Airconditioners and circuit breakers tripping//urgent\\
Hi,
Im writing from India.
I got 4 1.5 tonne carriers split acs installed.carrier 1.5 tonne durakool.
BTU per hours 18000.power consumption 1990 watts.eer 9.0.
I have a three phase circuit board installed with individual 32 amp mcbs for acs and one single 40 amp elcb on each phase.
Initially I had a 20amp mcb for acs.I have two acs running per phase.
The problem I am facing is that after the 3 acs run for quite a few hours I am having a problem of the mcb and elcb tripping in one phase despite equal distribution of power.
Sometime the main circuit breaker which is 40amps also trips after 3 acs running for quite some time at night.
The electrical company whish installed the wiring have checked my wires again and again.They replaced the ac mcbs from 20amps with 32amps but still the circuit breaker is tripping.
Now they are suggesting calling the ac guys to check the power consumed.The acs are new.Please advise as to where the fault could lie.
Also if I call the ac guys please tell me what all should they check so that I can tell the same.
This is urgent.