ABB RET670 Commissioning Manual page 133

1MRK 504 154-UUS B
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.
Commissioning manual
V
VT s ,
0 9 . V 0 9 1435 .
× × = ×
t RZ
, 1
V
VT p ,
ForwardX
 
arctan arctan
=  =

ForwardR
 
= 50 Hz
ts
= 0 A
V
VT s ,
V
0 9 . 0 9 1435 .
× × = ×
t RZ , 1
V
VT p ,
ForwardX
 
arctan arctan
=  =

ForwardR
 
= 50 Hz
ts
I 1
CTs
I 10459
= × = ×
50
I
9000
CTp
= 0º
= 50 Hz
50s
I
1
CTs
I 10459
= × = ×
tf
I 9000
CTp
= 180º
= 49.5 Hz
tfs
0 1 .
9 36 . V
× =
13 8 .
59 33 .
 
82. . 14°
 =

8 19 .
 
0 1 .
V
9 36 .
× =
13 8 .
59 33 .
 
82. . 14°
 =

8 19 .
 
= . 1 162 A
1 162 . A
=
Testing functionality by secondary injection
(Equation 51)
(Equation 52)
(Equation 53)
(Equation 54)
(Equation 55)
(Equation 56)
Section 10
127