Schwatzernov
Electrical
- Sep 5, 2006
- 47
Hi,
I got the query from customer that;
they operate diesel generators(4x5.9MW)to supply power to their customer cement plant. Their customer also has 1x4MW steam turbine generator. The problem is that their customer's loads vary between 2-4 MW and customer's steam turbine runs at 4MW base load and excitation operated in power factor control mode set at 1.0 PF.
So the diesel plant always operated in zero PF condition without supplying active power to customer while MVar always flow to customer plant to support Var requirement.
when customer's STG is operating at 4MW, there is no MW export to cement plant. The diesel power plant cannot get the revenue from selling power to customer but have to export Var to customer.
when customer's STG is operating at 2-3MW, there is reversed power together with Var export to cement plant.
My customer said that they suffer from diesel fuel cost due to Var exporting to client without getting paid for MW.
I check the fuel consumption of diesel generator and it is based on kWh only. There is no relationship between fuel consumption and Var generation from any manufacturers.
So my question is that whether my customer's understanding is correct that whenever diesel generator has to generate Var, there is fuel consumption ?
Thank you for any advice.
I got the query from customer that;
they operate diesel generators(4x5.9MW)to supply power to their customer cement plant. Their customer also has 1x4MW steam turbine generator. The problem is that their customer's loads vary between 2-4 MW and customer's steam turbine runs at 4MW base load and excitation operated in power factor control mode set at 1.0 PF.
So the diesel plant always operated in zero PF condition without supplying active power to customer while MVar always flow to customer plant to support Var requirement.
when customer's STG is operating at 4MW, there is no MW export to cement plant. The diesel power plant cannot get the revenue from selling power to customer but have to export Var to customer.
when customer's STG is operating at 2-3MW, there is reversed power together with Var export to cement plant.
My customer said that they suffer from diesel fuel cost due to Var exporting to client without getting paid for MW.
I check the fuel consumption of diesel generator and it is based on kWh only. There is no relationship between fuel consumption and Var generation from any manufacturers.
So my question is that whether my customer's understanding is correct that whenever diesel generator has to generate Var, there is fuel consumption ?
Thank you for any advice.