UPS’s inverter output current issue

[SoonIWill]

Hi

I have UPS 50KVA and the inverter output AC voltage is feeding a distribution panel 120/208 V 4 wires when I check UPS display it shows me that output current which is the distribution panel phases as followings phase one = 30A while Phase 2 = 0A and phase 3 = 0A is this a problem !? Shall we work to make the load almost shared on all 3 phases not only one !?

 

[tom baker]

We can help with your question but first update your profile, where or what is KSA?

 

[jaggedben]

KSA is Kingdom of Saudi Arabia.

 

[zbang]

The UPS probably doesn't care that much about balance, but it's generally a good idea.

 

[ron]

I wouldn't be surprised if a 50kVA UPS wasn't 16.6kVA per phase, so as long as you don't exceed 16.6kVA per phase, it is likely ok.

 

[qcroanoke]

Hi

I have UPS 50KVA and the inverter output AC voltage is feeding a distribution panel 120/208 V 4 wires when I check UPS display it shows me that output current which is the distribution panel phases as followings phase one = 30A while Phase 2 = 0A and phase 3 = 0A is this a problem !? Shall we work to make the load almost shared on all 3 phases not only one !?

If you add any single pole loads make sure to put them on phase 2 (B) or phase 3 (C) that will help balance.