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1MRK 511 366-UUS -
11.3.2.3
Commissioning manual
Test of the boundary between zone 1 and zone 2, which is defined by the
ReachZ1
parameter
The trajectory of the impedance traverses the lens characteristic in zone 2
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
,
1 1
.
V
V
=
×
×
ts
t RZ
,
1
V
VT p
,
EQUATION14065 V1 EN
ForwardX
∠
=
V
arctan
ts
ForwardR
EQUATION14058 V1 EN
frequency of V
= 50 Hz
ts
I
CTs
I
I
10459
=
×
=
50
s
50
I
CTp
EQUATION14059 V1 EN
∠I
= 0º
50s
frequency of I
= 50 Hz
50s
I
It
I
CTs
10459
=
×
=
tf
fs
I
CTp
EQUATION14062 V1 EN
∠I
= 0º
tfs
frequency of I
= 50 Hz
tfs
•
Check that the service values (VOLTAGE, CURRENT, R(%), X(%)) are according
to the injected quantities and that ROTORANG is close to 3.14 rad. For this particular
injection the service values are:
•
VOLTAGE = 1.58 kV
•
CURRENT = 20918 A
•
R = 1.08%
•
X = 7.85%
•
ROTORANG = -3.04 rad
Testing functionality by secondary injection
0 1
.
1 1 1435
.
11 44
.
V
=
×
×
=
13 8
.
59 33
.
=
=
arctan
82. . 14°
8 19
.
1
= .
1 162
A
×
9000
1
1 162
.
A
×
=
9000
Section 11
(Equation 37)
(Equation 38)
(Equation 39)
(Equation 40)
113
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