Direct online starter #DOL #switchgear# rating # selection learn in details . click on below link for estimation sheet preparation. • How to make estimation... . Thanks Thanks Thanks for watching this video.
Пікірлер: 100
@marcheck34008 ай бұрын
Thank you, this is a good one. A lot of tutorials forgot to include consideration of MCB trip curve characteristic in their calculation. In practice I prefer to be a bit more detailed with the trip curve calculation, but for learning this is good enough.
@gitanjaliatugade86002 жыл бұрын
Nice..info for beginners..ty mam🙏💐☺️
@VijaySharma-hj9kg Жыл бұрын
You have Given This Information Very Well
@waqar1ist2 жыл бұрын
Amazing explaination Mam
@YogeshKumar-vg5jz2 жыл бұрын
Madam, your channel is right on point what electrician, engineers, and technician need
@iie4237 Жыл бұрын
informative ❤
@prahladrajak24013 күн бұрын
Very nice thank you
@mubeengujjar11527 ай бұрын
Thanks for this co-operation
@baskaravenkatesh44442 жыл бұрын
Excellent 👌👌👌
@dineshpadmane81122 жыл бұрын
Very well explained ma'am
@rajeshsaket910 Жыл бұрын
Thanks sister for waching video
@prathapmv27772 жыл бұрын
Nice sister 👍, from Kerala.
@chiragchaudhari5031 Жыл бұрын
very helpful for interview
@mithunsarker50903 ай бұрын
Good information... Thanks....
@annurchoudhary7869 ай бұрын
Very good video mam🎉🎉
@ankitpatel9429 Жыл бұрын
Madam ji your video very useful Please continue electrical technician or Eng. Work video uploaded
@snehachandran5947 Жыл бұрын
Thankyou..... Very usefull
@farhanshaikh61033 жыл бұрын
Nice ma'am
@ramprakashkushwaha56612 жыл бұрын
Thanku ma'am and switchgears control panel study in ee and eee .
@durgavenkata68912 жыл бұрын
Excellent madam. Amps keliye mera formula Hp*1.34, example 10hp ka motar 10*1.34=13.4Amps isa calculate karta
@iamre-volve Жыл бұрын
Very nice
@udaygurav61132 жыл бұрын
👍💐
@r.d.2452 жыл бұрын
💐👍👌
@iie42373 жыл бұрын
very nixe video
@aishap22862 жыл бұрын
Thank mam
@uzzalchakma97833 жыл бұрын
♥♥♥♥♥
@sandippatil776 Жыл бұрын
for MCB rating selection why we divide by 5 to starting FLC?
@pathakbrakeskumar7227 Жыл бұрын
Tq👌👌👌👌👏👏👏
@anoop22march3 жыл бұрын
Thank you mam, waiting for more video
@juhisharma4444 жыл бұрын
What a beautiful explanation.... waiting for your next vedio regarding single line diagram
@electricaldesignestimation50014 жыл бұрын
Yes ...I will upload soon on that ....
@juhisharma4444 жыл бұрын
@@electricaldesignestimation5001 thanks
@md.faridullah61373 жыл бұрын
@@electricaldesignestimation5001 Please, Calculate FLC considering motor Efficiency.
@motivationmeditationrelaxa66753 жыл бұрын
Thank you sister good explanation 🙂☺️
@mahidarling86023 жыл бұрын
Nicely explained madam...these concepts are very useful to me ...why bcz i started electrical panel board manufacturing company ...so i request u to share ur full knowledge to me madam...tq....
@MukeshSingh-zw5qx3 жыл бұрын
Very nice explanation..thanks
@MukeshKumar-ed9gg Жыл бұрын
❤❤❤tq mam
@amitensinghАй бұрын
55 kw motor k liye agar 2 se multiply karnge to 110 amp aayega but flc-96 amp hai fir kaise calculate kare
@sefatullah4413 жыл бұрын
please upload more videos
@venubonthu88393 жыл бұрын
Thank you. explanation is good
@MrSai273 жыл бұрын
Make more videos for mcc panels🙏
@vipinthampy4669 Жыл бұрын
Please explain cable sizealso taking7.5 kw as example
@Ramjan-ali7355 ай бұрын
From dubai see
@vaghadiyaraj23699 Жыл бұрын
Type 2 coordination chart according kiya ji hai na
@ranjithp60873 жыл бұрын
Very nice explanation thanks
@ranjithp60873 жыл бұрын
Mam,when motor starting time the inrush high current directly passing through the mcb and contactor.so mcb is selected higher rating,why contactor is selected same to the FLC.what is the reason?
@neetuyadav6253 Жыл бұрын
Aap MPCB or MCCB se selection batao
@jayeshprajapati3607 Жыл бұрын
Medam aap ye vali video continue karte huve SFU SELECTION OR MPCB KA SELECTION KESE KARNA HE VO BATAYE
@rahulingale43863 жыл бұрын
Good knowledge sharing for interview
@muhammadshehbazaslam45493 жыл бұрын
Dear Madam, You have selected MCB 26A, OLR around 16A...that's fine... But you said in DOL, motor always draws higher current at start, (130A according to video). So that point is that how motor will continue to run even starting current is higher than MCB, OLR rating? There will be no tripping? Why? Because at start current will be higher than OLR, as well as MCB rating... Please clear this point, thanks
@emmittdariel46132 жыл бұрын
instaBlaster...
@imransaifilaathi87592 жыл бұрын
In short! Motor ka starting current initially high hota kuch mili seconds k liye(nearly 2 3 cycles me). Uske baad motor apni steady condition me a jaati h. Us initial time me high current bear krne k liye hi hum c Type mcb lete hain. For further detail Ap ek baar b,c and d curve MCB k characteristics study ke lo.
@marcheck34008 ай бұрын
Understand that this is an old question, but commenting anyway in case somebody else needs this info. In general application, there are 2 types of overcurrent detection: Thermal, and magnetic. Thermal tripping uses a bimetalic strip that, during current overload, heats up and bends. The bending triggers the trip mechanism. The heating process takes time, and this introduces a time delay into the tripping action. The higher the overload current, the shorter the tripping time, which is why this is sometimes called a "inverse time" type circuit breaker. Magnetic tripping depends on the magnetic field strength generated by the current flowing through the circuit breaker. During overload the magnetic field is much stronger than usual, and this immediately triggers the trip mechanism. There is no time delay because change in magnetic field is immediate. This is also sometimes called "instantanous tripping". Overload Relay (low to medium spec models) exclusively uses thermal tripping system. This is why, in certain countries like mine, overload relays are more commonly called Thermal Relay. MCB uses both thermal and magnetic tripping system. The faceplate rating is usually the thermal tripping threshold, while the magnetic tripping threshold is set much higher, 3x, 5x, 10x the faceplace value depending on the MCB trip curve spec (B, C, D etc). During motor starting, when the current draw is very high, Overload Relay does't trip (yet) because the motor starting process is usually shorter than the bimetallic strip heat up time. However if the motor seizes up during starting and the high current draw is sustained, the Overload Relay bimetallic strip will heat up substaintially and trips. The downside to this is, if there is a short circuit, it will take some time to trip, so your wires can get heated up quite substaintially and there can be a risk of fire. The case with MCB is a bit compilcated because it uses both thermal and magnetic tripping. The delayed thermal tripping characteristic you see in Overload Relay is also present in MCB, so during normal motor starting it will not trip (yet), and if the motor siezes it will also eventually trip. But, once the magnetic tripping threshold is reached, the MCB will no longer use thermal tripping (which is slow) and uses magnetic tripping instead (fast). This eliminats the problem you see in Overload Relay during short circuit situation, but, as I am sure you had experience at least once in your life, MCB can be annoyingly sensitive. Proper MCB sizing therefore is a more involved process.
@indrak14636 ай бұрын
Nice @@marcheck3400
@HariHari-jr5pg3 жыл бұрын
THANK YOU. PLEASE GIVE DETAIL FOR SIZING OF SPARES TO AUTO TRANSFORMER STARTER & SIZING OF IN& OUT CABLES FOR ALL CONTROL PANELS
@HariHari-jr5pg2 жыл бұрын
PLEASE MENTION THE SIZING OF CONTACT OR IN TRMS OF FLC*MULTIPLIER SUPPLY CABLE IN/OUT TO STARTE =FLC*MULTIPLIER MAIN CIRCUIT WIRES IN STARTER=FLC*MULTIPLIER.
@37prakhar2 жыл бұрын
Cut to cut clear
@rajuakkineni5966 Жыл бұрын
madam industrial equipment vfd's transformers's vcb sf6 breakers oprating system to explaned
@dulalhossain51273 жыл бұрын
Nice video
@dheeranstudiotamil47772 жыл бұрын
I love u.pls reply
@ankitpatel9429 Жыл бұрын
MCB Selection me 130/5 5 kya hai
@Bindukirasoiandvlogs4 жыл бұрын
wow
@hanif15082 жыл бұрын
735.5
@feresticquilorkalaivanan33833 жыл бұрын
Thank u madam thanks
@druganahak91303 жыл бұрын
Good
@Hemaldas20242 ай бұрын
√3 keya hai plz batao
@kuldeepraghuwanshi603 жыл бұрын
Like🥀🥀👌👌
@HariHari-jr5pg3 жыл бұрын
I WANT TO KNOW THE SIZING OF SPARES, CONRACTORS, OLR MAIN& CONTROL CIRCUIT WIRES TO ALL DOL, STAR&DELTA,ATS,RRS,VFD&VFD ETC.
@patelkaushik29962 жыл бұрын
13.05/5 esme 5 value kiski he
@patelkaushik29962 жыл бұрын
13.05×10 esme 10 value kiski he
@stalinsubbiah32387 ай бұрын
Why we have to multiply by ten then divide by five
@rashidmomin842910 ай бұрын
Why you decide by 5
@Kmlsngh983 жыл бұрын
pls, Ma'M make more video, Please..
@ranjithp60873 жыл бұрын
How to select mccb for starters
@swapnilshiyaniya53063 жыл бұрын
madam ... 1 HP = 0.746 kW
@prasadshigwan10 ай бұрын
Her formulas also same if u check carefully sir For eg 1hp motor means 0.746kw Put in her formula ie HP* 0.746=kw So 1*0.746=0.746kw If 5hp motor then 5*0.746=3.73kw And if u use kw to hp then Kw/0.746=hp 3.73/0.746=5hp
@jitendrakamble4446Ай бұрын
1 HP = 0.746 KW
@mirzasaqib42203 жыл бұрын
Why you devided by 5
@leeladharjaiswal52583 жыл бұрын
Madam j aur k curve v hote h
@krusnendusahu60963 жыл бұрын
Medam cable ka load calculation bataye
@engjamalhussain8233 жыл бұрын
kw * 1.73 =Ifl now upto 50 hp motors we take 2 times the ifl I.. e I*2 =starting current above 50 hp we take 1.5 time I * 1.5 = starting current and select the mcb or Mccb according to the starting current sharjah regulation ..
@hanif15082 жыл бұрын
5 hp not 50
@naveenbe1233 жыл бұрын
No protection for contactor when Shor circuit.....
@aslamalikhan11243 жыл бұрын
Mam 1phase and 3phase load calculation for domestic and commercial ke liye NIKALNA bataiyega mam nice video
@ayyoobkhan66423 жыл бұрын
130/5 for MCB rating clcultion , where u got 5?
@akhtar28303 жыл бұрын
I have also same doubt
@akhtar28303 жыл бұрын
Pls reply mam
@siddharthsorathia54493 жыл бұрын
Bcoz C class mcb 5-10 times higher current carry kar sakta he.matlab 26amp ka mcb lagaya to at starting 5 times higher current carry karlega..kuch micro-sec ke liye hi 5-10 times current flow hoga
@harishdsouza70822 жыл бұрын
@@siddharthsorathia5449 right
@nikhilchavhan24415 ай бұрын
KW To HP ? KW × 1.341 HP To KW ? HP ÷ 1.341
@mirzasaqib42203 жыл бұрын
Why 130 dividing by 5
@aamirsuhail25124 ай бұрын
Never rely FLC on twice of kW, you r giving wrong information
@G-O-P-I3 жыл бұрын
Could you speak in English??? Mam.. I know only English
@subodhsawant71443 жыл бұрын
Your surge current calculation is wrong ..... It's not 10 times .... FLC...
@snkkhan20003 жыл бұрын
why volt is 415. what about phase.if volt is 415. insufficient information,
@sandipkushwaha3038 ай бұрын
Whatsapp grup hai ji
@sandippatil776 Жыл бұрын
for MCB rating selection why we divide by 5 to starting FLC?
@Ayansh-vv9ug Жыл бұрын
Because min will be 5 times so we will devide by 5