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Product Selection Table
Click on the following links to view
technical data.
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|
High
Tech Line |
Professional
Line |
Basic
Line |
|
|
|
| Protection
Function |
ANSI |
MR |
IR |
X |
XR |
B |
| Overcurrent |
50/51 |
|
|
|
|
|
| Directional
Overcurrent |
50/51/67 |
|
|
|
|
|
| Earth
Fault |
50N/51N |
|
|
|
|
|
| Directional
Earth Fault |
67N |
|
|
|
|
|
| Circuit
Breaker Failure Protection |
BF |
|
|
|
|
|
| Voltage
Restrained Overcurrent |
51V |
|
|
|
|
|
| Negative
Sequence (current) |
46 |
|
|
|
|
|
| AC
Under & Over Voltage |
27/59 |
|
|
|
|
|
| Neutral
Voltage Displacement |
59N |
|
|
|
|
|
| DC
Under & Over Voltage |
27DC/59DC |
|
|
|
|
|
| Phase
Balance (voltage) |
47 |
|
|
|
|
|
| Under & Over
Frequency |
81 |
|
|
|
|
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| Vector
Surge |
78 |
|
|
|
|
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| Directional
Power |
32 |
|
|
|
|
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| Transformer
Differential Protection |
87T |
|
|
|
|
|
| Generator
Differential Protection |
87G |
|
|
|
|
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| Line
Differential Protection |
87L |
|
|
|
|
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| Rotor
Earth Fault (DC) |
64 |
|
|
|
|
|
| Auto
Reclosing |
79 |
|
|
|
|
|
| Trip
Circuit Supervision |
74TC |
|
|
|
|
|
| Lock
Out |
86 |
|
|
|
|
|
| Field
Failure (impedance) |
40 |
|
|
|
|
|
| Exciter
Failure (DC) |
40/76 |
|
|
|
|
|
| Test
Blocks |
 |
|
|
|
|
|
| Phase
Sequence Supervision |
47 |
|
|
|
|
|
| Speed |
14 |
|
|
|
|
|
| Overcurrent & Earth
Fault |
50/51/50N/51N |
|
|
|
|
|
| Directional
Overcurrent & Earth Fault |
50/51/67/50N/51N/67N |
|
|
|
|
|
| Overcurrent,
Earth Fault, CB Failure and Auto Reclose |
50/51/50N/51N/BF/79 |
|
|
|
|
|
| Overcurrent & Earth
fault with Thermal Replica |
50/51/50N/51N/49 |
|
|
|
|
|
| Over & Under
Voltage & Frequency |
27/59/81 |
|
|
|
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| AC
Voltage & Negative Sequence |
27/49/47 |
|
|
|
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| Over & Under Volt. & Freq. with Vector Surge (G59) |
27/59/81/78 |
|
|
|
|
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| Over & Under Volt. & Freq. with ROCOF (G59) |
27/59/81/78 |
|
|
|
|
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| Motor Protection (multi function) |
37/46/48/49/50/51 |
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|
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For further assistance and technical advice
to choose the right relay protection, contact
us on 01494 435600
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