Siemens SIPROTEC 7UT613 series Manual page 242

2 Functions
242
If no instructions of the manufacturer are available, the preset standard characteristic
should be used; this corresponds to a standard Siemens transformer (figure 2-100).
Figure 2-101 Tripping time characteristic of the overexcitation protection
Otherwise, any tripping characteristic can be specified by point-wise entering the
delay times for the 8 predefined U/f-values:
Address 4306 t(U/f=1.05)
Address 4307 t(U/f=1.10)
Address 4308 t(U/f=1.15)
Address 4309 t(U/f=1.20)
7UT613/63x Manual
C53000-G1176-C160-2