Test Of Point Re; Fwdr Fwdx - ABB REG670 2.0 IEC Commissioning Manual

Relion 670 series generator protection
Table of Contents

Advertisement

1MRK502053-UEN B
12.4.5.2
Generator protection REG670 2.0 IEC
Commissioning manual
Testing functionality by secondary injection
For the test as motor the frequency current may have 50.5 Hz in the
quadrant 1 and 2 of the R-X plane and 49.5 Hz in the quadrant 3 and
4.
Verifying the settings by secondary injection
It is advised to connect the analog output channels of the function block OOSPPAM
to the internal disturbance recorder (and in particular to the function block A4RADR)
in order to perform a better analysis of the tests.
If the device is in test mode, the recording of the disturbances are enabled by the
setting in Main menu/Settings/IED Settings/Monitoring/Disturbance report/
DisturbanceReport/DRPRDRE:1: set the parameter OpModeTest to On.
1.
Check the Application Configuration: verify that hardware voltage and current
channels of the IED are properly connected to SMAI function blocks, and that the
proper analog outputs of SMAI's are connected to the analog inputs of the
function block OOSPPAM.
2.
Connect three-phase voltage channels of the test set to the appropriate IED
terminals.
3.
Connect in parallel two groups of three-phase currents of the test set to the
appropriate IED terminals.
4.
Connect the appropriate trip output of the IED to the input channel of the test set
that monitors the trip.
5.
Go to Main menu/Settings/IED Settings/Impedance protection/
OutOfStep(78,Ucos)/OOSPPAM(78,Ucos):1, and make sure that the function
is enabled, that is, Operation is set to On.
Test of point RE (R
FwdR
The trajectory of the impedance does not enter the lens characteristic.
Preliminary steady state test at 50 Hz
Go to Main menu/Test/Function status/Impedance protection/
OutOfStep(78,Ucos)/OOSPPAM(78,Ucos):1/Outputs to check the available
service values of the function block OOSPPAM.
Apply the following three-phase symmetrical quantities (the phase angle is
related to phase L1):
V
VT s
,
V
1 1
.
V
=
×
×
ts
t FwdZ
,
V
VT p
,
EQUATION14057 V1 EN
ForwardX
V
arctan
=
ts
ForwardR
EQUATION14058 V1 EN
frequency of V
= 50 Hz
ts
, X
)
FwdX
0 1
.
1 1 11931
.
95 1
.
=
×
×
=
13 8
.
59 33
.
arctan
82. . 14°
 =
 =
8 19
.
Section 12
V
(Equation 17)
(Equation 18)
127

Advertisement

Table of Contents
loading

Table of Contents