Characteristics of assets

IDGC of Centre manages the following assetsTaking into account leasing, rental and equipment maintenance contracts.
Asset name	Measuring units	2012	2013	2014
Substations 0.4–110 kV	pcs	95,262	96,849	98,288
Installed capacity	MVA	50,413	51,312	52,008
SS 35–110 kV	pcs	2,358	2,359	2,363
SS 35–110 kV	MVA	33,104	33,562	33,936
SS 6—35/0.4 kV	pcs	92,904	94,490	95,925
SS 6—35/0.4 kV	MVA	17,310	17,749	18,072
Transformer substations, 6—10/0.4 kV	pcs	92,214	93,793	95,183
Transformer substations, 6—10/0.4 kV	MVA	16,696	17,227	17,592
Distribution points, 6–10 kV	pcs	690	697	742
Distribution points, 6–10 kV	MVA	613	522	479
Overhead lines route length, 0.4–110 kV	km	376,008	378,118	379,144
Conductors 110 kV and more	km	21,570	21,596	21,601
Conductors 35 kV	km	30,392	30,378	30,390
Conductors 6–10 kV	km	169,942	170,645	171,230
Conductors 0.4 kV	km	154,105	155,498	155,923
Cable lines length, 0.4–110 kV	km	13,033	13,846	14,259
Cables 110 kV and more	km	15	35	36
Cables 35 kV	km	11	20	26
Cables 6–10 kV	km	6,943	7,322	7,552
Cables 0.4 kV	km	6,064	6,469	6,645

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Specific fault rate in 2012–2014
Indicator	Measuring units	2012	2013	2014	Deviation 2014/2013, %
Number of interruptions	items	41,659	29,265	20,797	—28.9
Specific fault rate	items per 1 thousand items of equipment	26.2	18.1	12.4	—31.5

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The level of deterioration of IDGC of Centre electric grid facilities is 73.2% as at December 31, 2014, including:
Name of asset	Deterioration level, %
Overhead lines, 0.4–110 kV	74.5
Cable lines, 0.4–110 kV	58.8
Transformer equipment, 3–110 kV	77.3
Switching devices, 3–110 kV	65.9
Substation equipment, 3–110 kV	72.4
Total deterioration of the organisational unit	73.2

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The standard service life of facilities is taken into account when calculating the deterioration of assets:

25 years for substations and cable lines;
35 years for overhead power lines.

Asset Management System

The high level of the transmission facilities’ deterioration poses the need for improving asset management efficiency. In this regard, IDGC of Centre decided to create an Asset Management System (hereafter AMS) in 2006.

The company’s AMS development required elaboration of new approaches to the management of power grid companies’ production assets. The AMS has been fully implemented today.

The Asset Management System allows the Company to solve the following issues:

To reduce the costs of equipment maintenance and elimination of the consequences of its failures by means of:

alignment of priorities in making fund allocation decisions — primarily funds go to the equipment in the worst condition and having the greatest failure consequences;
justified determination of the optimal amount of funds ensuring equipment reliability for the company as a whole and of each business unit in particular

To ensure transparency and validity of decisions, efficient interaction between the departments, head office, shareholders and authorities:

each object of the repair and replacement programme has a rationale for its inclusion, which is simple and understandable not only for technical experts;
the possibility of repair and replacement programme options’ modelling with different amounts of funding allows us to prove the optimality of the decisions made

To improve the efficiency of asset management task planning and monitoring by means of:

ensuring that the company’s management and divisions have objective and sufficient information to establish economically sound equipment repair and replacement programmes;
changing the principles for repair and formation of replacement plans: instead of the approach where the request, formed at the bottom level, receives or fails to receive approval at the top level, a new principle has been implemented, where the task is set at the top level, and is to be carried out at the bottom level;
a possibility of automatic formation/revision of equipment repair and replacement programmes in case of changes in the business objectives and priorities

To increase the efficiency of task description, maintenance and repair services implementation using handheld mobile devices (Mobile solutions tools):

enhancement of input data reliability;
reduction of time spent on feeding information into the system to determine its technical condition;
reduction of the time spent on preparation of external examination, measurement and test reports;
provision of all the necessary documentation diagnostics;
measuring the progress and time of works

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