Fault Trip Annunciators; How To Use The "External Monitor - GE MicroVersaTrip TVTS1 Manual

Test set
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Procedure
Position Test Set Controls'
TEST SELECTOR-Components Tests.
COMPONENT TEST SELECTOR-Sensor Continuity
SEQUENCE SWITCH-A
Connect for Mode 2 testing (see Page 7).
2.
Ensure all power is removed from the circuit breaker
and that the Micro-VersaTrip·' Test Set interface module is
connected between the circuit breaker and test set.
LEVEL INSTANTANEOUS function is present
(see Page 14).
Fault Trip Annunciators
As an optional accessory, programmers may be equipped
with, pop-out type, fault trip annunciators.
3. Push the PUSH-TO-TEST button. The OK light must
light while the PUSH-TO-TEST button is depressed. Absence
of the OK light indicates a high resistance or open circuit in
the CT or wiring harness. The PUSH-TO-TEST button must
be released between tests.
In operation, these annunciators pop out each time their
respective trip element delivers a trip Signal. If a program-
mer trips on L T overload, only that indicator is activated. For
short circuits, a single indicator serves both the ST and
INST elements and is activated by either. The
GF
indicator
responds only to a ground fault trip.
When testing programmers so equipped, the trip annun-
ciators are functioning properly if they are activated each
time their respective trip element trips.
Important Note- There will be no OK light on
se-
quence positions: F, G, H unless the HIGH
Table 9-How to Use the "External Monitor"
Test Set Settings
Pro-
Pro-
grammer
grammer
Output (
±
3'%)
Waveform
Test
Current
Type
Per Unit (1.00)
(For Reference
Selector
Setting
Switch
Test Current
Only)
Comments
1.0
1-241 Vdc
PRESET
I
1 LONG TIME!
0.95
,.170Vdc
Valid only
CURRENT
DC oulpul
Note that the values shown in the OUTPUT COLUMN
090
1.1 00 Vdc
with PRE-
ai
sho ... "
apply only with the PRESET CURRENT control de-
SHORT TIME
actuated
I
Standard and
0.85
1.029 Vdc
SET CUR·
pressed
0.80
-
0.958 Vdc
RENT
Zone Inter-
0.70
0.817 Vdc
button de-
STARTbulton ~
SHORT TIME
-l
I,me
d"la~
r-
locked
060
0676 Vdc
pressed.
OELAY
I I
DC
"'u~~1
!
activated . .
~
0.50
0.S34 Vdc
(Test Runnmg)
a, sM ... n
SI~'1
T,,~
2
lNSTAN
o
283V PEAK
Waveform is a half sine with a rep rate of appro)(j-
TANEOUS
A
o
566V PEAK
mat ely one pulse every 200 milliseconds. OUTPUT ap-
a. Standard
B
(See Comments)
plies with the proper programmer (Type A or B)
Hall Sine
Wil~e
connected
ThiS function uses the same circuit as the LONG
b. Hrgh Level
NO OUTPUT
NO OUTPUT
TIME/SHORT TIME. When the L TIST is calrbrated. lhe
HIGH LEVEL INSTANTANEOUS is also calibrated
t:::--
T,
=:;-l
Sm"
wm
A programmer must be connected to the Test Set to
3 GROUND
A
O.200V rms
obtain TEST CURRENT. Any Micro-VersaTflp· pro-
FAULT
B
O.400V rrllS
~tlme'T_1
grammer
With
the GF function may be used (either
delay
I
H
I , m e -
'"
O.OJ
j
001
sec
Type A or 8)
Output depends on programmer type. For Type A
4 CONVERTER
DC voltage, DC voltmeter
programmers, the output should be apprO)(
CHECK
input resistance must be
O.SOO Vdc: for Type S, 0.250 Vdc at a meter setting of
greater than 10 megs.
15.00 (values for reference only). A programmer
must be connected to the Test Set
5. COMPONENT
TESTS
a
Short Time
Zone
I
~PP'D'
-~
Applicable only when the ZONE INTERLOCK function
Transmit
28 Vdc
is present in the programmer. The waveform applies
OB5V or less
0'
!
during a trip condition.
Ground Fault
Zone
Transmit
A programmer must be connected. For T4VT pro-
-
Must be tess than 4V peak
grammers, a Mode ··2·· connection must be made (See
b. Open Diodes
IYYYY1
Page 7)
120 Hz
Indeterminate waveform
A programmer must be connected, for T4VT program-
c. Short Diodes
must be less than 4V peak
mers. a Mode· 2 connection must be made (See Page
7).
DC resistance of curren! sensor and wirrng
R,"
d Sensor
Jv, Mu,1 be Ie"
R,
909V,
Requires a Mode ··2··
Continuity
th<ln 4 Vdc
( :. 10°/
0)
0
connection
14.4-Vs
(See Page 11
~.
20

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