Hubbell Versa-Tech I - Figure 7-2 Recloser Attached to High Current Test Set

PSP8620311
Rev. E
43
7 — Testing
Minimum Trip Current Test
The minimum trip current test can be used
to check programmed minimum trip settings
as well as recloser control functionality.
1. Close the recloser contacts.
2. Connect a low voltage high current test
set across the contacts by attaching one
end of the test set to each of the 2-hole
NEMA input pads (see Figure 7-2).
3. Ensure both ends have adequate
electrical clearance from each other and
from any ground.
4. Attach an ammeter to monitor the current
into the recloser. Slowly increase the
current. Note and compare the ammeter
reading when the recloser trips to the
programmed minimum trip value.
Figure 7-2 Recloser attached to high current test set
Sequence of Operation Test
The sequence of operation test can be
used to check the programmed number
of fast and delayed trip settings as well as
operations to lockout:
1. Close the recloser contacts.
2. Connect a low voltage high current
test set across the closed contacts by
attaching one end of the test set to each
of the 2-hole NEMA input pads (see
Figure 9-2).
3. Ensure both ends have adequate
electrical clearance from each other and
from any ground.
4. Attach an ammeter to monitor the
current into the recloser. Apply a test
current above the minimum trip value
and compare recloser response to
programmed settings.
High Current
Test Set
Ammeter