MOTOR PROTECTION|PROTECTION OF INDUCTION MOTOR|ELECTRICAL TECHNOLOGY AND INDUSTRIAL PRACTICE
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- Опубліковано 10 кві 2019
- In this video we have described the technique of motor protection. Electric induction motor is one of the most common machine used in industries. It faces several adverse conditions during its span of operation. So proper protection against such conditions is a must for trouble free operation of the motor.
#MotorProtection, #Protection, #ElectricalTechnologyAndIndustrialPractice
This could be also used for the following topics.
1. How motor is protected
2. Overload protection of motor.
3. Different motor protection relays
4. How to protect motors
5. Thermal overload protection of motor
6. How to protect induction motors
7. Induction motor protection
8. Protection of induction motor
Please visit our website for more topics.
electricaltechnologyrishi.blo... - Наука та технологія
this guy big up so nice in explaining detailed thanks sir make video on protection relay testing
Thankyou very much, so helpful for struggling students. You litterally save my grades, big thankyou..
Very crisp and clear,, good u have good knowledge keep improving...
very impressive it helps us a lot in doing the above practically in the Gulf.
exellent work thanx bro
Thanks alot for teaching me about sef
Great video.
Your vdo are superb 👌👌👌
Very good. Thanks 🙏🙏🙏🙏🙏
Plz make vdo on motor protection of ht motor with under voltage over voltage, differential protection & also its related relay like abb spam spaj spau type with practical
Thanks a lot..
Nice explanation...
thank you very much for all your efforts and we need more deitailed about any protection of induction motor and how to calculate and setting
Thanks for information will you please make a video on the calculation of the motor protection.
Very Informative Video:)
Super sir
Good Video
Thanks फ़ॉर nice vedio sir transformer प्रोटेक्शन पर भी एक vedio बनाये।
Appreciate your video. Can you cover transfo,generator, line differential protection also
Thanks 🙏
Thankyou bro
Easy to understand pls make video for generator and transformer protection same way of explanation
Very nice explanation. Can you please explain HV motor differential relay connected and the source side power cable circuit. What will the consequence in the differential CT (87)
Thanks 😘😘😘😘😊😊☺️☺️
Nice video sir ..
What is use of negative sequence protection in motor
Thank u very much. your vedio is very much understandable.
Can u make a vedio on motor and transformer protection setting calculation.
I have already uploaded a video on transformer relay co ordination setting. That covers majority of trafo protection.. ref protection setting is already uploaded. Remaining protection is differential, which I shall upload later... I have plant to upload all protection settings. Please stay tuned, and share my videos
Nice
Diff between 50L/R and 50 relay?
Pump well vfd maintaince and motor maintenance one video on that topic
Please make a video on "Motor protection relay Settings"...i.e., what should be the values to be set?
Thank you so much ... Can you make vedio REM601 motor protection relay and it's fuctions.
Please I need a video on how to come up with motor control circuit
Kindly upload some video on generator excitation and on AVR
Please make videos on Vaccum circuit breakers for HT motors and their protection
Instrument type earth fault protection ke bare mein btayein?? How dc current function in that??
Nice explanation kindly make videos on testing of electrical equipments like routine,type and site acceptance tests of (cable,transformer,generator,motors,switchgear mv,lv,hv)
to be very honest i am professionally a design engineer. so i don't have any exposure on testing. however i shall try to collect data so that i can make video....
Can you explain the zero sequence ,positive sequence and negative sequence in context to synchronous machine
please share Generator protection and excitation Vedio also
please make video on GPR calculations
Can you please make a tutorial on ecs system
It's an very knowledgeable .
My request to you that please take a one example of settings acording to motor name plate....
Yes, i have plan for making such video. I have already uploaded setting example for over current and earth fault protection. You can check that. Give me some time. I will upload entire protection system
on according to name plate on DOL starter 100% and on star delta 58% of the full load current.
Really a exposure to industrial experience...Good explanation
Upload some videos on protection of transformers and feeders w.r.t industrial practice as you are doing.
Thank You
Thank you so much... Yes I have plan to update more videos on other machine protection, please stay tuned
Awesome video, Can you please do video for the relays settings calculation for the motors protection such as 27,37,46
Ok I shall try... I am receiving lots of comments, and i shall definitely try to make video on all the topics
ELECTRICAL TECHNOLOGY and INDUSTRIAL PRACTICE Much appreciated, I'd like to get you advise, I can find a lot of materials giving the principles, but practically when I hardly can find any book or reference explaining the calculations or the design steps. any recommendation for a book shows the calculations in details.
please make video for big motor protection for 6.6 kV avobe rating 1 MW
Please make on co ordination
Pls explain motor hot and cold curve
Can you please explain it with a motor example how the different protection setting are done.
See my latest video. You will get some idea.
,,👍👍👍
Please upload the protection relay settings of LT induction motor beyond 70 KW
these motors are protected as per type 2 co ordination. basically it has mccb, with on off contactor and a bimetallic thermal over load relay. mccb gives Protection against sc and e/f fault, bimetallic o/l relay gives Protection against over load. contactor is used for on off the motor... ratings of these are dependent upon the motor rating and it is available in type 2 co ordination chart. you can find it on internet. manufacturer gives the chart
If we put 50 , it is instantaneous , but the starting current will be 6 to 7 times of the rated current , so it will trip , ??
Explain about fault current limitation by using series transformer
There is a video.. purpose of lighting transformer
Sir, I have a L&T MK1 asd starter connected with 15hp 3ph induction motor. so how can be protected on lock rotor condition?
15 hp is very small motor. I guess the motor has mccb, and bi metallic thermal overload relay as per type 2 co ordination.
So it such case locked rotor protection shall be either by mccb as short circuit or bi metallic over load relay. For such small motor locked rotor is not a big deal.
You have used so much abbreviation. It took me a long time to understand you have LnT make automatic star delta starter!!!!. Ne way i hope you got your answer.... keep loving...
Thank you .
But what about the differential relay 87 M .one CT before motor and the other after motor where install it
At motor terminal box. The other one at switchgear panel
@@electricaltechnologyandind5335 thank you very much
Sir u said under voltage relay-27 draws more current so over current relay is enough no y we r using another relay for it.
Not over current but overload relay. Those are not same. Now coming to your questions. Suppose a motor van be loaded to maximum 80% of its rating. Now during some time it is running at 50% load. It happens often in plant. Now in that time if the voltage falls then there won't be significant overload. But under voltage... That is why separate relay is considered
@@electricaltechnologyandind5335 if i understood correctly if we keep overload realy even though in under voltages also our system will not damage but only it's steady state performance will be Afftected.
Yes
Please explain, how many relays can be connected through one CT, are all connected on the same core, each relay has different application so how are they done?.
Actually modern day numerical relays take current input from one core, and analyze for different application. Only differential protection is connected through ps class CT
@@electricaltechnologyandind5335 Thanks
Try to upload generator capability curve for supercritical generator
Why 50L/R and 50 (Instantaneous Over current) both required for motor?? How you will distinguish these to condition??
Current >=2*motol flc is detected by 50lr, and for current higher than 7 times is detected by 50
Bhai apne like this kehte samay kya kia 1:16 pr
it can also occur problem during its start how to solve its problem
Which can also create problem?
sir hindi and English dono mi batana chaheyi olr
where is the 51 & the 51N?
Motor has no need of 51 and 51n inverse time relay should be avpided for motors
Hindi please sir
Hindi me video banaeA
Vdo me bhi fat mar diya 😛
First of all spelling is wrong!!!!! Secondly vai itna to akal hai ki fart marta to usse edit karke nikal deta!!!!!! Those have been microphone sound.. so relax...
Thanks 🙏