Commissioning
330 PRS-7367
• AC input circuits test
• Function tests
These tests are performed for the following functions that are fully software-based. Tests of the
protection schemes and fault locator require a dynamic test set.
• Measuring elements test
• Timers test
• Metering and recording test
• Conjunctive tests
The tests are performed after the relay is connected with the primary equipment and other external
equipment.
• On load test.
• Phase sequence check and polarity check.
10.6 With the Relay Energized
Check that the input range of the external power supply should meet the power requirements of
the "technical data" section within the permissible power supply input voltage range.
Attention! All external circuits connected to the unit must be checked to ensure correct
installation before the unit is powered on or the test procedure started.
10.6.1 LCD Display Check
After the device is powered on, the LCD will be lit. After the device is initialized, if the device is in
normal operation, the LCD displays the status of the main single line diagram.
Attention! If the device is in the alarm state after power-on, the LCD displays the alarm
status information. At this point you can refer to the "Supervision" section to analyze the
cause of the alarm and treatment.
10.6.2 Date and Time
If the time and date is not being maintained by substation automation system, the date and time
should be set manually.
Set the date and time to the correct local time and date using menu item “Clock”.
For devices using IRIG-B (DC) time code and SNTP, IEEE 1588-time synchronization, you can
verify the timing accuracy by modifying the clock setting of the device. For PPM, PPS time
synchronization system, through the time synchronization binary input check.
10.6.3 Light Emitting Diodes (LEDs)
The device has two lights that cannot be defined. the two lights are as follows:
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