Basler BE1-11g Instruction Manual page 468

456
Pickup Verification (I2 Mode)
Step 1: Use BESTCOMSPlus to send the operational settings in Table 204 to the BE1-11g. Reset all
targets.
Setting Value
Phase CT 1
Ratio
Element I2
Mode
Source CT Circuit 1
51-1 Neg Enabled
SEQ
Step 2: Use BESTCOMSPlus to configure the BESTlogicPlus programmable logic shown in Figure 304.
•
Blocking is disabled.
•
OUT1 closes for 51-1 Trip.
•
OUT2 closes for 51-1 Pickup.
•
Fault recording is enabled.
Step 3: Use BESTCOMSPlus to open the Protection, Current, Inverse Overcurrent (51-1) screen and
send the low range test settings (minimum pickup setting) to the BE1-11g for your sensing input
type in Table 205.
Sensing Input
Type
5 A
1 A
Step 4: Prepare to monitor the 51-1 function operation. Operation can be verified by monitoring OUT2
(see Figure 304).
Step 5: Connect a current source to terminals D1 and D2 (A-phase). For a single-phase input test, I2 =
Ia / 3. Therefore, the BE1-11g should pick up at a value of three times the setting value when
applying only a single-phase input. For example, to determine the pickup current value required
Inverse Overcurrent (51) Test
Table 204. Operational Settings (I2 Mode)
BESTCOMSPlus Screen
System Parameters, Sensing
Transformers
Protection, Current, Instantaneous
Overcurrent (51-1)
Protection, Current, Instantaneous
Overcurrent (51-1)
Target Configuration, Targets
Figure 304. BESTlogicPlus Settings (I2 Mode)
Table 205. Pickup Test Settings (I2 Mode)
Range Pickup Setting
Low 0.5 A
Middle 5.0 A
High 9.0 A
Low 0.1 A
Middle 1.0 A
High 1.8 A
9424200994 Rev N
Description
Sets phase CT ratio to 1
Enables 51-1 function for I2
mode
Selects CT circuit 1 as the
source
Enables Neg SEQ target
for 51-1
Time Dial Time Curve
0
0
0
0
0
0
I2
I2
I2
I2
I2
I2
BE1-11g