Tracking Frequency; Flexelements - GE M60 Instruction Manual

6 ACTUAL VALUES

PATH: ACTUAL VALUES METERING
 TRACKING FREQUENCY

The tracking frequency is displayed here. The frequency is tracked based on the selection of the reference source with the
FREQUENCY AND PHASE REFERENCE
Power System section of chapter 5 for additional details.

PATH: ACTUAL VALUES METERING
 FLEXELEMENT 1

The operating signals for the FlexElements™ are displayed in pu values using the following definitions of the base units.
Table 6–2: FLEXELEMENT™ BASE UNITS
CURRENT UNBALANCE
(Amp Unbalance)
DCmA
FREQUENCY
PHASE ANGLE
POWER FACTOR
RTDs
SENSITIVE DIR POWER
(Sns Dir Power)
SOURCE CURRENT
SOURCE ENERGY
(Positive and Negative Watthours,
Positive and Negative Varhours)
SOURCE POWER
SOURCE VOLTAGE
STATOR DIFFERENTIAL
CURRENT
(Stator Diff Iar, Ibr, and Icr)
STATOR RESTRAINING
CURRENT
(Stator Diff Iad, Ibd, and Icd)
THERMAL MODEL
(Model Capacity Used)
(Model Motor Unbalance)
THERMAL MODEL
(Model Lockout Time)
THERMAL MODEL
(Thermal Model Load)
(Biased Motor Load)
THERMAL MODEL
(Trip Time on Overload)
GE Multilin


TRACKING FREQUENCY

TRACKING FREQUENCY:
60.00 Hz
setting in the 
SETTINGS
 

FLEXELEMENTS

FLEXELEMENT 1(16)
FLEXELEMENT 1
OpSig: 0.000
BASE = 100%
BASE = maximum value of the DCMA INPUT MAX
under the +IN and –IN inputs.
f = 1 Hz
BASE
ϕ
= 360 degrees (see the UR angle referencing convention)
BASE
PF = 1.00
BASE
BASE = 100°C
= maximum value of 3 × V
P
BASE
configured for the sensitive power directional element(s).
I = maximum nominal primary RMS value of the +IN and –IN inputs
BASE
E = 10000 MWh or MVAh, respectively
BASE
P = maximum value of V
BASE BASE
V = maximum nominal primary RMS value of the +IN and –IN inputs
BASE
I = maximum primary RMS value of the +IN and –IN inputs
BASE
(CT primary for source currents, and bus reference primary current for bus differential currents)
I = maximum primary RMS value of the +IN and –IN inputs
BASE
(CT primary for source currents, and bus reference primary current for bus differential currents)
BASE =100%
BASE = 10 minutes
BASE = 1.00 pu of FLA
BASE = 10 seconds
M60 Motor Protection System
6.3.7 TRACKING FREQUENCY

SYSTEM SETUP POWER SYSTEM
setting for the two transducers configured
× I
for the +IN and –IN inputs of the sources
BASE BASE
× I
for the +IN and –IN inputs
BASE
6.3 METERING
menu. Refer to the
6.3.8 FLEXELEMENTS™
6-21
6