- Design features
- Technical data
- Sevice conditions
- support and passage insulators are made of composite ceramic based on epoxy resin;
- the enclosure is made of galvanized steel;
- every switchgear unit consists of four solid compartments (busbar compartment, low voltage compartment, cables compartment, circuit breaker compartment), each of which has its own exhaust valve for pressure relief;
- the contact part of the circuit breaker is insulated (the connection of plug-type power connectors of the sliding element occurs in an insulation tube), completely eliminating interphase short circuits;
- the depth of the cabinets remains constant for all primary schemes, regardless of the number of power cables and the nominal current or the breaking current of switchgear unit ;
- the cable compartment panels are quick-detachable, attached to the switchgear unit on slots, and can be fast removed by lifting them upward. Unlike panels on hinges, they do not obstruct the narrow passage behind the cells;
- there is a lock to prevent the removal of the cable compartment panel when the grounding disconnector are not applied;
- the shoot-through type grounding disconnector operates when the “dead point” is reached, independent of further actions by personnel;
- the door of the circuit breaker compartment is fixed in ten points when closed, providing reliable protection against explosions during short circuits;
- the motor drive for the grounding blades and the movement of the sliding element allows for fully remote control of the substation from the control center, thereby ensuring increased safety for the maintenance personnel.
- it is possible to manufacture equipment with insulated busbars
| Rated voltage, kV | 6, 10 |
| Rated maximum voltage, kV | 7,2; 12 |
| Rated current of main circuits, A | 630, 1250, 1600, 2000; 2500, 3150, 4000 |
| Rated busbar current , A | 630, 1250, 1600; 2000; 2500, 3150, 4000 |
| Rated braking current of:
– circuit breaker, кА; – contactor, кА; |
20; 31,5; 40 4,5; 8; 10 |
| Rated short-time withstand current, кА | 20; 25; 31,5; 40 |
| Rated peak withstand current, кА | 26; 51; 81; 102 |
| Rated supply voltage of auxiliary and control circuits:
– AC supply, V – DC supply,В |
110, 220 110, 220 |
| Number of mechanical operations of circuit breaker | 30000 |
| Maximum rated power of auxiliary transformers, kVA | 25, 40, 63 |
| Insulation type | air-insulated, combine |
| The insulation coating of the busbars | upon request |
| Types of linear high-voltage connections | cabel, busbar |
| Protection level by IEC 60529 | IР40 |
| Maximum nubers of main cables.
– unit with a width of 750 mm – unit with a width of 900 mm |
34 34 |
| Curcuit braker type: | VB4-P (AVM АМPЕR») |
| Current transformers type: | CTS.12 (Amper-Intra) |
| Voltage transformers type: | VTS («KPB Intra») |
| Auxilary transformer types | TMG-25; ТS-25; ТS-40 |
| Surge arresters type: | 3ЕК («Siemens») |
| Contactor type | V series («ABB») |
| Dimensions, mm
– width – depth – height
|
750; 900; 1100 1350 2140 |
| Weight, Kg | 670÷910 |
- the altitude does not exceed 1000 m;
- temperature requirements:
– the ambient temperature does not exceed 40°С;
– the ambient temperature does not drop below -5°С.
- окружающая среда невзрывоопасная, не содержащая агрессивных газов и испарений, химических отложений, не насыщенная токопроводящей пылью и водяными парами;