2.6
Writing an application configuration to the IED
Ensure that the IED includes the correct application configuration
according to project specifications.
The application configuration is created using PCM600 and then written to the
IED. Establish a connection between PCM600 and the IED when an application
configuration must be written to IED.
When writing an application configuration to the IED, the IED is automatically set
in configuration mode. When the IED is set in configuration mode, all functions
are blocked. The red Trip LED on the IED flashes, and the green Ready LED is lit
while the IED is in the configuration mode. When the writing procedure is
completed, the IED is automatically set into normal mode.
Be sure to set the correct technical key in IED and PCM600 to
prevent writing an application configuration to the wrong IED.
See the engineering manual for information on how to create or
modify an application configuration and how to write to IED.
Set setting parameters through the LHMI. See the operation manual
for information on how to change a setting from the LHMI.
2.7
Checking CT circuits
The CTs must be connected in accordance with the terminal diagram provided with
the IED, both with regards to phases and polarity. The following tests are
recommended for every primary CT or CT core connected to the IED.
•
Primary injection test to verify the current ratio of the CT, the correct wiring
up to the protection IED and correct phase sequence connection (that is L1,
L2, L3.)
•
Polarity check to prove that the predicted direction of secondary current flow
is correct for a given direction of primary current flow. This is an essential test
for the proper operation of the directional function, protection or measurement
in the IED.
•
CT secondary loop resistance measurement to confirm that the current
transformer secondary loop dc resistance is within specification and that there
are no high resistance joints in the CT winding or wiring.
1MRS756801 A
Section 2
Starting up
630 series
17
Commissioning Manual
