Basler BE1-11m, Instruction Manual

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9424200996 68-1
BE1-11 m Loss of Excitation - Reverse Var Based (40Q) Test
68 • Loss of Excitation - Reverse Var
Based (40Q) 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 BE1-11
m 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 BE1-11 m 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 BESTCOMS Plus
®
to open the BESTlogic
™
Plus
Programmable Logic screen and click the Clear button located on the toolbar. After new BESTlogic Plus
settings are made, click the Save button located on the toolbar to compile BESTlogic Plus . Upload
BESTlogic
Plus
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
Loss of Excitation - Reverse var Based (40Q) Protection chapter for more information on this
function.
Functional Test Procedure
Pickup Verification
Step 1: Use BESTCOMS Plus to send the operational settings in Table 68-1 to the BE1-11 m . Reset all
targets.
Table 68-1. Operational Settings
Setting Value BESTCOMS Plus Screen Description
Phase VT Ratio 1 System Parameters, Sensing Transformers Sets phase VT ratio to 1
Phase VT
Connection
4W-Y System Parameters, Sensing Transformers Sets phase VT
connection to 4W-Y
Phase CT Ratio 1 System Parameters, Sensing Transformers Sets phase CT ratio to 1
Element Mode Enabled Protection, Power, Loss of Excitation -
Reverse Var Based (40Q)
Enables 40Q function
Time Delay 0 Protection, Power, Loss of Excitation -
Reverse Var Based (40Q)
Sets time delay to 0
seconds.
40Q Enabled Target Configuration, Targets Enables target for 40Q