Siemens SINAMICS PERFECT HARMONY GH180 - One Cycle Protection

([FHVVLYH'ULYH
/RVVHV$ODUP
,QSXW
3RZHU
8QGHU9ROWDJH
/LPLW
6LQJOH3KDVLQJ
/LPLW
2QH&\FOH
3URWHFWLRQ/LPLW
,QSXW3RZHU
)DFWRU
7KHUPDO2YHUORDG
/LPLW
=HUR
6HT
&RPS
,QSXW
3RZHU
,QSXW
3RZHU
;IUPU
7KHUPDO
2YOG
3RZHU
)DFWRU
&DOF
2QH
&\FOH
3URWHFW
6LQJOH
3KDVLQJ
'HWHFW
8QGHU
9ROWDJH
5LGH
7KURXJK
(
XQEDODQFH
0D[
506
&DOF
2XWSXW
3RZHU
7DS
6HWWLQJ
,QSXW
3RZHU
&DOF
506
&DOF
506
&DOF
&XUUHQW
)HHGEDFN
9ROWDJH
)HHGEDFN
8QEDODQFH
9ROWDJH
&DOF
'ULYH
/RVVHV
&DOF

7R
'4

7R
'4
(
(
,
UPV
UPV
UPV
>@
>@
>@
>@
˭


>@
>@
>@
>@
>@
3//
˶
X


ː
,
D
,
F
,
E
,
DX
,
FX
,
EX
(
DX
(
FX
(
EX
ˆ
X
ˆ
D
ˆ
D
,
D
,
F
,
E
(
D
(
G
(
F
(
E
(
D
(
DEF
,
DEF
(
F
(
E
9
D
9
F
9
E
,
T
(
T
(

,
G
Numbers within square brackets show the parameter ID for the corresponding function.
Figure 7-15 Input Side Monitoring
Table 7-2 Symbols used in Figure Input Side Monitoring
Name Description
E
rms
Average rms voltage (of all three phases)
E
d
Amplitude of voltage taking the transformer tap setting into account. This represents the actual voltage
being provided to the cells. If the tap setting is +5%, E
d
will be 5% smaller than E
rms
, and vice versa.
E
a,b,c
Zero sequence (DC o󹪜set) corrected input phase voltages
ω
u
Input frequency
θ
u
Angle of input-side 󹪞ux
I
rms
Average rms current (of all three phases)
I
d
Real component of input current
I
q
Reactive component of input current
I
a,b,c
Single-phase components of input current
7.9.2 One Cycle Protection
One cycle protection is also referred to as excessive input reactive current detection.
Operating the Control
7.9 Input Side Monitoring and Protection
NXGPro+ Control Manual
Operating Manual, A5E50491925A 203