Complete two-transformer substation for outdoor installation KTPO

KTPO "Sandwich" complete two-transformer substation for outdoor installation

three-phase alternating current with frequency of 50 Hz, is an electrical

a device designed to receive, convert ( the voltage level

using power transformers, transmission and distribution of electric energy.

Used in power networks:

- industrial enterprises

- rural and urban settlements

- construction sites and other facilities

Two-transformer substation KTPO "Sandwich" comes in two standard versions:

- dead-end

- checkpoint

The number of power transformers two

The capacity of power transformers from 25 kVA to 2500

The voltage on the HV side, kV 6; 10

Switchgear high voltage RU HV - 6(10) kV: equipment CSR HH, CSR-2xx

Current thermal resistance on the HV side for 1s., kA 16

Rated peak withstand current on the HV side, kA 41

The performance of BB air, cable

The voltage on the low voltage side, kV 0,4/0,23

Switchgear low voltage RU NN - 6(10) kV: equipment SHCHO-70

Current thermal resistance on the low voltage side within 1C., kA 20

Rated peak withstand current at the low voltage side, kA 50

The performance of NN air, cable

Isolation level according GOST 1516.1

with oil-immersed transformer normal insulation

dry transformer Lite insulation

Nominal operating mode continuous

Type of periodic maintenance

Constructive performance

KTPO "Sandwich" is a modular (block) precast-weld metal structure. Blocks (modules) made with the frame made of steel profiles with resistant coating that provides increased corrosion resistance and modern design. Modules covered galvanized sheet thickness of 1.5 mm, the Insulation is made of sandwich panels thickness of 50, 80, 100, 150 or 200 mm according to customer's specifications.

Blocks (modules) CTPO "Sandwich" as a rule, represent:

- switchgear high voltage HVSG-6(10) kV with cell type CSR

- Bay power transformer,

- switchgear low voltage low voltage switchgear-0,4 kV cell type THAT.

Layout KTPO "Sandwich" of its dimensions and the number of blocks depends on the schema of the electrical connections and the number of cells and transformers. Blocks KTPO "Sandwich" separated by metal partitions, and have separate doors, lockable locks.

 

For ventilation and cooling systems installed within a block of the apparatus doors have openings with blinds. In some cases, the camera of the transformer can be provided with an axial exhaust fan.. In low and high Low voltage switchgear substation cells are arranged in one row with the formation of the corridor service. Modules KTPO "Sandwich" with lighting, heating and ventilation system with ready-made wiring that enables the mounting substation in a shorter time. High-voltage input, order, is the air, with the installation on the roof of the compartment of the bushings with ARF or cable through the floor or wall. Low-voltage outputs can be cable or air, with ustanovkoi rooftop KTPO "Sandwich" frame with insulators for OTL-0,4 kV. The basis KTPO "Sandwich" is of monocoque construction of profiles that has a solid or expanded metal flooring with malopriemlem hole for emergency release of oil from the transformer and holes for input and output cables. The strength of the base transformer module is designed the installation of one power transformers up to 2500 kVA T./F. 4922-305368 ;8-903-6471471