Sel 421 - Figure 4.27 Terminal Screen MET Metering Quantities

U.4.37
Date Code 20090715 User’s Guide SEL-421 Relay
Basic Relay Operations
Examining Metering Quantities
=>>MET <Enter>
Relay 1
Date: 02/26/2004 Time: 01:35:05.221
Station A Serial Number: 0000000000
Phase Currents
IA IB IC
I MAG (A) 398.882 399.041 398.784
I ANG (DEG) -1.18 -120.97 119.21
Phase Voltages Phase-Phase Voltages
VA VB VC VAB VBC VCA
V MAG (kV) 133.994 133.986 133.953 231.903 231.815 232.450
V ANG (DEG) -0.17 -120.02 120.18 29.91 -89.92 150.01
Sequence Currents (A) Sequence Voltages (kV)
I1 3I2 3I0 V1 3V2 3V0
MAG 398.901 2.159 2.588 133.977 0.692 0.713
ANG (DEG) -0.98 -62.68 -115.80 0.00 -53.25 -120.79
A
B C 3P
P (MW) 53.44 53.46 53.41 160.31
Q (MVAR) 0.95 0.89 0.91 2.75
S (MVA) 53.45 53.47 53.42 160.33
POWER FACTOR 1.00 1.00 1.00 1.00
LAG LAG LAG LAG
FREQ (Hz) 60.00
VDC1(V) 125.00 VDC2(V) 48.00
=>>
Figure 4.27 Terminal Screen MET Metering Quantities
The metering quantities of View Metering: Terminal on page U.4.33 are the
fundamental line quantities. Other variants of the MET command give
different relay metering quantities. For example, you can see the line rms
(harmonics-included) quantities by issuing the MET RMS command. See
Metering on page A.2.26 and METER on page R.9.28 for more information on
the MET command.
View Metering:
ACSELERATOR QuickSet
Use the procedures in the following steps to examine the SEL-421 metering
with the
ACSELERATOR QuickSet HMI.
This example assumes that you have successfully established communication
with the relay (see Making an EIA-232 Serial Port Connection on page U.4.5).
In addition, you must be familiar with relay access levels and passwords (see
Changing the Default Passwords: Terminal on page U.4.9 to change the
default access level passwords). You should also be familiar with
ACSELERATOR QuickSet (see Checking Relay Status: ACSELERATOR QuickSet
on page U.4.11 and Section 3: PC Software).
Step 1. Configure the communications port.
a. Start
ACSELERATOR QuickSet.
b. On the top toolbar, open the Communication menu,
and then click Port Parameters.
You will see the Port Parameters dialog box similar to
Figure 4.7.
c. Select the Data Speed, Data Bits, Stop Bits, Parity,
and RTS/CTS that match the relay settings. The
defaults are 9600, 8, 1, None, Off, respectively.
d. Click OK to update the
ACSELERATOR QuickSet
communications parameters.
e. Confirm that the Communications Status bar at the
bottom of the
ACSELERATOR QuickSet window says
Connected.
Courtesy of NationalSwitchgear.com