To provide stable electricity supplies to industrial facilities, agriculture and the general population of Krasnodar Region and the Republic of Adigeya, Kubanenergo draws up and carries out a repairs programme every year that takes into account the following parameters:
- the standard rate for carrying out capital repairs, overhauls and maintenance of power equipment;
- the technical condition of facilities;
- the results of routine checks;
- the need to carry out the instructions of supervisory agencies;
- eliminating disturbances;
- the economic feasibility and effectiveness of electrical network operations.
The repairs programme for 2011 stipulated the following work:
- repairs to power transmission lines, substations, power equipment, switchgears and emergency control systems, metering instruments and systems, measuring instruments, dispatcher and production equipment, machinery and vehicles, as well as buildings and fittings, computers and office equipment;
- carrying out the instructions of supervisory agencies;
- executing targetted programmes, including work on energy saving, improving operational reliability of power equipment and lines, preparing for the storm season, ensuring reliable operations during flooding, preparing the Company for operations during the autumn and winter period.
The repairs programme was successfully completed in practically all areas during the accounting year.
To improve the reliability and effectiveness of the Company’s operations in 2011 planned replacement of worn out and obsolete equipment at power stations with modern equipment was carried out, including:
- 110 110 kilovolt stick pedestal insulators with improved strength and mechanical characteristics were installed;
- 67 reactive power sources were restored and defective condensers were replaced;
- bare wire was replaced with self supporting isolated wire 2: 13.3 kilometres of 6–10 kilovolt power line and 176.5 0.4 kilovolt line;
- 11 arc barrier units installed in 6–10 kilovolt switchgear and control gear units on 6–10 kilovolt busbars at 35–110 kilovolt substations;
- 36 35–110 kilovolt arresters and 24 6–10 kilovolt arresters replaced on excess voltage suppressors;
- operating safety locks restored at 36 substations;
- renovation is in progress of the upper level of supervisory control in the Slavyanskie electricity networks branch of Kubanenergo with work to be completed in 2012;
- work on construction of the
Krasnodar-Slavyansk relay line is underway (to be brought into operation in 2012); - work has been completed on digital loop carriers at the Adigeiskie, Slavyanskie, Labinskie and
Ust-Labinskie electricity networks branches of Kubanenergo; - environmental surveying has been completed on the
Krasnodar-Dinskaya-Korenovskaya-Tikhoretsk andKorenovskaya-Ust-Labinsk fibre optic communications and data transfer channels.
Maintenance work on
To identify heating of contact joints on 35 kilovolt and higher power lines and eliminate it in a timely manner thermal imaging was carried out on the 133 particularly critical sectors of power line with the plan being for 127.
To improve the reliability of overhead electricity transmission lines 739 overhead line accessories on 35 kilovolt or higher lines were replaced by spiral one from a plan for 707.
During the accounting year the following works were also carried out:
- 66 training sessions were held on schedules of temporary limitations in electricity supply;
- 85 plans for melting ice on high voltage electricity transmission lines were developed and approved;
- sets of protective clothing were systematically checked for completeness, the condition of instruments and equipment was checked and the presence of primary fire fighting equipment.
In 2012 it is planned to carry out repairs to fixed assets in the energy system to a value of 541.2 million rubles (not taking into account expenditure on wages and the unified social tax), including:
- 24.6% in house;
- 75.4% by subcontractors.
The repair programme for 2012 stipulates the following list of works to be carried out:
- comprehensive repair of 35–110 kilovolt substations — 89;
- repairs to 6–10 kilovolt oil switches — 760;
- repairs to 35–110 kilovolt oil switches — 229;
- repairs to 110 kilovolt power transformers — 7;
- repairs to 35–110 kilovolt power lines — 1 345.9 kilometres;
- brush clearing under 35–220 kilovolt power lines — 328.3 hectares;
- repairs to 0.4–10 kilovolt power lines — 865.5 kilometres;
- repairs to transformer substation (closed transformer substation)
6–10/0.4 kilovolt — 623; - repairs to 0.4–10 kilovolt cables — 11.7 kilometres or 582 sections.