Test Of The Boundary Between Zone 1 And Zone 2, Which Is Defined By The Parameter Reachz1 - ABB REG670 Commissioning Manual

Section 13
Testing functionality by secondary injection
13.4.5.3
170
Test of the boundary between zone 1 and zone 2, which is defined by
ReachZ1
the parameter
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
VT s ,
V 1 1 . V
= × ×
ts t RZ , 1
V
VT p ,
EQUATION14065 V1 EN-US
ForwardX

V arctan
∠ =

ts
ForwardR

EQUATION14058 V1 EN-US
frequency of V = 50 Hz
ts
I
CTs
I I 10459
= × =
50 s 50
I
CTp
EQUATION14059 V1 EN-US
∠I
= 0º
50s
frequency of I = 50 Hz
50s
I
CTs
It I 10459
= × =
tf
fs
I
CTp
EQUATION14062 V1 EN-US
∠I
= 0º
tfs
frequency of I = 50 Hz
tfs
• 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
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
0 1 .
1 1 1435 . 11 44 . V
= × × =
13 8 .
59 33 .
  
arctan 82. . 14°
 =  =

8 19 .
  
1
= . 1 162 A
×
9000
1
1 162 . A
× =
9000
1MRK 502 073-UUS A
GUID-BE180E07-7D4B-4842-81FB-244DE8897430 v1
GUID-17F6AC8D-1F57-4245-A61D-776D469DD153 v1
GUID-3D42E43D-873E-4271-9AAF-3B2789FF3B17 v1
(Equation 37)
(Equation 38)
(Equation 39)
(Equation 40)
Commissioning manual