CN2337699Y - Low-voltage movable switch cubicle - Google Patents

Abstract

The utility model relates to a low-voltage movable switch cabinet. The upper part of a cabinet body is provided with a top cover. The front part and the rear part of the cabinet body are provided with doors. The both sides of the cabinet body are provided with handles. The lower part of the cabinet body is provided with wheels. A plurality of cross beams and vertical beams are welded on a skeleton in the cabinet. A total switch, a knife switch, and a matching board are welded on the cross beams. An electromechanical valve is installed on the vertical beams. Electric equipment is installed on the electromechanical valve. The utility model can automatically compensate idle work and does metering to various electrical quantity. When humiture in the cabinet changes, the utility model can automatically adjust. When the electric equipment has the phenomena of electrical leakage, creepage, and interphase short circuit, a power source can be cut off in a short time, and operating personnel's life safety can be ensured. The low-voltage movable switch cabinet also has the advantages of safety, high level of protection, strong movement performance, damp proofing performance, small size, low cost, long service life, and simple operation.

Description

The portable switch cubicle of low pressure

The utility model relates to appliance field, it is the portable switch cubicle of a kind of low pressure, be applicable to construction operation place temporary electricity, electric operation control cubicle movably, also can be used for occasions such as various buildings, depot, harbour, highway and mining, also can replace fixed box-type substation.

At present, the fixed switch cubicle of installing in provisional wooden distribution box, block terminal or the interim power distribution station is mostly adopted in the electricity consumption in construction site and field work place, operation place complexity, environment badly, particularly rainwater weather or moist operation place; And the higher occasion of dust, electric leakage or creepage very easily takes place in power consumption equipment, often the generation personnel casualty accident of getting an electric shock.Far away and electric wire is aging, equipment uses in adverse circumstances for power delivery, will threaten operation place personnel's life security at any time.

The purpose of this utility model is: provide a kind of low pressure portable switch cubicle, not only mobility is strong for it, and also detection operating position ceaselessly has the characteristics safe and reliable, that degree of protection is high, avoids the generation of personnel casualty accidents effectively.

Task of the present utility model realizes in the following manner: cabinet is a closed metal structure, and the electric equipment that is disposed is installed on the cabinet interior crossbeam and electric door, and for ease of working service, the electric door that makes preparations for sowing in the cabinet all can be opened.After connecting power supply and outlet cable, promptly can control at front-operated.It not only to the electricity consumption situation can Automatic Detection and Control, metering, also can be according to the automatic compensating reactive power of electric energy.When in-cabinet temperature changed, temperature is work (or the cooling) drying of heating to controller, improved the insulation property of electric equipment.When power consumption equipment occurred leaking electricity or be creepage, corresponding outlet was leaked and is opened the detection action power dump.When overload or generation phase fault, corresponding leakage is started and is cut off the electricity supply, and ensures operating personnel's life security.

Fig. 1 is a shape assumption diagram of the present utility model

Fig. 2 is a front of the present utility model electric equipment installation diagram

Fig. 3 is a back side of the present utility model electric equipment installation diagram

Fig. 4 is an electric scheme typical figure of the present utility model

Further introduce implementation method below in conjunction with accompanying drawing of the present utility model:

Cabinet 2 forms closed, a metal cabinet movably by top cover 1, handle 7, door 5,11,47,61, channel-section steel 8, wheel 9.The top of cabinet 2 is welded with top cover 1, door 5,11,47,61 is equipped with in front and back, handle 7 is equipped with in both sides, the bottom is welded with the channel-section steel 8 of two supported weight, and the bottom surface of groove guiding principle 8 is welded with the axle 12 of four same wheel 9, and wheel 9 is enclosed within on the axle 12, top cover has suspension ring 10 for 14 4 jiaos, door 5,11,47,61 is to change 6,7 welding with identical door to locate with cabinet 2, and it changes 3 to the doorstep and is welded in 5,11,47,61 lockset 6 all is housed, and company's bolt 14 of lockset 6 may be stuck in the cabinet 2.Cabinet 2 inner frames weld with the angle steel assembly unit; shell body and door 5,11,47,61, electric door 18,19,28,37,45 and matching board 48,54,56 and crossbeam 24 and vertical beam 35 usefulness sheet metals are the assembly unit welding forming after cutting, roll over, dashing; face down bonding in cabinet 2 bottoms has a utmost point 13, is used for the portable switch cubicle of low pressure ground protection on the spot.

Fig. 2 and Fig. 3 open front and back cabinet electric equipment installation diagram behind the door.Dress is welded with the beam of many installation electric equipments on cabinet 2 inner frames, and crossbeam 24 and vertical beam 35 and cabinet 2 inner frames can weld fixing, also can use bolted.Always open 23 and cutter open 27,29 and matching board 48,54,56 dress be welded on the many crossbeams, and electric door 18,19,28,37,45 is installed on the many crossbeams, it is to change 58,59 welding location with identical door that electric door 18,19,28,37,45 is installed, it changes 58 sides that are welded in electric door 18,19,28,37,45 to the doorstep, the Xiamen is changeed 59 and is welded on the face of vertical beam 35, and electric door 18,19,28,37 is closed the back and is tightened on the vertical beam 35 with identical bolt 38.Open door 5, cabinet 2 internal upper parts are equipped with electric door 18, a clear glass 17 is housed on the electric door 18, can be observed electric energy meter 15,16, electric energy meter 15 is directly joined table for the illumination electric weight, electric energy meter 16 is meritorious and the total no-load voltage ratio table of capacity of idle power, electric energy meter 15,16 is installed in the back side of matching board 56, can operate below electric door 18 always to open on 23 the electric door 19 that a bank light group table 20 being installed, lamp button table 20 be with the horizontal numberization element of DIV track-type, they are respectively red green indicator light, red green button, current voltmeter and overvoltage lightning arrester and emergency light.Instrument transformer 25 is installed on cabinet 2 inner bottom platings, measures usefulness as always opening 23 load currents, increases an instrument transformer at A on mutually, is that 90 ° of wiring of reactive power compensator are measured and used.On the instrument transformer 25 and install one on the crossbeam 24 between the electric door 19 times and always open 23, always open 23 and have short circuit, no-voltage trip device, when always opening 23 and when issuing between looks short circuit, general supplies are cut off in the protective devices action of always opening in 23.The top of opening in door 11, the cabinet 2 is equipped with electric door 28, one bank light 26, Zhong Men position are installed on the top of electric door 28 have two cuttves and open 27,29 and be installed on the crossbeam 24, electric door 37 tops one row below electric door 28 be separately installed with controller 31 and control open 32 and the position of thermostat 33, middle part and bottom on be equipped with and Lou open 34,36.Open door 47, on the vertical beam 35 in the cabinet 2 electric door 45 is installed, electric door 45 is two joint open type doors, open this open type electric door 45 again, arrangement is equipped with instrument transformer 39 from last to middle, line bank 40, molten guarantor 41 and execution 42 and heat protect 43, for ease of compensator 44 is installed, two carriages 46 are welded in the middle part and the bottom of electric door 45 respectively, compensator 44 is installed on the carriage 46, interlayer matching board 48 between in electric door 45 and electric door 37, be separately installed with bus-bar 49 on 52, terminal 51, clamp 50 and temperature control head 53, bus-bar 49 adopts the insulator bolted with matching board 48, terminal 51 is installed on the epoxy matching board 52 of insulation, the back side at matching board 54 also is equipped with instrument transformer 62, and the following pile crown of current transformer 57 is connected with the last pile crown of always opening 23.Have cable outlet hole 55 and long cable section of ingoing line hole 60 on the base plate of cabinet 2, be the punch die preformed hole, the time spent opens, and the time spent does not adopt the fire prevention clay to block up.

Fig. 4 is an electric scheme typical figure.Always opening 23 is to use the AH Series Circuit Breakers, its breaking capacity is strong, the spray arc distance is opened 34,36 gas S series RC type residual current circuit breaker from weak point, leakage, lamp button table 20 and lamp table 30 and lamp 26 are with DIN track-type modularization element, and cutter leaves the 27, the 29th, adopts OETL series load-break switch, they are electric products that breaking capacity is strong, degree of protection is high, volume is little, and compensation arrangement adopts import production domesticization series of products to combine.Except that become layer device 57 with always open 23 be with aluminium row or copper bar is hard be connected, its always open 23 with cutter open 27,29 and electric energy meter 15, cutter to open 27,29 all be to be flexible coupling after adopting the copper whip to put heat-shrink tube with bus-bar 49 and line bank 40, and other to be electrically connected be to adopt the multiply steel to mould the line connection.

The portable switch cubicle of this low pressure is dried through Water Treatment after blank is finished in metalwork processing assembly unit welding, coats several layers high-temperature resistant anti-corrosive solvent again through hyperthermia drying, assembles electric equipment, wiring, formation product then.Top cover 1 has an insulating layer, close door 5,11,47,61 after, to the variation of humiture, the pouring of rainwater is soaked, the electric equipment in the cabinet can not be affected.When electric leakage or creepage and phase fault appearred in outlet equipment, corresponding outlet was leaked and is opened energy at extremely short time internal cutting off power supply.When the equipment operation temperature in the cabinet raises or humidity when increasing, the thermostat 33 starting temperature control head 53 of working is automatically regulated.When reactive loss, controller 31 testings can compensate device 44 switchings circulation compensation automatically.It can also be to meritorious, idle, power electric weight, illumination electric quantity metering.

The on-the-spot use of this low-voltage movable switch cubicle is very simple, as required can be any Stay in ground (slope is not more than 15 °), squeeze on the spot at the bottom of a ground stud and the cabinet earlier The utmost point 13 links to each other and connects, and the outlet cable or wire of need usefulness is introduced in the cabinet inserted terminal 51 also Fix with clamp 50, receive again the upper stake of current transformer 57 from the distribution transformer lead-in cable Head also fixes, and can send electricity operation operation. This movable switch cubicle has safety can By, degree of protection height, mobility is strong, moistureproof, volume is little, cost is low, the life-span is long, Use simple characteristics.

Claims (3)

1, the portable switch cubicle of a kind of low pressure, it is characterized in that: have on the cabinet 2 top cover 1, both sides be equipped with handle 7, front and back have door 5,11,47,61, bottom be equipped with wheel 9, cabinet 2 always open 23 and cutter open 27,29 and matching board 48,52,54,56 dress be welded on the many crossbeams 26, electric door 18,19,28,37,45 is installed on the many vertical beams 35, is separately installed with lamp group 20, lamp 26 and lamp table 30, controller 31 and leakage on the electric door 19,28,37,45 and opens 34,36 and compensator 44.

2, the portable switch cubicle of low pressure according to claim 1, it is characterized in that opening the door 5, electric energy meter 15 in the electric door 18,16 are installed in the back side of matching board 56, one bank light group table 20 is installed on the following exercisable electric door 19 of electric door 18, instrument transformer 25 is installed on cabinet 2 inner bottom platings, on the crossbeam on the instrument transformer 25 and between the electric door 19 24, install one and always open 23, open door 11, the top of electric door 28 is equipped with a bank light 26, the middle part has two cuttves and opens 27,29 hole, the bottom is equipped with a bank light table 30, open electric door 28, cutter leaves 27,29 are installed on the crossbeam 24, electric door 37 tops one row below electric door 28 is separately installed with controller 31 and control and opens 32 and thermostat 33, is equipped with on the position of middle part and bottom and Lou opens 34,36.Open door 47, open electric door 45 again, from last to middle arrangement be equipped with instrument transformer 39, line bank 40, molten protect 41 and carry out 42 and heat protect 43, carriage 46 is welded in the middle part and the bottom of electric door 45, compensator 44 is installed on the carriage 46.Be separately installed with bus-bar 49, terminal 51, clamp 50 and temperature control head 53 on the matching board 48,52,54 in electric door 45.The bottom of opening door 61, matching board 56 is equipped with current transformer 57, and the following pile crown of current transformer 57 is connected with the last pile crown of always opening 23.

3, the portable switch cubicle of low pressure according to claim 1; it is characterized in that: cabinet 2 inner frames weld with the angle steel assembly unit; shell and door 57,11,47,61; electric door 18,19,28,37,45 and matching board 48,54,56 and crossbeam 24 and vertical beam 35 are to use the assembly unit welding forming; always opening 23 is to use the AH Series Circuit Breakers; 34,36 usefulness S series RC type earth leakage circuit breaker is opened in leakage; lamp button table 20 and lamp table 30 and lamp 26 are with DIN track-type transverse mode composition element, and cutter leaves the 27, the 29th, adopts OETL series load-break switch.Remove change source device 57 and always open 23 usefulness aluminium row formula steel row and is connected firmly, always open 23 with cutter open 27,29 and electric energy meter 15, cutter open 27,29 and bus-bar 49 and line bank 40 employing copper whips be flexible coupling, other is electrically connected employing multiply steel and moulds the line connection.

Images