Section V. Special specifications for automated metering system

43. Setting and purpose of creation the system

    1. Purpose acsee ss

Automated system of power substations should be established as an automated data-processing system, the main purpose of which - the measurement, collection, processing, storage, display, documentation electric energy accounting data.

ACSEE SS should provide:

• automated data collection of measurements of parameters of electricity from meters and other data needed for accounting of electric power;

• providing hourly electricity metering;

• obtaining an average of the power at each point of the account and the construction of the half-hour (hourly) load graphs on daily, monthly and annual intervals;

• monitoring the reliability of the measuring data;

• providing simultaneous measurement processes;

• processing of measurement information;

• automated data processing of measurements of parameters of electricity and other energy accounting data and the formation of accounting results that are taken for financial and other calculations;

• automated data saving electricity metering;

• automation of control of technical condition of the accounting system of electricity;

• work with ACS SS;

• interaction with an automated control system of power quality (ACSPQ);

• preparing accounting documents for electricity metering.

2. The purpose of the acsee ss

The purpose of the ACSEE is:

• implementation of requirements of normative documents , decisions of Advice WMEE in relation to the account of electric energy, including relatively for the sentinel of its account on the scopes of balance belonging of subjects of WMEE;

• reduction of commercial losses by increasing the accuracy of electric energy and information that enables the analysis of electric power losses in the main backbone network;

• automation of the collection, transmission and processing of information from the settlement, and technical points of electric energy at the substation;

• ensuring the operational efficiency of the automatic control counters and data channels;

• validation of the data obtained through the formation of the balance of electric energy substations (hereinafter - SS);

• providing of work of all elements of ACSEE PS in the single estimated time with the maintainance of the set rules of passing to the "summer / winter" time;

• decline of labour intensiveness of works on the account of electric energy;

• introduction of modern technical and programmatic facilities high-reliability, by the protracted terms exploitations which provide the minimum terms of return of the inlaid facilities and defence of the inlaid investments;

• providing of personnel of substation by complete information about making, vacation, trunk-to-trunk and consumption of electric power;

• automation of procedures preparation of current documents.

43. Description of object of automation

Collection of measureable information, treatment, storage, presentation and documenting of commercial and technical information, is subject automation about a receipt, distributing and consumption of electric power on SS and on its separate elements.

Volumes of facilities of measuring technique , intended for control of commercial and technical account of electric power on SS must correspond operating normative-technical documents.

On SS modern microprocessor multifunction meters must be set.

Points of account on joinings 330 and 110 kV must be equipped basic and dublicate watthourmeters class of exactness of 0,2sec.

Basic and dublicate meters of joinings 330 and 110 kV must be connected to different measurings second obmotkam of TC on a four-wire chart.

The account of electric energy is carried out in obedience to "Instruction about the order of the commercial distributing of electric power" and by "Rules of device of electrical equipment ".