Timeline for Voltage across transformer primary to secondary - ways to mitigate
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 6, 2019 at 14:21 | comment | added | Marko Buršič | @KalleMP I never meant to connect somethng between primary and secondary, but between earth and secondary. | |
| Feb 4, 2019 at 22:34 | comment | added | KalleMP - CoDidact fan | Occasionally a high value M.ohm high voltage resistor is sometimes used to carry the primary ground reference to the secondary winding. This is to reduce the chance of static build up. If the primary earth is good this should counteract some of the capacitive leakage but removes the full isolation. | |
| Feb 4, 2019 at 22:31 | comment | added | KalleMP - CoDidact fan | Connecting ANY surge arrestor components that can activate to low impedance from primary to secondary is VERY dangerous if you want to maintain isolation. You can place them across the primary to limit mains spikes or secondary to limit output spikes but connecting from primary to secondary is asking for a big problem. | |
| Mar 8, 2016 at 9:23 | comment | added | Marko Buršič | @gtn The secondary is coupled trough capacitance withe the environment (or primary) which is referenced to the earth, therefore the secondary is still always in relation to the earth potential, no matter how you are trying to isolate the secondary. So it is better to use MOVs, spark gaps, trisil.. to limit the primary vs. secondary voltage. | |
| Mar 7, 2016 at 15:57 | comment | added | gtn | the secondary is not referenced to Earth, and is low voltage. | |
| Mar 5, 2016 at 15:42 | history | answered | Marko Buršič | CC BY-SA 3.0 |