When contacting a live wire, an audible signal is heard and all 4 indicator lights are on. After 5-10 seconds, LED2-4 go out and the audible signal stops. The transmitter's working time set for voltage measurement is 5-10 seconds, after which it automatically enters phase measurement. At this time, only one LED indicator light is on. If the audible and visual signal does not stop after 5-10 seconds, the battery is low and needs to be replaced. To measure another phase line, the transmitter must be removed from the line and wait until LED1 goes out before placing the transmitter on the line for another voltage measurement.
Similarly, when entering measurement mode, the transmitter emits radio frequency signals into the air, and part of the signal is transmitted along the line acting as an antenna. Once the receiver can identify the signal, it immediately starts working. The wireless phase verification instrument is a special device used for phase sequence verification before installation and operation of high-voltage power lines and large equipment such as transformers. The RXHX2000 phase verifier has changed the previous contact measurement method, eliminating the danger of contact measurement and effectively ensuring the personal safety of measurement personnel. The measurement method is simple and the measurement results are reliable.
1. The RX wireless phase verifier is used to verify the phase of high-voltage power lines under operating voltage. It is a live-line testing tool. In particular, the phase verification rod that directly contacts high voltage has undergone a high power frequency withstand voltage test. The results show that its insulation performance and safety distance can meet the requirements of electrical safety regulations. In addition, since the end of the phase verification rod is equipped with a discharge indicator tube, personal and equipment safety can be guaranteed even when the connection between the end of the phase verification rod and the phase verification meter is disconnected.
2. From the simulation of voltages at both ends, the maximum phase difference of 30° for same-name phase voltages (such as lines after long-distance transmission), although adjusting the r and r′ resistors cannot completely balance the bridge, compared with the Ig values measured for the other two different-name phases, the difference is 2-3 times, and the different phases of the three phases can still be distinguished.
3. After a long period of practical use by relevant power supply bureaus, it is generally reported that the instrument is safe, reliable, easy to use, has high phase discrimination capability, and is portable.
4. After a certain high-voltage calibration, the instrument can also be used for measuring high voltage.
