Hi, I am using nylon 66 part for insulation. When I test single part with busbar then megger value shows around 500 mega ohm. Than I took several nylon 66 parts with bigger busbar than megger value goes down to 50 mega ohm only. Please confirm if any issues in nylon 66 material. Thanks.
Megger value also depends on various factors like time of measurement whether you are measuring it for 30 sec or 1 min or 10 min .so time must be same ..Voltage selection while measuring must be same . When we take megger value we measure Insulation resistance value and resistance is inversely proportional to the Area of material...Nylon 66 is used in electrical insulation and value may vary with the area ...One more thing you must consider,make sure that nylon 66 must be free from moisture as moisture also decreases megger value ...
Sir I have done HT Motors Megger number of times but I did not find increased value of Megger in other pairs .As far as I know Megger also inserts current which heats the winding and moisture content decreases only then a little bit Megger value can change. Here also your question is incomplete u didn't clear that increased voltage or Megger in other pairs .
Sir ,Depending upon the operating voltage per 1000V =1 Megaohm If it is 6.6 Kv then it should be min 6-7Mohm and if it's 11 kv then min value should be -11-12 Mohm
MEGGER use karte kisi bhi equipment ka insulation value check karne k liye,aur DC voltage inject karte hai...jada high value ya jada te Tak DC voltage inject karne se insulation value bhi down hoti hai...to 33 kV agr rating hai equipment ka ...to 20 kV enough hai MEGGER me inject karne k liye ,11kv ,5 kv se bhi value ajayegi...
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Hi, I am using nylon 66 part for insulation. When I test single part with busbar then megger value shows around 500 mega ohm. Than I took several nylon 66 parts with bigger busbar than megger value goes down to 50 mega ohm only. Please confirm if any issues in nylon 66 material. Thanks.
Megger value also depends on various factors like time of measurement whether you are measuring it for 30 sec or 1 min or 10 min .so time must be same ..Voltage selection while measuring must be same .
When we take megger value we measure Insulation resistance value and resistance is inversely proportional to the Area of material...Nylon 66 is used in electrical insulation and value may vary with the area ...One more thing you must consider,make sure that nylon 66 must be free from moisture as moisture also decreases megger value ...
Tranceformer ir testing kaise karte hai sir
Normal jaise winding ki krte h
Cable ka nhi bataya..??
Will explain in my another video ..vaise to same process hota h cable ka b jaise winding ka krte h ....
Cable me bhi aise hi chek karna hai kya
Bilkul MEGGER krne ka method same hi h ...bs voltage level select cable ki rating k hisab se karni h..
30 kv de skte h 33 kv system par
Bilkul bhi nahi..
HT motor ke ek pair me jab IR test karte hai to uske baad baki pair me karte hai to value increase hoti jati hai,Kyon?
Sir I have done HT Motors Megger number of times but I did not find increased value of Megger in other pairs .As far as I know Megger also inserts current which heats the winding and moisture content decreases only then a little bit Megger value can change.
Here also your question is incomplete u didn't clear that increased voltage or Megger in other pairs .
HT motor ki IR valve minimum kitni honi chahiye
Sir ,Depending upon the operating voltage per 1000V =1 Megaohm
If it is 6.6 Kv then it should be min 6-7Mohm and if it's 11 kv then min value should be -11-12 Mohm
Equipment
Means ?
33 kv me kitna aana chahiye
MEGGER use karte kisi bhi equipment ka insulation value check karne k liye,aur DC voltage inject karte hai...jada high value ya jada te Tak DC voltage inject karne se insulation value bhi down hoti hai...to 33 kV agr rating hai equipment ka ...to 20 kV enough hai MEGGER me inject karne k liye ,11kv ,5 kv se bhi value ajayegi...