The new EL3413 EtherCAT power measurement terminal is a further development of the popular EL3403 power measurement terminal. With a maximum of 690 V AC, the voltage inputs are designed for the direct monitoring of high-power generators, as used in the wind power industry, for example. The upstream connection of a voltage transformer for currents up to 1 A is no longer necessary and leads to a reduction in costs. Higher currents are measured via current transformers. The electrically isolated current inputs enable use of the terminal in all common earthed current transformer circuits, such as 2- or 3-transformer configurations with star or delta connections.
Simple network analysis is also possible with the EL3413. With the aid of the integrated harmonic analysis functionality, measurements up to the 21st harmonic can be accomplished. Like all measured terminal data, the harmonic content can be read via the process data and processed by the higher-level controller.
The new EL3413 EtherCAT power measurement terminal is yet another advancement in the field of power measurement technology from Beckhoff, in order to better meet the requirements for the generation of regenerative energy in particular. Higher voltages, electrically isolated current inputs and harmonic analysis make the EL3413 the ideal tool for simple grid monitoring and analysis.