Hi I am installing a UPS with an external bypass system in the bypass I am looking to install a CVT to maintain a regulated voltage when the UPS is out of service. When the UPS is in service the CVT will be energised but unloaded will this have any detrimental effect to lifetime of the CVT?
Hi looking to tap down two identical 11kV/415V transformers these will be done isolated one at a time, however they will need to be momentarily parallelled while they are at different taps I know the risk of circulating currents and fault rating risk of parallel fed LV switchboards. How can I...
I have an ABB 30kw VFD ACS550 380V, I am in the process of specifying a motor, can I use a standard 30kw motor or would I need an increased motor kW rating ie 37kW. What do I need to consider?
