Setting Parameters - ABB RET670 Applications Manual

Section 3
IED application
3.7.12.3
Table 117: BRCPTOC (46) Group settings (basic)
Name Values (Range)
Operation Disabled
Enabled
IBase 0 - 99999
Pickup_ub 50 - 90
Pickup_PH 5 - 100
tOper 0.000 - 60.000
Table 118: BRCPTOC (46) Group settings (advanced)
Name Values (Range)
tReset 0.010 - 60.000
3.7.13
3.7.13.1
494

Setting parameters

Unit Step
- -
A 1
%IM 1
%IB 1
s 0.001
Unit Step
s 0.001
Capacitor bank protection CBPGAPC
Function description
Capacitor bank protection
Application
Shunt capacitor banks (SCBs) are somewhat specific and different from other power
system elements. These specific features of SCB are briefly summarized in this section.
A capacitor unit is the building block used for SCB construction. The capacitor unit is
made up of individual capacitor elements, arranged in parallel or series connections.
Capacitor elements normally consist of aluminum foil, paper, or film-insulated cells
immersed in a biodegradable insulating fluid and are sealed in a metallic container. The
internal discharge resistor is also integrated within the capacitor unit in order to reduce
trapped residual voltage after disconnection of the SCB from the power system. Units
are available in a variety of voltage ratings (240V to 25kV) and sizes (2.5kVAr to
about 1000kVAr). Capacitor unit can be designed with one or two bushings.
The high-voltage SCB is normally constructed using individual capacitor units
connected in series and/or parallel to obtain the required voltage and MVAr rating.
Typically the neighboring capacitor units are mounted in racks. Each rack must be
Default Description
Disabled Operation Disable / Enable
3000 IBase
50 Unbalance current operation value in percent
of max current
20 Minimum phase current for operation of
pickup_ub> in % of Ibase
5.000 Operate time delay
Default Description
0.100 Time delay in reset
IEC 61850 IEC 60617
identification identification
CBPGAPC
1MRK504116-UUS C
ANSI/IEEE C37.2
device number
- -
Application manual