Reclosing Sequence Test - ABB DPU 1500R Instruction Book

ABB Distribution Protection Unit 1500R

Reclosing Sequence Test

Follow these steps to test the reclosing sequence:
1. Change the Primary Settings.
a. Press the "E" key.
b. Scroll to "Settings" and press "E."
c. Scroll to "Change Settings" and press "E."
d. Scroll to "Prim Settings" and press "E."
e. Enter the password (four spaces for default) and press "E."
f. Scroll down to each of the following and change the value as necessary by using the right arrow key. Verify
or change the following PRIMARY settings for this test:
50P-1 (3I>>1) Curve
50P-1 (3I>>1) PickupX
2-Phase 50P (3I>>)
79 (O->I) Reset Time
79-1 (O->I1) Select
79-1 (O->I1) Open Time
79-2 (O->I2) Select
79-2 (O->I2) Open Time
79-3 (O->I3) Select
79-3 (O->I3) Open Time
79-4 (O->I4) Select
79-4 (O->I4) Open Time
79-5 (O->I5) Select
79-5 (O->I5) Open Time
Trip Fail Time
g. Press "E" when the value you want is displayed.
h. Press "C" twice.
i. Press the right arrow key to "Yes" and press "E" to save settings.
2. Set the relay to Functional Test Mode. This eliminates the need for a breaker.
a. Press the "E" key to access the Main Menu.
b. Scroll to "Test" and press "E."
c. Scroll to "Func. Test Mode" and press "E."
d. Enter the password (four spaces for default) and press "E."
e. Press right arrow key to "Yes" and press "E."
f. The DPU1500R will remain in the Functional Test Mode for 15 minutes, unless reset.
3. Test the Recloser Lockout function.
a. Connect the DPU1500R as shown in Figure 11-5.
b. Apply a fault current of 12 A to the relay. Once the relay has tripped, it remains open according to the settings
in Step 1f; then the relay should reclose. Be sure the current is removed within the "Trip Fail Time" setting in
the configuration settings.
c. Before the reset time of the relay has expired, apply a subsequent fault current. The relay will trip and
reclose.
d. Continue to apply the fault until Recloser Lockout occurs. This should be on the fourth trip.
11-12
= Standard
= 1.0
= Disable
= 10 seconds
= 50P-1 (3I>>1), 51N (IN>), 50N-1 (IN>>1) enabled
= 0.3 seconds
= 50P-1 (3I>>1), 51N (IN>), 50N-1 (IN>>1)enabled
= 10 seconds
= 50P-1 (3I>>1), 51N (IN>), 50N-1 (IN>>1) enabled
= 15 seconds
= 50P-1 (3I>>1), 51N (IN>), 50N-1 (IN>>1) enabled
= 15 seconds
= 50P-1 (3I>>1), 51N (IN>), 50N-1 (IN>>1) enabled
= LOCK
= 18 cycles
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Maintenance and Testing