel or Follow This Blog


Thursday 23 March 2017

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How to make LED Driver

electrical theory and electrical fundementals for all electrical related people . students , engineers, electrician #electricaltheorems,electrical,

https://youtu.be/RpKRkDEhkX0

Sunday 19 March 2017

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UPS WIRING DIAGRAM FOR HOME

electrical theory and electrical fundementals for all electrical related people . students , engineers, electrician #electricaltheorems,electrical,

UPS WIRING DIAGRAM FOR HOME



Friday 17 March 2017

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STANDARD OPERATING PROCEDURE FOR TRANSFORMER SERVICING (SOP)

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STANDARD OPERATING PROCEDURE FOR TRANSFORMER SERVICING (SOP)









RECORD OF REVISION:
1        Nil
           
REASON FOR ISSUE:
1        To have proper consistency and instructions / procedures in place for Transformer.

1.                                          PURPOSE:
1.1                   To describe a procedure for the maintenance of Transformer Oil servicing
                                                           
2.                                          SCOPE:
2.1                   This procedure is applicable for the maintenance of all the Transformers at -------(Location)

3.                     REFERENCE:
3.1.1                                Utilities Monitoring

3.2.                        Other SOPs having reference to this SOP.
3.2.1                                LOTO

4.                                 DEFINITION:
  4.1                   Nil

 5           KEY ROLES & RESPONSIBILITIES:            
Business Role
Key Responsibilities
 Head
To ensure adequate facilities, system and personnel are available to carry out this process
Head of the Department
To ensure that procedures are in place to carry out requirement of the process. To ensure adequate drawings / manuals, materials / spares & labors’ are available to carry out this process
Supervisor/Engineer
Responsible for supervising / carrying out the preventive maintenance check sheet / flow chart / sequential steps to ensure proper completion of the task. Ensure that the Safety Work Permit System is followed & monitored closely.
Contractor / Associate
Ensure to follow the work permit system along with conducting the daily tool box talks with the team and ensure proper usage of PPE. Responsible for carrying out the preventive maintenance work. Also, timely follow the instructions as given by the Supervisor in charge pertaining to the work.
6.      PROCEDURE:
6.1  Process Overview:

6.1.1                                The Transformer is main part of Electrical substation.

6.1.2                                There are total of 2 Transformers’ at Substation . They are of different capacities based on the rating if the equipment’s connected to the circuit.

 6.1.3                                Transformer Capacity Table
    
Sl No.
Description
Make
Quantity
1
----- KVA
----
1
2
1000 KVA
-----
1








6.1        Sequence:

·         Take Transformer oil sample and check BDV value through external agency.
  • The BDV Value is below 55KV, Take the quotation from external agency for Transformer Oil servicing.
  • Issue the work order to external agency for Transformer Oil servicing.
  • Planned date and time inform to external agency.
  • Arrange Power supply for Transformer Oil service filter Unit
  • Switch off  Transformer incomer supply from VCB Panel
  • Take the sample oil and check the BDV value before servicing
  • Start the Oil filtration
  • After Filtration check and confirm the BDV Value of Transformer is above 55 KV
  • Check the Oil level in Transformer, Fill the new Oil if Required
  • After Oil filtration Switch ON the transformer, ensure the temperature is low
  • After servicing collect the Bill and prepare Work completion note and given to accounts for Payment
  • Collect the Transformer service report
  • Notice the BDV value and Due date in near Transformer
  • This process once in a year
6.3.1        All the activities are done manually.
7.            DOCUMENTATION
7.1              Keep the service report at Substation and Notice the BDV value and Due date in near Transformer
8.                  PPE:
8.1              Electrical Hand gloves, Safety shoes, Barricading (by masking tape) of the job, Fire extinguishers (CO2 Type / Sand buckets)
9.                  Tools/ equipment’s required:
9.1              Insulated Spanner, Tester, Screw Driver,
10.              IMPACT IN CASE OF DEVIATION:
10.1          Damage to equipment
10.2          Personnel safety
11.              CORRECTIVE ACTION IN CASE OF DEVIATION:
11.1     Training and awareness should be given to the staff handling.
12.              STAKE HOLDERS
12.1.1    Electrical Department
13    EMERGENCY CONTACT NO’s
Sl no
Designation/ Name/Dept.
Contact number
Remarks
1



3



4



5
Emergency intercom number –


6
First Aid number
100




                      DOWNLOAD THIS SOP