Digital ratiometer PROVA 1660

• Measurements of løand 30Transformer/VT/CT Turns Ratio. • VT/PT ratio 0.8’.’lOOOO, CT ratio 0.8200O. • Graphical and Literai Illustration of Measurements and Connections with Large Back-lighted Dot Matrix 240 x 128 LCD. Dispiay Test Data with Nameplate Transformer Values for Easy Interpretation. • Ten Test Frequencies (50”400Hz). • Display Turns Ratio, Deviation, Secondary Output, Excitation Voltage and Current, Phase Angle and Nameplate Transforrner/VT/CT Values in one page for easy transformer quality interpretation. • Check for Live Test Points, Short Circuit, Open Circuit, and Reverse Polanty before Each Measurement. Message is displayed to Wam Users (But, checking is not performed once measurement starts). • Store 4096 Files of Transformer Nameplate Values (VT/PT/CT, 10/30, Test Frequency, Pnmary and Secondary Voltages or Ratio, RCF) and Measunng Data. • 9 types of 30 Windings Connections pre-installed for easy user selection. • Wireless Blue Tooth Communication with PC. • Select Filter to Remove Field Noise (Slow, Normal, Fast). • Disable or Enable Auto-Power-Off with Programmable Time. • Built-in calendar dock. Records with Date and Time Stamp. • Powerful Lithium Battery (3400mAH) with built-in Charging Circuit. • User Programmable RCF (Reference Correction Factor, O.99»1.O1) to Correct Accuracy within 1% Error. • Fnendly File System for Easy On-site Data Retneval and Nameplate Values Management. • PC Application Software included.