said by Zapppp :
But there's no primary neutral wire. The primary is connected between the primary hot and ground. The secondary neutral is also grounded.
There most certainly is, as the normal way to connect a dual busing transformer in a multi-grounded neutral (MGN) system is to run a conductor from the neutral primary bushing to the MGN that conductor will also be bonded to the poles ground.
Note carefully in the shot above and you can see the conductor leaving the primary neutral bushing on the left of the lid, it then travels to the pole and can be seen just below the lid and the upper bracket and from there it travels down and is connected to the MGN.
Now in the upper shot above you can see the secondary bushing is bonded to the transformer case and on the upper right is the primary neutral bushing though you cannot see the conductor going toward the rear of the transformer, in the lower shot you can see the conductor from the primary neutral bushing of the same transformer is connected to the MGN and is C crimped to the pole ground, as is the transformer case.
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