CN219576337U - External grounded 10kV outdoor isolating switch box - Google Patents

Abstract

The utility model relates to the technical field of power engineering, in particular to an externally grounded 10kV outdoor isolating switch box. Including being located the double viewing aperture of chamber door upper and lower portion, can observe isolator and cable head's condition in the box simultaneously, use copper nose cable head to connect female arranging simultaneously, avoid cable head ageing to overhaul the influence that leads to the fact to seal the line through external ground, avoided the reverse power transmission condition that the circuit appears after the ground connection switch closure. The box is simple in arrangement, high in practicality and popularization value based on box body change.

Description

External grounded 10kV outdoor isolating switch box

Technical Field

The utility model relates to the technical field of power engineering, in particular to an externally grounded 10kV outdoor isolating switch box.

Background

The 10kV isolating switch box is one kind of common high voltage switch equipment comprising concrete foundation, box, door, inner components, etc. for separating and closing small current circuit. When a certain line is required to be overhauled, the isolating switch of the line to be overhauled is usually separated from the isolating switch box, then the grounding disconnecting link of the isolating switch box is closed, and a worker can carry out corresponding overhauling work on the line.

At present, a conventional isolating switch box can generally meet the requirement of maintenance personnel, and when a ring network line is maintained, a reverse power transmission phenomenon can occur after a grounding disconnecting link of the switch box is closed, so that equipment and personal safety accidents are caused; the existing incoming cable heads of the isolating switch box are usually European plug heads, and the later period is inconvenient for an maintainer to take and connect the cable heads; the existing isolating switch box body is not provided with an observation port, an external person cannot visually see the internal condition of the box body under the electrified condition, and especially the internal condition of the box body can be visually seen only through an electrified display or by opening the box body at the core positions of the isolating switch, the isolating switch and the wire inlet cable head.

Disclosure of Invention

The utility model aims to provide an externally grounded 10kV outdoor isolating switch box, which aims at solving the problems that in the prior art, an isolating switch box is easy to reversely transmit power, an European cable plug is difficult to access and difficult to observe in the box.

In order to achieve the above purpose, the technical scheme adopted by the utility model is to provide an externally grounded 10kV outdoor isolating switch box, which comprises a box door and a box body which are connected with each other, wherein the box door is used for opening or closing the box body; the cable head in the box body is provided with a copper nose and is connected with the busbar; the box body is also provided with a grounding sealing wire installation busbar for connecting an external grounding sealing wire.

Preferably, the circuit connection in the box body is a main bus in sequence, the isolating switch is connected with the electromagnetic lock in series, the display with the point is connected with the lightning arrester in parallel, and the display with the point is connected with the electromagnetic lock in series and then connected with the cable head in series.

Preferably, the lightning arrester is connected in parallel to the main line and grounded.

Preferably, the cable head comprises an incoming cable and an outgoing cable.

Preferably, the copper nose is an all red copper DT copper nose.

Preferably, the external grounding sealing wire is arranged outside the box body, one end of the external grounding sealing wire is grounded, and the other end of the external grounding sealing wire is connected with the grounding sealing wire busbar.

Preferably, the viewing port is a transparent epoxy plate.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

the utility model provides an externally grounded 10kV outdoor isolating switch box, which is provided with upper and lower double rows of observation ports, so that the faults of an isolating switch and a cable head in the box can be observed, and the influence on maintenance when an electrified display and an electromagnetic lock are in fault is avoided. The grounding wire sealing busbar is connected with the external grounding wire sealing, so that reverse power transmission caused during line overhaul is avoided, meanwhile, the copper nose cable head is used, the problem caused by taking and connecting operation of an maintainer during cable head ageing can be effectively prevented, and the ring network overhaul efficiency is improved.

Drawings

FIG. 1 is a diagram of the electrical main wiring within the enclosure of the present utility model;

FIG. 2 is a schematic view of an in-box wire seal mounting busbar of the present utility model;

FIG. 3 is a front view of the switch box of the present utility model;

FIG. 4 is a side view of the switch box of the present utility model;

fig. 5 is a top view of the switch box of the present utility model.

The marks in the figure: the intelligent cabinet temperature sensor comprises a single cabinet body in a 1-box body, a 2-main bus, a 3-isolating switch, a 4-electromagnetic lock, a 5-lightning arrester, a 6-display with a point, a 7-cable head, an 8-box body lower foundation, a 9-inspection well, a 10-manhole well, a 11-main cable trench, a 12-box body, a 13-observation port, a 14-warning sign, a 15-vent, a 16-latch bolt, a 17-box body hanging ring, a 18-box door lock, a 19-character sign, a 20-cable laying indication and a 21-grounding wire sealing bus.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

Referring to fig. 1, the external grounded 10kV outdoor isolation switch box provided by the utility model has the advantages that an internal electric main line is connected with a main bus 2, an isolation switch 3 and an electromagnetic lock 4 in series, a lightning arrester 5 is connected with a display 6 with a point in parallel, and is connected with the electromagnetic lock 4 in series and then is connected with a cable head 7 in series. Wherein, cable head 7 sets up to copper nose connection busbar, prevents to get, connect difficult problem that causes behind the cable head ageing.

Specifically, the grounding seal wire is externally hung, and when an maintainer needs to power off and ground to overhaul, the grounding seal wire busbar 21 is connected with the external grounding seal wire, so that the equipment is grounded.

Referring to fig. 2, the box structure of the present utility model comprises a box door and a box body 12, wherein the box door is connected with each other, the box door is used for opening or closing the box body 12, the box door is provided with double rows of observation ports 13, which are respectively positioned at the upper part and the lower part of the box door, and are used for observing the isolating switch 3 and the cable head 7 in the box body.

When the box body is electrified, the electrified point display 6 senses the electrification, the box door lock can not be opened by the attraction of the relay on the electromagnetic lock 4, and the fault position can be observed through the observation port 13 of the utility model to judge whether the maintenance is needed. The upper observation port is used for observing the opening and closing condition of the isolating switch 3, and the lower observation port is used for observing the state of the cable head 7.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (7)

1. The externally grounded 10kV outdoor disconnecting switch box comprises a box door and a box body (12) which are connected with each other, wherein the box door is used for opening or closing the box body (12), and the externally grounded 10kV outdoor disconnecting switch box is characterized in that the box door is provided with double-row observing ports (13) which are respectively positioned at the upper part and the lower part of the box door and used for observing a disconnecting switch (3) and a cable head (7) in the box body; the cable head in the box body (12) is provided with a copper nose and is connected with the busbar; the box body (12) is also provided with a grounding sealing line busbar (21) for connecting an external grounding sealing line.

2. The externally grounded 10kV outdoor isolating switch box according to claim 1, wherein the circuit connection in the box body is sequentially a main bus (2), the isolating switch (3) and the electromagnetic lock (4) are connected in series, the point display (6) is connected in parallel with the lightning arrester (5) and then connected in series with the electromagnetic lock (4) and then connected in series with the cable head (7).

3. An externally grounded 10kV outdoor disconnector tank according to claim 2, characterized in that the lightning arrester (5) is connected in parallel to the main line and to ground.

4. An externally grounded 10kV outdoor disconnector compartment according to claim 1, characterized in that the cable head (7) comprises an incoming cable and an outgoing cable.

5. The externally grounded 10kV outdoor disconnector compartment of claim 1, wherein the copper nose is a full red copper DT copper nose.

6. An externally grounded 10kV outdoor disconnector housing according to claim 1, characterized in that the externally grounded sealing wire is arranged outside the housing (12), with one end grounded and one end connected to the busbar.

7. An externally grounded 10kV outdoor disconnector compartment according to claim 1, characterized in that the viewing port (13) is a transparent epoxy plate.