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CHAPTER 3: ELECTRICAL INSTALLATION
GE Multilin EPM 5000 series Advanced Power Meters 15
20
21
22
23
24
25
26
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28
N.O.
N.C.
COM
N.O.
N.C.
COM
K
Y
Z
A
LARM #1
A
LARM #2
PULSE
OUTPUT
Figure 3.1: Close-up of the Relay and KYZ pulse output on the rear panel.
Note: The relays shown in the figure above are in the NOT energized state.
THE INSTRUMENT DETECTS TWO LEVELS OF ALARM FOR THE FOLLOWING FUNCTIONS:
" Voltage: AN, BN, CN, AB, BC, CA
" Current: A, B, C, N
" Over and Reverse Power
" Under PF/KVAR Lead or Lag
" Over KVA
" Voltage Imbalance (One level only)
" Over/Under Frequency
" Voltage Phase Reversals (One level only)
" Over/Under %THD (Available only with option –H)
" Over/Under K-Factor
KYZ RELAYS: Provides pulses for energy management systems or any other type of recording device.
These pulses represent accumulated watt-hour, negative watt-hour, or VA-hour. Accomplish this
assignment through the Programming Mode (see programming sections). The pulse value is determined
by the decimal increment of the power function assigned to the pulse. The EPM 5200P can be equipped
with KYZ pulse outputs.
NOTE: Unless otherwise specified, standard KYZ setup represents positive watt hour. See table below
for standard rate. The scale factor for wattage (KW or MW) and Full Scale Decimal Point Placement is
selectable in Programming Mode GROUP 1, FUNCTION 2. Follow the Decimal Point Placement
corresponding to the Change in Level. A multiplication or division factor can be programmed. See
Programming GROUP 0, FUNCTION 6 for a different rate.
STANDARD RATE TABLE FOR WATTS*
DECIMAL POINT PLACEMENT
(KW/MW)
CHANGE IN LEVEL
9999.000 1.0 Units W-Hour
999.900 0.1 Units W-Hour
99.990 0.01 Units W-Hour
9.999 0.001 Units W-Hour
*Units could be KiloWatts or MegaWatts.
3.8: KYZ Pulse Outputs: NL2 Option
The -NL2 option for the meter is equipped with three KYZ outputs. KYZ relays provide pulses for energy
management systems or any other type of recording device. These pulses represent accumulated
positive watt-hour, negative watt-hour, VA-hour, positive VAR-hour, or negative VAR-hour. Accomplish
this through Programming Mode GROUP 0, FUNCTION 6. The pulse value is dependent upon the
Decimal Point Placement and is determined by the decimal increment of the power function assigned to
the pulse. Refer to the situation that applies to the meter setting.