ABB SYN 5201 Operating Instructions Manual page 35

Operating Instructions
4.2 Parameter settings
4.2.1 Parameter group Actual Value Calibration
Nominal voltage Un
The nominal voltage is set in volts. The nominal voltage is plant-dependent. It is typically
58 (100/ 3 ); 64 (110/ 3 ); 100; 110 VAC, but can also have a different value.
Nominal frequency fn
The nominal frequency can have the following values: 50 or 60 Hz.
2
In the 16 /
Voltage tuning  UOffset
During the test function for the parallelling time, TEST t on,  U is measured in
connected status. The value can be accepted for the setting of  U Offset.
The value  U can also be tuned without TEST in that one reads off the actual value  U
in connected status and enters it with inverted +/- sign in the parameter  U Offset and
saves this. Check once again whether  U is now 0 %.
Angle tuning  Offset
Small phase shifts (caused by measuring inaccuracy) can be compensated by this
parameter.
With bigger phase shifts, e.g. caused by the connection group of a transformer between
circuit breaker and measuring vt, a compensation vt has to be used for compensation. It
has to be noted that common synchronizing instruments (synchroscope) do not have a
compensation feature, for that reason they require a compensation vt anyway (see also
section 5.2).
An incorrectly calculated sign or incorrectly calculated amount can lead to damage to
Caution
the plant! Before paralleling is carried out for the first time, it is essential to ensure that
the setting is correct.
abb
ABB Switzerland Ltd
Template: CHIND Techn doc stand, A4 P de, R1.DOT; Filename: 3BHS109762E01 D.doc; Print: 12/6/2011 5:48:00 PM; Save: 12/1/2011 2:37:00 PM; CHIND No. 3BHS109763 ZAB D14 Rev. -; I-Q
Hz version, this parameter cannot be adjusted.
3
Document No Art Part
3BHS109762 E01
SYN 5201/SYN 5202
Language Revision page
en D 35