ABB RELION 670 Series Commissioning Manual page 127

1MRK 505 345-UEN B
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
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
ts
EQUATION14065 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
EQUATION14065 V1 EN-US
V
∠
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 2 when trip conditions
are fulfilled.
Commissioning manual
V
VT s ,
1 1 . V 1 1 1435 .
= × × = ×
t RZ , 1
V
VT p
,
ForwardX
 
arctan
=  =

ts
ForwardR
 
= 50 Hz.
t
= 0 A
= 0 A
V
VT s ,
1 1 . V 1 1 1435 .
= × × = ×
t RZ , 1
V
VT p ,
ForwardX
 
arctan
=  =

ts
ForwardR
 
= 50 Hz
t
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 .
11 44 . V
× =
13 8 .
59 33 .
 
arctan 82. . 14°
 =

8 19 .
 
0 1 .
11 44 . V
× =
13 8 .
59 33 .
 
arctan 82. . 14°
 =

8 19 .
 
= . 1 162 A
1 162 . A
=
Testing functionality by secondary injection
GUID-53964189-42E4-4C4B-BFCD-64888BA938EF v1
(Equation 41)
(Equation 42)
(Equation 43)
(Equation 44)
(Equation 45)
(Equation 46)
Section 10
121