CN212485865U

CN212485865U - Intelligent reactive power compensation cabinet

Info

Publication number: CN212485865U
Application number: CN202021629218.0U
Authority: CN
Inventors: 李小明; 蔡衍江; 黄家财; 陈金义
Original assignee: ZUNYI CHANGZHENG ELECTRICAL EQUIPMENT CO Ltd
Current assignee: ZUNYI CHANGZHENG ELECTRICAL EQUIPMENT CO Ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-02-05
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses an intelligence reactive compensation cabinet relates to reactive compensation cabinet technical field, can not reduce the power factor of power consumption enterprise to traditional reactive compensation cabinet, reduces reactive loss to and can not improve the simplification device, reduce the volume, reduce cost's problem, the scheme as follows is proposed now, the intelligent cabinet temperature adjusting device comprises a cabinet body, two hoist and mount installing supports of top fixedly connected with of the cabinet body, the instrument door is installed in the front left side of the cabinet body, inlet wire room instrument door is installed on the front right side of the cabinet body, the both sides fixedly connected with angle bar of the cabinet body, a plurality of heat dissipation windows of both sides fixedly connected with of the cabinet body, the back connection of the cabinet body has two back door openings. The utility model discloses active power's proportionality constant in the increase electric wire netting reduces the design capacity of sending out, power supply unit, reduces the investment, improves power factor, reduces the line loss rate to active power's delivery proportion in the increase electric wire netting increases the economic benefits of power supply enterprise.

Description

Intelligent reactive power compensation cabinet

Technical Field

The utility model relates to a reactive power compensation cabinet technical field especially relates to an intelligence reactive power compensation cabinet.

Background

The intelligent reactive power compensation device can improve the power factor of power utilization enterprises by optimizing the compensation technology, reduce reactive loss, meet the requirements of users on the quality of electric energy, and balance reactive load power for safe operation of a power grid. In a low-voltage power supply system, a low-voltage reactive power compensation device has the function of providing reactive power to inductive load equipment nearby, the operation parameters of a power grid are detected, the operation is reduced, the identification precision of the power grid parameters is improved, a capacitor bank is switched according to a control rule, the voltage quality of the regional power grid is improved, and the reactive power stability of a power system is realized. The modularization and integration of the complete reactive power compensation device are realized. The volume of the complete reactive power compensation device is reduced, and the material cost is reduced; the intelligent reactive power compensation device adopts an integrated power capacitor to improve the compensation precision of the complete reactive power compensation device and improve the market share. The proportion constant of active power in a power grid is increased, the design capacity of power generation and supply equipment is reduced, investment is reduced, the power factor is improved, and the line loss rate is reduced, so that the distribution proportion of the active power in the power grid is increased, the economic benefit of power supply enterprises is increased, and the intelligent reactive compensation cabinet is provided for the purpose.

SUMMERY OF THE UTILITY MODEL

The utility model provides an intelligence reactive compensation cabinet has solved traditional reactive compensation cabinet and can not reduce the power factor of power consumption enterprise, reduces reactive loss to and can not improve and simplify the device, reduce volume, reduce cost's problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an intelligent reactive compensation cabinet comprises a cabinet body, wherein the top of the cabinet body is fixedly connected with two hoisting mounting brackets, the front left side of the cabinet body is provided with an instrument door, the front right side of the cabinet body is provided with a wire inlet chamber instrument door, two sides of the cabinet body are fixedly connected with angle irons, two sides of the cabinet body are fixedly connected with a plurality of heat dissipation windows, the back of the cabinet body is connected with two back opening doors, the left side inside the cabinet body is provided with an electric accommodating chamber, the top of the electric accommodating chamber is fixedly connected with thirteen electric accommodating chamber mounting beams, the right side of the electric accommodating chamber is provided with a capacitance chamber and a metering chamber large partition plate which are fixedly connected with the bottom of the cabinet body, the right sides of the electric accommodating chamber and the metering chamber large partition plate are fixedly connected with a sheath, the right side of the electric accommodating chamber is provided with a wire outlet chamber, the interior of the outgoing line chamber is fixedly connected with three knock-off holes, the top of the outgoing line chamber is fixedly connected with three outgoing line chamber mounting beams, the front of the outgoing line chamber is fixedly connected with a second partition plate, the front of the second partition plate is provided with an incoming line chamber, the top of the incoming line chamber is fixedly connected with three incoming line chamber mounting beams, the interior of the incoming line chamber is fixedly connected with four incoming line chamber mutual inductor mounting beams, the interior of the cabinet body is fixedly connected with a reactive power compensation automatic controller, the interior of the reactive power compensation automatic controller is connected with a fuse type isolating switch, a measuring current mutual inductor is connected below the fuse type isolating switch, a third miniature circuit breaker is connected below the measuring current mutual inductor, a surge protector is connected below the third miniature circuit breaker, and a first residual action current circuit breaker is connected below the fuse type isolating switch, the utility model discloses a low-voltage power capacitor, including measurement current transformer, condenser protection main circuit breaker, first miniature circuit breaker, first combination switch, second low-voltage power capacitor, second miniature circuit breaker, second combination switch, second low-voltage power capacitor, second residual action current breaker, third residual action current breaker, measurement current transformer's below is connected with second residual action current breaker, measurement current transformer's below is connected with third residual action current breaker, measurement current transformer's below is connected with condenser protection main circuit breaker, condenser protection main circuit breaker's below is connected with first miniature circuit breaker, first miniature circuit breaker's below is connected with first combination switch, first combination switch's below is connected with first low-voltage power capacitor, condenser protection main circuit breaker's below is connected with the second miniature circuit breaker, second miniature circuit breaker's below is connected with the metal oxide arrester.

Preferably, a plurality of lead seals are arranged outside the inlet room instrument door.

Preferably, a plurality of heat dissipation holes are formed in two sides of the cabinet body, a plurality of first threaded holes are formed in the outer portions of the heat dissipation holes, a plurality of second threaded holes are formed in the outer portions of the heat dissipation windows, and bolts are sleeved on the inner threads of the first threaded holes and the inner threads of the second threaded holes.

Preferably, the outside fixedly connected with first in command of instrument door, the outside fixedly connected with second in command of inlet wire room instrument door, two second in command of outside fixedly connected with that the back opened the door.

Preferably, the both sides fixedly connected with of the cabinet body are a plurality of hinges, instrument door, inlet wire room instrument door and back are opened the door and are passed through hinge connection on the cabinet body.

Preferably, a plurality of nameplate mounting holes are formed in the outer portion of the wire inlet room instrument door.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an installation current transformer, fuse formula isolator, miniature circuit breaker, capacitor protection main circuit breaker, surplus action current breaker isotructure, wherein in case voltage is low excessively, fuse formula isolator closes, according to the size that shows the electric current on the measurement current transformer, then select different branch roads, and apply unnecessary electric current, store and release, guarantee to provide reactive power nearby to perceptual load equipment, the safe operation of guarantee electric wire netting, the utility model discloses, novel in design, moreover, the steam generator is simple in structure, increase the proportionality constant of active power in the electric wire netting, reduce and send out, power supply unit's design capacity, reduce the investment, improve power factor, reduce the line loss rate, thereby increase the distribution proportion of active power in the electric wire netting, increase the economic benefits of power supply enterprise.

Drawings

Fig. 1 is a schematic front view of an intelligent reactive power compensation cabinet according to the present invention;

fig. 2 is a schematic side view of an intelligent reactive power compensation cabinet according to the present invention;

fig. 3 is a schematic top view of the intelligent reactive power compensation cabinet of the present invention;

fig. 4 is a perspective view of a large partition plate between a capacitance chamber and a metering chamber of the intelligent reactive power compensation cabinet provided by the present invention;

fig. 5 is a system diagram of changing a 400kVA column of an intelligent reactive power compensation cabinet into a JP cabinet according to the present invention;

fig. 6 is a system diagram of changing a 200kVA column of an intelligent reactive power compensation cabinet into a JP cabinet according to the present invention;

fig. 7 is the utility model provides a low pressure JP cabinet distribution system schematic diagram of intelligence reactive compensation cabinet.

In the figure: 1 nameplate mounting hole, 2 protective sleeves, 3 electric accommodating chambers, 4 knock-off holes, 5 wire outlet boxes,

6 wire inlet chambers, 7 wire inlet chamber instrument doors, 8 second partition plates, 9 metering chambers, 10 electricity accommodating chambers and metering chamber large partition plates, 11 instrument doors, 12 capacitor chamber mounting beams, 13 wire outlet chamber mounting beams, 14 wire inlet chamber mutual inductor mounting beams, 15 wire inlet chamber mounting beams, 16 hoisting mounting brackets, 17 angle iron, 18 cabinet bodies, 19 metering chamber partition plates, 20 rear opening doors and 21 heat dissipation windows, 22 fuse type disconnecting switch, 23 second low-voltage power capacitor, 24 first low-voltage power capacitor, 25 second compound switch, 26 first compound switch, 27 metal oxide arrester, 28 second small breaker, 29 first small breaker, 30 capacitor protection main breaker, 31 second residual action current breaker, 32 third residual action current breaker, 33 first residual action current breaker, 34 third small breaker, 35 surge protector, 36 measurement current transformer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-7, an intelligent reactive compensation cabinet comprises a cabinet body 18, two hoisting mounting brackets 16 are fixedly connected to the top of the cabinet body 18, an instrument door 11 is mounted on the left side of the front of the cabinet body 18, a wire inlet chamber instrument door 7 is mounted on the right side of the front of the cabinet body 18, angle irons 17 are fixedly connected to two sides of the cabinet body 18, a plurality of heat dissipation windows 21 are fixedly connected to two sides of the cabinet body 18, two rear opening doors 20 are connected to the back of the cabinet body 18, an electric chamber 3 is arranged on the left side of the inside of the cabinet body 18, thirteen electric chamber mounting beams 12 are fixedly connected to the top of the electric chamber 3, a large partition plate 10 of a capacitor chamber and a large partition plate of a metering chamber fixedly connected to the bottom of the cabinet body 18 is arranged on the right side of the electric chamber and the large partition plate of the metering chamber 10, a sheath 2 is fixedly connected to the right side of the capacitor chamber 3, the inside of the wire outlet chamber 5 is fixedly connected with three knockout holes 4, the top of the wire outlet chamber 5 is fixedly connected with three wire outlet chamber mounting beams 13, the front of the wire outlet chamber 5 is fixedly connected with a second partition plate 8, the front of the second partition plate 8 is provided with a wire inlet chamber 6, the top of the wire inlet chamber 6 is fixedly connected with three wire inlet chamber mounting beams 15, the inside of the wire inlet chamber 6 is fixedly connected with four wire inlet chamber mutual inductor mounting beams 14, the inside of the cabinet body 18 is fixedly connected with a reactive power compensation automatic controller, the inside of the reactive power compensation automatic controller is connected with a fuse type isolating switch 22, a measuring current mutual inductor 36 is connected below the fuse type isolating switch 22, a third small circuit breaker 34 is connected below the measuring current mutual inductor 36, a surge protector 35 is connected below the third small circuit breaker 34, and a first residual action current breaker 33 is connected below the fuse type isolating switch 22, a second residual action current breaker 31 is connected below the measurement current transformer 36, a third residual action current breaker 32 is connected below the measurement current transformer 36, a capacitor protection main breaker 30 is connected below the measurement current transformer 36, a first miniature breaker 29 is connected below the capacitor protection main breaker 30, a first combination switch 26 is connected below the first miniature breaker 29, a first low-voltage power capacitor 24 is connected below the first combination switch 26, a second miniature breaker 28 is connected below the capacitor protection main breaker 30, a second combination switch 25 is connected below the second miniature breaker 28, a second low-voltage power capacitor 23 is connected below the second combination switch 25, and a metal oxide arrester 27 is connected below the capacitor protection main breaker 30.

In this embodiment, the exterior of the wire-inlet room instrument door 7 is provided with a plurality of lead seals.

In this embodiment, a plurality of louvres have been seted up to the both sides of the cabinet body 18, and a plurality of first screw holes have been seted up to the outside of louvre, and a plurality of second screw holes have been seted up to the outside of heat dissipation window 21, and the internal thread cover of first screw hole and second screw hole is equipped with the bolt.

In this embodiment, the first handle is fixedly connected to the outside of the instrument door 11, the second handle is fixedly connected to the outside of the meter door 7 in the incoming line room, and the two second handles are fixedly connected to the outside of the rear door 20.

In this embodiment, a plurality of hinges are fixedly connected to two sides of the cabinet body 18, and the instrument door 11, the wire inlet room instrument door 7 and the rear opening door 20 are connected to the cabinet body 18 through hinges.

In this embodiment, a plurality of nameplate mounting holes are formed outside the wire-inlet room instrument door 7.

The working principle is that firstly, when the voltage in the cabinet is too low, the fuse type disconnecting switch 22 is closed, the current reaches the measuring current transformer 36 through the circuit, then different branch circuits are selected according to the size of the reading displayed on the measuring current transformer 36, when the reading is higher, only the third small breaker 34 is closed, other circuits are closed, then the current reaches the surge protector 35 through the third small breaker 34, the left and right protection of the circuit is realized, when the reading of the measuring current transformer 36 is in the specified range, the second residual action current breaker 31, the third residual action current breaker 32 and the first residual action current breaker 33 are closed, other branch circuits are opened, the current respectively passes through the second residual action current breaker 31, the third residual action current breaker 32 and the first residual action current breaker 33, and then acts on corresponding positions, when the reading of the measuring current transformer 36 is lower than the specified range, the capacitor protection main circuit breaker 30 is closed, the other branches are opened, the current passes through the capacitor protection main circuit breaker 30 and then is divided into two paths, one path of current passes through the first small circuit breaker 29, then passes through the first combination switch 26 and finally enters the first low-voltage power capacitor 24, the other path of current passes through the second small circuit breaker 28, then passes through the second combination switch 25 and finally enters the second low-voltage power capacitor 23, and then the redundant current passes through the metal oxide lightning arrester 27, so that the risk of electric leakage is prevented.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The intelligent reactive compensation cabinet comprises a cabinet body (18) and is characterized in that the top of the cabinet body (18) is fixedly connected with two hoisting mounting brackets (16), an instrument door (11) is installed on the left side of the front of the cabinet body (18), an inlet wire chamber instrument door (7) is installed on the right side of the front of the cabinet body (18), angle irons (17) are fixedly connected to the two sides of the cabinet body (18), a plurality of heat dissipation windows (21) are fixedly connected to the two sides of the cabinet body (18), two rear opening doors (20) are connected to the back of the cabinet body (18), an electric accommodating chamber (3) is arranged on the left side of the inside of the cabinet body (18), thirteen electric accommodating chamber mounting beams (12) are fixedly connected to the top of the electric accommodating chamber (3), and an electric accommodating chamber and a large metering chamber partition plate (10) fixedly connected to the bottom of the cabinet body (, the electric cabinet is characterized in that a protective sleeve (2) is fixedly connected to the right side of an electric accommodating chamber and a large partition plate (10) of a metering chamber, a wire outlet chamber (5) and a metering chamber (9) are arranged on the right side of the electric accommodating chamber (3), a metering chamber partition plate (19) fixedly connected to the bottom of a cabinet body (18) is arranged between the wire outlet chamber (5) and the metering chamber (9), three knockout holes (4) are fixedly connected to the inside of the wire outlet chamber (5), three wire outlet chamber mounting beams (13) are fixedly connected to the top of the wire outlet chamber (5), a second partition plate (8) is fixedly connected to the front of the wire outlet chamber (5), a wire inlet chamber (6) is arranged on the front of the second partition plate (8), three wire inlet chamber mounting beams (15) are fixedly connected to the top of the wire inlet chamber (6), four wire inlet chamber mutual inductor mounting beams (14) are fixedly connected to the inside of the wire inlet chamber (6), and a reactive, the inside of the reactive power compensation automatic controller is connected with a fuse type isolating switch (22), a measuring current transformer (36) is connected below the fuse type isolating switch (22), a third small breaker (34) is connected below the measuring current transformer (36), a surge protector (35) is connected below the third small breaker (34), a first residual action current breaker (33) is connected below the fuse type isolating switch (22), a second residual action current breaker (31) is connected below the measuring current transformer (36), a third residual action current breaker (32) is connected below the measuring current transformer (36), a capacitor protection main breaker (30) is connected below the measuring current transformer (36), a first small breaker (29) is connected below the capacitor protection main breaker (30), the below of first miniature circuit breaker (29) is connected with first blend switch (26), the below of first blend switch (26) is connected with first low voltage power capacitor (24), the below of capacitor protection main breaker (30) is connected with second miniature circuit breaker (28), the below of second miniature circuit breaker (28) is connected with second blend switch (25), the below of second blend switch (25) is connected with second low voltage power capacitor (23), the below of capacitor protection main breaker (30) is connected with metal oxide arrester (27).

2. An intelligent reactive power compensation cabinet according to claim 1, wherein a plurality of lead seals are provided on the outside of the entrance room instrument door (7).

3. The intelligent reactive power compensation cabinet according to claim 1, wherein a plurality of heat dissipation holes are opened at two sides of the cabinet body (18), a plurality of first threaded holes are opened at the outer portions of the heat dissipation holes, a plurality of second threaded holes are opened at the outer portions of the heat dissipation windows (21), and bolts are sleeved at the inner threads of the first threaded holes and the second threaded holes.

4. An intelligent reactive power compensation cabinet according to claim 1, wherein a first handle is fixedly connected to the outside of the instrument door (11), a second handle is fixedly connected to the outside of the incoming room instrument door (7), and two second handles are fixedly connected to the outside of the rear door (20).

5. The intelligent reactive power compensation cabinet according to claim 1, wherein a plurality of hinges are fixedly connected to two sides of the cabinet body (18), and the instrument door (11), the inlet room instrument door (7) and the rear opening door (20) are connected to the cabinet body (18) through hinges.

6. The intelligent reactive power compensation cabinet according to claim 1, wherein a plurality of nameplate mounting holes are formed outside the wire-inlet room instrument door (7).