Dear Viewers,Please Watch the Video. Thank You. pt megger test,Potential Transformer meggering,IR test of PT,Process of meggering PT,pt test,how to check pt,what is pt in electrical,insulation test of pt
Пікірлер: 18
@amitpagare5946Ай бұрын
Very informative video 🙏🙏🙏🙏
@electricalpassionateАй бұрын
You are welcome. Thank you for watching the video. Please watch other videos on this channel. ❤
@umadevi6754Ай бұрын
Super sir.. your video thank you
@electricalpassionateАй бұрын
You are welcome. Please keep watching. Thanks❤
@dodiyasanjay7777 Жыл бұрын
Battery impedance test video
@electricalpassionate Жыл бұрын
You are welcome. I am trying.Please keep watching. Thank you.
@dodiyasanjay7777 Жыл бұрын
@@electricalpassionate ok sir
@konstantinostheo29119 ай бұрын
The n terminal usually has thin wire with poor insulation, if we apply 5kV at HV terminal while we perform the primary to body or primary to sec test wont we stress or damage the insulation of wire of N terminal?
@electricalpassionate9 ай бұрын
you are most welcome. Sufficient insulation is provided at Primary side to withstand 5KV voltage. When the fuse at primary side neutral opened accidentally then full primary voltage appeared at the N- terminal. Thank you for watching the video and commenting on it.
@konstantinostheo29119 ай бұрын
@@electricalpassionatebut we don’t put fuse in neutral at primary side, we install fuses at secondary windings only.I mean the wire that ends at N terminal on the secondary box has small cross sectional area, so can it withstand the 5kv dc volt on insulation resistance test?
@electricalpassionate9 ай бұрын
@@konstantinostheo2911 On that case, you must have seen a Link and the Link is connected with the body/tank. When you will perform the IR test you have to open that link. Otherwise, you will get no result. Again a 132 KV or 33KV PT has provided sufficient insulation and you can use 5KV for testing the PT easily.So far as the Secondary winding is concerned, you must use 500Volt. Thank you.
@ElectricalDot87043 ай бұрын
Sir , in 132kV/110V PT what should be the insulation resistance value?? Primary to earh , primary to core-1 , core-1 to earth????.... please reply
@electricalpassionate3 ай бұрын
You are welcome. So far as my knowledge is concerned there is no effective thumb rule for calculation of IR value. For a new 132KV PT it should be as high as possible. But for older one it should be how? In few cases IR values of such PT were between pry. to earth 40 to 50 mega ohm and Secy. to Earth were only, 5 to 10 megaohm.And they were running smoothly. Experience will act accordingly. Thank you.
@ElectricalDot87043 ай бұрын
Thank you so much sir, today I tested 132kV/110V CVT which is made by Alstom and manufacturing year is 2012. and it is not charged so far from 2012. the insulation resistance we obtain as primary to earth - 374 Giga ohm, primary to core 1 -112 Giga ohm, primary to core 2 -38.4 Gohm, core 1 to earth is 2.14 Giga ohm, core 2 to earth -5.7 Gohm, core 1 to core 2.23 Gohm............. Sir how can I make a conclusion of this?? Please reply...
@electricalpassionate3 ай бұрын
@@ElectricalDot8704 IR values are good enough.If other parameters are good then it can be put into service. Sorry for belated reply. Thank you.
@ElectricalDot87043 ай бұрын
@@electricalpassionate thank you sir 🙏
@user-jg7bb3wi8h6 ай бұрын
Could you pls add (slid/pdf) file for u. Lecture....