ABB RELION REG670 Commissioning Manual page 144

Section 12
Testing functionality by secondary injection
frequency of
• 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:
•
•
•
•
•
Note that these values identify a point inside the lens characteristic, in the zone 2, that is
close to the point RE. 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
ts
EQUATION14063 V1 EN-US
V
∠
EQUATION14058 V1 EN-US
frequency of V
I
50s
I
tfs
• State 2: main test step.
Define the following three-phase symmetrical quantities (the phase angle is related to
phase L1):
V
ts
EQUATION14063 V1 EN-US
V
∠
EQUATION14058 V1 EN-US
frequency of V
I
50 s
EQUATION14059 V1 EN-US
∠I
50s
frequency of I
138
I
= 50 Hz
tf
VOLTAGE = 10.74 kV
CURRENT = 20918 A
R = 7.37%
X = 53.40%
ROTORANG = -3.09 rad
V
VT s ,
0 9 . V 0 9 11931 .
= × × = ×
t FwdZ ,
V
VT p ,
ForwardX
 
arctan
=  =

ts
ForwardR
 
= 50 Hz
ts
= 0 A
= 0 A
V
VT s ,
V
0 9 . 0 9 11931 .
= × × = ×
t FwdZ ,
V
VT p ,
ForwardX
 
arctan
=  =

ts
ForwardR
 
= 50 Hz
ts
I 1
CTs
I 10459
= × = ×
50
I 9000
CTp
= 0º
= 50 Hz
50s
0 1 .
77 81 . V
× =
13 8 .
59 33 .
 
arctan 82. . 14°
 =

8 19 .
 
0 1 .
V
77 81 .
× =
13 8 .
59 33 .
 
arctan 82. . 14°
 =

8 19 .
 
= . 1 162 A
1MRK 502 067-UEN B
GUID-028D7D67-B61A-4A7F-9978-4A0A41231B04 v1
(Equation 31)
(Equation 32)
(Equation 33)
(Equation 34)
(Equation 35)
Commissioning manual