RU74012U1 - SMALL UNIT BLOCK COMPLETE TRANSFORMER SUBSTATION IN REINFORCED CONCRETE HOUSING - Google Patents

Abstract

A small-sized block transformer substation in a reinforced concrete building (MBKTP (B), a compact installation for receiving electric energy of three-phase alternating current 10 (6) kV of industrial frequency, converting, distributing it over a three-phase four-wire network at a voltage of 0.4 kV, is a wall reinforced concrete block with the floor, which is bolted to the roof slab and installed on the cable structure.Inside the enclosure volume is divided into compartments of the power transformer and compartments of distribution devices High and low voltage systems.The compartments are separated by metal partitions, each compartment has a separate entrance with a metal door.In the floor of the shell there are openings for the input and output of cables of high and low voltage switchgears and oil drain from the power transformer. After installing a small block transformer substation in reinforced concrete housing MBKTP (B) at the place of operation, the power transformer is connected and the supply and outlet cables of high and one voltage (HV and LV), the external grounding circuit.

Description

The proposed utility model relates to the field of technology for the installation of electrical equipment, in particular a power transformer, a high voltage switchgear (LVRN), a low voltage switchgear (LVRN), electricity metering, and more specifically to a small-sized block transformer substation in a reinforced concrete housing MBKTP (B) "RUBEZH", where the electrical equipment is mounted, as a high voltage switchgear (LVD), the cell KSO-6 (10) -E1 is used vrora "power transformer oil is sealed (TMG) and low voltage switchgear - (LVS) - own production.

The small-sized block transformer substation in the reinforced concrete building MBKTP (B) is a wall reinforced concrete block with a floor, a bolt connection connected to a roof plate, which is installed on a cable structure. Inside, the sheath volume is divided into compartments of the power transformer and compartments of switchgears of high and low voltage. The compartments are separated by metal partitions, each compartment has a separate entrance with a metal door. Openings are provided in the floor of the enclosure for input and output of cables to switchgears of high and low voltage (RUVN and RUNN) and oil drain from the power transformer. The design of the shell provides air water or cable entry.

There are similar devices designed to receive electric energy of three-phase alternating current with a voltage of 10 (6) kV of industrial frequency, converting, distributing it over a three-phase four-wire network at a voltage of 0.4 kV for powering rural settlements, horticultural partnerships, small enterprises.

The simplest analogue is a mast (pole) transformer substation made of separate cabinets: a high voltage switchgear cabinet (RUVN cabinet), a power transformer, a low voltage switchgear cabinet (RUNN cabinet), a disconnector.

The closest prototype can be considered a block complete transformer substation in a reinforced concrete building (BKTP) with a capacity of up to 1250 kVA manufactured by Storge LLC, where after installing the product at the facility, you need to connect a high and low voltage cable, install and connect a power transformer.

And a complete transformer substation (KTP) of a pillar type with a capacity of 25 to 250 kVA produced by the Cheboksary Power Electrical Equipment Plant "Electrosila".

The disadvantage of such a device, a complete transformer substation (KTP) of a column type, is the possibility of non-specialists to freely enter the device, dismantling the substation, installing equipment is possible only directly at the installation site on the line, which does not always ensure the specified quality.

The purpose of this utility model is to eliminate this drawback. The goal is achieved by the fact that the complete transformer substation is made in a concrete shell with thermal insulation, supply and exhaust ventilation, with

internal maintenance of the low-voltage part, with the possibility of installing a new generation of switching equipment, on the side of 6-10 kV, units with circuit breakers on the side of 0.4 kV; with cable leads.

The essence of the proposed utility model is illustrated by the attached drawing. Figure 1 shows a General view of a utility model in cross section. A compact installation for receiving electric energy of three-phase alternating current 10 (6) kV of industrial frequency, converting, distributing it over a three-phase four-wire network at a voltage of 0.4 kV., Which consists of a concrete sheath with equipment and a cable structure. The device is mounted in the factory and is a product of full factory readiness. After the installation of a small-sized block transformer substation in the reinforced concrete building MBKTP (B) at the place of operation, the power transformer is connected and the supply and output cables of high and low voltage (HV and LV), an external ground loop are connected. This embodiment ensures trouble-free operation of the product throughout the entire service life.

Claims (1)

A small-sized block transformer substation in a reinforced concrete casing installed on a cable structure, including a wall reinforced concrete block with a floor connected by a bolt connection to the roof plate, compartments of the power transformer, high and low voltage switchgears, openings for input and output of cables to the switchgears and draining oil from a power transformer, characterized in that, in order to ensure quality, the installation of electrical equipment is carried out in production ennyh conditions after installation compact modular transformer substation in a reinforced concrete building on-site, the connection is a power transformer and the feeding and outlet connection cables of high and low voltage external grounding circuit.