Basler Electric BE1-700 - Manual (Page 308)

Just Prior to Energizing - Report Documentation
After completing the previous steps, capture and save a General Status Report by transmitting the RG-
STAT command. This report should be kept in the permanent record file of the device so the data can be
used for comparison in future maintenance procedures.
Also, save the entire settings record for future reference by transmitting the "S" command. Use this record
during the maintenance cycle or during the analysis of an operation to verify that the "as found" settings
are exactly as left during the commissioning process.
Reference: Section 6, Reporting and Alarm Functions, General Status Reporting, for details.
In Service Readings
Just after energizing the equipment, transmit the "M" command to the relay. Use this record to review the
following:
• M-I and M-V to verify VT and CT ratios.
• M-IQ and M-V2 to verify proper phase sequence connections.
• M-SYNC to verify proper phase relationship of VP and VX.
• Anything else that the user might find helpful.
Save this record along with the RG-STAT record mentioned earlier for future reference.
PERIODIC TESTING
Because the BE1-700 has extensive internal test capabilities, periodic testing of the protection system
can be greatly reduced. Relay operating characteristics are a function of programming instructions that do
not drift over time. Thus, the user may wish to verify items that the relay's self-testing features cannot
completely determine. Periodic testing might consist of the following settings and function checks:
• Verify that the set points that were proven during commissioning have not been changed.
• Verify that the inputs and outputs are interfacing properly with the rest of the protection and control
system.
• Verify that the power system analog parameters used by the protection and control functions are
being measured accurately.
Settings Verification
Verification of the relay digital I/O connections can be accomplished in different ways. The method used
depends on your preferences and practices. You might choose to use either of the following two methods:
• Repeat the digital I/O connection and label verification under commissioning tests.
• Monitor SER, Status, and Fault reports for proper sensing of digital signals and proper output tripping
during normal operation.
Analog Circuit Verification
Verification of relay analog measurement circuits can be accomplished in multiple ways and depends on
your preferences and practices. Either of the two following methods might be used:
NOTE
In redundant protection systems where multiple relays will trip a given breaker or
other device for a fault, fault record monitoring may not indicate a failed output
contact. The relay may report that it energized an output when tripping was
actually accomplished by the redundant relay. In this situation, testing the contact
is recommended.
13-12 BE1-700 Testing and Maintenance 9376700990 Rev M