ABB RELION REX640 Technical Manual page 509

1MRS759142 C
REX640
Technical Manual
k P
⋅
ref
t s [ ] =
P
cal
GUID-265A0A26-D3C8-41C0-B921-AF61CBA50458 V1 EN
t[s] operation time in seconds
k set value of
P set value of
ref
P calculated residual power
cal
Time multiplier
Reference power
Section 4
Protection functions
(Equation 64)
503