Specifications

December 2008 Page 14–13
Chapter 14. Protective Relay Interface (PRI/PRS) Module
14
7. Set the Contact Bounce for Trip Input 1 to
1 or 3 ms.
Select either 1 ms or 3ms, as desired.
8. Set the Trip Hold Time and Security Delay
settings for Trip Output 1, per your appli-
cation.
Select the appropriate settings for your appli-
cation.
9. Apply the voltage supply source.
Apply the 48-250Vdc power source, as appro-
priate for the interface keying threshold, and
flip the control switch to key in the input
signal.
10. Record the times and compare to the setting
times.
Using the timer, record the start and stop
times and compute the signal duration.
Compare the duration time to the settings
time. The difference is the channel time it
took to transfer the trip.
11. Repeat Steps 5–10 for each circuit.
Repeat Steps 5–10 for each circuit (i.e., for
each input on the local chassis and each
output on the remote chassis).
12. Reverse the voltage supply source and
timer connections and repeat Steps 5–11.
Disconnect the voltage supply source and the
timer “start” connections from the “local”
chassis and connect them to the same
positions on the “remote” chassis. Likewise,
disconnect the timer “stop” connections from
the “remote” chassis and connect them to the
same positions on the “local” chassis.
13. Lower the keying voltage to verify keying
will not occur for voltages less than approx-
imately 1/2 of nominal.
14.6 Drawings
The schematics for the PRI Module and various
interfaces are available upon request.
The component location drawings for the
PRI/PRS module and interfaces are at the end of
this chapter.
Complete Steps 5–8 for the local chassis and
then repeat for the remote chassis.
NOTE