CN205231464U - Safety isolating transformer switch board - Google Patents

Abstract

The utility model discloses a safety isolating transformer switch board, including safety protection box, watt -hour meter numerical table, circuit fusing protector, second grade vary voltage room, one -level vary voltage room, distribution connection port, high -voltage line interface and louvre, the high -voltage line interface sets up in the left side bottom of safety protection box, and safety protection box inside correspond position department and be provided with one -level vary voltage room, second grade vary voltage room separates through insulating circuit isolation board with one -level vary voltage room completely, the setting of circuit fusing protector is at the top of second grade vary voltage room, the inside top at the safety protection box is installed to the watt -hour meter numerical table, distribution connection port sets up the place ahead at the watt -hour meter numerical table, the louvre sets up the left and right sides at the safety protection box. The utility model discloses the mode of processing that the secondary stepped down has reduced the operating pressure of transformer single treatment, and increase of service life improves work efficiency, the using widely on a large scale be convenient for.

Description

A kind of safety isolating transformer power distribution cabinet

Technical field

The utility model belongs to transformer technology field, is specifically related to a kind of safety isolating transformer power distribution cabinet.

Background technology

Isolating transformer belongs to safety power supply, be generally used for machine maintenance, maintenance use, rise protection, lightning protection, filter action.Usually the AC supply voltage single line that we use is connected with the earth, has the potential difference of 220V between another single line and the earth.People contacts and can produce electric shock.And the secondary of isolating transformer is not connected with the earth, between its any two lines and the earth, there is no potential difference.People contacts any line and can not get an electric shock, so just safer.Secondly also have the output of isolating transformer to be that " open circuit " is isolated completely with input, so just the effective input to transformer (supply voltage that electrical network supplies) serves the effect of a good filtration.Thus provide pure supply voltage to power consumption equipment.Another purposes is anti-tampering.The place such as power transmission and distribution in subway, skyscraper, airport, station, harbour, industrial and mining enterprises and tunnel can be widely used in.Isolating transformer refers to the transformer that input winding and output winding are isolated from each other on electrically, in order to avoid accidentally touching simultaneously electrified body (or metal parts that may be charged because of insulation damages) and the danger that brings, its principle is identical with common dry-type transformer, also be utilize electromagnetic induction principle, main isolation primary power source loop, secondary circuit is floating over the ground, to ensure Electrical Safety.

Look that isolating transformer is that Li Chu is extremely many, but in the use procedure of reality, larger volume and large power consumption, hinder it and develop use on a large scale, and transformation at that time isolates the daily electricity consumption for people, still need the distribution of power distribution cabinet, the miniature transformer of its inside still can not guarantee the fail safe of the daily electricity consumption of people; And transformer is vulnerable to the impact of external short circuit fault in running, meet accident accident, and in order to fundamentally guarantee the daily Electrical Safety of people, the solution of these problems is extremely urgent.

Utility model content

The purpose of this utility model is to provide a kind of safety isolating transformer power distribution cabinet, to solve the problem proposed in above-mentioned background technology.

For achieving the above object, the utility model provides following technical scheme: a kind of safety isolating transformer power distribution cabinet, comprise security protection casing, electric degree count table, circuit fuse protector, second high voltage input terminal, secondary transformation room, one-level transformation room, first high voltage input terminal, distribution connectivity port, security protection chamber door, second low-voltage output, first low-voltage output, high-tension bus-bar interface and louvre, described high-tension bus-bar interface is arranged on the left bottom of security protection casing, and the corresponding position, inside of security protection casing is provided with one-level transformation room, described first high voltage input terminal and the first low-voltage output are all arranged on the inside of one-level transformation room, and the first high voltage input terminal and the first low-voltage output are electrically connected, described secondary transformation room and one-level transformation room are separated completely by insulator chain division board, and the second high voltage input terminal and the second low-voltage output are all arranged on the inside of secondary transformation room, described second high voltage input terminal and the second low-voltage output are electrically connected, described circuit fuse protector is arranged on the top of secondary transformation room, and circuit fuse protector and the second low-voltage output are electrically connected, described electric degree count table is arranged on the inner tip of security protection casing, and electric degree count table and circuit fuse protector are electrically connected, described distribution connectivity port is arranged on the front of electric degree count table, described safety protective box door is by being hingedly connected at the front of security protection casing, and security protection chamber door is provided with chamber door insulation handle, described louvre is arranged on the left and right sides of security protection casing.

Preferably, described first high voltage input terminal and the first low-voltage output and all separated completely by insulation rotor group between the second high voltage input terminal and the second low-voltage output.

Preferably, described electric degree count table and distribution connectivity port are provided with at least five, and correspondingly between electric degree count table with distribution connectivity port are electrically connected.

Compared with prior art, the beneficial effects of the utility model are: this safety isolating transformer power distribution cabinet is scientific and reasonable for structure, safe and convenient to use, the completely isolated pattern of one-level transformation room and secondary transformation room takes full advantage of the advantage of isolating transformer, in the daily electric process of people, serve good protection, lightning protection, filter action, ensure that the daily Electrical Safety of people; The processing mode of secondary step-down, reduces the operating pressure of transformer single treatment, increases the service life, increase work efficiency, and is convenient to promote the use of on a large scale.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation;

Fig. 2 is left side structure schematic diagram of the present utility model.

In figure: 1, security protection casing, 2, electric degree count table, 3, circuit fuse protector; 4, the second high voltage input terminal, 5, secondary transformation room, 6, insulator chain division board; 7, one-level transformation room, the 8, first high voltage input terminal, 9, distribution connectivity port; 10, security protection chamber door, 11, chamber door insulation handle, the 12, second low-voltage output; 13, insulation rotor group; 14, the first low-voltage output, 15, high-tension bus-bar interface, 16, louvre.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.

Refer to Fig. 1-2, the utility model provides a kind of technical scheme: a kind of safety isolating transformer power distribution cabinet, comprise security protection casing 1, electric degree count table 2, circuit fuse protector 3, second high voltage input terminal 4, secondary transformation room 5, one-level transformation room 7, first high voltage input terminal 8, distribution connectivity port 9, security protection chamber door 10, second low-voltage output 12, first low-voltage output 14, high-tension bus-bar interface 15 and louvre 16, high-tension bus-bar interface 11 is arranged on the left bottom of security protection casing 1, and the corresponding position, inside of security protection casing 1 is provided with one-level transformation room 7, first high voltage input terminal 8 and the first low-voltage output 14 are all arranged on the inside of one-level transformation room 7, and the first high voltage input terminal 8 and the first low-voltage output 14 are electrically connected, secondary transformation room 5 and one-level transformation room 7 are separated completely by insulator chain division board 6, and the second high voltage input terminal 4 and the second low-voltage output 12 are all arranged on the inside of secondary transformation room 5, second high voltage input terminal 4 and the second low-voltage output 12 are electrically connected, circuit fuse protector 3 is arranged on the top of secondary transformation room 5, and circuit fuse protector 3 and the second low-voltage output 12 are electrically connected, first high voltage input terminal 8 and the first low-voltage output 14 and all separated completely by insulation rotor group 13 between the second high voltage input terminal 4 and the second low-voltage output 12, electric degree count table 2 is arranged on the inner tip of security protection casing 1, and electric degree count table 2 and circuit fuse protector 3 are electrically connected, distribution connectivity port 9 is arranged on the front of electric degree count table 2, electric degree count table 2 and distribution connectivity port 9 are provided with at least five, and correspondingly between electric degree count table 2 with distribution connectivity port 9 to be electrically connected, security protection chamber door 10 is connected through the hinge in the front of security protection casing 1, and security protection chamber door 10 is provided with chamber door insulation handle 11, louvre 16 is arranged on the left and right sides of security protection casing 1.

Operation principle: the utility model is safe and convenient to use, the extraneous high-tension bus-bar secure connection for transporting is at high-tension bus-bar interface 15, high-tension current enters one-level transformation room 7, under the first high voltage input terminal 8 and the first low-voltage output 14 electromagnetic induction effect, carry out primary pressure reduction, enter secondary transformation room 5 afterwards, under the electromagnetic induction effect of the second high voltage input terminal 4 and the second low-voltage output 12, carry out secondary pressure reduction, be electrically connected on electric degree count table 2 by circuit fuse protector 3 afterwards, connected by distribution connectivity port 9 and carry out distribution, for the daily electricity consumption of people, the processing mode of secondary step-down, reduce the operating pressure of transformer single treatment, increase the service life, increase work efficiency, be convenient to promote the use of on a large scale.

Although illustrate and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and spirit, scope of the present utility model is by claims and equivalents thereof.

Claims (3)

1. a safety isolating transformer power distribution cabinet, comprise security protection casing (1), electric degree count table (2), circuit fuse protector (3), second high voltage input terminal (4), secondary transformation room (5), one-level transformation room (7), first high voltage input terminal (8), distribution connectivity port (9), security protection chamber door (10), second low-voltage output (12), first low-voltage output (14), high-tension bus-bar interface (15) and louvre (16), it is characterized in that: described high-tension bus-bar interface (11) is arranged on the left bottom of security protection casing (1), and the corresponding position, inside of security protection casing (1) is provided with one-level transformation room (7), described first high voltage input terminal (8) and the first low-voltage output (14) are all arranged on the inside of one-level transformation room (7), and the first high voltage input terminal (8) and the first low-voltage output (14) are electrically connected, described secondary transformation room (5) and one-level transformation room (7) are separated completely by insulator chain division board (6), and the second high voltage input terminal (4) and the second low-voltage output (12) are all arranged on the inside of secondary transformation room (5), described second high voltage input terminal (4) and the second low-voltage output (12) are electrically connected, described circuit fuse protector (3) is arranged on the top of secondary transformation room (5), and circuit fuse protector (3) and the second low-voltage output (12) are electrically connected, described electric degree count table (2) is arranged on the inner tip of security protection casing (1), and electric degree count table (2) and circuit fuse protector (3) are electrically connected, described distribution connectivity port (9) is arranged on the front of electric degree count table (2), described security protection chamber door (10) is connected through the hinge in the front of security protection casing (1), and security protection chamber door (10) is provided with chamber door insulation handle (11), described louvre (16) is arranged on the left and right sides of security protection casing (1).

2. a kind of safety isolating transformer power distribution cabinet according to claim 1, is characterized in that: described first high voltage input terminal (8) and the first low-voltage output (14) and all separated completely by insulation rotor group (13) between the second high voltage input terminal (4) and the second low-voltage output (12).

3. a kind of safety isolating transformer power distribution cabinet according to claim 1, it is characterized in that: described electric degree count table (2) and distribution connectivity port (9) are provided with at least five, and correspondingly between electric degree count table (2) with distribution connectivity port (9) to be electrically connected.