Satec PM175 Manual User Manual Page 44

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Chapter 3 Display Operations
44
Series PM175 Powermeters
Label
Parameter
Options
Default
Description
ConF
Wiring connection
(configuration) mode
See “Basic
Meter
Setup” in
Chapter 4
4Ln3
The wiring connection of the
device
Pt
PT ratio
1.0-6500.0
1.0
The phase potential
transformer’s primary to
secondary ratio
Pt.F
PT Ratio multiplier
×1, ×10
×1
PT Ratio multiplication factor.
Used in extra high voltage
networks to accommodate the
PT ratio for 500 kV and higher
networks.
U.SEC
Nominal secondary
voltage
10-690 V
120 V
The nominal secondary line-to-
neutral (in 4LN3, 3LN3 and
3BLN3 wiring modes) or line-to-
line (in 4LL3, 3LL3, 3BLL3,
3OP2, 3OP3 and 3DIR modes)
voltage. Used as a reference
voltage for the EN50160
evaluation.
Ct
CT primary current
1-20,000 A
5 A
The primary rating of the phase
current transformer
d.P
Power block demand
period
1, 2, 3, 5,
10, 15, 20,
30, 60 min,
E=external
sync
30 min
The length of the demand
period for power demand
calculations. If the external
synchronization is selected, a
pulse front on the digital input
DI1 denotes the start of the
demand interval.
nd.P
The number of blocks in
the sliding window
1-15
1
The number of blocks to be
averaged for sliding window
demands
Ad.P
Ampere, volt and THD
demand period
0-1800 sec
900 sec
The length of the demand
period for ampere, volt and
THD demand calculations
Freq
Nominal frequency
50,60 Hz
60 Hz
The nominal line frequency
LoAd
Maximum demand load
current
0-20,000 A
0
The maximum demand load
current (0 = CT primary)
Always specify the wiring mode and transformer ratings prior to
setting up setpoints and analog outputs.
The maximum value for the product of the phase CT primary
current and PT ratio is 57,500,000. If the product is greater, power
readings are zeroed.
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