ENERGY AND ENVIRONMEANT


.Practical Tube light

Aim: - working and connection of tube
light, and troubleshooting method…
Tools: - Tester, screw driver, series testing lamp…
Material: - 1.50 mm  wire, Insulator tape, Ballast starter, tube holder…
Procedure: - 1) we brought a tube light which not working.
2) we test the supply wire of tube light.
3) we test a tube light using a series lamp.
4) we checked the connection reoffering from a circuit diagram.
5) we trouble shouted the tube light and ballast.
 Observation: - 1) we observe that the tube light was successfully passed the trouble shooting test.
2) secondly we checked the started it was working in a good condition.
3) thirdly we checked the ballast it was working…
Conclusion: - after 1 hour of work we concluded that the problem was with the faulty wiring…

                                                  motor starter



Aim-: working and connection of a motor starter.

Requirements-: Tester, series lamp, copper wires.

Procedure-:

1) We look a mechanical starter from the artificial pond.

2) We opened it separated the parts and studied them carefully.

3)We checked the no of volt coil on the series lamp.

4)We brushed the contractor as a carbon residue forms after long time of use.

5)We saw the thermal relay that contains a bio-metallic strips.

Observation-; while testing the no of volt of coil we saw that when we passed the current through the no of volt coil turned in to electromagnetic.

Conclusion-: We concluded that we can use a mcb instead of a motor starter 

                       Tripod stand 

Aim: Learning about tripod stand.


Requirements:

.Tripod stand
  1. U-shaped petti
  2. Compass
  3. olamba
  4. Ranging rod
  5. Paper
  6. Small nails 
  7. abilate  petti

Procedure:



First we go to the plane surface and we putted the tripod stand in one corner.

Than we fix table on tripod stand next we take u-shaped petti we put at down ward nut bolts at middle and we measure the midpoint of table and we put a paper and at middle, we marked it by nailing at down ward nut bolts.I put volamba to U-shape petti and we put stone at the straight volumba then we take abilate patti measure it at the corner we put ranging rod straightly and we measure it like this and we take the measure rement of that.

Formula :1cm=10cm

               10cm=100cm

              1mm=10mm

then we assembled the line then we see there is no shape then sir told to make triangle in it and we take measurement of all, sir give each one triangle.

Observation:

I measure the measurements that goes wrong, then I recognised my mistake then i calculate correctly
 
                                             JOINT`S


Aim:- exploring different types of wire joint`s 
  
Requirement`s:-plier, stripper and wire.
             
procedure:-we saw different types of joints .

1) Union joint :-the wire are crossed positioned  to make along and twist or bend in each wire at one end of the wire is unrapped and then the other and four or five times around the straight position of each wire are pressed down as close as possible to the straight position of  the wire.

2) Married joint :- The married joints used for joining multi stand cables. The wire re-unstranded and then interlocked with the wire of the other cable and then married (Twist) together finally being soldered.

3) Simple joint :- simple joints used in house wiring and while doing simple wiring work.

4) Britania joint:- The britania joint is a from of electrical joined use for base over head wire where great tight strenght is required the two wire are each tinned and then and each have a short shoulder are then round together with tinned wire before the whole.

5) T joint :- When a T joint is made in singles wire about 2 inches of the main cable are bared the insulating material being treated as before described. The wire are cleaned and about inched of branched is round the main cable and soldered to the extreme end.

Conclusion:-joints are usefull at placed where you can make a strong connection.



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