MI 2892 Power Master
Recording Practice and Instrument Connection
145
4.4
Number of measured parameters and connection type
relationship
Parameters which Power Master Displays and measures, mainly depends on network type, defined in
CONNECTION SETUP menu – Connection type. In example if user choose single phase connection
system, only measurements relate to single phase system will be present. Table below shows
dependencies between measurement parameters and type of network.
Table 4.10: Quantities measured by instrument
Connection type
Menu
1W
2W
3W
OpenD
4W
L1 N L1
L2 N
L12 Tot
L12 L23 L31 Tot L12 L23 L31 Tot L1 L2 L3 N L12 L23 L31 Tot
Volt
age
RMS
THD
Crest Factor
Frequency
Harmonics
(0÷50)
Interharm.
(0÷50)
Unbalance
Flicker
Signalling
Events
L1 N L1
L2 N
L12 Tot
L1
L2
L3
Tot L1
L2
L3
Tot L1 L2 L3 N L12 L23 L31 Tot
Curr
en
t
RMS
THD
Harmonics
(0÷50)
Interharm.
(0÷50)
Unbalance
Con
su
m
e
d
P
wr
.
Combined
Fundamental
Nonfundament.
Energy
Power factors
Gener
at
ed
P
wr
.
Combined
Fundamental
Nonfundament.
Energy
Power Factors
Note: Frequency measurement depends on synchronization (reference) channel, which can be voltage
or current.