NETA Handbook Series II, Protective Relay Vol 1. NETA Handbook Series II, Protective Relay Vol 2. , April 27, 2018 June 12, 2021. 2001 · sel-351a instruction manual sel-351a instruction manual table of contents section 1: introduction and specifications section 2: installation section 3: overcurrent, voltage, synchronism check, and frequency elements section 4: loss-of-potential, load encroachment, and directional element logic section 5: trip and target logic SEL-2505 Remote I/O Module Instruction Manual - Sertec Relay 487B-1_IM_20210708 - Free ebook download as PDF File (.pdf), Text File (.txt) or read book online for free. Scribd is the world's largest social reading and publishing site. Instruction Manual. SEL-487B-1 Bus Differential and Breaker Failure Relay. Instruction Manual. 20210708 SEL-734B Compact Enclosure Applications The compact enclosure provides single-phase monitoring and three-pole control in a small 12" x 10" outdoor fiberglass enclosure. The socket-based enclosure is available in two different 6-jaw form factors and one 4-jaw form factor. SEL-487B Bus Differential and Breaker Failure Relay. 32 Pages. SEL 20080110 SEL-421 Relay Protection and Automation System Instruction Manual Applications Handbook www *PM421-02-NB*ElectricalPartManuals . com SEL-700G Generator Protection Relay Comprehensive protection for large, medium, and small generators • Provide primary and backup generator protection with current, voltage, frequency, distance, power, and out-of-step elements. • Achieve 100 percent stator ground protection with full winding SEL-487E-3, -4 Transformer Differential Relay Three-Phase Transformer Protection, Automation, and Control System Major Features and Benefits The SEL-487E Transformer Differential Relay provides three-phase differential protection for transformer applications with as many as five three-phase restraint current inputs. Use the three independent restricted earth fault (REF) elements for sensitive SV5 = 87A1 + 87B1 + 87C1 TR1 = SV5T + 87A2 + 87B2 + 87C2 where Vs = voltage setting calculated with SEL-587Z Instruction Manual Equation 3.4. A neutral overcurrent (50N) relay is also recommended for sensitivity. A system that does not meet the requirements should be protected by an SEL-487B Relay. complete substation bay control in one economical system • Customize distribution protection using multiple instantaneous, time-overcurrent, and directional elements. • Detect high-impedance faults with Arc Sense™technology (AST). • Implement bay control with complete two-breaker control and high-speed breaker failure detection. File Name <487E-3-4_400_IM_20190211-20181115.pdf> Volume: Instruction Manual Title: SEL-487E-3, -4 Transformer Protection Relay Title: SEL-487B-1 Bus Differential Relay Short File Name <487B-1_DS_20181115.pdf> schweitzer engineering laboratories SEL Protection Relay Library / Record Number: 49 • SEL-411L Advanced Line Differential Protection, Automation, and Control System • SEL-487B Bus Differential and Breaker Failure Relay • SEL-487E Transformer Protection Relay • SEL-487V Capacitor Protection and Control System • SEL-3530 Real-Time Automation Controller (RTAC), SEL-2032 or SEL-2030 Communications Processor