BE1-MMS100
APPLICATIONS,
continued
Within this interface reports can be generated and
printed for further use. Some of the screens and
reports provided by UMOS© are:
SCREENS
REPORTS
Alarm Panel
Daily Summary
Event Log
Detail
Sequence of Events Log
Volts and Amps
Strip Charts
On/Off Peak
Forecast Strip Charts
Monthly Peaks
Load Control Schedules
Fault
One-line Diagrams
Relay Settings
Fault Reports
Oscillographic Records
Relay Settings
METERING POWER CONTRACTS
A BE1-MMS1 00 can be connected on each power
circuit and log metering data for various customers.
Using the "call home" and dial-up modes of operation
within the BE1-MMS1 00 and BESTCOMS software, the
logged data can be automatically transferred at
various intervals.
UTILITY SUB-METERING
The BE1-MMS1 00 and a Basler Electric BE1 protective
relay can be dovetailed together to form a standard 19-
inch rack feeder unit for metering, protection and
control. The combination provides the advantage of
high metering accuracy that is normally unavailable
within protective relays due to their wide dynamic
range with the protection required for reliable feeder
operation.
COMMERCIAL/INDUSTRIAL METERING
The BE1-MMS1 00 can be applied anywhere a panel
meter is needed to measure and record energy
consumption or generation. When applied to the
incoming feeders of buildings or areas within a facility,
accurate data can be obtained for tenant sub-billing or
energy consumption costing. When applied to electri
cal machinery or equipment, the BE1-MMS1 00 pro
vides measurement of harmonic distortion up to the
31st harmonic.
FUNCTIONAL DESCRIPTION
INPUT SIGNALS
CT/PT Inp ut Signals
The BE1-MMS1 00 accepts the following input signal
combinations:
•
1 , 2 or 3 ac voltages supplied from 67 or 120Vac
PTs
•
1,
2, 3 or 4 ac currents supplied from 1 A or 5A CTs,
specified at time of order.
Meter input signals are supplied from PTs and CTs as
paired sets of input signals. Input signals are pro
cessed in pairs, with the exception of the neutral
current input.
The BE1-MMS1 00 samples the seven input waveforms
at the rate of 64 samples per cycle and computes true
RMS voltages (3), true RMS currents (4), and uses
paired 1-V input samples to compute true RMS Watts
and VARs.
Voltage inputs are processed as either phase-to
neutral or phase-to-phase. The voltage input configura
tion is set via the front panel or BESTCOMS.
New data vectors containing voltage, current and the
relative phase angle for 1-V pairs are available at the
communication port once per second. The kW, kVAR
and frequency data are also available once per sec
ond. The voltage, current, kW, kVAR, Power Factor
and frequency information is displayed and updated
on the BE1-MMS1 00 LCD display once per second.
Once per minute the BE1-MMS1 00 computes the kWh,
kVARh and kVAh values and displays the imported,
exported and accumulated kWh, kVARh and kVAh on
the LCD display. Also, on the minute, the BE1-
MMS1 00 computes the first 31 harmonic values for the
voltage or current inputs and the total harmonic distor
tion (THO%).
Once every 15 minutes the BE1-MMS1 00 stores in flash
memory the phase average of Volts, Amps, kW, kVAR,
Power Factor and frequency values. The historical data
is stored to flash memory once every 15 minutes or on
a power down event. Flash memory will accommodate
36 days of data storage. Data is retained for 36 days
and is available for downloading to a master station via
the communication port.
Similarly, imported, exported, and accumulated kWh,
kVARh and kVAh and elapsed time values are accu
mulated every minute and kept in RAM, and on a
power down event, are transferred to EEPROM.
3
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