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Heller 1800 exl wiring

Views: 2549

#77731

Heller 1800 exl wiring | 14 June, 2017

hello everyone,

I got a Heller reflow oven that operates at 3x240V and a delta-delta transformer since my grid is 3x380V. the problem I have right now is that there is no neutral line at delta-delta transformer, also there is no neutral line at oven side too, and I dont know how to setup 3 phase 3 wire connection. when I try to turn on machine nothing happens. is it possible that phase sequencing is wrong? or it could be something else?

thank you

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#77738

Heller 1800 exl wiring | 14 June, 2017

1. Why isn't an electrician doing this?

2. Did you measure phase-to-phase voltage between each phase at the machine?

3. Phase rotation only affects the 3-phase motors. If it's out of sequence, the motors will spin backwards but everything else should work fine.

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#77743

Heller 1800 exl wiring | 15 June, 2017

If machine serial tag referring to 3Ph, 208-240V then you cannot apply 3Ph, 380V. In order to use 3Ph, 380V supply you have, machine needs to be retrofitted to work with this voltage. If you apply 380V without voltage conversion, you will damage some of electrical system on this machine. Heller machine will work on delta, without Neutral. Heller machine is equipped to work with 3 Line+Ground. Please contact ServiceNJ@hellerindustries.com with oven model and serial# to get help.

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#77880

Heller 1800 exl wiring | 21 June, 2017

Thank you Bilal, i am aware that you can't run 3x240 machine at 3x380V, that is why i have delta-delta transformer. It was phase sequence after all, and machine is now running.

Thank you all for your help.

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