GE EPM 5300, Instruction Manual

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CHAPTER 10: PROGRAMMING GROUP 1
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EPM 5000 series Advanced Power Meters GE Multilin
Full Scale Wattage (FSW) is the product of FSV and FSA. For FSW for three phases multiply the FSW
per phase by 3.
Example 1: Full Scale Voltage (FSV)=120 V
Full Scale Amperage (FSA)=5.00 A
FSW (one phase) =120 Vx5.00 A
FSW (one phase)=600 W
FSW (three phase)=600 Wx3 = 1,800 W
Here the FSW is too small a value for a Megawatt meter. FSW in the Kilowatt meter equals 1.800 KW. In
FUNCTION
2, four 9s appear. Place the decimal point after the first digit. The user cannot change the
four digits. The user can only move the decimal point placement.
Example 2: 480/120 PT, 1000/5 CT
FSV=480 V
FSA=1000 A
FSW (one phase)=480 V
⋅
1000 A
FSW (one phase)=480,000 W
FSW (three phase)=480,000 W
⋅
3 = 1,440,000 W
FSW for a Kilowatt meter equals 1440. KW. FSW for a Megawatt meter equals 1.440 MW. In FUNCTION
2 place the decimal point after the last digit for a Kilowatt meter and after the first digit for a Megawatt
meter. It is important to note which type of bezel labeling you have when making this decision.
Example 3: 14.4 KV/120, 1000/5 CT
FSV=14.40 KV
FSA=1000 A
FSW (one phase)=14,400 Vx1000 A
FSW (one phase)=14,400,000 W
FSW (three phase)=14,440, 000 Wx3 = 43,200,000 W
FSW for a Kilowatt meter equals 43,200 KW. Here the FSW is too large a value for a Kilowatt meter (the
range is 000–2500). FSW for a Megawatt meter equals 043.2 MW. In FUNCTION
2 , place the decimal
after the third digit.
NOTE: In some applications where the load is normally very low, the watts resolution can be increased
by moving the decimal point one position left.