| ??? 07/15/08 13:51 Read: times |
#156721 - I made some experiences... Responding to: ???'s previous message |
From my memories, above is a simple equivalent quadripole for a low-frequency (no distributed caps included), 1:1 transformer. For iron core, Lp and Rp are induction sensitive. And Rs1/Rs2 (cooper resistance) are temperature dependant. So, the idea is keeping R1/Rs as low as possible and LP/Rp as high as possible. Or: lot of turns, of big wire. For practical use, with quite good core material, I would use no more than 2,000Gauss at nominal voltage. It keeps core losses low. The standard 10K or more Gauss for indction produces heating that will give you the drift. And also phase shift (if it matters). Good luck Daniel |
| Topic | Author | Date |
| Voltage sense circuit drift problem | 01/01/70 00:00 | |
| Transformers | 01/01/70 00:00 | |
| thanks | 01/01/70 00:00 | |
| You Could measure the Temperature | 01/01/70 00:00 | |
| You would have to measure! | 01/01/70 00:00 | |
| OFF load ?? | 01/01/70 00:00 | |
| AC Grid | 01/01/70 00:00 | |
| Sense mains voltage directly | 01/01/70 00:00 | |
| RE: get a proper voltage transformer | 01/01/70 00:00 | |
| isolation with a divider | 01/01/70 00:00 | |
| Load | 01/01/70 00:00 | |
| from the OP | 01/01/70 00:00 | |
| I hate transformer makers | 01/01/70 00:00 | |
| Time to get them in, then? | 01/01/70 00:00 | |
I made some experiences... | 01/01/70 00:00 |