electric

मोटार  अभ्यासणे                                                                                                                                         

                         मोटार खोलताना लागणारे

     टूल्स :-         १. टेस्टर २. स्पॅनर ३. हॅमर ४. लाकडी ठोकला ५. मल्टिमीट

 * मोटारचे पार्ट :- १. बेरिंग २. कॅप्यासीटर ३. बेरिंग कॅप ४. रोटर ५. फॅन ६. कोइल ७. स्लॉट

                             ८. कव्हर बॉडी ९. बुश १०. कनेक्शन प्लेट ११. इम्पेलर १२. फूटबॉल

  * १ एच पी मोटर खोलली :- 

 आलेली अडचन :- मोटारचा इम्पेलर घासत होता. पाणी लिक होत                                                                        होते. 

केलेले उपाय :- इम्पेलर ला रबरी प्याकिंग टाकली. त्यामुळे पाणी लिक होण्

   









  Electrical                                                                                                                               Siphon Motor Parts 

[1]:-Coil

[2]:-Roatar

[3]:-Bush bajling

[4]:-Empalas

[5]:-Capacitor

   Sr.no   matwalu       rate             cont            tolal

    [1]:-    buttan         15                    1              15

     

 Electrica                                                                                                                                                                                                                                                                        Starter                                                                                                                                                                                  
  *    We  leatnt about a sfarter  

* A stafer is a mechanical or an antomatic  derice  which helps the  motor  start

* A starter uses a on volt  coil to create a magnetic  field and join  the contactors  

* A sfartors has :-(1)   contocfors  thermcd control switeh piunger

* plunges :-  Contains a no volt coil when given a current becomel a mageet and joins  the contacteri rogether

* Contacters :- Pices of copper  which connect to the main supply

* Thermal contail switch :-Contains a bi-metal strip which on reaching a desired  current  bends   and disconnects from the maj supply.

*A  motor starter uses 2 phases to work

                           
           Electcal 

           

  *   Pipc type earthing :- 500mm × 500mm×10mm in the mid of mixture 

       *   200 V .A .C 50 H2   0.V 

               

              *Factorc affecting on eath resistivity :- 

          

         (1) Soil resistivity dissolved 

        

         (2) Soil condition :- poor conductors  (  ) soil resistiviy value will be very night

           

         (3)  Dissoived  salts :-80.1 common sait is most effective in  improving condctivity of soil  

        

        (4)Climate conditian :- 4-150 ohm - meter the same my be 

       

    (1)  Motor   Lakshml  Inductlon

Frume  -1005, Kw-1.1 , Hp-1.5 ,Rpm-1440, Cscr-Class  B Lnsul  ,Duty 51 ,230 v ,  HP-1, 8.5 A, 50- Hz,        Ref No Amb 40 degree C ,[max] ,Start capacilor  -120\150  uf ,230 v,

Run capacilor -25 ps,  440 mofor

                                                                                            [2]  Abc   Wab Ding

Sr no-.........

Mfg year -2002

le put  amps -28

Supply  volts -380\440

Frequency -50

Phase-3

Kva-20

Class of  ins  -4

Bef to lss -4558

Max  hand weld  amps -400

Max  cont  automatic  weloing   rmps

O.C.V. -75185

Cooling -Force

Tare  wt -200 Kg

 [3] Anmol  Indvction  motor :-

Hp:-1 .Ac:-3.Ph:-50Hz  Cont Rated. Kw:-0.75 .Rpm:-1440 .Conn:-y.  Amps:-2.Erame:-80

Lnsul:-class[B]  .Sr.No:-11.11

Mfg .By.Anmol  motor  [India]

[4] Hl fine Quality Product  [Bench Grinder]:-

         Hp:-0.5 .  Voits:-230 . Kw:-0.37.  Rmp:-2800.

Amps:-4.  Insucl:-A.  Phase:-1.  Hz:-50. Sr.  No:-810

Hifin  Machme  Fools  [Gujarat]

   Tubelight

* Aim :-   
                Working and connection of tubelight and                               trouloieshooting methods               

 * Tools :-  
                 Tester,Series , testing lamp , pliers , wire stripper

* Materials :- 
                      Wirescis sqmm , insulatien tape , ballast ,                                 ,starter,tube holder 

 *  Procedure :-
                       We brought a tubelight  w`hich was not                                    working, We tested the supply wires of the                            Tubelight ,     We Testedthe tube using a series                        lamp, We checked the connections  referring from                        acirclit diagram , We Troubleshooted the tube ,starter                        and ballast .

* Observation :-
                     (1) We checked the Tubelight,s  tube  first it                                            successfully  passed the Trouloleshooting  test .

                     (2)Secondly we checked the starter, it was also                                        working in a good condition.

                 (3)Thirdly we checked the ballast which was also                       working.

* Conclusion:- 
                     After 1 hour of work we concluded that the                               problem was with fanlty witrin

 D. O .L.  Starter

* Aim:-  
              Working and Connection of a Motor Starter

* Tools :-
               Tester, Series Lamp.

* Materials:- Wires.

* Procedure :- (1) We took a mechanical starter from the                                   arfificiai pond.

                        (2) We opened it and separated the parts and                                   stadied them carefudly .

                       (3) We brushed  the contactors as a carbon                                        residue forms a fter long times of use .

                      (4) We saw the thermal relay that contains a                                  bi-metal Sfrip.

* Observation:- 
                           While testing the no-volt coil we saw that                            when we passed the current through the no-                             volt coil the coil turned into on                                                Electromagnet.

*Conclusion :-
                         We also concluded that we can use a MCB                             instead of a Motor Starter.

       

           Motor   Rwinding 

Aim :-
            Motor Rwinding

Tools :-
            wire cutter , spanner, screwdriver

Materials :-
                        Copper wire, Cotton Thread , Varnish , PVC Paper ,Capacitor,Screw Connectors Sleeves (1mm and 3mm)

Procedure :-  1 Hp Motor

        
     (1) We Disassembled the motor                                  according to the earlier motor practical                (2) The important earlier motor practica             (3) The  Taul was the coil was                                     Shatcriate                                             

* Observation :-

                             (1)  while filling the coil we should fill it in any same direction otherwise the coil will not work      

(2) While fillng the coil there should be no damage  or any type of pressure on it doing that will damage the coil and you will have to Rewird the motor again .

 * Conelusion :- 
                              If the coil gets short circuited at any point you will have to rewind it again

  Fab Lab 

*1/8/2017

Today was our first FAB LAB.

So sir explained us about Fab Lab

A Fab Lab has lots of prototyping machines

1. Laser Cutter

2. Radium Cutter

3. Milling Machine

4. 3D Printer

How to work on it and handle the machine properly.

Sir were explaining us about the machines that they are very costly so use it really carefully.

We made a Pen Stand using a Laser Cutter.                                                                                    

*8/8/2017

Sir explained us about how a Radium Cutter works how to operate it through the software named "Fab" and how to make manual adjustments.

the software runs on an operating system named "Ubuntu".

Open Terminal --type "sudo fab"

type in the current account's password

then choose "mesh (.stl)"

then choose machine name as "Roland Vinyl Cutter (.rml)"

click make_stl_rml

click load .stl

then select your .stl file and click load or open

click make .png

choose your finish

click make.rml

then click Send It! to start your job.

*22/8/2017

Today we made Ganpati Decoration.

So we started looking for new designs and then started the work.

We used Laser Cutter while cutting the decoration on MDF sheets.

So after lots of hard work our decoration was ready.

The first model was bought by Kulkarni Sir for Rs.250

We learnt about the Laser Cutter more in depth.

*29/08/2017

Sir explained us about Arduino  and how it works.

To do the programming we need the Arduino IDE application.

The application's base language is C and C++.
GND=Neutral                               Negative (-)

Which we declared in our program - positive( + )

Firstly we open the software

then we opened tools

select the board

select the port (COM ports are used for Arduino)

file eg.

Blink Program

So we learnt how to program anArduino

We did a basic Signal from an Arduino.

*12/09/2017

We were making a Magic Lantern which will start rotating when an obstacle comes near it.

Units=mm

Dimensions = 130*115*65

Material Thickness =2.5

Our Section was divided in two groups:-

Designing ( Fab Lab )

Arduino ( Fab Lab )

We were designing our design in Inkscape Software.

Then when the design was ready we went near the Laser Cutter to cut our design.

We cut a box , the box contained a motor, Arduino, Obstacle Sensor.

So we will complete the Lantern when we have our next lecture.

*03/10/2017

We were making an automatic  LDR Circuit.

Materials:-

1. 12V Relay

2. LDR

3. 1K Resistor

4. 10K Potentiometer

5. Patti Wire

6. 13C547 Transistor

The materials we need to use later.

The important part is that you should do proper soldering otherwise  it would be called Dry Solder.

Some components have polarity.

So the LDR circuit was working properly.

So today our lantern started working with no issues.Today was our first FAB LAB.

So sir explained us about Fab Lab

A Fab Lab has lots of prototyping machines

1. Laser Cutter

2. Radium Cutter

3. Milling Machine

4. 3D Printer

How to work on it and handle the machine properly.

Sir were explaining us about the machines that they are very costly so use it really carefully.

We made a Pen Stand using a Laser Cutter.

The material we used was Acrylic.

Now we know what is a Laser Cutter is and how it works.

*8/8/2017

Sir explained us about how a Radium Cutter works how to operate it through the software named "Fab" and how to make manual adjustments.

the software runs on an operating system named "Ubuntu".

Open Terminal --type "sudo fab"

type in the current account's password

then choose "mesh (.stl)"

then choose machine name as "Roland Vinyl Cutter (.rml)"

click make_stl_rml

click load .stl

then select your .stl file and click load or open

click make .png

choose your finish

click make.rml

then click Send It! to start your job.

*22/8/2017

Today we made Ganpati Decoration.

So we started looking for new designs and then started the work.

We used Laser Cutter while cutting the decoration on MDF sheets.

So after lots of hard work our decoration was ready.

The first model was bought by Kulkarni Sir for Rs.250

We learnt about the Laser Cutter more in depth.

*29/08/2017

Sir explained us about Arduino  and how it works.

To do the programming we need the Arduino IDE application.

The application's base language is C and C++.
GND=Neutral                               Negative (-)

Which we declared in our program - positive( + )

Firstly we open the software

then we opened tools

select the board

select the port (COM ports are used for Arduino)

file eg.

Blink Program

So we learnt how to program anArduino

We did a basic Signal from an Arduino.

*12/09/2017

We were making a Magic Lantern which will start rotating when an obstacle comes near it.

Units=mm

Dimensions = 130*115*65

Material Thickness =2.5

Our Section was divided in two groups:-

Designing ( Fab Lab )

Arduino ( Fab Lab )

We were designing our design in Inkscape Software.

Then when the design was ready we went near the Laser Cutter to cut our design.

We cut a box , the box contained a motor, Arduino, Obstacle Sensor.

So we will complete the Lantern when we have our next lecture.

*03/10/2017

We were making an automatic  LDR Circuit.

Materials:-

1. 12V Relay

2. LDR

3. 1K Resistor

4. 10K Potentiometer

5. Patti Wire

Open terminal - sudo fab - password - diylab - 1

Type - PNG - Image
Process - Poland viyl cutter
Make pro to cam
Lead PNG 1 from computer load the image
Default - vinyl paper
Make path
Viem - segment - make cam - lendit
Fate dlte type cutting
pipe type cutting (oi pipe 15mm)
Modela machine
Open terminal - sudo fab - password - diylab - 1
Type - 541
Process - Roland Modela
Make ltl 1 from computer load the image
Default + select mill bit - 18
Make PNG make path
View - segment make rtn L -sendit
Today our fablab leave way thone.
So sir has explain about fablab.
What is fablab ?
And different machine in fablab
1.Lazor cutter
2.3D printer
How to work on it and hanfle the machines in fablab sir was explaining more time that the machines are to costly so use it with proper managment.
Project should be nice and proper.
The ovx computer section was there,
Foe eg :- 1He done pen stand on laencotton.
So we fill up our ploge and using some time facebook also.
So light was not coming in the campus.
So we thought joint fault must be there and we were checking so joit was repaired.
So we find the fault that meter wire was loose and short yoo single mistake first phase light was not there.
So we deaded the design and stanted the work
We use lazzor cutter during making ganapati decoration
So we succesfully made the ganapati decoration with mass sheet
Second was computer case so we updated the blog and some information about.
GND - neutral - negative(-)
Klchwe ddueed in programmer - Positive(+)
First we open te sottane
Then we Open tools
Selected the bound
Selected the povt/means we have select.
File - eg.
We have done laaum how to work on arduino and what is arduino
We have done small work on arduino of roddbon signal

DDR fablab -  section was there over responsibilty was to make ganapati decoration of festival.

1. This circuit based project explains the principle of operation of LDR (light dependence resistor). The circuit has various applications like shadow alarm, automatic night/morning lamp. 

   As the name suggests, LDR is a type of resistor whose working depends upon only on the light falling on it. The resistor behaves as per amount of light and its output directly varies with it. In general, LDR resistance is minimum (ideally zero) when it receives maximum amount of light and goes to maximum (ideally infinite) when there is no light falling on it.

   A critical factor that decides LDR’s working is the frequency of light which should cross a threshold value so as to make LDR respond. Keep on reading to find out how the circuit is designed and how it is made to work.

   
   

   
   

   LDR, an acronym for light dependent resistor is a resistor whose resistance is dependent on light. In this project, resistance of LDR is of the order of Mega Ohms in the absence of light and reduces to a few ohms in presence of light. In this circuit when the light falls on LDR, the resistance of LDR becomes low and the entire voltage drop takes place across the variable resistance VR1 (10K). As a result the base of transistor (T1) gets high input and it gets biased thereby glowing the LED. When no light falls on LDR, the resistance of LDR becomes high so almost entire voltage drop takes place across it and the base of transistor is at low potential. So transistor does not gets biased nor it becomes conducting, hence switching off the LED. The sensitivity of the circuit can be adjusted by varying the preset VR1.

   
   

   Circuit Diagram: 

   

   307,801-Reads	Transistor BC547 BC547 is an NPN bi-polar junction transistor. A transistor, stands for transfer of...
   91,772-Reads	Preset A preset is a three legged electronic component which can be made to offer varying resistance in a circuit. The resistance is varied by...
   64,476-Reads	LDR An LDR (Light dependent resistor), as its name suggests, offers resistance in response to the ambient light. The resistance decreases as the intensity of incident light increases, and vice versa. In the absence of light, LDR exhibits a resistance of the order of mega-ohms which decreases to few...
   56,190-Reads	LED Light emitting diodes...
   44,834-Reads	Resistor Resistor is a passive component used to control current in a circuit. Its resistance is given by the ratio of voltage applied across its terminals to the current passing through it. Thus a particular value of resistor, for fixed voltage, limits the current through it. They are omnipresent in...