Basler Electric BE1-11m - Manual (Page 355)

9424200996 Rev L 343
Pickup Verification (I2 Mode)
Step 1: Use BESTCOMSPlus to send the operational settings in Table 137 to the BE1-11m. Reset all
targets.
Table 137. Operational Settings (I2 Mode)
Setting Value BESTCOMSPlus Screen Description
Phase CT
Ratio 1 System Parameters, Sensing
Transformers Sets phase CT ratio to 1
Element
Mode I2 Protection, Current,
Instantaneous Overcurrent (50-1) Enables 50-1 function for I2 mode
Source CT Circuit 1 Protection, Current,
Instantaneous Overcurrent (50-1) Selects CT circuit 1 as the source
50-1 Neg
SEQ Enabled Target Configuration, Targets Enables Neg SEQ target for 50-1
Step 2: Use BESTCOMSPlus to configure the BESTlogicPlus programmable logic shown in Figure 255.
•
Blocking is disabled.
•
OUT1 closes for 50-1 Trip.
•
OUT2 closes for 50-1 Pickup.
•
Fault recording is enabled.
Figure 255. BESTlogicPlus Settings (I2 Mode)
Step 3: Use BESTCOMSPlus to open the Protection, Current, Instantaneous Overcurrent (50-1) screen
and send the low range test settings (minimum pickup setting) to the BE1-11m for your sensing
input type in Table 138.
Table 138. Pickup Test Settings (I2 Mode)
Sensing Input Type Range Pickup Setting Time Delay
5 A
Low 0.5 A 0 ms
Middle 5.0 A 0 ms
High 9.0 A 0 ms
1 A
Low 0.1 A 0 ms
Middle 1.0 A 0 ms
High 1.8 A 0 ms
Step 4: Prepare to monitor the 50-1 function operation. Operation can be verified by monitoring OUT2
(see Figure 255).
Step 5: Connect a current source to terminals D1 and D2 (A-phase). For a single-phase input test, I2 =
Ia / 3. Therefore, the BE1-11m 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
BE1-11m Instantaneous Overcurrent (50) Test