Siemens SENTRON PAC4200 - Page 24

Description
3.3 Measured variables
SENTRON PAC4200
24 Manual, 09/2008, A5E02316180B-01
Designation Root-mean-
square value
Average over 3
phases
Sliding window
demand
Inst Min Max Inst Min Max DMD Min Max
Σ Unit
THD voltage for ph-n referred to the fundamental
THD
V a
/ THD
V b
/ THD
V c
✓ ✓ [%]
THD voltage for ph-ph referred to the fundamental
THD
V a-b
/ THD
V b-c
/ THD
V c-a
✓ ✓ [%]
THD current referred to the fundamental
THD
I a
/ THD
I b
/ THD
I c
✓ ✓ [%]
Apparent energy
6)
E
ap T
✓ [VAh]
Active energy import / export
6) 7)
E
a T imp
, E
a T exp
✓ [Wh]
Reactive energy import / export
6) 7) 8)
E
r T imp
, E
r T exp
✓ [VARh]
Unbalance voltage
Unbal
V
✓ [%]
Unbalance current
Unbal
I
✓ [%]
Current distortion
I
d a
, I
d b
, I
d c
✓ ✓ [A]
Fundamental voltage ph-n
h
1 a
, h
1 b
, h
1 c
✓ [V]
Harmonic content of the 3rd, 5th, 7th, ... 31st harmonics for the ph-n voltage referred to the fundamental
h
3 a-n
… h
31 a-n
h
3 b-n
… h
31 b-n
h
3 c-n
… h
31 c-n
✓ ✓ [%]
Fundamental voltage ph-ph
h
1 a-b
, h
1 b-c
, h
1 c-a
✓ [V]
Harmonic content of the 3rd, 5th, 7th, ... 31st harmonics for the ph-ph voltage referred to the fundamental
h
3 a-b
… h
31 a-b
h
3 b-c
… h
31 b-c
h
3 c-a
… h
31 c-a
✓ ✓ [%]
Current of the fundamental and current of the 3rd, 5th, 7th, ... 31st harmonics in the phase conductor
I
1 a
… I
31 a
I
1 b
… I
31 b
I
1 c
… I
31 c
✓ ✓ [A]
Universal counter
✓
9)