Basler BE1-DFPR Instruction Manual Download

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BE1-DFPR Testing

5-19

Settings menu. This disables all other functions from tripping the relay so just the 50T function
can be checked.

Step 16. Connect a current source to any phase current input or the neutral current input.

Step 17. Close the breaker on the test set and wait for the RST LED to illuminate on the relay.

Step 18. Apply an appropriate amount of current to trip the relay and measure the time from when the

current is applied until the Trip 1 contacts close. This timing should be within ±5% or 25 ms of the
time delay setting that is set in the Relay Settings screen (50TP TD for a phase timing and 50TN
TD for a neutral timing).

Step 19. Return to the Tripping Logic screen and return the Trip 1 settings to the desired values. Press

ESC to save the settings, then press ESC again to return to the Review/Edit Settings menu.

27 Timings

Step 20. From the Review/Edit Settings Menu on the terminal, select 2, 5, 8, I, or L to enter the Tripping

Logic screen for the desired settings group.

Step 21. Enter N in all Trip 1 locations except 27/59. Enter Y in the 27/59 location. Press ESC to save

these settings, then press ESC again to return to the Review/Edit Settings menu. This disables
all other functions from tripping the relay so just the 27/59 function can be checked.

Step 22. Connect a voltage source to the phase you wish to check. The other two phases will need to be

connected to a voltage source with a voltage applied that is greater than the 27 setting in the
Normal Mode Settings.

Step 23. Close the breaker on the test set and wait for the RST LED to illuminate on the relay.

Step 24. Step the voltage down on one phase to a point lower than the 27 PU voltage and measure the

time from when the voltage is stepped down until the Trip 1 contacts close. This timing should be
within ±5% or 30 milliseconds, whichever is greater, of the 27 TD setting that is set in the Relay
Settings screen.

Step 25. Return to the Tripping Logic screen and return the Trip 1 settings to the desired values. Press

ESC to save the settings, then press ESC again to return to the Review/Edit Settings menu.

81 Timings

Step 26. From the Review/Edit Settings Menu, select 2, 5, 8, I, or L to enter the Tripping Logic screen for

the desired settings group.

Step 27. Enter a N in all Trip 1 locations except 81. Enter a Y in the 81 location. Press ESC to save these

settings, then press ESC again to return to the Review/Edit Settings menu. This disables all other
functions from tripping the relay so just the 81 function can be checked.

Step 28. Connect the voltage inputs in parallel and connect a frequency source to the voltage inputs. Set

the voltage level to a level greater than the 81 INH setting in the Normal Mode Settings.

Step 29. Close the breaker on the test set and wait for the RST LED to illuminate on the relay.

Step 30. Step the frequency down to a point below the 81 T HZ setting and measure the time from when

the frequency is stepped down until the Trip 1 contacts close. This timing should be within ±10%
or 50 ms of the 81 T TD setting that is set in the Relay Settings screen.