Eaton Cutler-Hammer Digitrip RMS 510 Instructions Manual page 36

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8,5
Primary Injection Testing
I
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PRIMARY INJEGTION TESTING CAUSES HEAT-
ING OF CIRCUIT BREAKER AND RETROFIT
COMPONENTS. FAILURE TO STOP THE TESTS
WHEN INSTRUCTED WILL CAUSE SERIOUS
DAMAGE TO BOTH THE BREAKER AND
RET-
ROFIT COMPONENTS.
Primary lnjection verifies the complete Breaker
Overcurrent Protection System, including the
Current Sensors, Rating Plug, Trip Unit, and the
interconnecting wiring. lt involves the use
of a
tester (e.g.: Multi-amp Tester or
EIL)
to inject single
phase primary current through the Breaker to test
the Digitrip RMS Overcurrent Trip System.
When testing on Breakers with Current Limiters,
the Cunent Limiters should be removed and
replaced by copper shorting bars during testing.
Failure
to do so could
result in compromising the
expected performance of the Current Limiters. The
Current Limiters must be reinstalled after testing
is
completed.
lf all of the tests from Table 8-1 yield correct
results, the Trip Unit is functioning properly. lf any
difiiculties are
encountered during testing, please
call Cutler-Hammer at
1
-800-937-5487.
A.
8.5.1
Primary lnjection Test Procedures
Prior
to Primary lnjection Testing;
.
Defeat Zone lnterlocks;
.
Defeat Unpowered Thermal Memory;
.
Defeat Ground Fault trip function; and
.
Use
Auxiliary Power.
During Primary lniection Testing:
.
Reset the Trip Unit;
.
Reset the Trip
Settings
(see Table 8-1);
o
Close
the
Breaker;
.
Conduct the test
(see Table 8-1);
o
Abort the Test
(see Table 8-1); and
o
Record the Test Results.
- Compare the actual results with the
expected test results
in Table 8-1
.
-
61
0, 810,
& 910 Trip Units
will display
the elapsed time of the test and then
display the cause of TriP Code.
-
Press
the Step button to view the test
current magnitude after each test.
-
Permanently record the results
to verify
calibration of the
TriP SYstem.
After Primary lniection Testing:
o
Reset the Trip Unit;
.
Confirm the Breaker Status; and
Confirm the Ground Fault Trip Function is
activated.
Etfective 9/01
ElT.il