Woodward SEG Protection Relays A-Z

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Line	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL	HTL
Current transformer inputs	3	3	4	4	4	4	4	4	4	4	4	4	1	1	1	1	1	3	4	4	4	3	4	4	4	4	4	4	4	4	4	3	4	4	1	1	3
Voltage transformer inputs	-	3	3	3	3	3	3	-	-	3	3	3	-	-	3	3	3	-	-	3	-	-	-	-	-	1	1	-	-	1	1	3	-	-	-	-	-
Binary inputs	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	5	5	7	7	7	7	7	7	7	7	2	2	-	-	-	-
Output relays	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	2	1	1	1
Watchdog relay	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	-	-	-	-
Time overcurrent protection [50/51]	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	-	-	-	-	-	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	-	-	-
Inrush stabilisation (2nd harmonic)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Yes	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Directional time overcurrent protection [67]	-	Yes	Yes	Yes	Yes	Yes	Yes	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Earth fault protection [50N/51N]	-	-	Yes	-	Yes	-	-	Yes	-	Yes	-	-	Yes	-	Yes	-	-	-	Yes	Yes	Yes	-	Yes	Yes	-	Yes	-	Yes	-	Yes	-	-	Yes	Yes	Yes	Yes	Yes
Sensitive EF isolated/compensated [50SN/51SN]	-	-	-	Yes	-	Yes	-	-	Yes	-	Yes	-	-	Yes	-	Yes	-	-	-	-	-	-	-	-	Yes	-	Yes	-	Yes	-	Yes	-	-	-	Yes	-	-
Resistance earthed / solidly earthed [50N/51N]	-	-	-	-	-	-	Yes	-	-	-	-	Yes	-	-	-	-	Yes	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Earth fault directional feature [67N]	-	-	-	-	Yes	Yes	Yes	-	-	Yes	Yes	Yes	-	-	Yes	Yes	Yes	-	-	Yes	-	-	-	-	-	Yes	Yes	-	-	Yes	Yes	-	-	-	-	-	-
Thermal replica [49]	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Yes	Yes	Yes	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Circuit breaker failure protection [50BF]	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	-	Yes	-	-	-	-
Differential protection: Restricted earth fault [64REF]	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Yes	Yes
Auto reclosing AR [79]	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Yes	Yes	Yes	Yes	Yes	Yes	-	-	-	-	-	-	-	-	-	-
Reset / Blocking	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	-	-	-	-
Voltage dependent function	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Yes	-	-	-	-	-
Time Date	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	-	-	-	-	-	-
Parameter sets	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	1	1	-	-	-	-
Fault recorder (none volatile)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	-	Yes	-	-	-	-
Disturbance recorder	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	-	-	-	-	-	-
Output relay matrix	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	-	-	-	-
Control and supervision of a circuit breaker (remote or local)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	-	-	-	-	-	-
RS485 Open Data Protocol	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	-	-	-	-	-	-	-	-	-	-	-	Yes	Yes	-	-	-	-
Modbus RTU Protocol	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	-	Optional	-	-	-	-
Profibus DP	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	Optional	-	-	-	-
All shown details without any guarantees! We reserve the right of changes without prior notice. ^*Only the basic device structure is shown. Differences in detail are possible.