GE EPM 3000P - Manual (Page 34)

CHAPTER 8
P
ROGRAMMING
GROUP 1
8.1 S CALE S ELECTIONS AND F ULL S CALE S ETTINGS
Programming GROUP 1 functions provide a selection of Full Scale Settings to accommodate the different CT’s and
PT’s. The decimal point may be positioned for maximum resolution. The user can perform Scale Selection in each
function. The site technician has a choice of Full Scale selection between volts and kilovolts or amps and kiloamps.
NOTE: D UE TO THE RESOLUTION CAPABILITY , READINGS OVER 2000 COUNTS RESULT IN A LESS STABLE MEASUREMENT .
Ö Tables 8-0 and 8-1 contain Full Scale settings for typical voltages and currents (PT and CT arrangements):
T ABLE 8-0
INPUT VOLTAGE PT RATIO FULL SCALE
120/208V 1:1 (D IRECT ) 120V
120/208V 4:1 480V
120/208V 12:1 1.44KV
277/480V (S UFFIX G) 1:1 (D IRECT ) 300V
T ABLE 8-1
INPUT CURRENT CT TYPE FULL SCALE
0 - 5A N ONE 5.00A
0 - 1000A 1000/5 1000A
0 - 5000 A 5000/5 5.00KA
T ABLE 8-2: G ROUP 1 P ROGRAMMING F ORMAT
FUNCTION NUMBER FUNCTION
0. Full Scale Selection for Volts
1. Full Scale Selection for Amps
E. Exit Programming GROUP 1
8.2 G ROUP 1, F UNCTIONS 0-1: F ULL S CALE S ETTINGS , V OLT & A MP C HANNELS , V OLT & A MP D ECIMAL
P LACEMENT
Ö To change the VOLT OR AMP FULL SCALE settings (Function 0 and 1, respectively), follow these steps:
NOTE: PRESS MAX/MIN/LIMITS, AT ANY TIME, TO CANCEL BEFORE STORING THE LAST DIGIT OR SWITCH.
MAX
AC VOLTS
A B C N
AC AMPS
MAX/MIN
LIMITS
VOLTS PRINT
PROG PHASE
NEXT
I.
AMPS
B C A I I I
A B C
N N N I I I
A B C
LM2 LM1 MIN
MAX
AC VOLTS
A B C N
AC AMPS
MAX/MIN
LIMITS
VOLTS PRINT
PROG PHASE
NEXT
I0.
AMPS
B C A I I I
A B C
N N N I I I
A B C
LM2 LM1 MIN
_
I20
Step 1:
a. Enter Group Level of Programming Mode,
(see Chapter 6).
b. Press MAX/MIN/LIMITS until 1. appears in upper
display.
c. Press VOLTS to activate the Group.
Step 2:
Ö 10. appears in upper display.
Ö Lower display indicates Full Scale setting.
Ö A segment appears in upper display.
Ö UP signifies - Kilovolts.
Ö DOWN signifies - Volts.
a. Press VOLTS to begin Data Entry Sequence.
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GE Industrial Systems