ELECTRICAL ANSI CODE

Posted by adhi wahyudy on Thursday, 11 February 2010

12   ———  Overspeed (2 set points)
14   ———  Underspeed (2 set points)
21B ———  Underimpedance
24   ———   Overfluxing (V/Hz)
25   ———   Synch-check


26/63 ———  Thermostat / Buchholz
27/27S ———  Undervoltage (L-L/L-N)
27D ———  Positive-sequence undervoltage
27R ———  Remanent undervoltage
30 ———  Annunciation
32P ———  Directional real overpower
32Q/40 ———  Directional reactive overpower
37 ———  Phase undercurrent
37P ———  Directional active underpower
38/49T ———  Temperature monitoring
40 ———  Field loss (underimpedance)
46 ———  Unbalance/negative sequence
47 ———  Negative sequence overvoltage
48 ———  Excessive starting time
49 ———  RMS Thermal overload
50/27 ———  Inadvertent energization
50/51 ———  Phase overcurrent
50BF ———  Breaker failure
50G/51G ———  Ground sensitive
50N/51N ———  Ground fault
50V/51V ———  Voltage restrained overcurrent
51C ———  Capacitor bank unbalance
51LR ———  Locked rotor
59 ———  Overvoltage (L-L or L-N)
59 ———  Overvoltage (L-L)
59N ———  Neutral voltage displacement
60/60FL ———  CT/VT supervision

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