Eaton Cutler-Hammer Digitrip RMS 510 - Digitrip RMS Self-Testing System; Self-Testing; Digitrip RMS 810 & 910 PT Module

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Page 39
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