Digitrip Rms Self-Testing System; Self-Testing; Digitrip Rms 810 & 910 Pt Module - Eaton Cutler-Hammer Digitrip RMS 510 Instructions Manual

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8.6
Digitrip
RMS
Self-Testing System
I
wnnrurnc
USE OF THE DIGITRIP RMS SELF-TEST
SYSTEM, WHILE THE BREAKER IS IN THE
"CONNECTED" POSITION IN THE
SWITCHGEAR CELL COMPARTMENT, IS NOT
RECOMMENDED. THE TRIPPING ACTION OF
THE CIRCUIT BREAKER WILL CAUSE DISRUP.
TION OF SERVICE CAUSED BY UNNECESSARY
SWITCHING OF CONNECTED EQUIPMENT.
TESTING SHOULD ONLY BE PERFORMED
WHEN THE BREAKER IS LEVERED TO THE
"TEST", "DISCONNECTED",
OR'REMOVED"
POSITIONS. FAILURE TO COMPLY WITH
THESE RECOMMENDATIONS COULD RESULT
IN
INJURY
DEATH,
AND
/
OR EQUIPMENT
DAMAGE.
All Digitrip RMS
1O-Series
and
10O-Series Trip
Units are equipped with self-testing capability as
standard.
The "Test Amps" settings are 1,
2,3,
6T,
8,
10,
GFT, and GE each
multiplied by the ln rating.
The Breaker will only trip when the
(6T and GFI-)
settings are used.
The
test
is
started by pushing and then releasing
the Test push button. The Trip Unit will test itself
based on the Test and Time Overcurrent settings
selected, lighting the appropriate "Mode of Trip"
LED.
lf all of the tests from Table 8-2 yield correct
results, the Trip Unit
is
functioning properly. lf any
difflculties
are encountered during
testing, please
call Cutler-Hammer at 1-800-937-5487.
A.
8.6.1
Self-TestingProcedures
Prior to Self-Testing:
.
Defeat Zone lnterlocks;
.
Defeat Unpowered Thermal Memory; and
.
Use Auxiliary Power.
During Self-Testing:
.
Reset
the Trip Unit;
.
Reset the Trip
Settings (see Table 8-2);
o
Close the Breaker;
.
Conduct the test (see Table 8-2);
.
Abort the Test
(see Table 8-2); and
.
Record the Test Results.
-
Compare actual results with the
expected test results
in
Table 8-2.
-
61
0, 810,
&
91
0 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
Self-Testing:
.
Reset
the Trip Unit; and
.
Confirm the Breaker Status.
c.
Effective 9/01
E:T.il