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Promyshlennaya St., 19R

Packaged transformer substation with a diesel generator set (DG)

Packaged transformer substation with a diesel generator set is a modular transformer substation combined with a DG delivered ready-to-operate. These packaged transformer substations are designed for the electric power supply of a special group of consumers of the 1st category of power supply reliability.

Packaged transformer substations with a diesel generator set (PTS with DG) are designed to receive, transform, and distribute electrical power of three-phase alternating current in the networks with an isolated or compensated neutral on the 6(10) kV side and a dead-earthed neutral on the 0,4 kV side. The power supply of consumers with electricity 0,4 kV from the diesel generator set occurs in the event of a power outage from the 6(10) kV network. The placement of equipment in a single building and the short length of cable routes are the advantages of this solution.

PTS with DG price calculation example:

  • 6 kV indoor switchgear in Sever modular building - 13 million RUR
  • 2 units: Packaged Transformer Substation, modular 2х630 kVA, Sever modular building (2 modules) + 2 transformers ТС3-630/6/0,4 - 7 million RUR
  • 2 units: Cummins C1400D5 (1000 kW) high-voltage diesel genset in an all-welded container unit – 40 million RUR

Cummins C1400D5 (1000 кВт)

Request the calculation of the price for PTS with DG - write a request to

2 2500 kVA PTS, 20 kV for 21 million RUR and TE.1000S-T400-2RN DG Perkins (1 MW) costing 14,8 million RUR

Modular packaged two-transformer substation 2KTBP-2500 in solid reinforced concrete volumetric engineering blocks, consisting of:

#

Equipment name

Measuring unit

Q-ty

1

2 KTBP construction unit consists of blocks:

-  Aboveground part 6700 х 2300 х 2930 (mm) (engineering block + lift-off cover) – 2 pcs.;

-  Aboveground part 6500 х 2300 х 2930 (mm) (engineering block + lift-off cover) – 2 pcs.;

-  Aboveground part 4600 х 2300 х 2930 (mm) (engineering block + lift-off cover) – 1 pcs.;

-  Underground part 6700 х 2300 х 1500 (mm) (cable cellar + oil sump under the transformer chamber) – 2 pcs.;

-  Underground part 6500 х 2300 х 1500 (mm) (cable cellar) – 2 pcs.;

-  Underground part 4600 х 2300 х 1500 (mm) (cable cellar) – 1 pce.

kit

1

2

Oil-filled sealed transformer – 2500 kVA, 20/0,4 Kv, D/Un-11; U1

winding material Al-Al

pcs.

2

3

Diesel-generator set TE.1000S-Т400-2RN Perkins 1000 kW

pcs.

1

4

20 kV switchboard

Gas-insulated compact switchgear (GIS) of the RM6 NE series (not expandable) for 3 functions (III).

Main features:

-  function I: hand-driven sulfur hexafluoride load-break switch;

-  short circuit current indicator on two functions I

-  additional auxiliary contacts for the position of switching devices on all functions

kit

2

5

20 kV switchgear (high-voltage switchgear)

Gas-insulated compact switchgear (GIS) RM6 NE series (not expandable) for 3 functions (IDI).

Main features:

-  function I: gas-insulated switch-disconnector hand/motor driven according to single-line diagram;

-  function D: gas-insulated switch-disconnector hand-driven with the possibility of breaking short-circuit currents with the VIP400 transformer protection relay;

-  Short-circuit current indicator on one function I

-  additional auxiliary contacts for the position of switching devices on all functions

kit

2

6

20 kV ATS panel

pcs.

1

7

0,4 kV switchgear (low-voltage switchgear) SHNN-HV-5000 (3200) of two stands without ATS

Main components:

-   HGN50C 3B M0C0S0 54S BA EL draw-out incoming circuit breaker hand-driven for current I rated =5000А – 2 pcs.;

-   HGN32B 3B M0C0S0 54P BA EL draw-out incoming circuit breaker hand-driven for current I rated =3200А – 1 pcs.;

-  5000/5 current transformers, accuracy class 0,5 in total 6 pcs. on every input;

-  copper prefabricated busbars

kit

1

2 КТП 2500 кВА, 20 кВ за 21 млн рублей и ДГУ ТЭ.1000С-Т400-2РН Perkins (1 МВт) стоимостью 14,8 млн рублей
2 КТП 2500 кВА, 20 кВ за 21 млн рублей и ДГУ ТЭ.1000С-Т400-2РН Perkins (1 МВт) стоимостью 14,8 млн рублей

Packaged transformer substations (pre-owned) in containers

Name Power, kVA Voltage Price, RUR
KTP 1000 1000 400/6300 1 320 000
KTP 1600 1600 400/6300 2 400 000
KTP 2х2500 5000 400/6300 6 720 000
KTP 2х2500 5000 400/6300 6 720 000
KTP 2х3200 6400 400/6300/10000 11 400 000

Packaged transformer substation with a DG is a reinforced concrete module consisting of two parts. Lower modules are a solid mold with even surfaces 1900 mm high designed to accommodate load from upper modules, cable allocation and oil headers. Upper modules are a solid mold with even surfaces 2600 mm high designed for housing transformers, higher-voltage switchgears and lower-voltage switchgears.

A module where the DG is placed is equipped with air valves, an exhaust system is assembled in the cover, flanges for fueling are mounted in the wall. The upper modules are installed on lower modules at the assembling site. 

КТП с ДГУ

КТП с ДГУ

КТП с ДГУ схема

The elements of reinforced concrete bearing frames and metal coverings of the roof have a rigid connection with an internal grounding circuit made of strip steel of 160 mm² section. The transformer neutral is connected to the grounding circuit with strip steel of 160 mm² section.

As a packaged switchgear, on the HV side, prefabricated one-sided maintenance chambers or gas-insulated monoblocks can be used - a small-sized switchgear of RM6 type for 2, 3 or 4 connections, as well as separate RM6 Schneider Electric cells.

A complete containerized transformer substation with DG is used with power transformers – for example, TMG11 (100-630 kVA voltage) and TMG12 (250-630 kVA) produced by Kozlov Minsk Electrotechnical Plant.

Low-voltage input switching devices are 2 or more panels rigidly attached, designed to accommodate the bus lines and automatic switches or fuse-switch-disconnectors. The low-voltage switchgear includes ISERE cut-in load break switches and PE series disconnectors to create a visible break in circuits when repairing equipment. To meet the own needs of the packaged transformer substation premises with DG, the installation of an auxiliaries board is provided.

Packaged transformer substations with DG can be equipped with an automatic standby infeed device, which can be installed both on the low voltage side and on the high voltage side (HV switchgear, type RM6). The ATS operation algorithm is monitoring the presence of voltage on the transformer up to the input circuit breaker and giving a command to start the DG in the event of a power failure at the input from the transformer for a time exceeding the set value.



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