Recent content by Arun Balaji

I didn't got what this pic shows can u please explain?

Whether the increase in magnetic path length affect the output of the transformer? If so can you give any formula related to that? We mainly using the voltage per turn formula

We tried reducing the core with same number of turns but the phase error is increasing my next option is to increase the core and decrease the turns We having calibrated equipment to compare the values from standard kit and test transformers

Thank Thank you tom we tried paralleling 2 14SWG at secondary side it somewhat reduced the error but not much. We can't add more wire in parallel which will increase the production cost. When I increase the secondary turns it shows phase error in negative (means we have to reduce core area)...

We designed ad 1 volt per turn

Primary resistance - 17.2 Secondary resistance - 0.27 Whether this winding resistance affect my accuracy level

IS 3156 - the standard we need to follow for desigining the metering transformer

Thank you for your response 1. We are designing single phase metering unit 2. We doing prototype and testing using PT test kit (comparator) 3. As per standard this metering have to be in accuracy class 0.2 that means the output voltage should only have plus or minus 0.2 difference. But we are...

I am in a team of designing a 33KV potential transformer. We done secondary turn as 75 and primary turns as 15000 with core cross sectional area of 5000 sq.mm. As per IS standard we need to maintain a accuracy class of 0.2 at 50VA burden but we can't able to achieve it. Someone please help us to...