Hitachi Relion 670 Series Commissioning Manual page 149

1MRK506371-UUS Rev. M
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
=
ts
EQUATION14069 V1 EN-US
Ð
V
EQUATION14068 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: the protection function does not issue either start or trip.
After each test it is possible to download and study the related disturbance recording.
Line distance protection REL670
Commissioning manual
V
,
VT s
1 1 . 1 1 5899 .
V
× × = ×
t RvsZ ,
V
,
VT p
æ ö
ReverseX
= ç ÷ -
arctan 180
è ø
ts
ReverseR
= 50 Hz
ts
1
I
CTs 10459
I
= × = ×
50
I 9000
CTp
= 0º
= 50 Hz
50s
I 1
CTs
I 10459
= × = ×
tf
I 9000
CTp
= 180º
= 50.5 Hz
tfs
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0 1 .
47 02 .
V
× =
13 8 .
æ ö
29.60
° = ç ÷ -
arctan 180
è ø
0.29
= . 1 162
A
1 162 . A
=
Testing functionality by secondary injection
° = - °
90.56
GUID-7C9F1163-0186-41DA-9D5F-DDA589323B9F v1
Section 11
(Equation 73)
(Equation 74)
(Equation 75)
(Equation 76)
143