ABB REC 561 - Page 30

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