SEG XD1-G XD1-G Generator Differential Protection
Generator Differential Protection (ANSI 87G, 87M) for DIN rail mounting.
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SEG XR1 XR1 Rotor Earth Fault Protection
Detection of high impedance earth faults in rotor windings of synchronous generators in two stage design. Short circuit and overvoltage proof measuring input for earth fault protection. Separately set
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SEG XE2 XE2 Loss of Excitation
Loss of Excitation - Generator DC exciter current supervision, over-, undercurrent and diode failure detection. 0 - 300 Hz, Exciter overcurrent: I> = 0 - 15 A (min 0,2 A) tI> = 0 - 5 s / 0 - 50 s; Exciter undercurrent: I< = 0 - 5 A (min 0,2 A) tI< = 0 - 5 s / 0 - 50 s; Diode Failure detection: IR> 0 - 125 % (min 10 %)
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SEG XU1E XU1E Residual Voltage
Residual Voltage Protection - Detection of Earth Faults in isolated or high ohmic grids. Basic time delay accuracy = 0.5 % or ±25 ms. Accuracy of the specific rated values: 1 % at nominal frequency
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SEG XP2R XP2R-5/1A Reverse Power
Measurement phase-to-neutral or phase-to-phase voltage. Tripping times for supervision P> and PR< adjustable.
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SEG XG2 XG2 Generator Protection - Vector surge
Protection of generators in mains parallel operation by switching off very quickly in case of mains failure. Protection against unintentional asynchrounus grid connection after grid failures/outages (e.g. auto recolsure attempts).
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SEG XI1I XI1I - Time Overcurrent Relay
As an universal time overcurrent protection, the XI1-I relay of the PROFESSIONAL LINE is generally used in radial and meshed systems. Among other, it is applied as: selective overload and short-circuit protection relay for electr. machines, lines and networks or for load dependent connection and disconnection of consumers and electric power generators. Order Variants of the XI1I XI1I1 (1 A) – ANSI 50,51 XI1I5 (5 A) – ANSI 50,51
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SEG XI1-1A XI1 Phase Overcurrent 1A
1A, DIN Rail, DEFT, NINV, VINV, EINV, ANSI 50, 51, IEC 60255-1, 250 x In (half cycle), 100 x In for 1s, 30 x In for 10 s, 4 x In continuous
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SEG XI1-5A XI1 Phase Overcurrent 5A
5A, DIN Rail, DEFT, NINV, VINV, EINV, ANSI 50, 51, IEC 60255-1, 250 x In (half cycle), 100 x In for 1s, 30 x In for 10 s, 4 x In continuous
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SEG XI1E XI1E 1A / Earth Overcurrent
1A / Earth Overcurrent for Compensated or Isolated Grids. 250 x In (half cycle), 100 x In for 1s, 30 x In for 10 s, 4 x In continuous. IEC 60255-1
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SEG XI1ER XI1ER 1A / Directional Earth Overcurrent
1A / Directional Earth Overcurrent for Compensated or Isolated Grids. High Precision. IEC 60255-1.
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SEG XI1ER XI1ER 5A / Directional Earth Overcurrent
5A / Directional Earth Overcurrent for Compensated or Isolated Grids. High Precision. IEC 60255-1
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SEG XI1S XI1S 1A / Earth Overcurrent
1A / Earth Overcurrent for Solid Grounded Grids. Characteristics DEFT, NINV, VINV, EINV
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SEG XI1S XI1S 1A / Directional Earth Overcurrent
1A / Directional Earth Overcurrent for Solid Grounded Grids. 250 x In (half cycle), 100 x In for 1s, 30 x In for 10 s, 4 x In cont.
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SEG XI1S XI1S 5A / Earth Overcurrent
5A / Earth Overcurrent for Solid Grounded Grids. Characteristics: DEFT, NINV, VINV, EINV
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SEG XI1S XI1S 5A / Directional Earth Overcurrent
5A / Directional Earth Overcurrent for Solid Grounded Grids. 250 x In (half cycle), 100 x In for 1s, 30 x In for 10 s, 4 x In continuous.
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SEG XM1 XM1 5A / Motor Protection
5A / Motor Protection - Overload, Short Circuit, Undercurrent, Current unbalance, Earth Fault, Stall/Jam Protection
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SEG XM1 XM1 1A / Motor Protection
1A / Motor Protection - Overload, Short Circuit, Undercurrent, Current unbalance, Earth Fault, Stall/Jam Protection
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SEG XN2 XN2 Voltage, Frequency and Vector Surge
Mains decoupling / Generator Protection / Load shedding
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SEG XN2 XN2 Voltage, Frequency and ROCOF (df/dt)
Mains decoupling / Generator Protection / Load shedding
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SEG XU1DC XU1DC 100-500 V / DC Protection
100-500 V dc / DC Protection for DC circuit of Inverters / UPS or Station Batterie Monitoring
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SEG XU1DC XU1DC 24-60 V / DC Protection
24-60 V dc / DC Protection for DC circuit of Inverters / UPS or Station Batterie Monitoring
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SEG XF2 XF2 Over and Underfrequency Supervision
Over and underfrequency supervision for one phase or three phase systems
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SEG XU2AC XU2AC Over- and undervoltage Protection
100Vac, 110Vac, 230Vac, 400Vac (Rated voltage selectable via DIP settings). Settable Hysteresis 3, 6, 10%. Accuracy: Un = 100 V / 110 V / 230 V / 400 V 1% (phase to phase Voltage) and (phase to ground Voltage). Thermal capacity: Continuous 520 V ac. IEC 60255-1
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SEG XUF2 XUF2 Voltage and Frequency Protection
Voltage and Frequency Protection. 100Vac, 110Vac, 230Vac, 400Vac (Rated voltage selectable via DIP settings).
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SEG XRI1-IR XRI1-IR – Digital multifunctional relay for time overcurrent protection
The digital relay type XRI1-IR as time overcurrent protection has been designed for the use in electrical machines, lines and grids. The protective functions of XRI1-IR that are implemented in only one device are summarized as follows: Independent (Definite) time overcurrent relay. Inverse time overcurrent relay with selectable characteristics. Integrated determination of fault direction for application to doubly infeeded lines or meshed systems. Furthermore, the relay XRI1-IR can be employed as a back-up protection for distance and differential protective relays.
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