Sel 2414 - Page 229

10.7
Date Code 20130214 Instruction Manual SEL-2414 Transformer Monitor
Testing and Troubleshooting
Functional Testing
Step 15. If you are using the neutral CT, apply a single-phase current
(A-Phase) to the IN terminals. Do not apply voltage.
Step 16. Verify that the device is measuring the magnitude and phase angle
correctly.
Step 17. Verify control input connections. Using the front-panel MAIN >
TARGETS > ROW commands, check the control input status in
the device. As you apply rated voltage to each input, the position
in Row 48 corresponding to that input should change from zero (0)
to one (1).
Step 18. Verify output contact operation by asserting each output using the
PULSE command. Make sure that each contact closure does what
you want it to do in the annunciation, control, or trip circuit
associated with that contact closure.
Step 19. Use the serial port commands in Table 10.5 to clear the device data
buffers and prepare the device for operation. This prevents data
generated during commissioning testing from being confused with
operational data collected later.
Step 20. Remove all injection set connections and connect the device for
duty.
The SEL-2414 is now ready for continuous service.
Figure 10.4 Three-Phase Open-Delta AC Connections
Table 10.5 Serial Port Commands That Clear Device Data Buffers
Serial Port Command Task Pe r form e d
SER C Resets SER buffer
HIS C Clears/resets the event history and all corresponding event
reports from nonvolatile memory
60˚
V
AB
V
CB
PHROT = ABC
60˚
V
AB
V
CB
PHROT = ACB
When setting PHROT = ABC, set angle I
a
= 0˚
set angle I
b
= –120˚
set angle I
c
= 120˚
set angle V
ab
= +30˚
set angle V
cb
= +90˚
set angle I
a
= 0˚
set angle I
b
= 120˚
set angle I
c
= –120˚
set angle V
ab
= –30˚
set angle V
cb
= –90˚
When setting PHROT = ACB,