A
Hello CSA,
I have a farming facility with 8 diesel gen sets in parallel. 2 pcs of 2000kVA, 1 pc of 1250kVA, 2 pcs of 820kVA and 3 pcs of 500kVA all synchronised and powering an irrigation distribution and a factory plus domestic houses.
We have experienced frequent power trips when we run the system at 0.95 pf but when we reduced it to 0.85 pf it is stable.
I am told that this is due to reverse power when a large load is suddenly connected to the system. The load is all induction motors and lighting. A pump station can have 6x 160kW motors which could be started in quick succession despite instructions to the contrary.
Is there something available to control this reverse power because we can save a lot of diesel by getting the pf up higher.
How exactly does sudden load changes affect pf and why does it cause the whole system to trip when it is set higher?
I have a farming facility with 8 diesel gen sets in parallel. 2 pcs of 2000kVA, 1 pc of 1250kVA, 2 pcs of 820kVA and 3 pcs of 500kVA all synchronised and powering an irrigation distribution and a factory plus domestic houses.
We have experienced frequent power trips when we run the system at 0.95 pf but when we reduced it to 0.85 pf it is stable.
I am told that this is due to reverse power when a large load is suddenly connected to the system. The load is all induction motors and lighting. A pump station can have 6x 160kW motors which could be started in quick succession despite instructions to the contrary.
Is there something available to control this reverse power because we can save a lot of diesel by getting the pf up higher.
How exactly does sudden load changes affect pf and why does it cause the whole system to trip when it is set higher?