A concrete complete transformer substation (CCTS) of a dead-end and passing through type with a capacity 160 to 2500 kVA for the voltage of 10(6)/0.4 kV three-phase alternative current with a frequency of 50 Hz is intended for receiving, converting and distributing electrical energy. CCTS is used to arrange the power supply system for agricultural consumers, individual settlements, industrial and oil and gas facilities.
CCTS operation conditions
- CCTS climatic version and location category is Y1, YXL1 according to GOST 15150-69 and GOST 15543.1-89;
- the rated values of climatic factors of the environment during the CCTS operation according to GOST. 15150 and GOST 15543.1;
- ambient air temperature from -60°C to +40°C;
- relative humidity of outside air is up to 100%;
- altitude above sea level is no more than 1000m; environment is non-explosive, free of conductive dust, corrosive gases and vapors in concentrations that destroy materials and insulation, atmosphere of I and II types according to GOST. 15543.1 and GOST 15150;
- air temperature during storage of preserved CCTS from -50°C to + 40°C;
- seismic resistance is 9 points.
Technical parameters and characteristics
Parameter name | Parameter value |
Supply transformer capacity, kVA | 160 — 2500 |
Rated voltage on the high voltage side, kV | 6; 10; 20 |
Rated voltage on the low voltage side, kV | 0.4 |
Rated current of bus bars on the high voltage side, А | 630 — 1000 |
Rated current of bus bars on the low voltage side, А | up to 5000 |
Bus bars on the low voltage side for the switchgear : | |
– air-insulated, кА/2с | 20 |
— SF[sub 6]-gas insulated, кА/1с | 20; 25 |
Peak withstand current of the bus bars on the high voltage side for the switchgear, кА: | |
— air-insulated | 31,5; 51 |
— SF[sub 6]-gas insulated | 51; 63 |
Conventional thermal current of the bus bars on the low voltage side, кА/1с | 50; 100 |
Peak withstand current of the bus bars on the low voltage side, кА | 110; 220 |
Insulation level according to GOST 1516.1: | |
— with a oil-filled transformer | normal |
— with a transformer with dry insulation of electric windings | lighter |
Climatic version according to GOST 15150 | Y1, YXL1 |
Protection level according to GOST 14254 | IP23 |
Concrete casing dimensions, mm: | |
— height, up tо | 3000 |
— width, up to | 3000 |
— length, up to | 7000 |
Concrete casing weight (no more) : | |
— casing with HVSG / LVSG equipment without transformer | 20000 |
— cable structure | 12500 |
— oil sump | 1000 |
Service life, years | Not less than 30 |
CCTS completeness
CCTS also provides provides the possibility to install the following:
- substation housing, consisting of the main unit and the cable semibasement;
- high voltage switchgear (HVSG);
- supply transformer;
- low voltage switchgear (LVSG);
- emergency fallback cabinet (optional);
- telemetry complex based on multifunctional electricity meters (optional);
- Automated Meter Reading and Control System (optional);
- CAPCS (optional);
- PF correction (optional);
- set of bus bar and jumper cables;
- installation materials;
- spare parts and accessories as per SPTA Set List
- area lighting;
- heating;
- security and fire alarm;
- forced ventilation.
CCTS are completed with equipment of leading global and Russian manufacturers
Equipment name | Type, brand | Enterprise-manufacturer |
High voltage equipment | KSO-2 | LLC «SPECENERGO» |
GHA RM-6 | «Schneider Electric» | |
Power substations | TMG up to 4000 kVA | «Minsk Electrotechnical Plant named after V. I. Kozlov» |
TRIHAL | «Schneider Electric» | |
Substations up to 4000 kVA | LLC «Electrofizika» «SVEL Company Group» | |
Low voltage equipment | Type and manufacturer of equipment as agreed with the customer |
The configuration and composition of the equipment used in CCTS can be changed at the Customer’s request in accordance with the technical specification requirements.