|
Product Selection Table
|
High Tech Line
|
Professional Line
|
Basic Line
|
|
|
|
|
| Protection Function |
ANSI |
MR
|
IR
|
X
|
XR
|
B
|
| Overcurrent |
50/51 |
MRI3-I
|
IRI1-IE
|
XI1-I
|
XRI1-IE
|
BI1
|
| Directional Overcurrent |
50/51/67 |
MRI3-IR
|
|
|
XRI1-IR
|
|
| Earth Fault |
50N/51N |
MRI3-E
|
IRI1-IE
|
XI1-E
|
XRI1-IE
|
|
| Directional Earth Fault |
67N |
MRI3-ER
|
|
XI1-ER
|
XRI1-ER
|
|
| Circuit Breaker Failure Protection |
BF |
MRI3
|
|
|
|
|
| Voltage Restrained Overcurrent |
51V |
MRI1-IU
|
|
|
|
|
| Negative Sequence (current) |
46 |
MRS1
|
|
XS2
|
|
|
| AC Under & Over Voltage |
27/59 |
MRU3-1
|
IRU1-UO
|
XU2-AC
|
|
BU1-AC
|
| Neutral Voltage Displacement |
59N |
MRU3-2
|
IRU1-E
|
XU1-E
|
|
|
| DC Under & Over Voltage |
27DC/59DC |
|
IRU1-DC
|
XU1-DC
|
|
BU1-DC2
|
| Phase Balance (voltage) |
47 |
MRU3
|
|
XA1
|
|
BA1
|
| Under & Over Frequency |
81 |
MRF3
|
|
XF2
|
|
BF1
|
| Vector Surge |
78 |
MRG2
|
|
XG2
|
|
|
| Directional Power |
32 |
MRP2
|
|
XP2-R
|
|
BP1-R
|
| Transformer Differential Protection |
87T |
MRD1-T
|
IR1D1-T
|
XD1-T
|
|
|
| Generator Differential Protection |
87G |
MRD1-G
|
IRD1-G
|
XD1-G
|
|
|
| Line Differential Protection |
87L |
|
|
XD1-L
|
|
|
| Rotor Earth Fault (DC) |
64 |
MRR1
|
|
XR1
|
|
|
| Auto Reclosing |
79 |
MRK1
|
|
|
|
|
| Trip Circuit Supervision |
74TC |
MRA1
|
|
|
|
|
| Lock Out |
86 |
MRL1
|
|
|
|
|
| Field Failure (impedance) |
40 |
MRQ1
|
|
|
|
|
| Exciter Failure (DC) |
40/76 |
MRR1
|
|
XE2
|
|
|
| Test Blocks |
 |
MRT1
|
|
|
|
|
| Phase Sequence Supervision |
47 |
MRU3
|
|
XU2-AC
|
|
BV1
|
| Speed |
14 |
|
|
|
|
BZ1
|
| Overcurrent & Earth Fault |
50/51/50N/51N |
MRI3-IE
|
|
|
XRI1-IE
|
|
| Directional Overcurrent & Earth Fault |
50/51/67/50N/51N/67N |
MRI3-IR-ER
|
|
|
|
|
| Overcurrent, Earth Fault, CB Failure and Auto Reclose |
50/51/50N/51N/BF/79 |
MRIK3-IE
|
|
|
|
|
| Overcurrent & Earth fault with Thermal Replica |
50/51/50N/51N/49 |
MRI3-ITE
|
|
|
|
|
| Over & Under Voltage & Frequency |
27/59/81 |
|
|
XUF2
|
|
|
| AC Voltage & Negative Sequence |
27/49/47 |
|
|
XUA1
|
|
BUA1
|
| Over & Under Volt. & Freq. with Vector Surge (G59) |
27/59/81/78 |
MRN3-1
|
|
XN2-1
|
XRN2-1
|
BN1
|
| Over & Under Volt. & Freq. with ROCOF (G59) |
27/59/81/78 |
MRN3-2
|
|
XN2-2
|
XRN2-1
|
|
| Motor Protection (multi function) |
37/46/48/49/50/51 |
MRM3
|
|
XM1
|