Percentage Biased Differential Relay for 3-Winding Transformer

37, 46N, 50/51, 50N/51N, 51B

• Three-Phase percentage biased differential relay for two-windings transformer
• Two differential current levels
• One restricted Earth Fault level
• 2nd and 5th harmonic adjustable restraint levels
• Programmable percentage bias curve
• Oscillographic recording
• Modbus Communication Protocol
• UL/CSA listed