5. Undercurrent protection for SCB
6. Reconnection inhibit protection for SCB
7. Restrike condition detection
CBPGAPC function can be used to provide the last four types of protection mentioned
in the above list.
3.7.13.2 Setting guidelines
This setting example will be done for application as shown in figure
212:
Preprocessing
Function Block
Capacitor bank
protection function
400kV
CBPGAPCSMAI
200MVAr
400kV
500/1
IED
IEC09000754-1-en.vsd
IEC09000754 V1 EN
Figure 212: Single line diagram for the application example
From figure 212 it is possible to calculate the following rated fundamental frequency
current for this SCB:
1000 200[ ]
289
3 400[ ]
r
MVAr
I A
kV
×
= =
×
IEC09000755 V1 EN
(Equation 396)
or on the secondary CT side:
Section 3 1MRK504116-UUS C
IED application
498
Application manual
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