Difference in power factor in sending end and receiveing end 1

[masinha2]

We have 132/11KV substation .One meter of EB is connected at sending end of 132KV voltage and our meter is connected at receiveing end 132KV voltage .Even though we are maintaining average power factor of receiveing end 132KV voltage around 0.92 but the average power factor of sending end is low around 0.84 .Why such huge difference in average power factor occurs .We have already checked both end meters but no fault found .I am not able to understand why such difference is coming .Also during running condition running power factor on both side is same .

 

[krisys]

If the OP has access to the "Power Agreement" document, he shall first read the document and understand the clauses. The subject issue shall be addressed based on the "Power Agreement". Otherwise, the whole exercise will be futile.

 

[7anoter4]

I agree with krisys.
From “Transformer Costing with Customers” by HydroOttawa co.
“Section 3, of the Distribution System Code, allows for the LDC (local distribution company) to charge for dedicated distribution transformer(s) for commercial and primary supplied residential services. This procedure focuses on the costing details associated with distribution transformer(s) and their sole use by a customer. This discussion does not apply to Hydro Ottawa owned transformers for multiple customers on the public road right-of-way or easements. Rental of Hydro Ottawa substation class transformers shall be reviewed separately on a case-by-case basis.”
So, if the transformer it is your property then the kWh-and power factor-has to be measured at high voltage supply side of the transformer[132 KV].If the load at 11 KV it will presents 0.92 power factor at 132KV will be 0.84.[Let’s take a 100 MVA transformer, 12.5% impedance, 60% loaded]

 

[QBplanner]

you may want to provide the 132kV line length fro sending end to the receiving end,line parameters, peak load at your substation in MW and MVA, sending end voltage, and receiveing end voltage and other network topology information. Then it would be easy to figure out what happened.

 

[QBplanner]

if teh point of coupling is at the sending end not at your receiving end, then you have to pay the loss at the POC including the radial line losses.

 

[crshears]

I'm not sure why it would necessarily be wrong for a customer to pay for the reactive losses necessary to serve his load.

I'm not saying it would be wrong, either; there is however a difference between what the quote describes and being unfairly gouged by one's supplier...and it is unclear to me based on the info provided whether or not that's what's happening in this case...which is what civil courts are helpful with.

CR

"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]