CN217182742U

CN217182742U - Neutral point grounding resistor cabinet of transformer

Info

Publication number: CN217182742U
Application number: CN202221077916.3U
Authority: CN
Inventors: 左忠辉; 董文忠
Original assignee: Baoding Xinnuoxiang Electric Co ltd
Current assignee: Baoding Xinnuoxiang Electric Co ltd
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-08-12
Anticipated expiration: 2032-05-07

Abstract

The utility model relates to the technical field of transformers, and discloses a transformer neutral point grounding resistance cabinet, which solves the problem that the normal operation of electrical elements is influenced by the overhigh temperature in the current cabinet body, and comprises a cabinet body, wherein a base is fixedly arranged at the bottom of the cabinet body, a cabinet door is arranged on the front side of the cabinet body, an observation window is arranged on the front side of the cabinet door, a resistance intelligent controller is arranged on the left side of the cabinet door, a lighting switch is arranged below the resistance intelligent controller, and a terminal row hole is arranged below the lighting switch; the utility model discloses, through the cooperation between connecting plate and connecting rod and the mounting panel, then can make two sleeves keep away from each other to make reset spring tensile, and can make two sleeves be close to each other when reset spring resets, then can make sleeve and solid fixed cylinder laminating, and can be fixed mounting panel and fixed plate through the bolt, thereby be convenient for install two fans in the both sides of the cabinet body, thereby be convenient for dispel the heat to the internal portion of cabinet.

Description

Neutral point grounding resistor cabinet of transformer

Technical Field

The utility model belongs to the technical field of the transformer, specifically be a transformer neutral point grounding resistance cabinet.

Background

The transformer neutral point grounding resistance cabinet is used for a 6-35 kV system, in a cable power supply system, grounding capacitance current is large, when the current is larger than a specified value, arc light grounding overvoltage is possibly generated, the neutral point adopts a resistance grounding mode, namely, resistive current is injected into a fault point, the resistance component current of the neutral point is 1.05-1.1 times of the capacitance component current, the fault current can be limited properly, the relay protection sensitivity is improved, meanwhile, the fault point is only possibly slightly damaged locally, the transient overvoltage is limited to 2.6 times of normal voltage relative to the neutral point, the arc light overvoltage is prevented from damaging main equipment, and meanwhile, the ferromagnetic resonance overvoltage is remarkably acted.

The existing transformer neutral point grounding resistance cabinet is not provided with a mechanism for dissipating heat inside the transformer neutral point grounding resistance cabinet, so that the normal operation of electrical elements is easily influenced due to overhigh internal temperature.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a transformer neutral point grounding resistance cabinet has effectually solved the problem that the internal portion high temperature of present cabinet influences electrical components's normal operating.

In order to achieve the above object, the utility model provides a following technical scheme: a transformer neutral point grounding resistance cabinet comprises a cabinet body, wherein a base is fixedly installed at the bottom of the cabinet body, a cabinet door is installed on the front surface of the cabinet body, an observation window is installed on the front surface of the cabinet door, a resistance intelligent controller is installed on the left side of the cabinet door, a lighting switch is installed below the resistance intelligent controller, a terminal block is installed below the lighting switch, a heat dissipation mechanism is installed on the outer side of the cabinet body, and heat dissipation holes are formed in the top of the cabinet body at equal intervals;

the heat dissipation mechanism is including being fixed in the fixed plate at the cabinet body back, and the back mounted of fixed plate has the mounting panel, installs the bolt between mounting panel and the fixed plate, and the connecting plate is all installed to the both sides of mounting panel, and the equal fixed mounting in one end of two connecting plates has the sleeve, and the fan is all installed to two telescopic insides.

Preferably, the connecting rods are movably sleeved on two sides of the mounting plate, and one ends, far away from each other, of the two connecting rods are fixedly connected with the two connecting plates respectively.

Preferably, a return spring is connected between the connecting plate and the mounting plate, and the return spring is movably sleeved with the connecting rod.

Preferably, the both sides of the cabinet body are all fixed mounting have a fixed section of thick bamboo, and a fixed section of thick bamboo and sleeve laminating, the locating hole has been seted up to one side uniform angle of a fixed section of thick bamboo, and angular fixedly connected with locating lever, locating lever and locating hole joint are such as telescopic one side.

Preferably, one side of the fixed cylinder is provided with a side groove, the inner side of the side groove is provided with an installation frame, the inner side of the installation frame is fixedly provided with a filter screen, and the two sides of the installation frame are fixedly provided with installation sleeves.

Preferably, the inner side of the side groove is fixedly provided with two limiting rods, and the two limiting rods are movably connected with the mounting frame.

Preferably, two pressure levers are fixedly mounted on one side of the sleeve, and one ends of the two pressure levers are respectively located inside the two mounting sleeves.

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

(1) the utility model discloses, through the cooperation between connecting plate and connecting rod and the mounting panel, then can make two sleeves keep away from each other to make reset spring tensile, and can make two sleeves be close to each other when reset spring resets, then can make sleeve and fixed cylinder laminate, and can fix mounting panel and fixed plate through the bolt, thereby be convenient for install two fans in the both sides of the cabinet body, thereby be convenient for dispel the heat to the internal portion of cabinet;

(2) this is novel through the cooperation between installing frame and the gag lever post, can place the filter screen in the inside of side channel, and when the sleeve was installed on the solid fixed cylinder, can be so that the one end of depression bar is located the inside of installation cover to the installation of the filter screen of being convenient for is convenient for filter the air in the external world.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the cabinet body structure of the present invention;

FIG. 3 is a schematic view of the heat dissipation mechanism of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3 according to the present invention;

FIG. 5 is a schematic structural view of the fixing cylinder of the present invention;

in the figure: 1. a cabinet body; 2. an observation window; 3. a base; 4. a terminal block; 5. a light switch; 6. a resistance intelligent controller; 7. a cabinet door; 8. a heat dissipation mechanism; 801. a fixing plate; 802. a sleeve; 803. a fan; 804. a connecting plate; 805. mounting a plate; 806. a bolt; 807. a fixed cylinder; 808. a return spring; 809. a connecting rod; 8010. installing a frame; 8011. a limiting rod; 8012. positioning a rod; 8013. a pressure lever; 8014. a side groove; 8015. installing a sleeve; 8016. positioning holes; 8017. a filter screen; 9. and (4) heat dissipation holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Embodiment one, given by fig. 1-5, the utility model discloses a cabinet body 1, the bottom fixed mounting of the cabinet body 1 has base 3, and cabinet door 7 is installed in the front of the cabinet body 1, and observation window 2 is installed in the front of cabinet door 7, and resistance intelligent control 6 is installed in the left side of cabinet door 7, and lighting switch 5 is installed to resistance intelligent control 6's below, and terminal row 4 is installed to lighting switch 5's below, and heat dissipation mechanism 8 is installed in the outside of the cabinet body 1, and the top equidistance of the cabinet body 1 is equipped with louvre 9.

Second embodiment, on the basis of the first embodiment, the heat dissipation mechanism 8 includes a fixing plate 801 fixed on the back of the cabinet 1, a mounting plate 805 is installed on the back of the fixing plate 801, a bolt 806 is installed between the mounting plate 805 and the fixing plate 801, connecting plates 804 are installed on both sides of the mounting plate 805, sleeves 802 are fixedly installed on one ends of the two connecting plates 804, fans 803 are installed inside the two sleeves 802, connecting rods 809 are movably sleeved on both sides of the mounting plate 805, the ends of the two connecting rods 809 away from each other are fixedly connected with the two connecting plates 804, a return spring 808 is connected between the connecting plates 804 and the mounting plate 805, the return spring 808 is movably sleeved with the connecting rods 809, fixing cylinders 807 are fixedly installed on both sides of the cabinet 1, the fixing cylinders are attached to the sleeves 802, positioning holes 8016 are formed in one side of the fixing cylinders 807 at an equal angle, positioning rods 8012 are fixedly connected to one side of the sleeves 802 at an equal angle, the positioning rod 8012 is clamped with the positioning hole 8016;

firstly, the connecting plates 804 on two sides are moved to drive the two sleeves 802 to be away from each other, the return springs 808 on two sides are stretched, then the mounting plate 805 is attached to the fixing plate 801, the mounting plate 805 is fixed to the fixing plate 801 through the bolts 806, then the two connecting plates 804 are released from being controlled, the return springs 808 on two sides are reset to drive the two connecting plates 804 to be close to each other, then the two sleeves 802 are driven to be close to each other until the sleeves 802 are attached to the fixing cylinder 807, meanwhile, the positioning rod 8012 is located inside the positioning hole 8016, finally the fan 803 is installed, and then air blowing and heat dissipation are performed on the inside of the cabinet body 1 through the filter screen 8017.

In the third embodiment, on the basis of the first embodiment, a side groove 8014 is arranged on one side of the fixing cylinder 807, an installation frame 8010 is arranged on the inner side of the side groove 8014, a filter screen 8017 is fixedly installed on the inner side of the installation frame 8010, installation sleeves 8015 are fixedly installed on both sides of the installation frame 8010, two limiting rods 8011 are fixedly installed on the inner side of the side groove 8014, the two limiting rods 8011 are movably connected with the installation frame 8010, two pressing rods 8013 are fixedly installed on one side of the sleeve 802, and one ends of the two pressing rods 8013 are respectively located inside the two installation sleeves 8015;

first place filter screen 8017 in the inside of side groove 8014, when sleeve 802 and the laminating of a fixed section of thick bamboo 807, depression bar 8013 extrudes installation cover 8015 this moment, installs filter screen 8017 at last to prevent to filter the air that enters into cabinet body 1 inside.

The working principle is as follows: when the cabinet is used, the filter screen 8017 is placed inside the side groove 8014, the connecting plates 804 on two sides are moved to drive the two sleeves 802 to be away from each other, the return springs 808 on two sides are stretched at the moment, the mounting plate 805 is attached to the fixing plate 801, the mounting plate 805 is fixed to the fixing plate 801 through the bolts 806, control over the two connecting plates 804 is released, the return springs 808 on two sides are reset to drive the two connecting plates 804 to be close to each other at the moment, the two sleeves 802 are driven to be close to each other until the sleeves 802 are attached to the fixing cylinder 807, the positioning rod 8012 is located inside the positioning hole 8016, the pressing rod 8013 presses the mounting sleeve 8015, the fan 803 and the filter screen 8017 are mounted, air blowing and heat dissipation are performed on the inside of the cabinet body 1 through the filter screen 8017, and air entering the cabinet body 1 is filtered by the filter screen 8017.

Claims

1. The utility model provides a transformer neutral point resistance to ground cabinet, includes the cabinet body (1), its characterized in that: the intelligent cabinet is characterized in that a base (3) is fixedly installed at the bottom of the cabinet body (1), a cabinet door (7) is installed on the front of the cabinet body (1), an observation window (2) is installed on the front of the cabinet door (7), a resistance intelligent controller (6) is installed on the left side of the cabinet door (7), a lighting switch (5) is installed below the resistance intelligent controller (6), a terminal row (4) is installed below the lighting switch (5), a heat dissipation mechanism (8) is installed on the outer side of the cabinet body (1), and heat dissipation holes (9) are formed in the top of the cabinet body (1) at equal intervals;

the heat dissipation mechanism (8) comprises a fixing plate (801) fixed on the back of the cabinet body (1), a mounting plate (805) is mounted on the back of the fixing plate (801), a bolt (806) is mounted between the mounting plate (805) and the fixing plate (801), connecting plates (804) are mounted on two sides of the mounting plate (805), sleeves (802) are fixedly mounted at one ends of the two connecting plates (804), and fans (803) are mounted inside the two sleeves (802).

2. The transformer neutral point grounding resistance cabinet according to claim 1, characterized in that: connecting rods (809) are movably sleeved on two sides of the mounting plate (805), and one ends, far away from each other, of the two connecting rods (809) are fixedly connected with the two connecting plates (804) respectively.

3. The transformer neutral point grounding resistance cabinet according to claim 1, characterized in that: and a return spring (808) is connected between the connecting plate (804) and the mounting plate (805), and the return spring (808) is movably sleeved with the connecting rod (809).

4. The transformer neutral point grounding resistance cabinet according to claim 1, characterized in that: the utility model discloses a cabinet body, including cabinet body (1), the equal fixed mounting in both sides of cabinet body (1) has a fixed section of thick bamboo (807), and fixed section of thick bamboo (807) and sleeve (802) laminating, one side of a fixed section of thick bamboo (807) is equiangular and has been seted up locating hole (8016), one side of sleeve (802) is equiangular fixedly connected with locating lever (8012), locating lever (8012) and locating hole (8016) joint.

5. The transformer neutral point grounding resistance cabinet according to claim 4, characterized in that: one side of the fixed cylinder (807) is provided with a side groove (8014), the inner side of the side groove (8014) is provided with an installation frame (8010), the inner side of the installation frame (8010) is fixedly provided with a filter screen (8017), and both sides of the installation frame (8010) are fixedly provided with installation sleeves (8015).

6. The transformer neutral point grounding resistance cabinet according to claim 5, characterized in that: two limiting rods (8011) are fixedly mounted on the inner side of the side groove (8014), and the two limiting rods (8011) are movably connected with the mounting frame (8010).

7. The transformer neutral point grounding resistance cabinet according to claim 1, characterized in that: two pressing rods (8013) are fixedly mounted on one side of the sleeve (802), and one ends of the two pressing rods (8013) are located inside the two mounting sleeves (8015) respectively.