Arteche smART P500, Instruction Manual

Page: 79 / 562

1BPROTECTION FUNCTIONS
PROTECTION, CONTROL AND METERING FUNCTIONS
The relay trips t seconds after the pickup setting value is exceeded, t being the
Definite Time setting for this function.
Figure 2-14 shows the logical diagram for the open phase protection.
Figure 2-14 Open phase protection
2.1.6.2. SETTING RANGES (6 GROUPS)
The settings for these functions are shown in Table 2-10
Setting Minimum Maximum Step Notes
Enable YES/NO
Pickup 0,10 0,50 0,01
Ratio
I
I
2
1
Definite time (s) 0,05 300 0,01
Table 2-10 Settings range for the open phase protection
2.1.7. OVERVOLTAGE PROTECTION
2.1.7.1. GENERAL DESCRIPTION (59)
Three unit Overvoltage protection with 4 steps. In each step, the protection element is
activated if the voltage level of any phase with respect the neutral (Van, Vbn, Vcn) is
Trip
blkAnyProt
+
-
blk46OP
Recloser Blocking
A
B
C
1
2
Sequence
Calculation
I
A
I
B
I
C
/
r46OPPkup
r46OPTrip
I
1
I
2
Def. Time
0