IAmpComp5, IAmpComp30, IAmpComp100
UAmpComp5, UAmpComp30, UAmpComp100
IAngComp5, IAngComp30, IAngComp100
The angle compensation is given as difference between current and voltage angle errors.
The values are given for operating points 5, 30 and 100% of rated current/voltage. The values
should be available from instrument transformer test protocols.
7.10
Capacitor bank protection CBPGAPC
GUID-41731DCF-840C-4717-9F51-899FC648F881 v2
7.10.1
Identification
GUID-67FC8DBF-4391-4562-A630-3F244CBB4A33 v2
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Capacitor bank protection
CBPGAPC
-
-
7.10.2
Application
GUID-5EC8BAEC-9118-49EC-970C-43D6C416640A v1
GUID-BACAE67B-E64B-4963-B323-ECB0B69031B9 v2
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 insulated from the other by insulators
because the can casing within each rack are at a certain potential. Refer figure
example:
1MRK 505 370-UEN D
Section 7
Current protection
Busbar protection REB670
201
Application manual
Summary of Contents for REB670 Series
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