In our plant, electric system consists of 35kV/6kV/400V. (Current voltages are approximately 35kV/6.2kV/413V)
We ran the MV motor (6kV, 3100kw) connected to soft starter. It took around 14Sec until bypass mode and once current reached at the starting current(around 1540A), it stayed at the...
Hi, folks.
In our plant, we have 6kV switchgear A/B and there is NO bus tie. And the bus tie is supposed to be closed when there's undervoltage in upstream of A or B (called ATS : Auto Transfer System).
We got an undervoltage trip accident recently on 6kV swichgear A(due to cable problem on...
We've got connection as following in our substation.
6/0.4kV Transformer (N is grounded) -----------BUS BAR(U/V/W/N)-------------LV Switchgear
And our system's Neutral is grounded.
In SWGR A side, all voltage measurement is OK.
But we have some problem on voltage measured from SWGR B Side...
We're running the motor (300kW) and people have tried to get rid of vibration on it.
I've though that vibration is only about mechanical part and nothing to do with electric.
Somebody asked me if there is any elements in terms of electric that need to be considered.
Do you think there is any...
We are planning to install the diesel generator in oil refinery plant(standby 185kW) with 350 liter integral tank located on the bottom of generator.
We're gonna install it near substation where 35/6kV transformers are installed nereby.
Now I'm looking for any international code regarding...
In our plant, we have 6kV compressor connected to VSD.
And I got some question regarding current discrepancy between VSD and Switchgear.
I found that during compressor operation, the current indicated in Switchgear (21A) is lower than in VSD(28A).
If the current in VSD is lower then I would...
