ABB REG670 2.0 IEC - Test of the Boundary between Zone 1 and Zone 2, Which Is Defined by the Parameter Reachz1

Define the following three-phase symmetrical quantities (the phase angle is
related to phase L1):
V V
V
V
V
ts t FwdZ
VT s
VT p
= × × = × × =0 9 0 9 11931
0 1
13 8
77 81. .
.
.
.
,
,
,
EQUATION14063 V1 EN (Equation 33)
∠ =






=






=V
ForwardX
ForwardR
ts
arctan arctan
.
.
59 33
8 19
82..14°
EQUATION14058 V1 EN (Equation 34)
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 35)
∠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 36)
∠I
tfs
= 180º
frequency of I
tfs
= 49.5 Hz
Expected result: start of the protection function and trip in zone 2, when trip conditions
are fulfilled.
12.4.5.3 Test of the boundary between zone 1 and zone 2, which is defined by
the parameter
ReachZ1
The trajectory of the impedance traverses the lens characteristic in
zone 2
Preliminary steady state test at 50 Hz
• Go to Main menu/Test/Function status/Impedance protection/
OutOfStep(78,Ucos)/OOSPPAM(78,Ucos):1/Outputs to check the available
service values of the function block OOSPPAM.
• Apply 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 (Equation 37)
∠ =






=






=V
ForwardX
ForwardR
ts
arctan arctan
.
.
59 33
8 19
82..14°
EQUATION14058 V1 EN (Equation 38)
1MRK502053-UEN B Section 12
Testing functionality by secondary injection
Generator protection REG670 2.0 IEC 131
Commissioning manual