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I work in a unit that has uses large ovens to cure latex. Each oven was handbuilt in Poland, and each is slightly different
They have the same configuration as the OP, with the 3 elements with the outputs connected to a star point, so it's not particularly uncommon.
Like Rob said, just make sure you have some sort of phase monitoring protection, but I suspect if it has its original control panel then it should already be in place. if its been modified then you may want to take a closer look.
I've been installing these "Europa ECPF05" to the supply of each oven, and switching the coil circuit through it.
It just adds additional phase failure/undervoltage protection to the each of the ovens I work on because quite often the whole Industrial estates incoming 3Phase supply is unbalanced, they get alot or surges and the DNO are always out at the transformer.
They have the same configuration as the OP, with the 3 elements with the outputs connected to a star point, so it's not particularly uncommon.
Like Rob said, just make sure you have some sort of phase monitoring protection, but I suspect if it has its original control panel then it should already be in place. if its been modified then you may want to take a closer look.
I've been installing these "Europa ECPF05" to the supply of each oven, and switching the coil circuit through it.
It just adds additional phase failure/undervoltage protection to the each of the ovens I work on because quite often the whole Industrial estates incoming 3Phase supply is unbalanced, they get alot or surges and the DNO are always out at the transformer.
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