YES You an make videos on Topics like Busbar differential, Ref./SEF differential, and other protections (ANSI) which Numerical relays are capable of operating like 50, 50N, 51, 51N, 87L/87B, 64R etc.
Please correct the explanation, 3 min it won't close automatically. No breaker will close on auto after 3 min of fault. Reclose for the first time,then it will remain in open if fault persisting. Especially auto reclosing available in only one phase fault condition. Consider in 3 phase line, one line not available for min, then entire power system will be collapsed in negative phase seq. So whatever the duty cycle mentioned, it is the breaker duty and not related to fault clearing time.
Yes. I admit that. Gaurav sir deserve for all the credits due to his hardwork and the way of his wonderful presentation. Explanation is so much simple. Thanks Gaurav sir.
Dear Sir, plz make a video regarding how the ac and dc connections are given in control and relay panel as a redundant electrical sources to make system uninterrupted. Also plz tell about where is ac and dc supplies required in control and relay panel for 33kv, 132kv, 220kv and above system.
I wanted to know is there any video about "how electricity is provided while it's raining and why we don't hear about any accident caused by electricity while its raining?"
Mr Gaurav in my worksite substation for traction power we have SF6 CBs , 3pcs for Incomer 1 and the other 3 for iIncomer2. The center CB is connected by signal and electrical cables with the outer CBs. In case of Transient fault all 3 CBs operate simultaneously. Transparently these CBs are not MGO. So my question is, are these CBs EGO? If Yes Why?
Sir in past 3 months, in our area we had floating neutral fault twice. It has damage many of devices and adapters for all homes in our area. I checked and mostly voltage was around 350v-400v during fault. What device for home do you recommended to prevent this, something that turns off supply in home in such condition. I found device amiciSmart Over/Under Voltage device, but what I found is device is themself rated for only upto 300v max. Device will probably burn or may work for few minutes over 300v or behaviour will be unknown. Can you suggest what type of device is suitable for home use?
