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9.1.2.2.
Locking of the sampling frequency
As default, the sampling frequency is locked to V1.
If V1 is missing, the instrument attempts to lock to V2, then to V3, I1, I2, and I3.
9.1.2.3. AC/DC
The PEL makes AC and DC measurements for AC and DC distribution networks. AC or DC is selected by the user.
The AC + DC values are available with PEL Transfer.
9.1.2.4.
Neutral current measurement
Depending on the distribution network, if there is no current sensor on the I
N
terminal, the neutral current is determined by calculation.
9.1.2.5.
"200ms" quantities
The instrument calculates the following quantities every 200 ms on the basis of measurements on 10 periods for 50Hz, 12 periods
for 60Hz, and 80 periods for 400Hz, as indicated by Table 22.
The "200ms" quantities are used for:
the trends on the "1s" quantities
the aggregation of the values for the "1s" quantities (See § 9.1.2.6).
All of the "200ms" quantities can be recorded on the SD card during the recording session.
9.1.2.6.
"1 s" quantities (one second)
The instrument calculates the following quantities every 200 ms on the basis of measurements on 50 periods for 50Hz, 60 periods
for 60Hz, and 400 periods for 400Hz, as indicated by Table 22.
The "1s" quantities are used for:
the real-time values
the trends
the aggregation of the values for the "aggregated" quantities (See § 9.1.2.7).
the determination of the values and maximum/minimum for the values of the "aggregated" trends
All of the "1s" quantities can be recorded on the SD card during the recording session.
9.1.2.7.
Aggregation
An aggregated quantity is a value calculated over an aggregation period as indicated by Table 23.
The aggregation period always starts at the beginning of an hour or of a minute. The aggregation period is the same for all quanti-
ties. The possible periods are the following: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30 and 60 min.
All aggregated quantities are recorded on the SD card during the recording session. They can be displayed in PEL Transfer (See § 5).
9.1.2.8.
Minimum and maximum
The Min and Max are the minimum and maximum values observed during the aggregation period considered. They are recorded
with their dates and times (see Table 23). The Max of some aggregated values are displayed directly on the instrument.
9.1.2.9.
Energy calculations
The energies are calculated every second.
The total energy is the demand during the recording session.
The partial energy can be determined for one of the following integration periods: 1h, 1 day, 1 week or 1 month. The partial energy
index is available only in real time. It is not recorded.
On the other hand, the total energies are available with the data of the recorded session.
Summary of Contents for PEL 106
Page 1: ...Power energy logger EN User s manual PEL 106 ...
Page 34: ...34 Three phase 3 wire balanced 3P 3W b U12 U23 U31 f P Q S PF P Q S tan ϕ ϕ I1 U12 I1 I2 I3 ...
Page 36: ...36 Three phase 4 wire wye balanced 3P 4WYb I1 I2 I3 V1 V2 V3 VN U12 U23 U31 f P Q S tan ϕ ...
Page 37: ...37 DC 2 wire dC 2W DC 3 wire dC 3W P Q S PF ϕ I1 V1 P Q S tan ϕ P I V VN I1 I2 IN ...
Page 38: ...38 DC 4 wire dC 4W P I1 I2 I3 IN V1 V2 V3 VN V1 V2 VN ...
Page 46: ...46 Two phase 3 wire 1P 3W I1 I2 V1 V2 U12 VN P Q S P Q S ...
Page 49: ...49 P Q S ...
