DC MACHINES - LECTURE 03 : PROBLEMS ON DC GENERATOR

[@pavankumarenugula5637]

Thank you mam 😍😍😍lectures are very useful

[@karthickkuduva9819]

Even my teacher never explained like this I'm struggling in this sub your video are the solution 🔥

[@renitapinto5487]

Thanks a lot

[@rounakdutta3254]

This lecture will be very helpfull for my first semester in Jadavpur University tomorrow 🙃✨

[@renitapinto5487]

Glad to hear that

[@kahmanijairaj2859]

it was very helpful and thank u from Malaysia

[@renitapinto5487]

🙏

[@toha5114]

Good continue it.

[@renitapinto5487]

Thanks

[@sujitshrestha3724]

Thank you!

[@saravananrajendiran1766]

Nice

[@manojjana8860]

thanks you so much...

[@favourchinyere4943]

Thank you madam, you made it so easily. please am confused on the brush drop, it is 1 volt but you multiplied it by 2.

[@renitapinto5487]

For two brushes.

[@madhujatothu3485]

Taking two brushes because armature have two brushes so we take as two brushes....

[@imranahmedqureshi9831]

@@renitapinto5487 the number of brushes in the DC machine equal to the number of parallel paths. For lap winding numbers of the parallel path are equal to the total number of poles. Therefore, the number of brushes is equal to the total of number poles. Brushes = 4 not 2

[@imranahmedqureshi9831]

@@madhujatothu3485 the number of brushes in the DC machine equal to the number of parallel paths. For lap winding numbers of the parallel path are equal to the total number of poles. Therefore, the number of brushes is equal to the total of number poles. Brushes = 4 not 2

[@messiisthebest]

@@imranahmedqureshi9831 yes you are right

[@balajidandvate8185]

1000 foot distance 2.5 inch pipe 5 hp motor Water out put in liter/ minutes

[@Familyserialdrama]

Thank a lot mam for this . It helps me a lot cause my minor held tomorrow❤️.

[@nelsonkipkemboi3896]

A 110v dc series motor when taking 50A, runs at a speed of 300rpm.The armature resistance is 0.15ohm and there are four field coils, each of 0.01ohm parallel groups of two coils in series and load torque is doubled. Assuming that the magnetic field is unsaturated , determine; 1.armature current 2.speed of motor

[@debangshubhattacharjee7062]

A 25 HP, 240V, 1000 rpm, 4 pole DC shunt motor has 1000 conductors arranged in 2 parallel paths. The armature circuit resistance is 0.3 ohm, field current and line current are 2A and 100A respectively. Calculate  Flux/pole  Torque developed  Rotational losses  Total losses expressing as a percentage of power

[@harsha-di6jv]

Thank you 👍👍

[@harrynorbert2005]

In 7th question how did you assueme Vb = 2x1 = 2Volts??

[@williamjose1769]

Mustn't the speed be in rads/seconds to get consistent units

[@Gyan20009]

Welcome madam

[@sashinidissanayaka7765]

Than you so much❤️

[@handymansflier6335]

How to use calculator to get flux

[@yaswanthkumar1075]

In 1st problem.where you can get that A=2 for wave connected

[@yongjrshaloba5144]

I'm wondering the same...since its in lap A=P

[@renitapinto5487]

Lap winding and wave winding connections are entirely different. If you look into the figure of lap winding and wave winding you can understand the clear difference. so generally we take lap winding A = P and for wave winding A=2

[@manishk88]

Thanks 😊❤️ ma'am

[@TOP10-q8g]

please check the last question.In lap winding number of poles=number of brush....since there are 4 poles so voltage drop must be 4*1=4 but you have written 2*1=2.How did that happen ?

[@Flower-m8r]

There are 2 brushes ..Contact drop is to be find out ..In the question contact drop per brush is already given as 1..So total contact drop= 2 × 1= 2

[@imranahmedqureshi9831]

@@Flower-m8r the number of brushes in the DC machine equal to the number of parallel paths. For lap winding numbers of the parallel path are equal to the total number of poles. Therefore, the number of brushes is equal to the total of number poles. Brushes = 4 not 2

[@imranahmedqureshi9831]

you are right

[@haneefferosias4369]

Thank you so much 💖

[@renitapinto5487]

Welcome 😊

[@navaladi5221]

Hi, I have rewinded 1MWatt Sandford alternator, during startup the stator winding get firing in particular slot and again we will replace the demaged coils again getting fired during installation at same slot. Can I know the what is reason for this issue

[@onefineday1333]

Tq so much sister

[@renitapinto5487]

Welcome 😊

[@supriyo3147]

Thank you mam

[@renitapinto5487]

Welcome

[@asishmallick3830]

you form odisha?

[@sumitchoudhary7180]

Mam 2nd question answer tareke se nilka h mera kuch alg ara h

[@aleenafatima5399]

can you provide its pdf in the description pls?

[@Dropskingcro]

Aap ac moter par video banaiye na plz

[@abdulhoque7040]

Thans a lot

[@gesther30]

Mam subtitles are disturbing plz remove that,data and solution is not appearing

[@ANIRUDDHACHARYAJEE]

Mam your name is gajab hai

[@sonofjeff7902]

Its 220v

[@birendrajoshiofficial5735]

i think - This video a furmula is wrong - (Eb=v*IaRa)...the right furmula is Eb=V-IaRa

[@rajuahammed5802]

Eb=?

[@anitadesai4735]

Maam plz hindi me bnaye na thoda jyada comfert. Hote h hindi me plz maam

[@ANIRUDDHACHARYAJEE]

Hindi language

[@sumernath7884]

Mem hindi

[@madhumitabhunia994]

Thank you so much mam🙏❤️

[@renitapinto5487]

Most welcome 😊