ABB REC 561 User Manual page 30

ABB Network Partner AB
Version 1.0-00
Table 9: Option: Increased Measuring Accuracy
Function
frequency
voltage
current
active power
*)
P
Requirements and basic technical
data - REC 561
active power at U = U
, I = I
r r
Nominal range
(0,95-1,05) x f
r
(0,8-1,2) x U , f = 50 Hz
r r
(0,2-1,2) x I , f = 50 Hz
r r
at |cos ϕ| > 0,9, f
= 50 Hz
r
0,8* U < U < 1,2*U
r r
0,2*I < I < 1,2*I
r r
and |cos ϕ| = 1
r
Page
Accuracy
± 0,2 Hz
± 0,25 % of U at U ≤ U
r r
± 0,25 % of U at U > U
r
± 0,25 % of I at I ≤ I
r r
± 0,25 % of I at I > I
r
± 0,5 % of P at P ≤ P *)
r r
± 0,5 % of P at P > P
*)
r
2 - 25