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Maintenance of transformer substations
Supply and installation of package transformer substation according to load calculation
Why a substation needs service
During operation, the cooling system, insulation, casing of the PTS wear out. If you perform service maintenance of transformer substations, following the schedule, that is, in a timely manner, you can avoid accidents, breakdowns as such and, accordingly, interruptions in the power supply to consumers. In addition, scheduled maintenance of transformer substations determines their general condition, thereby helping to find out how long it will take to overhaul electrical equipment so that you are ready for it.
During operation, the cooling system, insulation, casing of the PTS wear out. If you perform service maintenance of transformer substations, following the schedule, that is, in a timely manner, you can avoid accidents, breakdowns as such and, accordingly, interruptions in the power supply to consumers. In addition, scheduled maintenance of transformer substations determines their general condition, thereby helping to find out how long it will take to overhaul electrical equipment so that you are ready for it.
Frequency of maintenance of transformer substations
There are certain regulatory requirements for the intervals between substations, but they can be adjusted, taking into account the condition of the equipment at this stage of use, operating conditions. If we talk about the basic requirements for the frequency of maintenance of transformer substations, the intervals are as follows:
There are certain regulatory requirements for the intervals between substations, but they can be adjusted, taking into account the condition of the equipment at this stage of use, operating conditions. If we talk about the basic requirements for the frequency of maintenance of transformer substations, the intervals are as follows:
- Once a year – a routine routine checkup
- Inspection before and after the heating season (seasonal)
- Grounding check – at each scheduled check of the integrity of substation elements
- Twice a year – measurement of network operating parameters
- Every six years – major repairs
- Every three years – inspection of the insulation winding
- Once every three years – a comprehensive check of all protective equipment
- Unscheduled inspection after a natural phenomenon – immediately after repair
- Unscheduled inspection after the failure of the responsible component – immediately after repairing the devic
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Composition of inspections during maintenance of transformer substations
Maintenance of transformer substations is a set of specific actions
Maintenance of transformer substations is a set of specific actions
- restoration of the initial (or close to them) insulation parameters of electrical equipment;
- processing of contact connections (stripping, lubrication, broaching)
- cleaning of dust, dirt of equipment housings, room surfaces;
- correction of defects in electrical equipment, construction parts;
- checking the parameters of the power transformer (load, temperature, voltage, presence of chips of insulators, condition of high-voltage fuses)
- The transformer oil must be checked half yearly basis that means once in 6 months, for dielectric strength, water content, acidity, sludge content, flash point, DDA, IFT, resistivity for transformer oil.
- preventive tests, measurements of electrical equipment indicators in order to avoid possible malfunctions of the power gri
- This list can be expanded depending on specific situations, operating conditions and the condition of the equipment.
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