| Reverse power |
2 |
32R |
<200 ms |
| Fast over-current |
2 |
50P |
<40 ms |
| Over-current |
4 |
50TD |
<200 ms |
| Voltage dependent over-current |
1 |
50V |
|
| Over-voltage |
2 |
59 |
<200 ms |
| Under-voltage |
3 |
27P |
<200 ms |
| Over-frequency |
3 |
81O |
<300 ms |
| Under-frequency |
3 |
81U |
<300 ms |
| Unbalanced voltage |
1 |
47 |
<200 ms |
| Unbalanced current |
1 |
46 |
<200 ms |
| Loss of excitation or reactive power import |
1 |
32RV |
<200 ms |
| Over-excitation or reactive power export |
1 |
32FV |
<200 ms |
| Overload |
5 |
32F |
<200 ms |
| Inverse time earth over-current |
1 |
50G |
<100 ms |
| Inverse time neutral over-current |
1 |
50N |
<100 ms |
| Emergency stop |
1 |
|
<200 ms |
| Low auxiliary supply |
1 |
27DC |
|
| High auxiliary supply |
1 |
59DC |
|
| Breaker 1 (CB1) external trip |
1 |
|
|
| Breaker 2 (CB2) external trip |
1 |
|
|
| BTB breaker external trip |
1 |
|
|
| Synchronisation failure alarms |
|
|
|
| Breaker open failure |
1/breaker |
52BF |
|
| Breaker close failure |
1/breaker |
52BF |
|
| Breaker position failure |
1/breaker |
52BF |
|
| Close before excitation failure |
1 |
|
|
| Phase sequence error |
1 |
47 |
|
| Hz/V failure |
1 |
|
|
| Not in Auto |
1 |
|
|
| Positive sequence (mains) voltage low |
1 |
27 |
<60 ms |
| Directional over-current |
2 |
67 |
<100 ms |
| Negative sequence voltage high |
1 |
47 |
<400 ms |
| Negative sequence current high |
1 |
46I2 |
<400 ms |
| Zero sequence voltage high |
1 |
59U0 |
<400 ms |
| Zero sequence current high |
1 |
50I0 |
<400 ms |
| Power-dependent reactive power |
1 |
40 |
- |
| IEC/IEEE inverse time over-current |
1 |
51 |
- |