ABB / Power swing detection (ZMRPSB) _ Setting & highlights _ AB2026

Overview

The “Power swing detection (ZMRPSB)” function is used to detect power swings and initiate block of all distance protection zones. Occurrence of earth-fault currents during a power swing inhibits the ZMRPSB function, to allow fault clearance.

For more detailed information on “Power swing detection (ZMRPSB)” function, refer to ABB, Relion 670 Series manuals.

To see other supported functions, click here.

ZMRPSB Identification

Function description	IEC 61850 identification	IEC 60617 identification	ANSI/IEEE C37.2 device number
Power swing detection	ZMRPSB	Zpsb	68

Signals & Setting Parameters

ZMRPSB function block

ZMRPSB Input signals

ZMRPSB Input signals
Name	Type	Default	Description
I3P	GROUP SIGNAL	–	Group signal for current input
U3P	GROUP SIGNAL	–	Group signal for voltage input
BLOCK	BOOLEAN	0	Block of function
BLKI01	BOOLEAN	0	Block inhibit of start output for slow swing condition
BLKI02	BOOLEAN	0	Block inhibit of start output for subsequent residual current detection
BLK1PH	BOOLEAN	0	Block one-out-of-three-phase operating mode
REL1PH	BOOLEAN	0	Release one-out-of-three-phase operating mode
BLK2PH	BOOLEAN	0	Block two-out-of-three-phase operating mode
REL2PH	BOOLEAN	0	Release two-out-of-three-phase operating mode
I0CHECK	BOOLEAN	0	Residual current (3I0) detection used to inhibit start output
TRSP	BOOLEAN	0	Single-pole tripping command issued by tripping function
EXTERNAL	BOOLEAN	0	Input for external detection of power swing

ZMRPSB Output signals

ZMRPSB Output signals
Name	Type	Description
START	BOOLEAN	Power swing detected
ZOUT	BOOLEAN	Measured impedance within outer impedance boundary
ZIN	BOOLEAN	Measured impedance within inner impedance boundary

ZMRPSB Group settings (basic)

ZMRPSB Group settings (basic)
Name	Values (Range)	Unit	Step	Default	Description
Operation	Off On	–	–	Off	Operation Mode On / Off
X1InFw	0.01 – 3000.00	Ohm/p	0.01	30.00	Inner reactive boundary, forward
R1LIn	0.01 – 1000.00	Ohm/p	0.01	30.00	Line resistance for inner characteristic angle
R1FInFw	0.01 – 1000.00	Ohm/l	0.01	30.00	Fault resistance coverage to inner resistive line, forward
X1InRv	0.01 – 3000.00	Ohm/p	0.01	30.00	Inner reactive boundary, reverse
R1FInRv	0.01 – 1000.00	Ohm/l	0.01	30.00	Fault resistance line to inner resistive boundary, reverse
OperationLdCh	Off On	–	–	On	Operation of load discrimination characteristic
RLdOutFw	0.01 – 3000.00	Ohm/p	0.01	30.00	Outer resistive load boundary, forward
ArgLd	5 – 70	Deg	1	25	Load angle determining load impedance area
RLdOutRv	0.01 – 3000.00	Ohm/p	0.01	30.00	Outer resistive load boundary, reverse
kLdRFw	0.50 – 0.90	Mult	0.01	0.75	Multiplication factor for inner resistive load boundary, forward
kLdRRv	0.50 – 0.90	Mult	0.01	0.75	Multiplication factor for inner resistive load boundary, reverse
tEF	0.000 – 60.000	s	0.001	3.000	Timer for overcoming single-pole reclosing dead time
IMinOpPE	5 – 30	%IB	1	10	Minimum operate current in % of IBase

ZMRPSB Group settings (advanced)

ZMRPSB Group settings (advanced)
Name	Values (Range)	Unit	Step	Default	Description
tP1	0.000 – 60.000	s	0.001	0.045	Timer for detection of initial power swing
tP2	0.000 – 60.000	s	0.001	0.015	Timer for detection of subsequent power swings
tW	0.000 – 60.000	s	0.001	0.250	Waiting timer for activation of tP2 timer
tH	0.000 – 60.000	s	0.001	0.500	Timer for holding power swing START output
tR1	0.000 – 60.000	s	0.001	0.300	Timer giving delay to inhibit by the residual current
tR2	0.000 – 60.000	s	0.001	2.000	Timer giving delay to inhibit at very slow swing

ZMRPSB Non group settings (basic)

ZMRPSB 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

ABB / Power swing detection (ZMRPSB) _ Setting & highlights _ AB2026

Overview

ZMRPSB Identification

Signals & Setting Parameters

ZMRPSB function block

ZMRPSB Input signals

ZMRPSB Output signals

ZMRPSB Group settings (basic)

ZMRPSB Group settings (advanced)

ZMRPSB Non group settings (basic)

Logics & highlights

Operating characteristic for ZMRPSB function (setting parameters in italic)

Detection of power swing in phase L1

Detection of power swing for 1-of-3 and 2-of-3 operating mode

Simplified block diagram for ZMRPSB function