Applications - Generator Protection

The Intelligent Generator Protection Relays from SEG Electronics provide a broad scope of primary and backup protective functions, from overcurrent protection to generator differential protection. High availability is a key factor for reliable power generation.

Product Finder

Our product finder makes it easy to select the right products:

Simply select the products you need by filtering the specification to match what you are looking for. Then swipe through the results.
A click on the product will then take you to the product page.

(swipe left to scroll)

Only ANSI Show all	MCDGV4 Generator Protection Device HighPROTEC	XG2 Generator-Mains Protection Professional Line	MRP2-3IU Power and Reverse Power Protection Relay HighTECH Line	XE2 DC Current Relay for Loss of Excitation Protection Professional Line	XP2-R Power and Reverse Power Protection Relay Professional Line	MRR1 Rotor Earth Fault Relay HighTECH Line	XR1 Rotor Earth Fault Relay Professional Line	MRG3-I Generator Protection Device HighTECH Line	MRQ1 Field Failure Relay HighTECH Line	MRG3 Generator Protection Device HighTECH Line	XUF2 Voltage and Frequency Relay Professional Line	XD1-G Differential protection Professional Line	MRP2-R3IU Power and Reverse Power Protection Relay HighTECH Line
Supervision
Current transformer supervision (60L)	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Voltage transformer supervision (60FL)	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Trip circuit resp. control circuit supervision (74TC)	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Communication
IRIG-B00X	⦿	-	-	-	-	-	-	-	-	-	-	-	-
DNP3 RTU	(Option)	-	-	-	-	-	-	-	-	-	-	-	-
DNP3 TCP	(Option)	-	-	-	-	-	-	-	-	-	-	-	-
IEC 60870-5-103	(Option)	-	-	-	-	-	-	-	-	-	-	-	-
IEC 60870-5-104	(Option)	-	-	-	-	-	-	-	-	-	-	-	-
Modbus [TCP]	(Option)	-	-	-	-	-	-	-	-	-	-	-	-
Profibus DP	(Option)	-	-	-	-	-	-	-	-	-	-	-	-
IEC 61850	(Option)	-	-	-	-	-	-	-	-	-	-	-	-
Modbus RTU	(Option)	-	(Option)	-	-	-	-	-	-	(Option)	-	-	(Option)
RS485 Open Data Protocol	-	-	(Option)	-	-	-	-	-	-	(Option)	-	-	(Option)
Protection
Q->&V<	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Out of Step Tripping (78)	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Vector surge/ mains decoupling (78V)	⦿	⦿	-	-	-	-	-	⦿	-	⦿	-	-	-
Phase balance (47)	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Inrush stabilisation [2nd harmonic]	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Sensitive EF isolated/compensated (50Ns/51Ns)	(Option)	-	-	-	-	-	-	-	-	-	-	-	-
Frequency gradient (81)	⦿	-	-	-	-	-	-	⦿	-	⦿	-	-	-
Negative sequence protection (46)	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Power direction (32/37)	⦿	-	⦿	-	⦿	-	-	-	-	-	-	-	⦿
Thermal replica (49)	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Field failure protection (40)	⦿	-	-	⦿	-	-	-	-	⦿	-	-	-	-
Power Swing Blocking (68)	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Time overcurrent protection (50/51)	⦿	-	-	⦿	-	-	-	⦿	-	-	-	-	-
Residual voltage (59N)	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Voltage protection (27/59)	⦿	-	-	-	-	-	-	⦿	-	⦿	⦿	-	-
Differential protection: Generator (87G)	⦿	-	-	-	-	-	-	-	-	-	-	⦿	-
Differential protection: Restricted earth fault (64REF)	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Differential protection: Transformer (87T)	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Frequency protection (810/U)	⦿	-	-	-	-	-	-	⦿	-	⦿	⦿	-	-
Earth fault protection (50N/51N)	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Resistance earthed / solidly earthed (50N/51N)	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Voltage Restraint Overcurrent Protection (51V)	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Earth fault directional feature (67N)	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Circuit breaker failure protection (50BF)	⦿	-	⦿	-	-	-	-	⦿	-	-	-	-	⦿
Directional time overcurrent protection (67)	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Diode failure	-	-	-	-	-	⦿	-	-	-	-	-	-	-
Rotor earth fault protection (64N)	-	-	-	-	-	⦿	⦿	-	-	-	-	-	-
DC exciter overcurrent protection (76)	-	-	-	-	-	⦿	-	-	-	-	-	-	-
Mounting Type
Housing suitable for door mounting	⦿	-	⦿	-	-	(Option)	-	⦿	(Option)	⦿	-	-	(Option)
Housing suitable for 19” rack mounting	(Option)	-	-	-	-	(Option)	-	-	(Option)	-	-	-	(Option)
Housing suitable for DIN rail mounting	-	⦿	-	⦿	⦿	-	⦿	-	-	-	⦿	⦿	-
Housing suitable for mounting plate	-	-	⦿	-	-	⦿	-	⦿	⦿	⦿	-	-	⦿
Housing is withdrawable	-	-	⦿	-	-	⦿	-	⦿	⦿	⦿	-	-	⦿
Inputs Outputs
Output Relays	10 ... 15 (Option)	2	4	2	2	4	2	4	4	4	2	2	4
Watchdog relay	1	-	1	-	-	1	-	1	1	1	-	-	1
Analog outputs	0 ... 2 (Option)	-	-	-	-	-	-	-	-	-	-	-	-
Analog inputs	0 ... 2 (Option)	-	-	-	-	-	-	-	-	-	-	-	-
Binary inputs	8 ... 24 (Option)	-	2	-	-	2	-	2	2	2	-	-	2
Current transformer inputs	8	-	3	-	1	-	-	3	1	-	-	6	3
Voltage transformer inputs	4	-	-	-	-	-	-	-	-	-	-	-	-
Additional Features
Parameter sets	4	-	1	-	-	1	-	2	1	2	-	-	1
Event recorder	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Fault recorder [none volatile]	⦿	-	⦿	-	-	-	-	⦿	-	⦿	-	-	⦿
Disturbance recorder	⦿	-	-	-	-	-	-	⦿	-	⦿	-	-	-
Programmable Logic	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Conformal Coating [for installations in harsh environment]	(Option)	-	-	-	-	-	-	-	-	-	-	-	-
Control and supervision of a circuit breaker	⦿	-	-	-	-	-	-	-	-	-	-	-	-
Control and detection of switchgears	6	-	-	-	-	-	-	-	-	-	-	-	-