Virtual sensor reports W or VA instead of Kw or KVA after StruxureWare Central upgrade.
StruxureWare Central / StruxureWare Data Center Expert.
Upgrading from StruxureWare Central 7.0 to StruxureWare Data Center Expert 7.2.x
Changes in device definition Files (DDF)
KW and KVA virtual sensors based upon ION7x50 devices may change to W and VA after upgrading to StruxureWare Central 7.2.x. You may also be unable to add any new sensors to this virtual sensor. The only workaround for this issue is to delete and recreate the virtual sensor.