CN203932736U - A kind of screen cabinet for the online discharge system of storage batteries of transformer substation - Google Patents

Abstract

The utility model discloses a screen cabinet used for the on-line discharge system of a storage battery in a substation, comprising: a cabinet body; a front panel, left and right side panels, a rear door, a base and an upper cover arranged on the cabinet body; There is an intermediate partition between them; the upper cover is provided with cooling holes; the partition is used for installing electrical components. The utility model solves the heat dissipation problem of the existing screen cabinet, has simple structure, low cost and is convenient for large-scale popularization and application.

Description

A screen cabinet for on-line discharge system of substation battery

technical field

The utility model relates to the technical field of electrical equipment, in particular to a screen cabinet for an on-line discharge system of a storage battery in a substation.

Background technique

At present, the power industry generally adopts "load-type" discharge technology to carry out battery check discharge tests to find out the problems existing in battery packs and single cells. In the process of practice, it is found that this method has disadvantages such as complicated operation, heavy workload, and potential safety hazards such as heating.

However, no matter whether electric heating device or active inverter discharge device is used for battery I ₁₀ discharge test, the battery pack must be separated from the DC bus and replaced by a spare battery pack. In the case where there is only one set of battery packs in the station, during the discharge of the nuclear capacity, once a failure such as mains interruption occurs, the battery packs cannot provide backup power to the DC bus in time, which will bring potential safety hazards.

There are many control components and circuits in the screen cabinet. During the working process, the control components in the screen cabinet will emit a lot of heat. If the heat is not dissipated in time, the temperature in the screen cabinet will rise and cause the control system to fail. Failure will not only affect the normal operation performance of the equipment, but also the long-term accumulation of heat will bring greater safety hazards to the components and lines in the panel cabinet.

Therefore, how to solve the problem of slow heat dissipation of traditional screen cabinets to ensure the normal operation of the control system has become a technical problem to be solved urgently by those skilled in the art.

Utility model content

The purpose of the utility model is to provide a screen cabinet for the on-line discharge system of the storage battery in a substation, which solves the heat dissipation problem of the existing screen cabinet, has a simple structure, low cost, and is convenient for large-scale popularization and application.

In order to achieve the above purpose, the utility model is realized through the following technical solutions: a screen cabinet for an on-line discharge system of a battery in a substation, which is characterized in that it includes:

Cabinet;

The front panel, left side panel, right side panel, rear door, base and upper cover arranged on the cabinet body;

an intermediate partition arranged between the front panel and the rear door;

The upper cover is provided with cooling holes;

The intermediate partition is used for installing electrical components.

The back door adopts double-sided opening structure.

The rear door is provided with an air inlet.

The upper cover is provided with a fan installation hole.

The front panel adopts a detachable sealing plate structure.

The front panel adopts a rotatable structure.

The left side panel and the right side panel adopt a living body structure.

Display instruments and control buttons are installed on the front panel.

The top of the intermediate partition is provided with a wire slot.

Compared with the prior art, the screen cabinet used for the on-line discharge system of the storage battery of the utility model has the following advantages: the air inlet and the air exhaust port are arranged to achieve the effect of ventilation inside and outside the screen cabinet and reduce the temperature inside the screen cabinet. ;The front panel is detachable or rotatable to achieve fast and reliable closure. When the screen cabinet fails, the maintenance personnel can check the working status of the electrical components in the screen cabinet online, which greatly facilitates the troubleshooting of the fault.

Description of drawings

Fig. 1 is a front view of a screen cabinet used for an on-line discharge system of a substation battery according to the utility model.

Fig. 2 is a rear view of a screen cabinet used in the on-line discharge system of a substation battery according to the utility model.

Fig. 3 is a left view of a screen cabinet used in an on-line discharge system for a substation battery according to the present invention.

Fig. 4 is a right side view of a screen cabinet used for an on-line discharge system of a substation battery according to the present invention.

Fig. 5 is a top view of a panel cabinet used in the on-line discharge system of a substation battery according to the present invention.

Fig. 6 is a bottom view of a screen cabinet used in the on-line discharge system of a substation battery according to the present invention.

Fig. 7 is a schematic diagram of the overall structure of the intermediate partition.

Detailed ways

The utility model will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

As shown in Figures 1 to 6, a screen cabinet for the on-line discharge system of a substation battery includes: a cabinet body, which is the main structure of the entire screen cabinet; a front panel 1 and a left side panel arranged on the cabinet body 2 The right side panel 3, the rear door 4, the base 5 and the upper cover 6; the intermediate partition 7 arranged between the front panel 1 and the rear door 4; the upper cover 6 is provided with cooling holes 61; the intermediate partition 7 Used to install electrical components. The back door 4 adopts a double-sided open structure, and the inside is designed with a place for placing documents. The rear door 4 is provided with an air inlet. The upper cover is provided with a fan installation hole 62 . The front panel 1 adopts a detachable sealing plate structure. The front panel 1 adopts a rotatable structure. The left side panel 2 and the right side panel 3 adopt a living body structure, which can be easily opened for wiring and transportation. A display instrument and control buttons are installed on the inside of the front panel 1, which is convenient for observation and operation. The upper end of the middle partition board 7 is provided with a wire groove, which is convenient for wiring.

Specific application: As shown in Figure 7, the electrical components installed on the intermediate partition 7 mainly include a contactor 71, an intermediate relay 72, an online control board 73, a freewheeling diode 74, a current limiting resistor 75, a Hall sensor 76, and a fuse 77, indicator light 78, auxiliary power supply 79, emergency switch 70 etc.

Although the content of the present invention has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions of the present utility model will be obvious to those skilled in the art after reading the above content. Therefore, the protection scope of the present utility model should be defined by the appended claims.

Claims (9)

1. for a screen cabinet for the online discharge system of storage batteries of transformer substation, it is characterized in that, comprise:

Cabinet;

Be arranged on front panel (1), left plate (2), right plate (3), back door (4), base (5) and upper cover (6) on cabinet;

Be arranged on the central dividing plate (7) between front panel (1) and back door (4);

Described upper cover (6) is provided with louvre (61);

Described central dividing plate (7) is for installing electric elements.

2. screen cabinet as claimed in claim 1, is characterized in that, described back door (4) adopts two-sided to opening structure.

3. screen cabinet as claimed in claim 1 or 2, is characterized in that, described back door is provided with air inlet (41).

4. screen cabinet as claimed in claim 1, is characterized in that, described upper cover (6) is provided with fan installing hole (62).

5. screen cabinet as claimed in claim 1, is characterized in that, described front panel (1) adopts detachable closing plate structure.

6. screen cabinet as claimed in claim 1, is characterized in that, described front panel (1) adopts rotary type structure.

7. screen cabinet as claimed in claim 1, is characterized in that, described left plate (2) and right plate (3) adopt live body formula structure.

8. screen cabinet as claimed in claim 1, is characterized in that, on described front panel (1) inner side, Displaying Meter and control button is installed.

9. screen cabinet as claimed in claim 1, is characterized in that, described central dividing plate (7) upper end is provided with wire casing.