Sir, suppose there is a damage to few 2volt cells of the battery bank of 110volt battery system of dc supply. Can i remove say six cells and add a 12volt lead acid battery available for home inverter from market and add in series as an emergency. Will it have any consequences?
Nitesh sir mene apne ghr me mcb 63 amp ka lga rkha tha Havells ka ,or aaj rccb lgaya 40 amp ka Siemens ka, kyunki ghr ka load km h . Jese ki mcb pehle lgta h or uske baad me rccb thik vese connection jb kiye to rccb ekdum trip ho ja rha h jese hi me koi fan load ya refrigerator load on krta hu ...Lekin jb mcb. (63amp. D.P.) ko rccb k baad lgaya to rccb normal work kr rha h ...ab mujhe ye btaaye ki ye connection shi ese hi rehne de ya fir rccb(40amp.) mcb (63amp. D.P) k baad lgaye. And Jo mcb single pole k lge h vo 10 amp or 16 amp k h lekin jb me wire daal k socket se short kia to mcb trip hi nhi hota blki socket burn hone lg gyi. Plz suggest me some good idea
helo brother kya hal hay ye pochna tha k ht volt kitni dori say noqsan karty hay matlab kitny volt par kitni dori say ap kam kar sakty plz reply kijey GA thanx
So in the case above are we further going to trace the positive earth fault identified or look for loose connection at the MCB for rectification please explain? (Enjoyed watching your video)
Sir please btaiye kya shut down liye bina hum particular section ko one by one isolate kr ke means uska ckt disconnect kr ke (DCDB se) dc leakage test kr skte h
Sir i am diploma trainee in pgcil....and learning a lot from ur videos..thank u so much for uploading such videos.... please keep giving new videos and more information....😊 Want ur reply also.......
Thanks for learning from my Videos Amit !👍 That's great !! PGCIL is a one of the best Organization to Work for electrical engineer. Keep on learning and serving Country !👍 I will be replying. Thanks 👍
DEAR SIR , Let me introduce my self as a protection engineer ,working for Schneider electric. Sir I got from your video that how I can know whether it is a +ve or -ve DC earth fault. As DCDB provide DC voltage to all required ckt(i.e C&R panels, CB ckt.) . So how can I easily trace out that particular ckt. where the earth fault occur so that I can make my system normal?
1. Light - Check all the concerned ckt. 2. Earthing :- You need to test Earth resistance of earth pit using ERT meter. If value is ok then earthling is good.
Ab earth fault ko trace kaise karoge jabki cable to sab jagah ja rhi ho underground and through chanel or congested area .....that u know what I am asking... Plss reply
Sir please reply karna Mera job laga hi Estimation engineer me join krna chaiye kya FUTURE kaisa rahega Company panel manufacturing company hi please reply
Nice bro... I saw many of your videos, u have good knowledge and also u can explain very well. Best wishes, keep making more and more videos, our youth needs confusion free knowledge as u giving...👍
Watch this Video. I have uploaded today to answer your questions. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-auwNwBGX744.html This is in English language. If you want to watch in Hindi then link is given in the description box of this video. Or search in my channel. Thanks.
If there is a minor difference between positive - Earth and negative Earth voltage then DC is leakage anywhere or not.If leakage then how we find out at which point DC Leakage and we can short it.Plz explain..
Thank you sir. After identify how to solve this earth fault. 1Q. What is float charging & Boost charging and for 10 KW dc motor what capacity of battery bank required? Please explain.
How we get voltage reference to earth where battery is not grounded.you only get voltage from +ve to- ve value. So you must describe the middile point earhing first.
I want to know what about Telecom Systems where we need negative voltage where the positive is grounded in order to give negative voltage to the systems
Dear sr Positive aur negative me 220 v dikhata hai lekin positive me earth se +110 v dikhata hai neg me -110v dikha hai aisa kyo kyo nhi +220 aur - 0 dikhata
That s tricky. it might even cancel out showing 0 leakage (on a milli ammeter meant for that). But still with a multimeter, you can check the voltage between + and earth and then the voltage between - and earth and see if they are in equal in magnitude. if they are, no leakage. if the values are nt half of the dc system voltage, then there is leakage (lower voltage than half of the system dc voltage)
Switch off one by one ckt and check the positive with respect to ground. If you get 110V +Ve then the problem is there in that particular ckt. For an example:- if you switch off Isolator control ckt as per drawing and then check. One by one. CB closing ckt. For each and every ckt. There will be a particular MCB.
