25
Instruction Manual
CIRWATT B 400
The maximum demand between the closing of two billing periods is the maximum value of each of
these values averaged every 15 minutes (
MD
15
).
)
(
15
MD
Max
MAXDEM
2.8.- Cálculo de energía
n
n
n
P
iva
EnergiaAct
1
3600
n
n
n
Q
ctiva
EnergiaRea
1
3600
Equation 9: Maximum of maximum demand�
3�8 - ENERGY CALCULATION
)
(
15
MD
Max
MAXDEM
2.8.- Cálculo de energía
n
n
n
P
iva
EnergiaAct
1
3600
n
n
n
Q
ctiva
EnergiaRea
1
3600
Equation 10: Energies�
3�9 - QUALITY OF SERVICE
3�9�1 - INTRODUCTION
Article 9, section 11 of Royal Decree 1110/2007 specifies that
"Likewise, all metering equipment for
customer metering points shall incorporate a record of parameters relating to the quality of the service.
These records must include at least the number and duration of each of supply interruption lasting
equal to or greater than 3 minutes detected by the metering equipment, as well as how long the line
voltage is above or below the allowed limits"
.
3�9�2 -LINE VOLTAGE OUT OF RANGE
In order to correctly record any incidents involving out-of-range line voltages, five parameters must
be programmed into the device. The base nominal voltage for the calculation, the separation threshold
between low voltage and no voltage, the upper and lower voltage setpoints and the minimum duration
of the incident.
Ongoing incidents (still active) will be differentiated from closed incidents (that are over).
For each incident, the affected phase, the type of incident (over- or under-voltage), the date-time
the incident starts and the date-time the incident ends will be recorded. The latter is recorded to the
nearest second.
A - Rated voltage�
This is the rated value of the supply voltage (in three-phase devices, phase-phase voltage) that must
be considered to determine whether the line voltage is over or under the specified limits. In devices
supplied by voltage transformers, this rated voltage is the primary voltage.
