V
V
V
V
V
ts
t RZ
VT s
VT p
=
×
×
=
×
×
=
1 1
1 1 1435
0 1
13 8
11 44
1
.
.
.
.
.
,
,
,
EQUATION14065 V1 EN-US
(Equation 37)
∠
=
=
=
V
ForwardX
ForwardR
ts
arctan
arctan
.
.
59 33
8 19
82..14
°
EQUATION14058 V1 EN-US
(Equation 38)
frequency of V
ts
= 50 Hz
I
I
I
I
A
s
CTs
CTp
50
50
10459
1
9000
1 162
=
×
=
×
=
.
EQUATION14059 V1 EN-US
(Equation 39)
∠
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-US
(Equation 40)
∠
I
tfs
= 0º
frequency of I
tfs
= 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 = 1.58 kV
•
CURRENT = 20918 A
•
R = 1.08%
•
X = 7.85%
•
ROTORANG = -3.04 rad
Note that these values identify a point inside the lens characteristic, in the Zone 2,
that is close to the boundary between zone 1 and zone 2. The START is issued, but
no TRIP is performed.
Execution of the dynamic test
GUID-53964189-42E4-4C4B-BFCD-64888BA938EF v1
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 that 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 RZ
VT s
VT p
=
×
×
=
×
×
=
1 1
1 1 1435
0 1
13 8
11 44
1
.
.
.
.
.
,
,
,
EQUATION14065 V1 EN-US
(Equation 41)
1MRK 506 383-UEN A
Section 9
Testing functionality by secondary injection
Line distance protection REL650 2.2 IEC
91
Commissioning manual
Содержание REL650 series
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