Vanguard CT-3500 - Manual (Page 14)

Model CT-3500

Operating Procedures
10
5.5 Run Test Procedure
Time a breaker by performing the step-by-
step sequence that follows. The Run-Test
Procedure assumes that setups have been
loaded (typically, a one-time test can be
run without such documentation).
The CT-3500 will stamp the date and time
of each test on the record. The user needs
to verify the time and date (displayed at
the top left corner of the CT-3500 LCD)
before test
START-UP MENU
a. Begin the RUN-TEST procedure by
pressing key #1 on the START-UP MENU
(see last illustration). The SELECT TEST
TYPE menu then displays (see below):
b. Press the key for the breaker test to be
timed (listed on the Menu above). An
OPERATE BREAKER prompt will
display. In the example below, the OPEN
test was selected. The test procedure is
shown in steps below.
c. The above display prompts the
operator to activate the breaker for the
selected test (OPEN, CLOSE, OPEN-
CLOSE, or CLOSE-OPEN), in this case,
an OPEN.
When the breaker has operated, the
selected test (also called a “shot”), a date
and time “stamp” displays (see below),
which will link this timing record (if it is
saved) for all future recall references.
d. When date and time of test is noted,
press ENTER to advance to the next
display (timing results of each phase).
Timing results display in both
milliseconds (mS) and decimal parts of a
cycle (CY).
e. After the initial test time is displayed
and observed, press ENTER key to
advance to the next display contact bounce
time
f. When the three-phase bounce time
results display, press ENTER key to
advance to next display. If the timing was
a single stroke, the next display will
prompt: PRINT TEST RESULTS?
1. RUN TEST 05/15/01
2. SETUP 10:28:03
3. CABLE TEST
SELECT TEST TYPE
1. OPEN 2. CLOSE
3. OPEN-CLOSE
4. CLOSE-OPEN
TEST: OPEN
OPEN BREAKER NOW…
OPEN SHOT
07/12/01 15:25:48
OPEN (mS / CYCLES)
A 34.90mS 2.09CY
B 30.39mS 1.81CY
C 33.70mS 2.02CY
OPEN BOUNCE TIME
A: 0.00mS 0.00CY
B 0.00mS 0.00CY
C 0.00mS 0.00CY
PRINT RESULTS?
1. YES
2. NO