Basler Electric BE1-11t - Manual (Page 151)

9424200995 Rev H 139
Figure 99. Analog Metering, Frequency Screen
Differential
The differential value is calculated as shown in the following equations:
If 87 Mode = Phase Differential and Slope Mode = Maximum, then IOP A = |𝐼
𝐶𝑂𝑀𝑃𝐴1
+ 𝐼
𝐶𝑂𝑀𝑃𝐴2
|
where: I
COMPA1
=
IA
1
TAP
1
and I
COMPA2
=
IA
2
TAP
2
Equation 19. IOP A Calculation when 87 Mode = Phase Differential
If 87 Mode = Phase Differential, then IR A = max (IRA
1
, IRA
2
)
Equation 20. IR A Calculation when 87 Mode = Phase Differential and Slope Mode = Maximum
If 87 Mode = Phase Differential and Slope Mode = Average, then IR A = avg (IRA
1
, IRA
2
)
Equation 21. IR A Calculation when 87 Mode = Phase Differential and Slope Mode = Average
Differential metering data is found in BESTCOMSPlus (Figure 100) and on the Metering > Analog
Metering > Differential screen of the front-panel display.
Figure 100. Analog Metering, Differential Screen
BE1-11t Metering