MiCOM Transformer Applications
MiCOM Transformer Applications
 P631 / P632 / P633 / P634 / P642 / P643 / P645 |
Easergy™ MiCOM P63x and P64x Transformer Differential Protection and Control Devices are designed for fast, selective, short-circuit protection of transformers, motors, generators and other installations.
Models available:
-
Easergy MiCOM P631
-
Easergy MiCOM P632
-
Easergy MiCOM P633
-
Easergy MiCOM P634
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Easergy MiCOM P642
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Easergy MiCOM P643
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Easergy MiCOM P645
These devices also incorporate many supplementary protective backup functions.
Functions available for the different models of the Transformer protection MiCOM range of relays
|
ANSI |
Protection Function |
P631 | P632 | P633 | P634 | P642 | P643 | P645 |
|---|---|---|---|---|---|---|---|---|
|
24 |
Overexcitation |
● |
● |
● |
● |
● |
● |
|
|
46 |
Negative sequence overcurrent |
● |
● |
● |
● |
● |
● |
● |
|
47 |
Negative sequence over voltage |
● |
● |
● |
||||
|
49 |
Thermal overload |
● |
● |
● |
● |
● |
● |
● |
|
50/51N |
Ground fault |
● |
● |
● |
● |
● |
● |
● |
|
50/51P |
Phase overcurrent |
● |
● |
● |
● |
● |
● |
● |
|
50BF |
Circuit breaker failure |
● |
● |
● |
● |
● |
● |
● |
|
59/27 |
Under / Over voltage |
● |
● |
● |
● |
● |
● |
|
|
67N |
Ground fault directional |
● |
● |
● |
||||
|
67P |
Phase directional |
● |
● |
● |
||||
|
81 |
Under / over frequency |
● |
● |
● |
● |
● |
● |
|
|
87G/64 |
Restricted ground fault |
2 | 3 | 3 | 2 | 3 | 3 | |
|
87T |
Transformer differential (windings) |
2 | 2 | 3 | 4 | 2 | 3 | 3 |
|
CTS |
Current transformer (CT) supervision |
● |
● |
● |
● |
● |
● |
● |
|
TCS |
Trip current supervision |
● |
● |
● |
● |
● |
● |
● |
|
VTS |
Voltage Transformer (VT) supervision |
● |
● |
● |
||||
|
2nd harmonic restraint |
● |
● |
● |
● |
● |
● |
● |
|
|
Overfluxing / 5th harmonic |
● |
● |
● |
● |
● |
● |
● |
Typical Catalog Numbers
| Catalog Number |
Description |
|
|---|---|---|
|
Basic |
P64221RABM0B48L |
Series 40 - Transformer differential (2 sets of CT's) Protection, P642 (48-110Vdc), 1/5A CT inputs, 8In/8Out (user configurable voltage thresholds), 3xRJ-45, IEC61850, DNP3 |
|
Standard |
P64321RABM0B48M |
Series 40 - Transformer differential (3 sets of CT's) Protection, P643 (48-110Vdc), 1/5A CT inputs, 16In/16Out (user configurable voltage thresholds), 3xRJ-45, IEC61850, DNP3 |
|
Advanced |
P64521RABM0B48M |
Series 40 - Transformer differential (5 sets of CT's) Protection, P645 (48-110Vdc), 1/5A CT inputs, 16In/16Out (user configurable voltage thresholds), 3xRJ-45, IEC61850, DNP3 |