ABB OmniCore V250XT Type B - Page 80

characteristics out of standard limits. To some extent, isolation transformers
will filter out harmonics, spikes and surges.
For further information refer to regional power supply standards.
Allowed isolation transformer types
The following isolation transformer types are allowed by ABB:
Wye-Wye isolation transformer (Y /Y)Delta-Wye isolation transformer (△/Y)
xx1700001319
xx1700001318
A Primary/input
B Secondary/output
80 Product manual - OmniCore V250XT Type B
3HAC087112-001 Revision: A
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3 Installation and commissioning
3.5.3 Power supply system requirements
Continued