The metering function permits interrogation of the relay to obtain power system voltage,
current, real power, and reactive power readings. The function also includes per-phase
measurements of voltage and current. Metering is very valuable for unmanned or remote
substations.
The CLOSE, A1, A2, A3, A4, and ALARM outputs may be specified as
"
a
"
or
"
b
"
type
contacts. TRIP outputs are always an
"
a
"
type contact.
The relay is compatible with the SEL-PRTU™ protective relay terminal unit, the SEL-DTA™
Display/Transducer Adapter, SEL-RD Relay Display, and the SEL-PROFILE
®
Transmission
Line Fault Analysis Program.
Date Code 920508
Introduction
SEL-221F, -1 Instruction Manual
1-5
Summary of Contents for SEL-221F
Page 3: ......
Page 10: ......
Page 11: ......
Page 12: ......
Page 13: ......
Page 69: ...Date Code 920508 Specifications SEL 221F 1 Instruction Manual 2 44 ...
Page 70: ...Date Code 920508 Specifications SEL 221F 1 Instruction Manual 2 45 ...
Page 71: ...Date Code 920508 Specifications SEL 221F 1 Instruction Manual 2 46 ...
Page 72: ...Date Code 920508 Specifications SEL 221F 1 Instruction Manual 2 47 ...
Page 110: ...Example Event Report 2 4 12 Event Reporting SEL 221F 1 Instruction Manual Date Code 930830 ...
Page 158: ...SETTINGS SHEET FOR SEL 221F RELAY PAGE 2 OF 6 DATE Date Code 921110 ...
Page 160: ...SETTINGS SHEET PAGE 4 OF 6 FOR SEL 221F RELAY DATE Date Code 930601 ...
Page 161: ...SETTINGS SHEET PAGE 5 OF 6 FOR SEL 221F RELAY DATE Date Code 961208 ...
Page 229: ...SEL 200 Series Relay Main Board Troubleshooting Test Points and Jumper Locations ...