Distance (21) Test; Pickup Verification - Basler BE1-11g Instruction Manual

9424200994 Rev U

Distance (21) Test

Functional testing is a way to assess this protection system's suitability for your application. Functional
testing goes beyond the more basic tests found in acceptance testing, but lacks the detailed function
testing that is part of the commissioning process.
Test each of the following functions to verify that this BE1-11g measures accurately, is within specified
tolerances, and operates correctly. These tests are also suitable for assisting in systematic
troubleshooting in the event that an operation is questioned. Revisiting the test of a specific function can
help verify whether the BE1-11g is operating within specified tolerances. For further assistance, contact
Basler Electric, Technical Sales Support.
Refer to the Terminals and Connectors chapter for terminal locations and connections.
Reset all targets prior to each test by navigating to the Metering > Status > Targets screen and pressing
the front-panel Reset key. Enter the appropriate username and password if prompted. Clear all logic prior
to each test by using the Settings Explorer in BESTCOMSPlus® to open the BESTlogic™Plus
Programmable Logic screen and click the Clear button located on the toolbar. After new BESTlogicPlus
settings are made, click the Save button located on the toolbar to compile BESTlogicPlus. Upload
BESTlogicPlus settings by selecting Upload Logic to Device from the Communication pull-down menu.
Operational settings can be sent by selecting Upload Settings to Device from the Communication pull-
down menu or by clicking the Send Settings button on the toolbar.
The actual operating time of an output contact is equal to the recognition time plus the time delay setting
(accuracy) plus 6 milliseconds. Output contact operating time depends upon the type of test set used and
its operating characteristics.
A Functional Test Report is included at the end of this chapter. It should be used to record the results and
verify pickup and timing accuracy.
Refer to the Distance (21) Protection chapter for more information on this function.

Pickup Verification

Step 1: Use BESTCOMSPlus to send the operational settings in Table 235 to the BE1-11g.
Setting
CT Circuit 1, Phase
CT Ratio
CT Connection
Phase VT Ratio
Element 21-1 Mode
Use Delta/Wye
Compensation
Diameter (ohm)
Time Delay (ms)
Torque Angle
(degrees)
Offset (ohm)
BE1-11g
Table 235. Operational Settings
Value BESTCOMSPlus Screen
1 System Parameters, Sensing
Transformers
WYE System Parameters, Sensing
Transformers
1 System Parameters, Sensing
Transformers
Enabled Protection, Impedance,
Distance (21)
Unchecked Protection, Impedance,
Distance (21)
15.0 Protection, Impedance,
Distance (21)
100 Protection, Impedance,
Distance (21)
45 Protection, Impedance,
Distance (21)
–5.0
Protection, Impedance,
Distance (21)
Description
Sets phase CT ratio to 1
Sets phase CT connection to
WYE
Sets phase VT ratio to 1
Enables 21-1 element
Disables Delta/Wye
compensation
Sets the reach to 15 Ω
Sets the definite time delay to
100 ms
Sets the characteristic angle of
the system to 45°
Sets the offset to –5 Ω
Distance (21) Test
519