6(10) kV closed switchgear
Switchgear are designed for:
- receiving, converting and distributing of 3-phase AC power (50/60 Hz) at power facilities, oil and gas industry and other objects with solidly earthed or isolated neutral;
- placement of switching devices, busbars and connecting buses, auxiliary devices (compressor, battery, etc.), as well as protection devices, automation, supervisory control, communications and measuring devices.
Detailed information
Main features
| Parameters | Parameter value |
| Rated voltage (line voltage), kV | 6,0; 10,0 |
| Highest operating voltage (line voltage), kV | 7,2; 12,0 |
| Rated current of main circuits of switchgear cabinets, A | 630; 1000; 1600; 2500; 3150; 4000 |
| Rated current of busbars, A | 630;1000; 1600; 2500; 3150; 4000 |
| Rated tripping current of circuit breaker built into switchgear, kA | 12,5; 16,0; 20,0; 25,0; 31,5; 40,0; 50,0 |
| Thermal resistance current (short-term current), kA | 20,0; 31,5; 40; 50 |
| Rated current of electrodynamic resistance of main circuits of switchgear cabinets (amplitude), kA | 51,0; 81,0; 64,0; 102,0; 128,0 |
| Thermal resistance current flow time, s | 1 or 3 |
| Rated voltage of auxiliary circuits, V | 110; 220 |
| Rated capacity of built-in auxiliary transformers, kVA | up to 40 |
Product components
The switchgear a set of separate cabinets including switching devices and other high-voltage components, measuring instruments, automation and protection devices, as well as control and signaling equipment and other auxiliary devices. The cabinets are connected to each other in accordance with the electrical diagram according to the data sheet
The configuration of switchgear equipment is determined by the customer and project design and usually includes:
- a set of high-voltage equipment;
- AC or DC power supply and distribution switchboards for power supply of auxiliary operative circuits.
Outdoor switchgear additionally include:
- pre-fabricated modular building;
- HVAC and lightning;
- security and fire alarm.
The technical characteristics of the equipment and components installed in the switchgear meet the requirements of the relevant standards and technical conditions of the manufacturers
Single-line electrical diagrams of the main switchgear circuits must correspond to the project design, and in case of production according to non-standard diagrams - to the customer's diagrams
A set of high voltage equipment consists of
- switchgear - switchgear cubicles or single-end service assembled chambers;
- busbar or cable bridges for connecting cubicles in double-row switchgear designs;
- other auxiliary equipment at customer's request.
The number of modular units of outdoor switchgear depends on the amount of equipment built into it.
The type of the installed equipment and its configuration are determined by the customer and project design.
The type of the used communications and supervisory control devices (if any) is determined by the customer and project design.
Implementator
SHIELD Engineering and manufacturing complex
The manufacturing division performs a complete cycle from welding metal structures for modular enclosures to turn-key ready equipping. The workshops are equipped with state-of-the-art multifunctional manufacturing equipment: automated laser cutting machines,…
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