Voltage Transformer Supervision (60Vts); Or 2 Phase Vt Fail; Figure 3.2-1 Voltage Transformer Supervision; Table 3.2-1 60Vts Voltage Setting - Siemens 7PG2113 Technical Manual

3.2 Voltage Transformer Supervision (60VTS)

Voltage Inputs:
Current Inputs:
Disable:
Map Pickup LED:
3.2.1

1 or 2 Phase VT fail

Apply 3P balanced nominal current and voltage. Reduce 1 phase voltage until VTS operates, record voltage
reduction level.
60VTS V Setting
increase the voltage until VTS resets. Increase current on 1 phase by 110% of 3x the 60VTS I setting. Reduce
voltage as above and check for no operation. Return voltage to nominal. Increase current on 1 phase by 90% of
3x the 60VTS I setting. Reduce voltage as above and check for VTS operation
60VTS I Setting
©2010 Siemens Protection Devices Limited

Figure 3.2-1 Voltage Transformer Supervision

V (V ), V (V ), V (V
L1 A L2 B L3
I (I ), I (I ), I (I ),
L1 A L2 B L3 C
27, 47, 59N
60VTS - Self Reset
Setting x 3
Table 3.2-1 60VTS Voltage Setting
Setting x 3 110% of Setting x 3
No VTS □
Table 3.2-2 60VTS Current Setting
7PG2113/4/5/6 Commissioning & Maintenance
)
C
Measured Voltage Reduction
90% of Setting x 3
VTS operation □
Chapter 6 Page 62 of 77