ABB REG670 - Page 177

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
GUID-53964189-42E4-4C4B-BFCD-64888BA938EF v1
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 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-US (Equation 41)
∠ =






=






=V
ForwardX
ForwardR
ts
arctan arctan
.
.
59 33
8 19
82..14°
EQUATION14058 V1 EN-US (Equation 42)
frequency of V
t
= 50 Hz.
I
50s
= 0 A
I
tfs
= 0 A
• State 2: main test step.
Define 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-US (Equation 43)
∠ =






=






=V
ForwardX
ForwardR
ts
arctan arctan
.
.
59 33
8 19
82..14°
EQUATION14058 V1 EN-US (Equation 44)
frequency of V
t
= 50 Hz
I I
I
I
A
s
CTs
CTp
50 50
10459
1
9000
1 162= × = × = .
EQUATION14059 V1 EN-US (Equation 45)
∠I
50s
= 0º
frequency of I
50s
= 50 Hz
1MRK 502 073-UUS A Section 13
Testing functionality by secondary injection
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062 171
Commissioning manual