ABB 615 Series ANSI, Техническое руководство

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1MAC050144-MB C
Section 4
Protection functions
615 series ANSI 235
Technical Manual
27 prevents sensitive equipment from running under conditions that could cause
overheating and thus shorten their life time expectancy. In many cases, 27 is a useful
function in circuits for local or remote automation processes in the power system.
4.2.2.7 Signals
Table 231: 27-1/2 Input signals
Table 232: 27-1/2 Output signals
4.2.2.8 Settings
Table 233: 27-1/2 Group settings
Name Type Default Description
V_A_AB SIGNAL 0 Phase to ground voltage A or phase to phase voltage AB
V_B_BC SIGNAL 0 Phase to ground voltage B or phase to phase voltage BC
V_C_CA SIGNAL 0 Phase to ground voltage C or phase to phase voltage CA
BLOCK BOOLEAN 0=False Block signal for activating the blocking mode
Name Type Description
TRIP BOOLEAN Trip
PICKUP BOOLEAN Pickup
Parameter Values (Range) Unit Step Default Description
Pickup value 0.05...1.20 xVn 0.01 0.90 Pickup value
Time multiplier 0.05...15.00 0.05 1.00 Time multiplier in IEC/ANSI IDMT curves
Trip delay time 60...300000 ms 10 60 Trip delay time
Operating curve type 5=ANSI DT
15=IEC DT
21=Inv. Curve A
22=Inv. Curve B
23=Programmable
5=ANSI DT Selection of time delay curve type
Type of reset curve 1=Immediate
2=Def time reset
-1=DT Lin decr rst
1=Immediate Selection of reset curve type