Siemens siprotec SJ62 User Manual page 185

2 Functions
Motor Starting Rec-
ognition
183
Example:
Machine: I = 483 A
Nom Mach
at Θ
=1.15 I
I
max Mach Nom
Θ
= 199.4° F or 93° C Temperature at I
Nom Mach
τ
= 600 s (thermal time constant of the machine)
th
Current transformer: 500 A / 1 A
The motor starting is detected when setting I MOTOR START at address 1107 is ex-
ceeded. Information on how to perform the configuration is given under "Recognition
of Running Condition (only for motors)" in Subsection2.1.3.2.
= 104 °F or 40 °C
K
Nom Mach
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015