ABB / Current circuit supervision (CCSSPVC) _ Setting & highlights _ AB2065

Overview

Open or short circuited current transformer cores can cause unwanted operation of many protection functions such as differential, earth-fault current and negative-sequence current functions. “Current circuit supervision (CCSSPVC)” function compares the residual current from a three phase set of current transformer cores with the neutral point current on a separate input taken from another set of cores on the current transformer.

For more detailed information on “Current circuit supervision (CCSSPVC)” function, refer to ABB, Relion 670 Series manuals.

To see other supported functions, click here.

Function Identification

Function description	IEC 61850 identification	IEC 60617 identification	ANSI/IEEE C37.2 device number
Current circuit supervision	CCSSPVC	–	–

Signals & Setting Parameters

CCSSPVC function block

CCSSPVC Input signals

CCSSPVC Input signals
Name	Type	Default	Description
I3P	GROUP SIGNAL	–	Group signal for three phase current input
IREF	GROUP SIGNAL	–	Residual reference current input
BLOCK	BOOLEAN	0	Block of function

CCSSPVC Output signals

CCSSPVC Output signals
Name	Type	Description
FAIL	BOOLEAN	Detection of current circuit failure
ALARM	BOOLEAN	Alarm for current circuit failure

CCSSPVC Group settings (basic)

CCSSPVC Group settings (basic)
Name	Values (Range)	Unit	Step	Default	Description
Operation	Off On	–	–	Off	Operation Off / On
IMinOp	10 – 200	%IB	1	20	Minimum operate current differential level in % of IBase

CCSSPVC Group settings (advanced)

CCSSPVC Group settings (advanced)
Name	Values (Range)	Unit	Step	Default	Description
Ip>Block	20 – 500	%IB	1	150	Block of the function at high phase current, in % of IBase

CCSSPVC Non group settings (basic)

CCSSPVC Non group settings (basic)
Name	Values (Range)	Unit	Step	Default	Description
GlobalBaseSel	1 – 12	–	1	1	Selection of one of the Global Base Value groups