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Can the PT windings' polarities be swapped without affecting the measurements ?

Both the primary and the secondary PTs have been reversed for ease of installations in some cases as shown below. 

Normal PT setup                                                                                     Both of PTs primary and secondary sides are reversed

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All Powerlogic devices that need a set of PTs 

Swapping the polarity at both the primary and secondary sides of the PT as shown in above diagram cancels the effect - the signal will not be inverted and the meter should be able to monitor the system as designed.  However, if only one of the sides is swapped, the signal will be inverted and the meter might not read the correct voltage values. 
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