Western Australian Consolidated Regulations

ELECTRICITY DISTRIBUTION REGULATIONS 1997 - SCHEDULE 4

[r. 22]

        1.         To calculate the loss factor for a distribution connection which is an exit point a corporation must follow the following steps:

            (a)         the corporation must determine the line losses assuming the distribution connection was not there and assuming feeder maximum load;

            (b)         the corporation must determine the line losses assuming only the distribution connection was there and assuming feeder maximum load;

            (c)         the corporation must determine the total line losses assuming all the distribution connections are there (including the distribution connection for which the loss factor is being determined) and assuming feeder maximum load;

            (d)         the corporation must allocate a share of the total line losses calculated under step (c) to the distribution connection for which the loss factor is being determined based on the ratio of the result of step (b) and the sum of the results of steps (a) and (b);

            (e)         the corporation must calculate the loss factor for the distribution connection by applying the following formula:

                where —

        A (in kW)         is the share of the total line losses allocated to the distribution connection under step (d);

        B (in kW)         is the contract maximum demand for the distribution connection.

        2.         To calculate the loss factor for a distribution connection which is an entry point a corporation must follow the following steps:

            (a)         the corporation must determine the line losses assuming the distribution connection was not there and assuming feeder maximum load;

            (b)         the corporation must determine the total line losses assuming all the distribution connections are there (including the distribution connection for which the loss factor is being determined) and assuming feeder maximum load;

            (c)         the corporation must calculate the loss decrease or increase for the distribution connection for which the loss factor is being determined by subtracting the result of step (b) from the result of step (a);

            (d)         the corporation must calculate the loss factor for the distribution connection by applying the following formula:

                where —

        A (in kW)         is the loss increase or decrease calculated for the distribution connection under step (c);

        B (in kW)         is the declared sent‑out capacity for the distribution connection.

        [Schedule 4 amended in Gazette 31 Dec 1998 p. 7403‑4; 31 Mar 2006 p. 1316.]