29.60
arctan
180
arctan
180
90.56
0.29
ts
ReverseX
V
ReverseR
Ð
=
-
° =
-
° = -
°
æ
ö
æ
ö
ç
÷
ç
÷
è
ø
è
ø
EQUATION14068 V1 EN
(Equation 58)
frequency of V
ts
= 50 Hz
I
I
I
I
A
s
CTs
CTp
50
50
10459
1
9000
1 162
=
×
=
×
=
.
EQUATION14059 V1 EN
(Equation 59)
∠
I
50s
= 0º
frequency of
I
50s
= 50 Hz
It
I
I
I
A
fs
CTs
CTp
tf
=
×
=
×
=
10459
1
9000
1 162
.
EQUATION14062 V1 EN
(Equation 60)
∠
I
tfs
= 0º
frequency of
I
tf
= 50 Hz
•
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 = 5.31 kV
•
CURRENT = 20918 A
•
R = -0.26%
•
X = -26.65%
•
ROTORANG = -3.06 rad
Note that these values identify a point inside the lens characteristic in zone 1 that
is close to the point SE. The START is issued, but no TRIP is performed.
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
V
V
V
V
ts
t RvsZ
VT s
VT p
=
×
×
=
×
×
=
0 9
0 9 5899
0 1
13 8
38 47
.
.
.
.
.
,
,
,
EQUATION14067 V1 EN
(Equation 61)
29.60
arctan
180
arctan
180
90.56
0.29
ts
ReverseX
V
ReverseR
Ð
=
-
° =
-
° = -
°
æ
ö
æ
ö
ç
÷
ç
÷
è
ø
è
ø
EQUATION14068 V1 EN
(Equation 62)
Section 12
1MRK502053-UEN B
Testing functionality by secondary injection
136
Generator protection REG670 2.0 IEC
Commissioning manual
Содержание REG670 2.0 IEC
Страница 1: ...Relion 670 series Generator protection REG670 2 0 IEC Commissioning manual ...
Страница 2: ......
Страница 16: ...10 ...
Страница 30: ...24 ...
Страница 58: ...52 ...
Страница 62: ...56 ...
Страница 76: ...70 ...
Страница 90: ...84 ...
Страница 94: ...88 ...
Страница 108: ...102 ...
Страница 246: ...240 ...
Страница 252: ...246 ...
Страница 267: ...261 ...