List of ANSI Codes
List of ANSI Codes
EEE C 37.2:2008
ANSI
Functions
14
Underspeed
23
Temperature Protection
24
Overexcitation Protection (Volts per Hertz)
25
Synchronizing or Synchronism-check via 4
th
measuring channel of voltage measurement card
27
Undervoltage Protection
27(t)
Undervoltage (time dependent) Protection
27A
Undervoltage Protection (Auxiliar) via 4
th
measuring channel of voltage measurement card
27N
Neutral Undervoltage via 4
th
measuring channel of voltage measurement card
27TN
Third Harmonic Neutral Undervoltage via 4
th
measuring channel of voltage measurement card
32
Directional Power Protection
32F
Forward Power Protection
32R
Reverse Power Protection
37
Undercurrent / Under Power
38
Temperature Protection (optional via Interface/external Box)
40
Loss of Excitation / Loss of Field
46
Unbalanced Current Protection
46G
Unbalanced Generator Current Protection
47
Unbalanced Voltage Protection
48
Incomplete Sequence (Start-up time Supervison)
49
Thermal Protection
49M
Thermal Motor Protection
49R
Thermal Rotor Protection
49S
Thermal Stator Protection
50BF
Breaker Failure
50
Overcurrent (instantaneous)
50P
Phase Overcurrent (instantaneous)
50N
Neutral Overcurrent (instantaneous)
50Ns
Sensitive Neutral Overcurrent (instantaneous)
51
Overcurrent
51P
Phase Overcurrent
51N
Neutral Overcurrent
51Ns
Sensitive Neutral Overcurrent
51LR
Locked Rotor
51LRS
Locked Rotor Start (during start sequence)
51C
Voltage Controlled Overcurrent (via adaptive Parameters)
51Q
Negative Phase Sequence Overcurrent (multiple trip characteristics)
51V
Voltage Restrained Overcurrent
55
Power Factor Protection
56
Field Application Relay
59
Overvoltage Protection
59TN
Third Harmonic Neutral Overvoltage via 4
th
measuring channel of voltage measurement card
59A
Overvoltage Protection via 4th (Auxiliar) measuring channel of voltage measurement card
59N
Neutral Overvoltage Protection
60FL
Voltage Transformer Supervision
60L
Current Transformer Supervision
64R
Rotor Earth Fault Protection
64REF
Restricted Ground Fault Protection
66
Starts per h (Start Inhibit)
67
Directional Overcurrent
648
MRU4
DOK-HB-MRU4-2E