CN212366622U - Low-voltage prefabricated substation - Google Patents

Abstract

The utility model discloses a low-voltage prefabricated substation, which adopts the technical scheme that the substation comprises a high-voltage chamber, a transformer chamber and a low-voltage chamber which are sequentially arranged side by side, wherein the transformer chamber comprises an emergency exit and a control circuit which are positioned at the inner side of a box door, a fixed block is arranged on the side wall of the transformer chamber, a safety switch which can be abutted against the emergency exit is arranged on the fixed block, the safety switch is electrically connected with the control circuit, when the emergency exit is in a closed state, the emergency exit is abutted against the safety switch, and the transformer chamber is electrified; when the emergency exit is in the open mode, the emergency exit separates from the safety switch, and the transformer room is powered off, so that the problems of complexity and uncertainty in controlling the power off and on of the transformer room through the master controller in the prior art are solved.

Description

Low-voltage prefabricated substation

Technical Field

The utility model relates to a transformer substation technical field, more specifically the utility model relates to a low pressure prepackage type transformer substation that says so.

Background

A substation is a location where voltage is changed. In order to transmit the electric energy generated by the power plant to a remote place, the voltage must be increased to become high voltage, and then the voltage is reduced as required by the user accessories, and the voltage increasing and reducing work is completed by a transformer substation. The transformer substation is provided with a plurality of box-type transformer substations, integrates a high-voltage switch cabinet, a transformer chamber and a low-voltage switch cabinet, and is one of novel economical, practical, scientific and safe distribution devices in the current distribution system, when the transformer fails, maintenance personnel need to maintain the transformer chamber, and the transformer chamber needs to be powered off before maintenance so as to ensure the life safety of the maintenance personnel; if the operation is not in place or maintenance personnel forget carelessly, and the transformer room is not powered off, the life of the maintenance personnel is threatened, and a low-voltage prefabricated substation with high power-off efficiency, safety and stability needs to be designed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a low pressure prepackage type transformer substation of efficient and safety and stability of outage.

In order to achieve the above purpose, the utility model provides a following technical scheme: a low-voltage prefabricated substation comprises a high-voltage chamber, a transformer chamber and a low-voltage chamber which are sequentially arranged side by side, wherein the transformer chamber comprises a safety door and a control circuit which are positioned on the inner side of a box door, a fixed block is arranged on the side wall of the transformer chamber, a safety switch capable of being abutted against the safety door is arranged on the fixed block, the safety switch is electrically connected with the control circuit, when the safety door is in a closed state, the safety door is abutted against the safety switch, and the transformer chamber is electrified; when the safety door is in an opening state, the safety door is separated from the safety switch, and the transformer chamber is powered off.

As a further improvement, the fixed block is located directly over the emergency exit, safety switch is located the lower terminal surface of fixed block, safety switch including can with emergency exit top edge relative movement glide plane, the lower extreme of glide plane is less than the upper surface of emergency exit, and the high-end of glide plane is higher than the upper surface of emergency exit, and at the emergency exit by opening the in-process of closing, emergency exit top edge relative glide plane slides to safety switch's below and inconsistent with safety switch's bottom.

As the utility model discloses a further improvement, safety switch is including the switch contact with articulate the rolling member on the switch contact, the slip plane is located the rolling member, the upper surface place height that highly is less than the rotation center place height of rolling member at the upper surface place of emergency exit, when the emergency exit closure target in place, the upper surface of emergency exit is inconsistent with the bottom of rolling member.

As a further improvement, the fixed block is provided with a wire slot for the control circuit to hold, and the control circuit passes through the wire slot and is connected with the safety switch electricity.

As a further improvement of the utility model, still be provided with the apron that is used for covering the wire casing on the fixed block.

As a further improvement of the utility model, the cover plate is provided with an air vent for heat dissipation.

The utility model has the advantages that: set up the fixed block on the lateral wall of transformer room to set up safety switch on the fixed block, whether inconsistent realize the transformer indoor circular telegram through control emergency exit and safety switch, so the design is compared prior art and is adopted remote controller control's mode to enable transformer room outage or circular telegram in time, and is efficient and stable, has ensured maintainer's life safety.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 1;

FIG. 4 is an enlarged view at B in FIG. 2;

fig. 5 is a schematic view illustrating a state of the safety switch of fig. 4 after the safety door is opened.

Reference numerals: 1. a high pressure chamber; 2. a transformer chamber; 3. a low pressure chamber; 4. a safety door; 5. a fixed block; 6. a safety switch; 7. a slip surface; 8. a switch contact; 9. a rolling member; 10. a wire slot; 11. a cover plate; 12. and (4) a vent hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals.

Referring to fig. 1 to 5, the low-voltage prefabricated substation of the present embodiment includes a high-voltage chamber 1, a transformer chamber 2, and a low-voltage chamber 3, which are sequentially arranged side by side, the transformer chamber 2 includes a safety door 4 and a control circuit, the safety door 4 is located on an inner side of a door, based on the prior art, a fixing block 5 is disposed on a side wall of the transformer chamber 2, the fixing block 5 is selected from a plurality of positions, for example, above and below the safety door 4 or after the safety door 4 is closed, the fixing block 5 is preferably disposed above the safety door 4, a safety switch 6 is disposed on a lower end surface of the fixing block 5 and electrically connected to the control circuit, the safety switch 6 is a tact switch, the safety switch 6 includes a sliding surface 7 capable of moving relative to an upper edge of the safety door 4, the sliding surface 7 is disposed toward an outer side of the safety door 4, a lowest, the high end of the sliding surface 7 is higher than the upper surface of the safety door 4;

in an initial state, the transformer chamber 2 works normally, the safety door 4 is in a closed state, the bottom ends of the safety switches 6 of the safety door 4 are abutted, and the safety switches 6 are in a closed state; when the transformer chamber 2 breaks down, the safety door 4 is opened, the safety door 4 is separated from the safety switch 6, the safety switch 6 is in a spring-open state, and the inside of the transformer chamber 2 is in a broken state; after the transformer chamber 2 is repaired, the safety door 4 is closed, the upper edge of the safety door 4 slides relative to the sliding surface 7 on the safety switch 6, and the safety door 4 cannot move in the vertical direction, so that the safety switch 6 moves up and down under the jacking action of the safety door 4 until the upper edge of the safety door 4 moves to the position below the safety switch 6, the upper surface of the safety door 4 is abutted against the bottom end of the safety switch 6, the safety switch 6 is in a closed state, and the transformer chamber 2 is electrified;

compared with the prior art, the design adopts a remote controller control mode to ensure that the transformer chamber 2 is powered off or powered on in time, the efficiency is high and stable, and the life safety of maintenance personnel is ensured; the safety switch 6 is arranged above the safety door 4, and the safety switch 6 is arranged below the safety door 4, so that the condition that the safety switch 6 can be automatically closed due to self weight can be avoided, and the defect that the safety switch 6 pushes the safety door 4 outwards to influence the closing of the safety door 4 can be avoided by arranging the safety switch 6 on the inner side of the safety door 4.

As an improved specific embodiment, referring to fig. 3 to 5, the safety switch 6 includes a switch contact 8 and a rolling member 9 hinged on the switch contact 8, the sliding surface 7 is located on the rolling member 9, the height of the upper surface of the safety door 4 is lower than the height of the rotation center of the rolling member 9, the rolling member 9 can be a roller, and the roller is connected with the switch contact 8 through a shaft; rolling member 9 can be the spheroid, then the spheroid is ball-hinged with switch contact 8, two kinds of modes are selected according to actual demand, in emergency exit 4 by the open mode to the in-process of closed condition, rolling member 9 rolls by emergency exit 4 upper limb, rolling member 9 rolls by emergency exit 4 upper surface afterwards, until emergency exit 4 closes the back, rolling member 9 is static and inconsistent with emergency exit 4 upper surface, the design is compared the former embodiment and is changed sliding friction into rolling friction, the friction between emergency exit 4 and the rolling member 9 has been reduced, the wearing and tearing of emergency exit 4 and rolling member 9 have been slowed down simultaneously, service life between them has been prolonged.

As a modified specific embodiment, referring to fig. 3, a wire casing 10 for accommodating a control circuit is arranged on the fixed block 5, the control circuit passes through the wire casing 10 and is electrically connected with the safety switch 6, and the design of the wire casing 10 is beneficial to distinguishing wires and avoiding the phenomenon of messy and winding together.

As an improved specific embodiment, referring to fig. 3, a cover plate 11 for covering the wire slot 10 is further disposed on the fixing block 5, the wire slot 10 is disposed upward, the cover plate 11 is located above the fixing block 5, the cover plate 11 and the fixing block 5 can be connected together through a hinge, the cover plate 11 is designed to prevent a circuit from tilting or separating from the wire slot 10, and the control circuit is limited in the wire slot 10.

As a specific embodiment of the improvement, referring to fig. 3, a vent hole 12 for heat dissipation is formed in a cover plate 11, and the vent hole 12 is designed to dissipate heat generated by a control circuit in a trunking 10, so as to avoid the control circuit from being burned out and improve safety.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (6)

1. The utility model provides a low pressure prepackage type transformer substation, includes hyperbaric chamber (1), transformer room (2) and low-voltage chamber (3) that establish in proper order side by side, transformer room (2) are including emergency exit (4) and the control scheme that are located the chamber door inboard, its characterized in that: a fixing block (5) is arranged on the side wall of the transformer chamber (2), a safety switch (6) which can be abutted against the safety door (4) is arranged on the fixing block (5), the safety switch (6) is electrically connected with the control circuit, when the safety door (4) is in a closed state, the safety door (4) is abutted against the safety switch (6), and the transformer chamber (2) is electrified; when the safety door (4) is in an opening state, the safety door (4) is separated from the safety switch (6), and the transformer chamber (2) is powered off.

2. A low-voltage pre-installed substation according to claim 1, characterized in that: fixed block (5) are located emergency exit (4) directly over, safety switch (6) are located the lower terminal surface of fixed block (5), safety switch (6) including can with emergency exit (4) top edge relative movement glide plane (7), the lower extreme of glide plane (7) is less than the upper surface of emergency exit (4), and the high-end of glide plane (7) is higher than the upper surface of emergency exit (4), by opening the in-process of closing at emergency exit (4), emergency exit (4) top edge relative glide plane (7) slide to the below of safety switch (6) and inconsistent with the bottom of safety switch (6).

3. A low-voltage pre-installed substation according to claim 2, characterized in that: the safety switch (6) comprises a switch contact (8) and a rolling piece (9) hinged to the switch contact (8), the sliding surface (7) is located on the rolling piece (9), the height of the upper surface of the safety door (4) is lower than the height of the rotating center of the rolling piece (9), and when the safety door (4) is closed in place, the upper surface of the safety door (4) is abutted to the bottom end of the rolling piece (9).

4. A low-voltage pre-assembled substation according to claim 1, 2 or 3, characterized in that: the fixed block (5) is provided with a wire slot (10) for accommodating a control circuit, and the control circuit penetrates through the wire slot (10) and is electrically connected with the safety switch (6).

5. A low-voltage pre-assembled substation according to claim 4, characterized in that: and a cover plate (11) used for covering the wire groove (10) is further arranged on the fixing block (5).

6. A low-voltage pre-assembled substation according to claim 5, characterized in that: the cover plate (11) is provided with a vent hole (12) for heat dissipation.

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