| 摘要 |
1471570 Measuring voltage and current SIEMENS AG 18 Dec 1974 [20 Dec 1973] 54803/74 Heading G1U The potential of a conductor 3 within a resin bush 1 is measured by embedding a metal cylinder 4 in the bush concentrically with the conductor 3, so that the conductor and the cylinder form a capacitor, by connecting the capacitor so formed to a second capacitor 5 to form a capacitor divider, and by indicating 11 the resulting voltage across the second capacitor 5. The current in the conductor 3 is also measured using a coreless transformer 18 as described in Specification 1471569. |
