5.2
SEL-2414 Transformer Monitor Instruction Manual Date Code 20130214
Metering and Monitoring
Metering
Metering
The SEL-2414 meter data fall into the following categories:
NOTE: The SEL-2414 performs all
power calculations with the
understanding that the voltages
connected to the device are from a
balanced, three-phase supply. Device
calculations for single-phase voltages
or other unbalanced supply voltages
are meaningless.
Because of the flexibility of the SEL-2414, you can configure your device in
many combinations of analog input, current, and/or voltage cards. As a result of
this flexible configuration, displayed metering is a function of the particular
device configuration.
RTD Metering
There are two ways to get RTD readings on the SEL-2414. One is by installing an
RTD card. These readings will be referred to as “internal RTD”. The other way is
to connect the SEL-2414 to an SEL-2600. These readings will be referred to as
“external RTDs”.
The thermal metering function reports the present values of the RTD input
temperatures. Figure 5.1 shows the device response to the MET RTD command.
The MET RTD command will only work with the dedicated RTD card and not
the general purpose RTD/Thermocouple card.
Metering Command
Transformer
Temperature from dedicated RTD card MET RTD
Temperature from general purpose RTD/TC card MET TEMP
Current and/or Voltage
Fundamental MET F
Energy MET E
Maximum/Minimum MET M
Demand MET D
Other
Analog Input MET AI
Remote Analog MET RA
Math Variable MET MV
=>>MET RTD <Enter>
SEL-2414 Date: 01/30/2002 Time: 18:55:00
DEVICE
INTRTD01 0 C
INTRTD02 48 C
INTRTD03 1 C
INTRTD04 166 C
INTRTD05 1 C
INTRTD06 249 C
INTRTD07 1 C
INTRTD08 46 C
INTRTD09 -2 C
INTRTD10 -47 C
=>>
Figure 5.1 Device Response to the MET RTD Command
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