CN220822398U - Reactive compensation arrangement structure of 110kV full indoor transformer substation - Google Patents

Abstract

The utility model belongs to the field of reactive power compensation of transformer substations, and provides a 110kV full-indoor transformer substation reactive power compensation arrangement structure which comprises a capacitor area and a reactor area, wherein a first cable trench is arranged between the capacitor area and the reactor area; the capacitor region includes three capacitor cells, wherein two capacitor cells are arranged in the same direction and perpendicular to the third capacitor cell. According to the utility model, by designing the three capacitor chambers into a scheme of 'two vertical and one horizontal', the arrangement positions of the capacitor chambers, the reactor chambers and the cable trenches are optimized, so that maintenance staff can finish inspection, maintenance or replacement of cables in the cable trenches without passing through the reactor main equipment area or the capacitor main equipment area.

Description

Reactive compensation arrangement structure of 110kV full indoor transformer substation

Technical Field

The utility model belongs to the field of reactive power compensation of transformer substations, and particularly relates to a 110kV full-indoor reactive power compensation arrangement structure of a transformer substation.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

Due to the design of the reactive compensation scheme, the hybrid reactive compensation scheme of the capacitor bank and the reactor in the 110kV transformer substation is widely applied. The general design scheme has strict limitation on the size of a distribution building in a 110kV transformer substation, the area of a reactive compensation arrangement area is 19m x 6m, a cable trench of the original arrangement of a reactor chamber and a capacitor chamber is arranged in the innermost part of a room, and when overhauling or replacing a cable, an overhauling personnel needs to pass through a reactor main equipment area or a capacitor main equipment area, so that certain potential safety hazards exist.

Disclosure of utility model

In order to solve the problems, the utility model provides a reactive compensation arrangement structure of a 110kV full indoor transformer substation, and the arrangement positions of a capacitor room, a reactor room and a cable trench are optimized by designing three capacitor rooms of the 110kV transformer substation into a scheme of 'two-to-one transverse', so that maintenance staff can finish inspection, maintenance or replacement of cables in the cable trench without passing through a reactor main equipment area or a capacitor main equipment area.

According to some embodiments, the present utility model employs the following technical solutions:

The reactive compensation arrangement structure of the 110kV all-indoor substation comprises a capacitor area and a reactor area, wherein a first cable trench is arranged between the capacitor area and the reactor area; the capacitor region includes three capacitor cells, wherein two capacitor cells are arranged in the same direction and perpendicular to the third capacitor cell.

Further, the reactor zone includes three reactor chambers.

Further, two reactor chambers are used mainly and the third reactor chamber is used for standby.

Further, a second cable trench is arranged in the reactor chamber at a position close to the door.

Further, the two capacitor chambers arranged in the same direction are perpendicular to the arrangement direction of the three reactor chambers.

Further, two capacitor chambers are active and the third capacitor chamber is standby.

Further, a third cable trench is provided in the third capacitor door in a region away from the capacitor main device.

Further, the first cable trench, the second cable trench and the third cable trench are in communication with each other.

Further, the first cable trough, the second cable trough and the third cable trough are all connected to a 10kV switchgear room.

Further, the reactive compensation arrangement area is 19m by 6m.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, by designing the three capacitor chambers of the 110kV transformer substation into a scheme of 'two vertical and one horizontal', the arrangement positions of the capacitor chambers, the reactor chambers and the cable trenches are optimized, so that maintenance staff can finish inspection, maintenance or replacement of the cables in the cable trenches without passing through the reactor main equipment area or the capacitor main equipment area.

According to the embodiment, the cable trenches of the reactor chamber of the 110kV transformer substation are uniformly distributed on one side close to the door, so that maintenance staff can maintain or replace the reactor without passing through the reactor main equipment area, and the safety of the maintenance staff is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a design drawing of an original distribution building reactive power compensation arrangement shown in the present utility model;

FIG. 2 is a schematic diagram of the reactive power compensation arrangement of the present distribution building shown in the present utility model;

The high-voltage power distribution device comprises a first capacitor room, a second capacitor room, a third capacitor room, a first reactor room, a second reactor room, a third reactor room, a 7 original cable trench, an 8 kV power distribution device room, a 10kV power distribution device room, a 9 kV power distribution device room, a second cable trench, a 10kV power distribution device room, a first cable trench, an 11 kV power distribution device room and a third cable trench, wherein the first capacitor room, the 2 capacitor room, the second capacitor room, the 3 capacitor room, the third capacitor room, the 4 capacitor room, the 5 capacitor room, the 6 capacitor room, the third reactor room, the 7 kV power distribution device room, the 9 kV power distribution device room, the second cable trench, the 10kV power distribution device room and the 11 kV power distribution device room.

Detailed Description

The utility model will be further described with reference to the drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

In the present utility model, terms such as "horizontal", "vertical", "outer", "inner", "vertical", "side", etc. refer to an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, and are merely relational terms, which are merely determined for convenience in describing the structural relationship of the components or elements of the present utility model, and do not denote any one of the components or elements of the present utility model, and are not to be construed as limiting the present utility model.

In the present utility model, terms such as "connected," "connected," and the like are to be construed broadly and mean either fixedly connected or integrally connected or detachably connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the present utility model can be determined according to circumstances by a person skilled in the relevant art or the art, and is not to be construed as limiting the present utility model.

Example 1

As described in the background art, according to a general design, the area of the reactive compensation arrangement area of a 110kV substation is 19m x 6m, and fig. 1 is a reactive compensation arrangement of an original distribution building of the 110kV substation, which is arranged in a row on one side of the distribution building, and is connected to an adjacent 10kV distribution device room 8 by an original cable trench 7 on the side far from the room door. In such a case, the reactive compensation arrangement areas, i.e. the capacitor area and the reactor area, all arrangement ranges are defined as 19m by 6m. Wherein the capacitor zone comprises a first capacitor chamber 1, a second capacitor chamber 2 and a third capacitor chamber 3, the reactor zone comprises a first reactor chamber 4, a second reactor chamber 5 and a third reactor chamber 6, and the original cable trenches 7 of the first capacitor chamber 1, the second capacitor chamber 2, the third capacitor chamber 3, the first reactor chamber 4, the second reactor chamber 5 and the third reactor chamber 6 are all arranged at the innermost part of the room.

In particular, the prior art solutions have been to arrange the cable duct on the side remote from the door. Taking the reactor chambers as an example, the original cable trenches 7 of the first reactor chamber 4, the second reactor chamber 5 and the third reactor chamber 6 are all arranged at the innermost part of the room, in which case the cables in the original cable trenches 7 are routinely patrolled, overhauled or replaced, and only need to pass through the main equipment area of the reactor to reach the cable trenches. In this case, the process of passing through the reactor main equipment area presents a safety hazard to service personnel. Therefore, as shown in fig. 2, in the case of the general design scheme, by arranging the cable trench 9 on the side, close to the door, in the reactor chamber door, the maintenance personnel can realize daily inspection, maintenance or replacement of the cable in the cable trench without passing through the reactor main equipment area, and the safety of the maintenance personnel is ensured.

In addition, in the embodiment, the cable trench 10 is arranged between the reactor area and the capacitor area of the 110kV transformer substation, the cable trench 10 is opposite to the room gate of the capacitor area in the capacitor area, and when overhauling or replacing a cable, an overhauling personnel does not need to pass through the main equipment area of the capacitor, so that the safety of the overhauling personnel is further ensured.

As shown in fig. 2, since three capacitor chambers are arranged in the capacitor area of the 110kV transformer substation in the present embodiment, the first capacitor chamber 1 and the second capacitor chamber 2 are arranged vertically, and the third capacitor chamber 3 is arranged horizontally, it is possible to reduce the arrangement area of the capacitor devices in the capacitor area, and more space is left for arranging the cable trenches.

Three reactor chambers in a reactor zone of the 110kV transformer substation are arranged in parallel, namely a first reactor chamber 4, a second reactor chamber 5 and a third reactor chamber 6, wherein the first capacitor chamber 1 and the second capacitor chamber 2 are vertical to the reactor chambers, and the third capacitor chamber 3 is parallel to the reactor chambers; and a third cable trench 11 is provided in the third capacitor chamber 3 door in a region remote from the capacitor main device. Further, maintenance staff can maintain or replace the cable without passing through the main equipment area of the capacitor.

Specifically, the first raceway 10, the second raceway 9, and the third raceway 11 are in communication with each other, and are all connected to the 10kV distribution device room 8.

It should be noted that the wiring relation and internal components of the reactor equipment and the capacitor equipment of the 110kV transformer substation are not changed, and the wiring relation and internal components are realized in the existing mode.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (3)

1. The reactive compensation arrangement structure of the 110kV all-indoor substation is characterized by comprising a capacitor area and a reactor area, wherein a first cable trench is arranged between the capacitor area and the reactor area; the capacitor area comprises three capacitor chambers, wherein the arrangement direction of two capacitor chambers is the same and is perpendicular to the arrangement direction of the third capacitor chamber;

the reactor zone comprises three reactor chambers;

a second cable trench is arranged in the reactor chamber at a position close to the door;

two capacitor chambers with the same arrangement direction are perpendicular to the arrangement direction of the three reactor chambers;

a third cable trench is arranged in the third capacitor chamber door and far away from the main equipment area of the capacitor;

The first cable trench, the second cable trench and the third cable trench are communicated with each other;

The first cable pit, the second cable pit and the third cable pit are all connected to a 10kV power distribution device room;

The first capacitor chamber and the second capacitor chamber are vertically arranged, and the third capacitor chamber is horizontally arranged, so that the arrangement area of capacitor equipment in the capacitor area is reduced, and the arrangement space of the cable trench is increased.

2. The reactive compensation arrangement of a 110kV full indoor substation of claim 1, wherein two reactor chambers are active and a third reactor chamber is standby.

3. The 110kV all-in-one substation reactive compensation arrangement according to claim 1, wherein the reactive compensation arrangement area is 19m x 6m.