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1MRK 511 409-UUS Rev. K
Execution of the dynamic test
The test may be performed by using two states of a sequence tool that is a basic feature of test sets.
•
State 1: pre-test condition.
Steady voltage and current are applied in order to get a steady high impedance, that is a point in the
plane R-X which is far away from the lens characteristic. Define the following three-phase
symmetrical quantities (the phase angle is related to phase L1):
V
=
ts
EQUATION14066 V1 EN-US
∠
V
ts
EQUATION14058 V1 EN-US
frequency of V
I
50s
I
= 0 A
tfs
•
State 2: main test step.
Define the following three-phase symmetrical quantities (the phase angle is related to phase L1):
V
=
ts
EQUATION14066 V1 EN-US
∠
V
ts
EQUATION14058 V1 EN-US
frequency of V
I
50
s
EQUATION14059 V1 EN-US
∠I
50s
frequency of I
It
fs
EQUATION14062 V1 EN-US
∠I
tfs
frequency of I
Expected result: start of the protection function and trip in zone 1 when trip conditions are fulfilled.
Phasor measurement unit RES670
Commissioning manual
V
VT s
,
0 9
.
0 9 1435
.
V
×
×
=
×
,
1
t RZ
V
VT p
,
ForwardX
=
=
arctan
arctan
ForwardR
= 50 Hz
ts
= 0 A
V
VT s
,
0 9
.
V
0 9 1435
.
×
×
=
×
t RZ
,
1
V
VT p
,
ForwardX
=
=
arctan
arctan
ForwardR
= 50 Hz
ts
1
I
CTs
10459
I
=
×
=
×
50
I
9000
CTp
= 0º
= 50 Hz
50s
I
1
CTs
I
10459
=
×
=
×
tf
I
9000
CTp
= 180º
= 49.5 Hz
tfs
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0 1
.
9 36
.
V
×
=
13 8
.
59 33
.
=
82. . 14°
8 19
.
0 1
.
9 36
.
V
×
=
13 8
.
59 33
.
=
82. . 14°
8 19
.
= .
1 162
A
1 162
.
A
=
Section 11
Testing functionality by secondary injection
GUID-98707DB3-9A1A-4458-9704-25F8FCB94B79 v1
(Equation 51)
(Equation 52)
(Equation 53)
(Equation 54)
(Equation 55)
(Equation 56)
101
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