CP-22 LINE
LOSSES REPORTS
The electricity, generated in Power
Houses, is distributed among the consumers via grid stations through 11 KV
Feeders. The total electricity generated
in Power Houses is not 100% assessed in the billing. Some losses may occur due to the following
reasons:-
TECHNICAL LOSSES:-
These are
the losses, which may occur due to continuous sparking on sub-standard
lines. This is merely because of obsolete
transmission system.
ADMINISTRATIVE LOSSES:-
Some
dishonest consumers involve in the theft of electricity i.e. physically the
electricity is consumed but not taken into account for the purpose of
billing. These losses are called as
administrative losses.
A procedure has been introduced for
accumulation of such losses. Line losses reports called as CP-22 reports are
prepared in the computer centres. These reports reflect monthly/progressive
number of units received, billed and lost in respect of each feeder. Percentage
losses are calculated on the basis of units received at feeder, sub division,
division, circle and company level.
UNITS
RECEIVED:-
These are the units sent out by the grid stations for the
purpose of distribution among the consumers.
For this purpose meters are installed against each 11 KV feeder at the
grid stations. The reading is recorded
by the SSO / in-charge of the grid station on the last date of the month
exactly at 24:00. Units received are the
difference of present reading and the reading recorded in the previous month
after proper application of multiplying factor.
UNITS
BILLED:-
The units, which are accounted for the purpose of billing in
one billing cycle, are called as units billed.
These are the units actually sold to the consumers and are taken from
the monthly billing statements at the end of each billing cycle.
UNITS
LOST:-
This is the difference of units
received from grid stations and units billed in that billing cycle in respect
of each feeder. These are the units,
which are actually lost during transmission due to technical / administrative
reasons.
The
reading of each feeder of the grid is recorded at the grid stations and is
supplied to the computer centre through following inputs:-
CP-22 B 11 KV Feeder wise units
sent out from Grid Stations.
CP-22 C Grid station meter
change/meter reading correction statement.
DISPATCH OF CP-22B PRE-ENTRY LIST:-
After
processing the additions / changes received (i.e. allotment of new feeder or
any change in feeder particulars) CP-22B pre-entry list is processed at least
five or six days prior to the date of reading.
This list acts like blank meter reading list having feeder code, name of
feeder, previous reading, meter range and multiplying factor pre-printed and
keeping the present reading, units sent out, round completion code and meter
status code column blank. CP-22B
pre-entry list is checked in the following manner before dispatch to
S.S.&T. divisions:-
- Check the billing month printed in
the list as current billing month ended
- Confirm that all the changes /
additions have been effected successfully.
- Verify the
previous reading in few cases from the readings of CP-22B of previous month.
- Check the printing quality of the
list.
CP-22B
pre-entry list is printed grid station wise.
This list is sorted according to the jurisdiction of S.S.&T.
divisions. The page numbers are recorded
in the dispatch register and sent to concerned S.S.&T. division by mail.
RECORDING OF READINGS IN CP-22B PRE-ENTRY LIST:-
After
receiving from computer centre the concerned S.S.&T. division handed over
the CP-22B pre-entry list to the SSO/In-charges of grid stations. They record present reading in the respective
columns against each feeder on last day of the month at 24:00. Units sent out are calculated after proper
application of multiplying factor and entered in the relevant column. Round completion code “C” is also entered in
the round completion code column where the meter has completed its round. In case, where the old meter replaced by new
one, code “R” is entered in the meter status code column. Each page of CP-22 B
pre-entry list is to be signed by the Deputy Manager, S.S.&T. division
concerned. Meter readings are recorded
as per range of the meter upto maximum 13 digits keeping the right three digits
as decimal points. Units sent out are
recorded upto maximum 13 digits and have no decimal point at all.
FILLING OF CP-22C GRID STATION METER CHANGE/METER
READING CORRECTION STATEMENT:-
CP-22C
Grid Station meter change / meter reading correction statement is filled in all
the cases where old meter is being replaced by a new one. Following procedure is adopted to fill in the
CP-22C statement:-
- Enter the billing month on the top of
CP-22C as current billing month ended.
- The name of grid station must also be
entered on the top of the form.
- Enter a valid feeder code existing in
the feeder table as well as in CP-22 master file.
- Name of the feeder is also entered.
- Meter number of the new meter
installed must be filled in the meter number column.
- Two digits
maximum range of the meter is required to be entered in the meter range
column. The range of the meter must be
from “04” up to “10”.
- Multiplying
factor of new meter installed upto maximum “9” digits must be entered in the
respective column. The right three
digits represent the decimal points.
- Enter the
reading at which the old meter is removed as final reading. The reading must be entered upto maximum “13”
digits keeping the last three digits as decimal points.
- Enter the
initial reading of new meter installed upto maximum “13” digits keeping the
right side three digits as decimal points.
- CP-22C
statement must also to be signed by the Deputy Manager S.S. & T. division
concerned.
RECEIPT OF CP-22B AND CP-22 C IN COMPUTER CENTRE:-
After
recording the reading in CP-22B pre-entry list and after proper filling of
CP-22C statement, these inputs are received in the Computer Centre upto 3rd
day of each month. Following checks are
performed in computer centre while receiving the CP-22 inputs:-
- Check the month end printed in the
list as the current billing month ended.
- The
signatures of concerned Deputy Manager S.S.&T. division must be available
along with stamp in case of 66 KV/132 KV grid stations on each page of CP-22B
Pre-entry list. In case of 220 KV grids
these pages are to be signed by the Senior Engineer.
- The writing
must be legible and there should be no cutting / over writing in the present
reading and units sent out recorded. If
due to some reason, cutting / overwriting is accepted, it must be signed by the
Deputy Manager S.S.& T. division, Senior Engineer or any other official
authorized by them.
- The number
of pages in respect of each S.S.&T. division must be checked as recorded in
the dispatch register at the time of initial dispatching of CP-22 B pre-entry
list. It must be ensured that no page of
CP-22 B pre-entry list is missing.
- Present
reading and units sent out as recorded in the CP-22 B pre-entry list must be
verified in respect of each feeder in the following manner:-
Units sent out = (Present reading – Previous reading) x
multiplying factor.
In
case of any discrepancy matter must be consulted with the official of
S.S.&T. division concerned.
- It must be
ensured that readings are recorded with three decimal points and are within the
limits of maximum “13” digits according to the meter range.
- It must be
ensured that recorded readings are not greater then their respective ranges in
any case.
- The present
reading recorded must always be greater than or equal to the previous reading
except in case of round completion or replacement.
- The present reading should not be
left blank in any case.
- The units sent out must always be
recorded within the range of maximum “13” digits.
- The total of
units sent out in respect of all the feeders of a grid Station is entered at
the bottom of the page as page total.
- Calculation of units sent out must be
verified in case of round completion code “C”.
- It must be
ensured that complete information in CP-22C statement is properly recorded in
all the cases where meter status code “R” is entered.
- Check the
feeder codes entered in the CP-22C statement.
These feeder codes must be valid existing in feeder table as well as
present on CP-22 master file. It must
also be ensured that status code “R” is entered in CP-22B pre-entry list
against the feeder codes entered in CP-22 C statement.
- The range of
new meter recorded in CP-22C statement must be within the range of “04 to 10”.
- The multiplying
factor of the new meter recorded in CP-22C statement must be upto the maximum
“9” digit with “3” decimal points.
- The final
reading of meter removed in CP-22C must be greater than or equal to the
previous reading. It must be recorded
upto maximum “13” digits with 3 decimal points.
- The initial
reading of new meter recorded in CP-22C must be less than or equal to the
present reading recorded in CP-22B pre-entry list. It must be recorded upto maximum “13” digits
with 3 decimal points.
- The units sent
out in case of meter replacement must be verified in the following manner:-
A “Units sent out of removed meter” = (Final reading of old meter – Previous
reading) X Multiplying factor
of old
meter.
B “Units sent out of installed meter” =
(Present reading of new meter – Initial
reading of new
meter) X Multiplying
factor of new
meter.
Total units sent out by the feeder
= A + B
When
CP-22B and CP-22C is received and checked 100% in respect of all S.S.&T.
divisions. CP-22 B is arranged in the order of page number. Then complete CP-22B pre-entry list along
with CP-22 C of all divisions is sent to data entry section for entry
purposes. When it is intimated by the
Data Entry Supervisor, that entry of CP-22 B and CP-22 C is completed, proof
lists are requested in the machine room.
NOTE:- For
each entry of CP-22 C, the code “R” must be entered against the relevant feeder
during the entry of CP-22 B other wise the record will not be created in CP-22
C entry file.
CP-22 C PROOF LIST CHECKING:-
After
receiving the proof list of CP-22C “Grid Station meter change / meter reading
correction statement” from the machine room, it is required to be got edited
100 % from the source data. Complete information regarding the “replaced meter”
is to be checked. Billing month printed
in the list must also be checked. Data
entry errors must be marked in red ink.
The following types of error messages may appear in the proof list.
|
ERROR CODE
|
MESSAGE
TEXT
|
ACTION
REQUIRED
|
|
01
|
Feeder code
not available in feeder table.
|
It may be due
to the wrong entry of feeder code or replacement code “R” is not entered in
CP-22B pre-entry list against the respective feeder code. The feeder code may be got corrected in
CP-22C after consulting from source data or enter the replacement code “R”
against the relevant feeder code.
|
|
02
|
Previous
(Final) reading must be greater than zero.
|
Correct the
reading as per source data. Previous
(final) reading in CP-22C must be greater than zero as well as pervious
reading in CP-22B
|
|
03
|
Multiplying
factor should not be less than “1.000”.
|
Correct the
multiplying factor of new meter installed in CP-22C after consulting the
source data. However, multiplying
factor of digital meter having range as “8” is acceptable less than “1.000”
as “0.500”
|
|
16
|
CP-22C record
must be given if meter status code is one of “R”, “U” and “N”.
|
Status code
“U” and “N” are not in use. If meter
status code “R” is given, CP-22C record must be added after consulting from
source data.
|
|
17
|
Non of the
fields in CP-22C is left blank when meter status code is “R”.
|
If the meter
status code is “R”, all columns of CP-22C i.-e. meter number, range,
multiplying factor, final reading and initial reading must be filled.
|
|
22
|
Adjusted units
incorrect according to new reading.
|
Not in use.
|
After marking all the errors /
corrections in CP-22C proof list and after making additions of all missing
entries, proof list is sent to data entry section for correction purpose. When it is intimated that corrections /
additions are got entered, a fresh proof list is again requested. This process is repeated again and again till
the 100% correctness is ensured. When it
is ensured that CP-22C is error free and no error message is appearing in the
final proof list, it is retained as office record.
CP-22B PRE-ENTRY PROOF LIST CHECKING:-
After
receiving the proof list of CP-22B from the machine room, 100% checking of
present reading and units sent out from the source data is required. The billing month printed in the list is also
checked being the current billing month ended.
It must be checked that entries are available in the proof list for all
the new feeder codes allotted. Round completion code “C” is required to be
checked where the meter has completed its round. Units sent out in such cases must also be
checked. Meter status code “R” is also
checked against the feeders reflecting in CP-22C proof list. Units sent out in replacement cases must also
be got checked from the source data of CP-22B.
Data entry errors must be marked in red ink. Following errors messages may appear in the
proof list and are required to be removed.
|
01
|
Feeder code
not available in feeder table.
|
Add the feeder
code in the feeder table if it is allotted first time, otherwise the record
must be got deleted from CP-22B proof list.
|
|
02
|
Previous
reading must be greater than zero.
|
If a new
record is added in CP-22 B proof list, previous reading must be greater than
zero. Correction required after consultation from source data.
|
|
03
|
Multiplying
factor should not be less than “1.000”.
|
If a new
record is added, multiplying factor should not be less than 1.000. However, in case of digital meter. 0.500 MF
is also acceptable. Correction
required after consultation from source data.
|
|
04
|
Previous
reading should not be greater than final reading.
|
Check the
final (present) reading from the source data and reading must be got
corrected in CP-22B proof list.
|
|
05
|
Present
reading must be equal to the previous reading if meter status code is “D”.
|
Meter status
code “D” is not in use
|
|
06
|
Units sent out
/ computed must be equal to the units given.
|
Check the
present reading as well as units sent out from the source data and correction
must be made accordingly if it is due to data entry error otherwise present
reading must be entered as per source data of CP-22 B pre-entry list.
|
|
07
|
Round
completion code must be either “C” or left blank.
|
Check the
round completion code column. Enter “C” if the round is completed otherwise
left blank.
|
|
08
|
Meter status
code must be “R”, ”U”, ”N” or “D”.
|
Check the
meter status code column. Enter “R” in
case of replacement of meter otherwise left blank as codes “U”, “N” and “D”
are no more in use.
|
|
09
|
First Sub
Division code cannot be left blank.
|
Check the
column of first sub division and enter the relevant valid Sub division code
of the feeder.
|
|
10
|
Sub division
code should be available in sub division table.
|
Check the sub
division code and correction must be made accordingly
|
|
11
|
% age of share
should be equal to or less than 100.
|
If a feeder is
shared by two sub divisions the sum of % ages of all sub divisions must be
equal to 100.
|
|
12
|
% age of share
not provided for the sub division.
|
If a feeder is
shared by more than one sub division %
age share must be given for each sub division according to the share.
|
|
13
|
% age of share
should be left blank for blank sub division.
|
If a feeder is
not a sharing feeder, % age column should be left blank and computer will
charge 100% to the relevant sub division.
|
|
14
|
% age of share
should be greater than zero.
|
In case of sharing
of feeder, % age share of each sub division must be greater than zero
|
|
15
|
Sum of all %
ages should be equal to 100.
|
In case of
sharing of feeder, sum of % ages of all sub divisions must be equal to 100.
|
|
16
|
Verified
reading or not numeric for adjustment.
|
Adjustment of
units is no more in use
|
|
17
|
Verified
reading incorrect for adjusted units.
|
-do-
|
|
18
|
Adjusted units
blank or not numeric.
|
-do-
|
|
19
|
Units sent out
not numeric.
|
Check the
units sent out from the source data and required to be entered in the
respective column.
|
|
20
|
Units sent out
incorrect after adjustment.
|
Adjustment of
units is no more in use.
|
NOTE:- In
case of sharing feeder, Sharing sub division code & relevant % must be
entered in CP-22 B entry file and principal sub division must not be updated in
any case.
After
removing all the error messages, CP-22B list is sent to data entry section for
correction purposes. When all the marked
corrections and additions are entered, proof list of CP-22 B is again
requested. This process is repeated
again and again upto 100 % correctness.
When it is ensured that CP-22 B proof list is error free and no error
message is appearing, % ages of shares in respect of each sub division is
properly entered in case of all sharing feeders and in case of creation of new
sub division or bifurcation, the sub division codes are properly updated in
feeder table as well as CP-22B entry file, final proof list of CP-22B is
obtained and retained as office record.
PROCESSING
OF CP-22A AND CP-22 REPORTS:-
When it is ensured that CP-22B and
CP-22C are error free, feeder codes and sub division codes are got corrected in
feeder table as well as in CP-22B entry file, and total files from all the
circles are received and merged in the re-tot step, CP-22A list is requested in
the machine room.
CP-22A FEEDER WISE LINE LOSSES
ANALYSIS:-
This is an important report, which reflects line losses in
respect of each feeder relating to a division.
This report provides load in KW, total number of consumers, monthly
units received and billed, progressive units received and billed, monthly % age
losses and progressive % age losses of all the feeders. This report projects the feeder wise losses
at each division. At the end of each
division, an abstract showing the sub division wise load, number of consumers,
units received, units billed, units lost and % age losses is printed. Totals are also printed at division, circle
and company level. Following checks are
performed to ensure the accuracy of report:-
- Check
the month printed in the list as current billing month ended.
- Verify
the names of Sub Divisions, Divisions, Circles and Company from the tables.
- Load
in KW must be equal to the load printed in CP-95 (balance pages) of all the
circles.
- Units
received must be equal to the units received as per OK proof list of CP-22B.
- Units
billed / sold must be equal to the sum of units billed as per CP-94, CP-95
(balance section) and CP-41 section “B” of all the circles.
-
Units lost =
units received – units sold
-
% age losses = units lost / units received x 100
-
Progressive Units received = Progressive units received of previous
month + Current month units received
-
Progressive Units billed = Progressive
units billed of previous month + Current month units billed
-
Progressive Units lost = Progressive
units received – Progressive units billed
-
Progressive % age losses = Progressive
units lost / progressive units
received x 100
-
Total number of consumers must be equal to the sum of
total consumers as per CP-95, CP-110 of all the circles.
-
It is ensured that new feeders added (if any), are
included in the CP-22A report. Progressive units received, billed and lost
against new feeders must also be verified from source data.
-
Check the % age of the units in case of sharing
feeders.
When CP-22A report is found
satisfactory, it is presented to the Manager Commercial for confirmation. After confirmation from the Manager
Commercial, four copies of this report are sent to Assistant Managers (C.S) for
onward submission to field offices.
Note:- If any
invalid feeder code is appearing in CP-22A report, the matter may be got
resolved with the help of programming section.
Feeder
code 666666 represents the batch “26”
Feeder code 888888
represents the un-identified feeder
Feeder code 999999
represents the WAPDA Employee
CP-22
LINE LOSSES, BILLING AND ARREAR ANALYSIS:-
After successful processing of CP-22A report and merging of
payments of all the circles, CP-22 “Line Losses, Billing and Arrear Analysis
report” is requested in the machine room.
This is an important report which reflects the monthly and progressive
units received, billed, adjusted and lost as well as calendar month assessment,
payments, spillover, and receivable in respect of each feeder. Tariff wise break-up of receivables are also
reflected. This list is printed sub
division wise. Sub division / Division /
Circle and Company totals of these information are also printed. Unit rate is also calculated by dividing
total assessment by net units billed. Following checks are performed to ensure the
accuracy of this report:-
-
Check the billing month printed in the list as current
billing month ended.
-
Monthly units received, billed and lost must be equal
to the CP-22A report.
-
Progressive units received, billed and lost must also
be compared with the CP-22A report
-
Monthly and progressive % age losses must be equal to
the monthly and progressive % age losses printed in the CP-22A report.
-
Total units adjusted must be equal to the sum of units
adjusted as per CP-95 (bill adjustment section) of all the circles.
-
Progressive units adjusted = Progressive
units adjusted of previous month + Current month units adjusted
-
Average unit rate = Assessment / Net units billed
-
Total assessment must be equal to the sum of the
assessments of all the circles as per CP-41 section “A”.
-
Total payment must be equal to the total payment of
MIS-RPT 1 & 3.
- Spillover
must be equal to the spillover amount as per MIS-RPT 1 & 3, CP-41 or
CP-120A of the region.
-
Total receivable amount must be equal to receivable
amount as per MIS-RPT 1 & 3, CP-41 or CP-120A of the region.
-
Total number of consumers must be equal to the sum of
consumers of all the circles as per CP-95, CP-110 and CP-41 of the region.
-
Total connected load in KW of CP-22 report must be
equal to the sum of load of all the circles as per CP-95 (balance section).
When CP-22 report is found 100% correct, it is required to be
dispatched to field offices through circle computer centers.
NOTE.
i): There
must be no feeder in CP-22 reports with zero consumer, which resulting 100 % losses. This may be due to
the reason that new feeder is physically energized and consumers have been
shifted to new feeder but their feeder codes are not updated on General &
Industrial Master files. Necessary updation on billing Master Files is required
before processing of CP-22 reports.
ii): For
line losses purpose July to June is considered as financial year. Progressive information at any stage are
considered as total from the month of July to date in each year.
