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18 Cards in this Set
- Front
- Back
|
Differential |
87 |
|
|
instantaneous overcurrent |
50 |
|
|
inverse time over current |
51 |
|
|
distance |
21 |
|
|
overvotage |
59 |
|
|
directional |
32 |
|
|
polar |
36 |
|
|
field relay |
40 |
|
|
volts/hz |
24 |
|
|
directional current relay |
67 |
|
|
reverse phase |
46 |
|
|
density switch |
61 |
|
|
thermal relay |
49 |
|
|
loss of synchronism |
78 |
|
|
frequency relay |
81O/U |
|
|
undervoltage relay |
27 |
|
|
synchronizing or synch check relay |
25 |
|
|
over pressure |
63 |
