ABB REG670 Commissioning Manual page 177

1MRK 502 073-UUS A
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Commissioning manual
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
VT s ,
V V
1 1 .
= × ×
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.
t
I = 0 A
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
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
t
I
CTs
I I 10459
= × =
50 s 50
I
CTp
EQUATION14059 V1 EN-US
∠I
= 0º
50s
frequency of I = 50 Hz
50s
Testing functionality by secondary injection
0 1 .
V
1 1 1435 . 11 44 .
= × × =
13 8 .
59 33 .
  
arctan 82. . 14°
 =  =

8 19 .
  
0 1 .
1 1 1435 . 11 44 . V
= × × =
13 8 .
59 33 .
  
arctan 82. . 14°
 =  =

8 19 .
  
1
= . 1 162 A
×
9000
Section 13
GUID-53964189-42E4-4C4B-BFCD-64888BA938EF v1
(Equation 41)
(Equation 42)
(Equation 43)
(Equation 44)
(Equation 45)
171