Dear bacon4life,
THD in current
Dear Scottf
I think traditional CTs and PTs, There is not mention the manufacture but the data of CT's is :CT, 100-200/5-5A 16kA 30VA cl 0.5 7.5VA 5P15 and for PTs :VT, 15-20kV/V3:100V/V3;cl0.5 30-50VA.
About frequency response, i dont have information
Dear expert,
I found in THD our PM5500 meter on our SM6-24 switchboard showing around 50%-52%, I was surprised.
Is this coming from load side (LV/0.4 kV) or on HV side?
Then, I switch off ACB on LV side of Transformer , it's mean our transformer on no-load condition
I checked PM5500 meter on...
Dear All,
I have case in our transformer 20/0.4 kV,2500 kVA, 2002 year, DYn5, Ip, when we did IR thermograph today, 19 July 2022, we found temperature of S phase is 99 deg.C
This case is repeateable case before on April 20, 2022. At that time, temperature is 102.5 deg C at same location (S...
Dear Experts,
Last 8 October 2019, we did synchronization between our generator and our grid in 20 kV networking. Our generator is 11 kV and step up by transformer 11/20 kV, 12/15 MVA.
The Synchronization is fail. And 87T relay in breaker (this breaker connected between our Transformer and...
