| 摘要 |
System which makes it possible to determine parameters and observe an energy network without making contact with the network and at a variable distance from the latter by detecting low-frequency radio waves which are emitted by said network, are picked up by magnetic and electrical antennas, are amplified and are filtered by active filters and by digital signal processing software. This information is then corrected using information from vibration, inclination and temperature sensors located in the base of the antennas, finally obtaining the voltage, current, frequency, current direction, power factor and active and reactive power parameters. In addition to this, the system makes it possible to obtain vibration and inclination information relating to energy network structures and towers and to provide event alarms for the measured parameters. Using several of these systems makes it possible to obtain energy balance parameters, to measure transients, to determine the location where lines are physically cut off, and to measure the intensity and propagation of earthquakes. Said system includes an electric field filter, software for determining the optimum location for installing the system in the field, software for measuring the internal electromagnetic noise of the system and software for calibrating and determining parameters without the need to measure the distance between the system and the electrical line being studied. |
