Greater Tulsa Area Classifieds Moderated Newsgroup > Sapulpa
> Relay phase under and overvoltage abb c-pve
Relay phase under and overvoltage abb c-pve
The CM-PVE phase monitor is used to monitor supply voltages for undervoltage, overvoltage and phase loss (Vmeas <60% x Vnom). If all three phases are present with correct voltage, the output relay energizes. If a fault occurs, i.e. if the voltage [L-L (L-N)] exceeds the voltage value Vmax (460 V / 265 V) or falls below the voltage value Vmin (320 V / 185 V), the output relay de-energizes and the yellow LED turns off. The relay re-energizes automatically as soon as the voltage returns to the normal range, plus a fixed hysteresis of 5 %. The product with neutral monitoring can also be used in single-phase supplies by jumpering the three phase terminals (L1, L2, L3) and connecting only one phase.
Data Sheet at: http://library.abb.com/GLOBAL/SCOT/scot260.nsf/VerityDisplay/2FEA2D87FE174E1385257099004EDABE/$File/CM-PVE.pdf
