CN109861090A - Eliminate the compartment power distribution cabinet of electromagnetism mutual interference - Google Patents

Abstract

The invention belongs to controller switching equipment fields, specifically disclose it is a kind of eliminate electromagnetism mutual interference compartment power distribution cabinet comprising tank bracket and be arranged in the tank bracket by metal partion (metp) surround in the cable compartment of closed state, busbar compartment, breaker compartment, voltage transformer compartment and control compartment.The metal partion (metp) of each compartment is prepared by un-conducted magnetic material.Breaker compartment configures the 1st handcart, breaker, inlet wire contact box and outlet contact box.2nd handcart, voltage transformer and survey pressure contact box built in voltage transformer compartment.Compartment built-in controller is controlled, controller is electrically connected with breaker, current transformer, voltage transformer.Bus, current transformer, breaker, voltage transformer, controller are separately positioned in different compartments by the present invention, the electromagnetic radiation between adjacent compartments is isolated in metal partion (metp), realize electromagnetic isolation, the electromagnetism in power distribution cabinet between each component is avoided to interfere with each other, ensure that power distribution cabinet runs well, the advantageous stability for improving power distribution cabinet.

Description

Eliminate the compartment power distribution cabinet of electromagnetism mutual interference

Technical field

The present invention relates to a kind of power distribution cabinet more particularly to a kind of compartment power distribution cabinets for eliminating electromagnetism mutual interference, belong to distribution and set Standby field.

Background technique

Power distribution cabinet is widely used in the industries such as power plant, petroleum, chemical industry, metallurgy, weaving, skyscraper, as transmission of electricity, Distribution and electric energy conversion are used.Power distribution cabinet is built-in with first device such as bus, current transformer, voltage transformer, breaker, controller Part.Various components are arranged in a cabinet in power distribution cabinet, in application process, as bus current mutation, breaker close A large amount of electromagnetic radiation is generated when lock and separating brake, so that mutual electromagnetic is interfered between each component, influences the stabilization of each component Operation and the acquisition of sensor signal, electromagnetism interferes with each other also results in controller exception sometimes, influences the normal of power distribution cabinet Work, leads to major accident, influences electric power netting safe running.

Summary of the invention

The main purpose of the present invention is to provide a kind of compartment power distribution cabinets for eliminating electromagnetism mutual interference, are matched with solving the prior art The technical issues of mutual electromagnetic is interfered between each component of electric cabinet, it is by the way that multiple compartments are arranged in power distribution cabinet, bus, electric current is mutual Sensor, breaker, voltage transformer, controller are separately positioned on different compartments, realize electromagnetic isolation, avoid each member in power distribution cabinet Mutual electromagnetic is interfered between device, it is ensured that power distribution cabinet runs well, and improves the safety of power distribution cabinet.

In order to achieve the above object, the present invention provides a kind of compartment power distribution cabinet for eliminating electromagnetism mutual interference, including tank bracket, sets Meter is characterized by: further including the built-in current mutual inductor 11 in closed state being made of metal partion (metp) for being fixed on the tank bracket Cable compartment 10, the busbar compartment 20 of built-in bus bar copper bar 21, breaker compartment 30, voltage transformer compartment 40 and control compartment 50, the rear avris of tank bracket is arranged in the cable compartment 10, busbar compartment 20, and cable compartment 10 is located under busbar compartment 20 Side；The breaker compartment 30, voltage transformer compartment 40, control compartment 50 are arranged on the preceding avris of tank bracket, breaker every Room 30 is adjacent with busbar compartment 20 and is arranged on the front of busbar compartment 20, and voltage transformer compartment 40 is arranged on open circuit 30 lower section of device compartment, control compartment 50 are arranged above breaker compartment 30；The 1st handcart 31 of the configuration of breaker compartment 30, Breaker 32, inlet wire contact box 33 and outlet contact box 34；33 one end of inlet wire contact box through breaker compartment 30 and bus every Metal partion (metp) and fixation between room 20,34 one end of outlet contact box through between breaker compartment 30 and cable compartment 10 metal every Plate and fixation；21 one end of bus bar copper row is electrically connected with inlet wire contact box 33, and the other end is suitable for and protrudes into busbar compartment 20 The electrical connection of main bus-bar copper bar；The inlet wire terminals of current transformer 11 are electrically connected with outlet contact box 34, and outlet terminals are suitable for It is electrically connected with the outlet cable 16 protruded into cable compartment 10；1st handcart 31 is assembled by the 1st guide rail and breaker compartment 30, Breaker 32 is fixed on the 1st handcart 31, the inlet wire contact of breaker 32, outlet contact successively with inlet wire contact box 33, outlet Contact box 34 is adapted；2nd handcart 41, voltage transformer 42 and survey pressure contact box 43 built in voltage transformer compartment 40；Survey pressure 43 one end of contact box through between voltage transformer compartment 40 and cable compartment 10 metal partion (metp) and fixation, survey pressure contact box 43 with The outlet terminals of current transformer 11 are electrically connected；2nd handcart 41 is mutually assembled by the 2nd guide rail with voltage transformer compartment, electricity Pressure mutual inductor 42 is fixed on the 2nd handcart 41, and the contact of voltage transformer 42 is adapted with pressure contact box 43 is surveyed；It is described control every 50 built-in controller 51 of room, controller 51 are electrically connected with breaker 32, current transformer 11, voltage transformer 42.

During application implementation, there are also following optional technical solutions by the present invention.

Optionally, the also built-in grounding switch 12 of the cable compartment 10 and arrester 13；The wiring of grounding switch 12 End is electrically connected with the outlet terminals of current transformer 11；The terminals of the terminals and grounding switch 12 of arrester 13 are electrically connected It connects, another terminals are electrically connected with the earthing bar that 10 bottom of cable compartment is arranged in.

Optionally, zero sequence current mutual inductor 14 is also configured in the cable compartment 10, zero sequence current mutual inductor 14 is suitable In the outside for being sleeved on outlet cable 16；Zero sequence current mutual inductor 14 is fixed by bracket and cable compartment 10, and and controller 51 electrical connections.

Optionally, also it is configured high voltage isolator in the busbar compartment 10, the inlet wire of the high voltage isolator Terminals are suitable for and the electrical connection of main bus-bar copper bar, the one end electrical connection of outlet terminals and bus bar copper row 21, bus bar copper row 21 The other end be electrically connected with inlet wire contact box 33.

Optionally, further include the 1st temperature sensor and the 2nd temperature sensor, the 1st temperature sensor be adapted to detect for into 33 temperature of line contact box, the 2nd temperature sensor are adapted to detect for 34 temperature of outlet contact box, the 1st temperature sensor, the 2nd temperature Sensor is spent to be electrically connected with controller 51 respectively.

Optionally, the 1st driving mechanism is also assembled in the breaker compartment 30, the 1st driving mechanism is suitable for driving Dynamic 1st handcart 31 is moved back and forth along the 1st guide rail, for breaker in " working position " and " test position " switching.

Optionally, the 2nd driving mechanism is also set in the voltage transformer compartment 40, the 2nd driving mechanism is suitable In driving the 2nd handcart 41 to move back and forth along the 2nd guide rail, for voltage transformer in " working position " and " test position " switching.

Optionally, 32 internally provided with vacuum of the breaker bubble and close/open machine, the close/open machine is at least by resistance bullet Device 100, electromagnetic driver 323 and insulating cylinder 322 are constituted, the resistance ereisma 100, electromagnetic driver 323, insulating cylinder 322 and very Successively axial restraint connects vacuole 321.

Optionally, the resistance ereisma 100 includes cylinder body 110, piston mechanism 120, drainage mechanism 130, counterseal mechanism 140 and drain hole 150；The cylinder body 110 includes cylinder barrel 111, the 1st end cap 112 and the 2nd end cap 113 of sealing assembly；The work Fill in the piston rod that mechanism 120 includes the piston 121 being arranged in cylinder body 110, the 1st end cap 112 and the fixation of piston 121 are run through in one end 122, damping hole 123 is set on piston 121；The drain hole 150 includes the 1st drain hole being arranged in the 1st end cap 112 151, the 2nd drain hole 152 and the 3rd drain hole 153 in 111 wall of cylinder barrel are set；The drainage mechanism 130 includes setting the The drainage feeler lever 1311 of drainage lumens 132 and drainage spool 131 in 1 end cap 112, drainage spool 131 runs through 112 lower end of the 1st end cap Rod chamber is protruded into face, is suitable for piston slap drainage feeler lever and triggers 130 drainage of drainage mechanism；The counterseal mechanism 140 includes setting In the choked flow chamber 141, counterseal spool 143, the 2nd reset spring 144 and the plug 145 that radially extend in the 1st end cap 112, resistance Valve core case 142 is set in the end that stream chamber 141 is located inside, and the valve seat of connection choked flow chamber 141 is set in the middle part of valve core case 142 Hole, the counterseal spool 143, the 2nd reset spring 144 are assemblied in choked flow chamber 141, and plug 145 and choked flow chamber 142 are located at outside End fix, the 2nd reset spring 144 is in compressive state, and counterseal spool 143 and the sealing cooperation of valve core case 142 are suitable for preventing Flow through the resisting medium opposite direction flowing of drainage lumens 132；The drainage lumens 132, the 1st drain hole 151, valve core case 142 valve seat Hole, choked flow chamber 141, the 2nd drain hole 152, the 3rd drain hole 153, cylinder body 110 rodless cavity be sequentially communicated.

Optionally, the drainage mechanism 130 includes being arranged on the 1st end cap 112 along the top that its axis direction extends Drainage lumens 132, drainage spool 131, the 1st reset spring 135 and the end plate 133 of end opening；Drainage lumens 132, which are located at cylinder body 110, to be had Drainage valve seat 134 is set in the end of rod cavity side, is set on drainage valve seat 134 and runs through rod chamber along what its axis direction extended Through-hole；The drainage spool 131, the 1st reset spring 135 are assemblied in drainage lumens 132, end plate 133 and drainage lumens 132 it is another One end sealing is fixed, and the 1st reset spring is in compressive state, and drainage valve seat 134 and the sealing of drainage spool 131 cooperate；It is described The drainage feeler lever 1311 of drainage spool 131 protrudes from the end face of the 1st end cap 112 and extend into rod chamber.

The compartment power distribution cabinet of elimination electromagnetism mutual interference of the invention include tank bracket and be fixed on the tank bracket by metal partion (metp) structure At in the cable compartment of built-in current mutual inductor of closed state, the busbar compartment of built-in bus bar copper bar, breaker compartment, electricity Press mutual inductor compartment and control compartment.The rear avris of tank bracket is arranged in the cable compartment, busbar compartment, and cable compartment is located at mother The lower section of line compartment.Breaker compartment, voltage transformer compartment, control compartment are arranged on the preceding avris of tank bracket, breaker every Room is adjacent with busbar compartment and is arranged on the front of busbar compartment, and voltage transformer compartment is arranged under breaker compartment Side, control compartment are arranged above breaker compartment.Breaker compartment configures the 1st handcart, breaker, inlet wire contact box and outlet Contact box.Inlet wire contact box one end is through the metal partion (metp) between breaker compartment and busbar compartment and fixation, outlet contact box one End is through the metal partion (metp) between breaker compartment and cable compartment and fixation.Bus bar copper row one end is electrically connected with inlet wire contact box It connects, the other end is suitable for and protrudes into the electrical connection of the main bus-bar copper bar in busbar compartment；The inlet wire terminals of current transformer and outlet Contact box electrical connection, outlet terminals are suitable for and protrude into the electrical connection of the outlet cable in cable compartment.1st handcart is led by the 1st Rail and breaker compartment assemble, and breaker is fixed on the 1st handcart, the inlet wire contact of breaker, outlet contact successively with inlet wire Contact box, outlet contact box are adapted.2nd handcart, voltage transformer and survey pressure contact box built in voltage transformer compartment.Survey pressure Pressure contact box and Current Mutual Inductance are surveyed through the metal partion (metp) between voltage transformer compartment and cable compartment and fixation in contact box one end The outlet terminals of device are electrically connected.2nd handcart is mutually assembled by the 2nd guide rail with voltage transformer compartment, and voltage transformer is fixed On the 2nd handcart, the contact of voltage transformer is adapted with pressure contact box is surveyed.Control compartment built-in controller, controller and disconnected Road device, current transformer, voltage transformer are electrically connected.

Compared with prior art, the invention has the benefit that power distribution cabinet in setting it is multiple be made of metal partion (metp) every Bus, current transformer, breaker, voltage transformer, controller are separately positioned in different compartments by room, metal partion (metp) every From the electromagnetic radiation between adjacent compartments, realizes electromagnetic isolation, the mutual electromagnetic in power distribution cabinet between each component is avoided to interfere, it is ensured that Power distribution cabinet runs well, and improves the safety of power distribution cabinet.

Detailed description of the invention

In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for For those of ordinary skill in the art, without any creative labor, it can also be obtained according to these attached drawings His attached drawing.

Fig. 1 is the schematic diagram of one of embodiment compartment power distribution cabinet.

Fig. 2 is the structural schematic diagram of breaker.

Fig. 3 is the structural schematic diagram for hindering ereisma.

Fig. 4 is the enlarged diagram in the region AA in Fig. 3.

Wherein, 10- cable compartment, 11- current transformer, 12- grounding switch, 13- arrester, 14- zero sequence current mutual inductance Device, 15- copper busbar, 16- outlet cable, 20- busbar compartment, 21- bus bar copper row, 22- insulating sleeve, 23- main bus-bar copper bar, 30- breaker compartment, the 1st handcart of 31-, 32- breaker, 321- vacuum bubbles, 322- insulating cylinder, 323- electromagnetic driver, 33- into Line contact box, 34- outlet contact box, 40- voltage transformer compartment, the 2nd handcart of 41-, 42- voltage transformer, 43- survey pressure contact Box, 50- control compartment, 51- controller, 52- touch screen, 53- connecting terminal block, 100- resistance ereisma, 110- cylinder body, 111- cylinder Cylinder, the 1st end cap of 112-, the 2nd end cap of 113-, 114- axis pressing sleeve, the 1st sealing ring of 115-, the 2nd sealing ring of 116-, 120- piston machine Structure, 121- piston, 122- piston rod, 123- damping hole, the 3rd sealing ring of 124-, 125 1 the 4th sealing rings, 130- drainage mechanism, 131- drainage spool, 1311- drainage feeler lever, 1312- spool portion, 132- drainage lumens, 133- end plate, 134- drainage valve seat, 135- 1st reset spring, 140- counterseal mechanism, 141- choked flow chamber, 142- valve core case, 143- counterseal spool, the 2nd reset spring of 144-, 145- plug.

Specific embodiment

Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall in the protection scope of this application.Related directionality instruction in the embodiment of the present invention (such as upper and lower, left and right, It is forward and backward etc.) it is only used for the relative positional relationship explained under a certain particular pose (as shown in the picture) between each component, movement feelings Condition etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.

As stated in the background art, power distribution cabinet is built-in with bus, current transformer, voltage transformer, breaker, controller etc. Aforementioned various components are arranged in a cabinet for component, the power distribution cabinet of the prior art, and each other without electromagnetic isolation, In application process, as generated a large amount of electromagnetic radiation when bus current mutation, breaker closing and separating brake, so that each component Between mutual electromagnetic interfere, the stable operation of each component and the acquisition of sensor signal are influenced, prevent power distribution cabinet is from stablizing And it reliably runs.In addition, electromagnetic radiation also results in controller exception, the normal work of power distribution cabinet is influenced, great thing is led to Therefore influence electric power netting safe running.

Inventor proposes a kind of compartment power distribution cabinet that elimination electromagnetism interferes with each other after various experimental studies, should Multiple compartments surrounded by metal partion (metp) built in power distribution cabinet, by bus, current transformer, breaker, voltage transformer, controller It is separately positioned in different compartments, the electromagnetic radiation between adjacent compartments is isolated in metal partion (metp), realizes electromagnetic isolation, avoids power distribution cabinet Mutual electromagnetic interference between interior each component, it is ensured that power distribution cabinet runs well, and improves the safety of power distribution cabinet.Electromagnetism interferes with each other Abbreviation electromagnetism mutual interference.

As one embodiment of the present invention, the compartment power distribution cabinet of above-mentioned elimination electromagnetism mutual interference, as shown in Figure 1, packet The tank bracket of structural support effect is included, tank bracket prepared by steel sectional material, and is set to being made of metal partion (metp) for the tank bracket In the cable compartment 10 of closed state, busbar compartment 20, breaker compartment 30, voltage transformer compartment 40 and control compartment 50. Cable compartment 10, busbar compartment 20 are arranged on the rear avris of tank bracket, and cable compartment 10 is located at the lower side of busbar compartment 20；Electricity Shared between cable compartment 10 and the adjacent side of busbar compartment 20 metal partion (metp) (it may be one piece, it is also possible to muti-piece, under Together), it is identified as the 1st partition.The breaker compartment 30, voltage transformer compartment 40, control compartment 50 are arranged on tank bracket Preceding avris.Breaker compartment 30 is located at the front of busbar compartment 20, cable compartment 10；Breaker compartment 30 and busbar compartment 20 Metal partion (metp) adjacent, that breaker compartment 30 is shared with the adjacent side of busbar compartment 20, is identified as the 2nd partition；It is disconnected The shared metal partion (metp) in the adjacent side in the upper end of road device compartment 30 and cable compartment 10, is identified as the 3rd partition.Control Compartment 50 is located at the top of breaker compartment 30.Voltage transformer compartment 40 is arranged on the lower section of breaker compartment 30, with electricity Cable compartment 10 is adjacent, positioned at the front of cable compartment 10.Voltage transformer compartment 40 and the adjacent side of cable compartment 10 are total With one piece of metal partion (metp), it is identified as the 4th partition.Above-mentioned tank bracket is the frame made of steel sectional material, is such as welded by angle steel Manufacture plays structural support effect, for the load-bearing basis that power distribution cabinet is isolated.Left and right two avris of tank bracket fixes left side metal respectively Plate and right side metal plate；The fixed cabinet top metal plate in the top of tank bracket, the fixed bottom of cabinet metal plate in bottom end；Cabinet before avris assembles before tank bracket Door, the front cabinet door include control compartment cabinet door, breaker compartment cabinet door and voltage transformer compartment cabinet door；Avris is arranged after tank bracket Cable compartment cabinet door, to form the inner space of power distribution cabinet.Metal partion (metp) is used to divide the inner space of power distribution cabinet, is arranged on The inside of above-mentioned power distribution cabinet, and it is fixed, the space inside power distribution cabinet is successively divided into above-mentioned each compartment.Constitute power distribution cabinet The metal partion (metp) of each compartment, especially left side metal plate, right side metal plate, the 1st partition, the 2nd partition, the 3rd partition, the 4th partition, The metal partion (metp) of non-magnet material preparation, such as aluminium sheet, 200 stainless steel plates are selected, to further increase the electromagnetism between each compartment Isolation effect.

The cavity structure in closed state that cable compartment 10 is surrounded by muti-piece metal partion (metp), the metal partion (metp) and tank bracket are solid It is fixed, the space in closed state surrounded；The cavity structure in closed state that busbar compartment 20 is surrounded by muti-piece metal plate, should Metal partion (metp) and tank bracket are fixed, the space in closed state surrounded.Above-mentioned closed state is suitable for can physically have It is connected to the through-hole of adjacent compartments, referring on electromagnetic structure should not leak out every indoor electromagnetic wave, realize nothing between adjacent compartments Electromagnetic interference influence, to improve the robustness of power distribution cabinet.After the cable compartment 10, busbar compartment 20 are arranged on power distribution cabinet (side that the side with operation panel, i.e. user's operation power distribution cabinet are faced is the preceding avris of power distribution cabinet, referring to figure to avris 1, it is left view, the left side side of Fig. 1 is the rear avris of power distribution cabinet, and the right side is the preceding avris of power distribution cabinet, i.e. operation panel institute In side), cable compartment 10 is located at the lower side of busbar compartment 20；It can be regarded as cable compartment 10, busbar compartment 20 is arranged in cabinet The rear avris of frame, busbar compartment 20 are arranged on the upper side of cable compartment 10.What breaker compartment 30 was surrounded by metal partion (metp) In the cavity structure of closed state, the metal partion (metp) and tank bracket are fixed, the space in closed state surrounded；Voltage transformer every The cavity structure in closed state that room 40 is surrounded by metal partion (metp), the metal partion (metp) and tank bracket are fixed, and what is surrounded is in closed The space of state；The cavity structure in closed state that control compartment 50 is surrounded by metal partion (metp), the metal partion (metp) and tank bracket are fixed, The space in closed state surrounded；Above-mentioned closed state can physically have the through-hole for being suitable for being connected to adjacent compartments, Referring on electromagnetic structure should not leak out every indoor electromagnetic wave, without electromagnetic interference influence between realization adjacent compartments.It is described disconnected The preceding avris of power distribution cabinet tank bracket is arranged in road device compartment 30, voltage transformer compartment 40, control compartment 50, and breaker compartment 30 is set Set in the front of busbar compartment 20, cable compartment 10, positioned at the middle part of tank bracket, and respectively with busbar compartment 20, cable compartment 10 Upper end it is adjacent.It is in corresponding height level with busbar compartment 20 relative to tank bracket breaker compartment 30, so that two Person is adapted.Voltage transformer compartment 40 is arranged below breaker compartment 30, and control compartment 50 is arranged in breaker compartment 30 Top, the top of avris before tank bracket, in order to which user checks the operating parameter and operation power distribution cabinet movement of compartment power distribution cabinet, Such as carry out closing by hand, separating brake operation.For the ease of the connection between adjacent compartment, through walls lead to is provided on the 2nd partition Hole is adapted to fit into line contact box 33；It is provided with through-hole through walls on 3rd partition, is suitable for assembly outlet contact box 34；4th every It is provided with through-hole through walls on plate, is suitable for assembly and surveys pressure contact box 43.

Wherein, busbar compartment 20, as shown in Figure 1, being built-in with bus bar copper row 21, insulating sleeve 22 and protruding into busbar compartment Main bus-bar copper bar 23 in 20.Main bus-bar copper bar 23 is the work-yard being arranged in for conveying the transmission of electricity component of electric energy, main Bus bar copper row is three, corresponding with the three-phase three-wire system of power Transmission, is respectively used to the three-phase electric energy conveying outside power distribution cabinet Into power distribution cabinet, the electric energy of step down side is such as introduced into power distribution cabinet.It is rectangular that main bus-bar copper bar 23, which selects its cross section, The ribbon copper busbar of shape, busbar compartment 20 are suitable for that corresponding be rectangle is arranged on main bus-bar copper bar perforative metal partion (metp) Wall-through hole, rectangular wall-through hole favorably enhance the effectiveness of metal partion (metp), the metal of above-mentioned setting wall-through hole every Plate is known as wall-penetrating partition board.Main bus-bar copper bar 23 is extend into busbar compartment 20 through wall-through hole.Main bus-bar copper bar 23 and wall-penetrating partition board Between insulating sleeve 22 is set, which protrudes from the two sides of the wall-penetrating partition board, increases insulation creep distance, improves electrical isolation Property, main bus-bar copper bar 23 is isolated with electrical isolation between wall-penetrating partition board, i.e., is isolated with power distribution cabinet electrical isolation.Inlet wire contact box 33 runs through Metal partion (metp) between busbar compartment 20 and breaker compartment 30 runs through the 2nd partition, extend into busbar compartment 20, and and cabinet Frame is fixed；Insulating sleeve is set between inlet wire contact box 33 and the corresponding through-hole of the 2nd partition, the insulating sleeve protrude from the 2nd every Electrical insulating property is improved, so that inlet wire contact box 33 is electrically insulated with the 2nd partition room and is isolated for increasing insulation creep distance in the two sides of plate； Outlet contact box 34 runs through the 3rd partition, extend into cable through the metal partion (metp) between cable compartment 10 and breaker compartment 30 In compartment 10, and fixed with tank bracket；Insulating sleeve is set between outlet contact box 34 and the corresponding through-hole of the 3rd partition, the insulation sleeve Rostrum for the 3rd partition two sides, for increase insulation creep distance, improve electrical insulating property, make outlet contact box 34 and the 3rd every Be electrically insulated isolation between plate.21 material of bus bar copper row is red copper, the ribbon copper busbar for selecting cross section in rectangular configuration, bus bar copper row 21 It is three.The one end of bus bar copper row 21 is fixed respectively with main bus-bar copper bar 23 and is electrically connected, the other end of bus bar copper row 21 It fixes and is electrically connected respectively with three contacts of inlet wire contact box 33.

Wherein, breaker compartment 30, as shown in Figure 1, built-in 1st handcart 31, breaker 32, inlet wire contact box 33 and outlet Contact box 34.1st guide rail is fixed on the bottom of breaker compartment 30, and the 1st guide rail moves towards arrangement along the front and back of power distribution cabinet, that is, schemes Move towards arrangement in 1 left and right；1st handcart 31 and the cooperation assembly of the 1st guide rail, the 1st handcart 31 can be with forward and backward reciprocal along the 1st guide rail It is mobile.Breaker 32 is assemblied on the 1st handcart 31 and fixes, and the inlet wire contact of breaker 32 being positioned above is located under it Side outlet contact be adapted to respectively with inlet wire contact box 33, outlet contact box 34, it will be appreciated that be, the inlet wire contact of breaker 32 and The contact apertures coaxial line cooperation for being suitable for inlet wire contact insertion of inlet wire contact box 33, the outlet contact of breaker 32 and outlet are touched The contact apertures coaxial line cooperation for being suitable for outlet contact insertion of head cartridge 34.The 1st handcart 31 is manipulated along reciprocal before and after the 1st guide rail It is mobile, realize switching of the breaker 32 between " test position " and " working position ".In addition, the automatic control in order to realize power distribution cabinet, The 1st driving mechanism is also configured in breaker compartment 30, is suitable for the 1st handcart 31 of driving along the 1st forward and backward reciprocating movement of guide rail, so that Automatic switchover of 1st handcart 31 between " test position " and " working position ", i.e., breaker 32 is between " test position " and " working position " Automatically switch.1st driving mechanism selects electromagnetic drive mechanism, is also possible to the driving machine being made of motor and screw body Structure can also be made of oil cylinder or cylinder.

In order to further monitor the contact condition between contact box and contact of breaker, bad generation arcing is avoided contact with, on It states and is equipped with the 1st temperature sensor in busbar compartment 20, the 2nd temperature sensor is set in cable compartment 10.1st temperature sensing Device, the 2nd temperature sensor select infrared temperature sensor.It is sleeved on inlet wire contact box 33, the insulation sleeve outside outlet contact box 34 The through-hole through its side wall is respectively set on pipe, as temperature measuring window, is suitable for the temperature that infrared temperature sensor detects contact box Degree.1st temperature sensor faces the temperature measuring window for being assemblied in insulating sleeve on inlet wire contact box 33, is adapted to detect for inlet wire contact box 33 temperature；2nd temperature sensor faces the temperature measuring window for being assemblied in insulating sleeve on outlet contact box 34, is adapted to detect for outlet The temperature of contact box 34.1st temperature sensor, the 2nd temperature sensor are electrically connected with controller 51 respectively, are suitable for controller The temperature of inlet wire contact box 33, outlet contact box 34 is obtained, and in touch-control screen display, when the temperature anomaly, such as larger than in advance If threshold value when, triggering alarm, or manipulation breaker open operation in order to avoid power distribution cabinet occurs arcing and causes fire, or even causes explosion And it causes an accident.

Wherein, 10 built-in current mutual inductor 11 of cable compartment, grounding switch 12, arrester 13, zero sequence current mutual inductor 14, Copper busbar 15 and protrude into outlet cable 16 in the cable compartment 10.Copper busbar 15 is suitable for and outlet cable 16 is fixed simultaneously Electrical connection.Current transformer 11, grounding switch 12 are fixed on 10 side of cable compartment, are arranged on the rear avris of power distribution cabinet；Electricity Current transformer 11 is located at the top of grounding switch 12.Arrester 13 is fixed on the bottom of cable compartment 10 by mounting rack.It is lightning-arrest One terminals of device 13 are electrically connected with the terminals of grounding switch 12, another terminals with connecing for 10 bottom of cable compartment is set Ground row's electrical connection.The outlet terminals of current transformer 11 and the one end of copper busbar 15 are fixed and are electrically connected.Grounding switch 12 terminals are fixed respectively with the outlet terminals of current transformer 11 by conducting copper and are electrically connected.For greater safety Power distribution cabinet is overhauled, high_voltage isolation can also be concatenated between the front end side (i.e. electrical energy inputs) and bus bar copper row 21 of breaker and opened It closes, preposition disconnecting switch can be referred to as.High voltage isolator is fixed in busbar compartment 20, the inlet wire wiring of high voltage isolator End is electrically connected by copper bar with main bus-bar copper bar 23, and the outlet terminals of high voltage isolator and the one end of bus bar copper row 21 are solid Determine and be electrically connected, the other end of bus bar copper row 21 is fixed respectively with the terminals of inlet wire contact box 33 and is electrically connected.Outlet electricity Cable 16 is the power cable for conveying the electric energy for flowing through power distribution cabinet outward.Outlet cable 16 is protruded into from the outlet hole of power distribution cabinet bottom Into cable compartment 10, as shown in Figure 1, the one end of outlet cable 16 and copper busbar 15 have the other end to fix and be electrically connected, Then outlet cable 16, arrester 13, earthing bar are sequentially connected electrically；Outlet cable 16, current transformer 11, outlet contact box 34 according to Secondary electrical connection.The zero sequence current mutual inductor 14 is sleeved on the outside of outlet cable 16.Zero sequence current mutual inductor 14 passes through bracket It is fixed with cable compartment 10, and be electrically connected with controller 51.Controller 51, which obtains, works as zero sequence current mutual inductor 14 detected zero Sequence current value, when zero-sequence current value is not zero, controller 51 triggers abnormal alarm.

The lower part of power distribution cabinet, the preceding avris positioned at power distribution cabinet is arranged in voltage transformer compartment 40, as shown in Figure 1, voltage Mutual inductor compartment 40 and cable compartment 10 is adjacent, lower section positioned at breaker compartment 30.Voltage transformer compartment 40 is built-in with 2nd handcart 41, voltage transformer 42 and survey pressure contact box 43.Survey the rear side that pressure contact box 43 runs through voltage transformer compartment 40 Wall runs through the 4th partition, extend into cable compartment 10, survey pressure contact box 43 and mutually fix with tank bracket.Survey pressure contact box 43 and the Insulating sleeve is arranged in 4 partition rooms, so as to survey pressure contact box 43 and the electrical isolation isolation of the 4th partition room.It protrudes into cable compartment 10 Pressure contact box 43 is surveyed to be electrically connected with copper busbar 15.2nd guide rail is set in voltage transformer compartment 40, and the 2nd guide rail is along distribution The front-rear direction of cabinet is arranged, the bottom of voltage transformer compartment 40 is fixed on.2nd handcart 41 and the cooperation assembly of the 2nd guide rail, the 2nd Handcart 41 can be moved forward and backward relative to the 2nd guide rail, it will be appreciated that pass through the 2nd guide rail and voltage transformer compartment for the 2nd handcart 41 Mutually assemble.Voltage transformer 42 is arranged on the 2nd handcart 41 and fixes, and voltage transformer 42 is adapted with pressure contact box 43 is surveyed, The contact hole coaxial line for being suitable for contact insertion that can be regarded as the contact of voltage transformer 42 and survey pressure contact box 43 cooperates.This Outside, the 2nd driving mechanism is also configured in voltage transformer compartment 40, the 2nd driving mechanism is mutually assembled with the 2nd handcart 41, the 2nd guide rail, It is moved suitable for the 2nd handcart 41 of driving along the 2nd guide rail, so that automatic switchover of the 2nd handcart 41 between " test position " and " working position ", That is automatic switchover of the voltage transformer 42 between " test position " and " working position ".2nd driving mechanism can be electromagnetic drive mechanism, It is also possible to the driving mechanism being made of motor and screw body, can also be made of oil cylinder or cylinder.

Above-mentioned voltage transformer 42, the 2nd driving mechanism are electrically connected with controller 51 respectively.Controller 51 is suitable for manipulation the 2 driving mechanisms make automatic switchover of the 2nd handcart 41 between " test position " and " working position "；And obtain 42 institute of voltage transformer The voltage of detection, which includes line voltage and phase voltage, and is shown in touch screen 52, is checked for user, and it is different to analyze voltage Reason condition generates alarm when electric voltage exception.

Wherein, 50 built-in controller 51 of compartment, touch screen 52 and connecting terminal block 53 are controlled.Above-mentioned breaker 32, electricity Current transformer 11, zero sequence current mutual inductor 14, voltage transformer 42, the 1st temperature sensor, the 2nd temperature sensor, the 1st driving Mechanism, the 2nd driving mechanism are electrically connected with controller 51 respectively.Touch screen 52 is electrically connected with controller 51.Controller 51 is suitable for behaviour The reciprocating motion of the 1st driving mechanism is controlled, automatic switchover of the 1st handcart 31 between " test position " and " working position " is made；Suitable for manipulation the 2nd Driving mechanism moves back and forth, and makes automatic switchover of the 2nd handcart 41 between " test position " and " working position "；Suitable for manipulating breaker 32 It closes a floodgate, separating brake, controls the "on" and "off" of primary circuit；Controller 51 is suitable for obtaining the switching on and off state of breaker 32, three-phase Phase current, phase voltage, line voltage, zero-sequence current of electric power etc. are simultaneously respectively displayed on touch screen 52.

Compared with prior art, the compartment power distribution cabinet of above embodiment obtains advantageous effects: setting in power distribution cabinet Multiple compartments being made of metal partion (metp), bus, current transformer, breaker, voltage transformer, controller are separately positioned on In different compartments, the electromagnetic radiation between adjacent compartments is isolated in metal partion (metp), realizes electromagnetic isolation, avoids each component in power distribution cabinet Between mutual electromagnetic interference, it is ensured that power distribution cabinet run well, improve the safety of power distribution cabinet.

Wherein, close/open machine and vacuum bubbles 321 built in above-mentioned breaker 32, as shown in Fig. 2, the close/open machine is extremely It is few to be made of resistance ereisma 100, electromagnetic driver 323, insulating cylinder 322.Vacuum bubbles 321 are including vacuum chamber and run through the vacuum chamber And the moving contact and static contact of setting in the inner, static contact are electrically connected with above-mentioned inlet wire contact, constitute the inlet wire touching of breaker Head, moving contact are electrically connected with above-mentioned outlet contact, constitute the outlet contact of breaker.Hinder the output shaft and electromagnetism of ereisma 100 One end axis of 323 output shaft of driver is fixedly connected, the other end of 323 output shaft of electromagnetic driver and one end of insulating cylinder 322 Axis is fixedly connected, the other end axis of insulating cylinder 322 and the moving contact axis connection of vacuum bubbles 321；It is understood that above-mentioned resistance ereisma 100, successively axial restraint connects for electromagnetic driver 323, insulating cylinder 322 and vacuum bubbles 321.Above-mentioned resistance ereisma 100, electromagnetism drive Dynamic device 323, insulating cylinder 322 and vacuum bubbles 321 are assembled and are fixed with the tank bracket of breaker respectively.

Above-mentioned resistance ereisma 100, as shown in figure 3, including cylinder body 110, piston mechanism 120, drainage machine in closed state Structure 130.Cylinder body 110 includes cylindrical cylinder barrel 111, the 1st end cap 112 and the 2nd end cap 113.The upper and lower ends of cylinder barrel 111 are opened Mouthful, the 1st end cap 112 lid closes the upper end opening in cylinder barrel 111 and realizes that sealing is fixed by integrated molding mode；2nd end cap 113 Lid closes the lower ending opening in cylinder barrel 111 and fixation, realizes sealing by the 1st sealing ring 115 between the 2nd end cap 113 and cylinder barrel 111. Piston mechanism 120 includes piston 121 and piston rod 122.The inside of cylinder body 110, one end of piston rod 122 is arranged in piston 121 Portion protrudes into the inside of cylinder body 110, and mutually fix with piston 121 through the through-hole at 112 middle part of the 1st end cap, piston rod 122 and work It fills in and sealing is realized by the 3rd sealing ring 124 between 121 middle through-holes；By the between 112 middle through-hole of piston rod 122 and the 1st end cap 2 sealing rings 116 realize sealing, and axis pressing sleeve 114 is set in piston rod 122, and fixed with the 1st end cap 112, for squeezing limit the 2 sealing rings 116, it is ensured that good sealing effect；It is real by the 4th sealing ring 125 between 111 inner wall of the piston 121 and cylinder barrel Now seal.The inner space of cylinder body 110 is divided into the rod chamber being located above and underlying rodless cavity by piston 121, such as Shown in Fig. 3.Damping hole 123 is set on piston 121, flows into rodless cavity and rodless cavity suitable for the resisting medium in rod chamber Interior resisting medium flows into rod chamber, to discharge stored energy in resisting medium, and generates damping force, and it is dynamic to absorb breaker The portion of energy of contact.The area of above-mentioned damping hole 123 be piston 121 area 0.6-1.3%, preferably 0.8%, suppression The effect of closing rebound processed is preferable.Resisting medium is filled in cylinder body 110, resisting medium is preferably nitrogen, be also possible to helium, Other inert gases such as neon.Charged pressure is greater than the high pressure nitrogen of a standard atmospheric pressure, the pressure of high pressure nitrogen in cylinder body 110 Power is preferably 2 standard atmospheric pressures.The through-hole extended along its axis direction, assembly in the through-hole are set on the 2nd end cap 113 The check valve be connected to from outside to inside, prevented from inside to outside.The design of check valve, which facilitates, is filled with resisting medium into cylinder body 110, together When prevent resisting medium from leaking.It should be noted that resisting medium can also select damping oil, damped when selecting damping oil to be used as When medium, 123 area of damping hole is larger, be piston area 2-8%, preferably 5%.

Breaker configuration resistance ereisma 100, when power distribution cabinet closes a floodgate, the close/open machine of breaker drives resistance ereisma 100 Piston is mobile to rod chamber direction, and the resisting medium in rod chamber is compressed by acting, and the resisting medium is through damping hole 123 to no bar Intracavitary flowing generates damping force, absorbs the portion of energy of moving contact of breaker, the i.e. portion of energy of vacuum bubbles moving contact；Piston 121 speed is bigger, and generated damping force is bigger, and the negative power done to moving contact of breaker is bigger, the energy of moving contact It is consumed bigger, then the energy for the moment moving contact that closes a floodgate is smaller, and the energy that moving contact reversely bounces is smaller, is conducive to inhibit dynamic touching Head closing rebound.For power distribution cabinet in moment of closing a floodgate, the speed of piston 121 is maximum, and the damping force of generation is maximum, and resistance ereisma is effectively inhaled The energy for receiving moving contact of breaker reduces the combined floodgate instantaneous speed of moving contact, inhibits moving contact of breaker that closing rebound occurs, with It avoids moving contact that closing rebound arcing occurs, extends the breaker service life.

Though above-mentioned resistance ereisma 100, which can efficiently reduce power distribution cabinet, occurs closing rebound arcing, moment between closing, i.e. resistance ereisma 100 piston is close to end of travel, and piston (/ moving contact) speed highest, damping force is maximum, deposits in the resisting medium in rod chamber The energy of storage is higher, and the piston reverses direction after closing a floodgate will be driven to move, that is, drive moving contact reversely to bounce, and promotes spring combustion in turn Arc occurs.In order to solve this problem, inventor improves above-mentioned resistance ereisma 100: resistance ereisma 100 is also configured drainage mechanism 130 and drain hole 150.Aforementioned drainage mechanism 130 is arranged on the 1st end cap 112, as shown in figure 3, including being arranged at the 1st end Drainage lumens 132, drainage spool 131, the 1st reset spring 135 and end plate 133 on lid 112.Drainage lumens 132 are to be arranged at the 1st end The cavity structure of upper end opening in lid 112, selects the vestibule of the rounded structure in its section.The axis and cylinder body 110 of drainage lumens 132 The parallel cooperation of axis, i.e. the axis of drainage lumens 132 cooperation parallel with the axis of the 1st end cap 112.It is set in drainage lumens 132 Drainage valve seat 134 is set, drainage valve seat 134 is located at rod chamber side, that is, is located at the lower end side of drainage lumens 132.Drainage valve seat 134 The through-hole of connection rod chamber is set in middle part portion, and the through-hole and drainage valve seat 134,132 coaxial line of drainage lumens cooperate, and the row of connection Chamber 132 and rod chamber are flowed, and its diameter is less than the diameter of drainage lumens 132.Drainage spool 131 includes the axial spool successively fixed Portion 1312 and drainage feeler lever 1311 cooperate spool portion 1312 and 1311 coaxial line of drainage feeler lever as a kind of selection.The row Flow valve core 131 is packed into drainage lumens 132, and the drainage feeler lever 1311 of drainage spool 131 protrudes from the lower end surface of the 1st end cap 112, row The length mark that stream feeler lever 1311 protrudes from 112 lower end surface of the 1st end cap is H₀, it will be appreciated that it is the drainage feeler lever of drainage spool 131 1311 protrude from 112 lower end surface of the 1st end cap and extend into rod chamber；The 1st reset spring 135 is packed into drainage lumens 132, end again The sealing of the upper end of plate 133 and drainage lumens 132 is fixed, and end plate 133 is located at the outside of the 1st end cap 112, i.e. end plate 133 and the 1st end The upper surface of lid 112, which seals, to be fixed.Above-mentioned drainage valve seat 134, the 131, the 1st reset spring 135 of drainage spool, end plate 133 according to It is secondary to fit.1st reset spring 135 is in compressive state, and drainage valve seat 134 and the sealing of drainage spool 131 cooperate, i.e. drainage machine Structure 130 is resetted in the state for blocking circulation.The drain hole 150 includes the 1st drain hole being arranged in the 1st end cap 112 151, the 2nd drain hole 152 and the 3rd drain hole 153 in 111 wall of cylinder barrel are set.1st drain hole 151 is along the 1st end cap 112 The axial direction arrangement that radial direction arranges and is connected to the 132, the 2nd drain hole 152 of drainage lumens along cylinder barrel 111, the 3rd drain hole 153 is along cylinder barrel 111 Radial arrange and be connected to rodless cavity.Above-mentioned drainage lumens 132, the 1st drain hole 151, the 2nd drain hole 152 and the 3rd drain hole 153, the rodless cavity for hindering ereisma 100 is sequentially communicated, and forms resisting medium through drainage mechanism 130,150 drainage of drain hole to rodless cavity Flow path.

When power distribution cabinet is closed a floodgate by operation, the moving contact of the close/open machine driving vacuum bubbles of breaker 32 is transported to static contact Dynamic, the piston of resistance ereisma 100, which is driven to rod chamber side, to be moved, and resisting medium passes through damping hole to rodless cavity stream in rod chamber It is dynamic, damping force is generated, the portion of energy of close/open machine is absorbed, is lowered speed of the moving contact before combined floodgate, i.e. energy quilt It reduces, for piston 121 in stroke latter end, piston 121 hits the drainage feeler lever 1311 of drainage spool 131, drives drainage spool 131 Move to far from the direction of drainage valve seat 134, drainage mechanism 130 is triggered drainage, i.e. drainage spool 131 is to separate drainage valve seat 134 directions move, and resisting medium is flowed by drainage mechanism 130, drain hole 150 into rodless cavity in rod chamber, and release has bar The energy that intracavitary resisting medium is stored in its end of travel, then damping Jie is exhausted 130 row of mechanism in rod chamber after combined floodgate It flows and 121 counter motion of piston can not be promoted, i.e., moving contact of breaker cannot be promoted to generate spring after combined floodgate, efficiently against The problem of closing rebound arcing that resisting medium is promoted in rod chamber.

After hindering the configuration of ereisma 100 drainage mechanism 130, when power distribution cabinet closes a floodgate, it is built in the combined floodgate temperature of the vacuum bubbles of breaker It rises and is greatly reduced compared with before, but its temperature is still excessively high, for the abnormal phenomenon, inventor is into one the study found that drainage machine The energy that moving contact reversely bounces after structure 130 makes resistance ereisma 100 that can not absorb breaker closing, causes moving contact still to occur smaller Closing rebound, it is anti-at it this is because: the piston 121 of resistance ereisma 100 is moved from end of travel (i.e. closing moment) opposite direction The initial stage of direction movement is especially H in stroke₀Reversed spring during, drainage mechanism 130 is in and is triggered and is communicated with bar The state of chamber and rodless cavity, i.e., resisting medium is mainly flowed through drain hole 150, drainage mechanism 130 into rod chamber in rodless cavity, Resisting medium cannot generate damping force to absorb the energy that switch on of moving contact is reversely bounced in rodless cavity.It is asked to solve the technology Counterseal mechanism 140 is arranged in topic on the flow path that drainage mechanism 130 is suitable for resisting medium circulation, in piston 121 from the stroke of combined floodgate When end opposite direction moves, prevents resisting medium from flowing through drainage mechanism 130 from rodless cavity to rod chamber, make resisting medium can only It is flowed by damping hole 123 from rodless cavity to rod chamber, generates damping force to absorb the energy that moving contact reversely bounces, further Inhibit moving contact reversely to bounce, avoids combined floodgate arcing, improve the combined floodgate performance of power distribution cabinet.The counterseal mechanism 140, such as Fig. 3, figure Shown in 4, including choked flow chamber 141, counterseal spool 143, the 2nd reset spring 144 and the plug being configured in the 1st end cap 112 145.Radial direction arrangement of the choked flow chamber 141 along the 1st end cap 112, outer end opening, the cavity for selecting section rounded.Choked flow chamber 141 The inner end positioned at rod chamber side valve core case 142 is set, if Fig. 4 shows, i.e. the left end that is located at choked flow chamber 141 of valve core case 142 Side, valve core case 142 is sealed with 143 phase of counterseal spool to be cooperated；The middle part of valve core case 142 is arranged along its axially extending valve seat orifice, The valve seat orifice is connected with choked flow chamber 141.The one end of 1st drain hole 151 is connected with drainage lumens 132, the other end and valve The valve seat orifice at 142 middle part of core print seat is connected.The one end of 2nd drain hole 152 is connected to choked flow chamber 141, the other end and the 3rd row The one end of discharge orifice 153 is connected to, and the other end of the 3rd drain hole 153 is connected to the rodless cavity of resistance ereisma 100.To be formed with bar Intracavitary resisting medium through drainage mechanism 130, counterseal mechanism 140,150 drainage of drain hole to rodless cavity flow path.Above-mentioned counterseal Spool 143, the 2nd reset spring 144 are successively assemblied in choked flow chamber 141, and the outer end seal of plug 145 and choked flow chamber 142 is solid Fixed, i.e., the right part with choked flow chamber 142 is fixed.Above-mentioned valve core case 142, counterseal spool 143, the 2nd reset spring 144, plug 145 successively fit, and the 2nd reset spring 144 is in compressive state, counterseal spool 143 and the sealing cooperation of valve core case 142, that is, hinder Inverse mechanism 140 is resetted in the state for blocking circulation.After introducing counterseal mechanism 140, resisting medium is through drainage lumens 132, drain hole 150 can only flow from rod chamber into rodless cavity.It is to be understood that the rod chamber of resistance ereisma 100, drainage lumens 132, the 1st drainage Hole 151, choked flow chamber 141, the 2nd drain hole 152, the 3rd drain hole 153, the rodless cavity for hindering ereisma 100 are sequentially connected logical, are formed with The flow path of resisting medium drainage into rodless cavity in rod cavity, counterseal mechanism 140 make resisting medium can only be from there is bar through the flow path Chamber to rodless cavity drainage, and cannot reverse drainage so that resistance ereisma 100 absorbs the energy that reversely bounces of moving contact, further head Reduce and even avoids breaker that closing rebound arcing occurs.

When compartment power distribution cabinet closes a floodgate, breaker close/open machine drives the piston of resistance ereisma to move to rod chamber direction, has Resisting medium in rod cavity is compressed, and the resisting medium in the rod chamber flows into rodless cavity through the damping hole on piston, generates resistance Buddhist nun's power absorbs portion of energy of the moving contact of breaker before combined floodgate, reduces switch on of moving contact instantaneous velocity, to inhibit breaker dynamic Closing rebound occurs for contact；The piston of ereisma is hindered in stroke latter end, the drainage feeler lever of piston slap drainage mechanism, drainage spool It is moved to far from the direction of drainage valve seat, drainage mechanism is triggered drainage, and the resisting medium in rod chamber is flowed into through drainage mechanism Drain hole, flow into drain hole resisting medium squeeze counterseal mechanism counterseal spool, counterseal spool to far from valve core case direction Mobile, counterseal mechanism is triggered drainage, then the resisting medium of rod chamber is flowed into through drainage mechanism, counterseal mechanism, drain hole without bar Chamber, the energy that resistance ereisma is stored at the end of the stroke are released, what elimination resistance ereisma bounced after driving moving contact of breaker to close a floodgate Driving force further suppresses moving contact of breaker and closing rebound occurs；After breaker closing, moving contact of breaker reversely bounces, Counterseal mechanism is reset immediately under the 2nd action of reset spring, keeps the state for blocking circulation, resisting medium can only be through on piston Damping hole flow into rod chamber, generate damping force, absorb the energy that reversely bounces after switch on of moving contact, another step inhibits moving contact Reversed spring occurs.Inhibit moving contact of breaker that closing rebound occurs using above-mentioned three kinds of technological means, to avoid moving contact Closing rebound arcing occurs, and avoids breaker that explosion caused by arcing occurs, improves the combined floodgate performance and safety of power distribution cabinet.

Counterseal compatible with drainage mechanism 130 mechanism 140 is set on the 1st end cap 112, and counterseal mechanism 140 makes to damp Medium can only be flowed from rod chamber into rodless cavity through drainage lumens 132, drain hole 150.When power distribution cabinet is manipulated closing a floodgate, breaker Moving contact generates reversed spring of closing a floodgate, and the piston 121 of resistance ereisma 100 is driven to move from combined floodgate end of travel opposite direction, anti-at this During movement, piston 121 is mobile to the direction of rodless cavity, counterseal mechanism 140 prevent resisting medium through drain hole 150, Drainage mechanism 130 flows into rod chamber, then resisting medium can only flow into rod chamber through damping hole 123 and generate resistance in rodless cavity Buddhist nun's power absorbs the energy of vacuum bubbles switch on of moving contact spring, further suppresses moving contact of breaker and generates closing rebound, avoids true Closing rebound arcing occurs between vacuole moving contact and static contact, extends the service life of breaker, it is ensured that power distribution cabinet trouble free service, And power distribution network safe operation.

Compartment power distribution cabinet of the invention include tank bracket and be fixed on the tank bracket be made of metal partion (metp) in closed state The cable compartment of built-in current mutual inductor, the busbar compartment of built-in bus bar copper bar, breaker compartment, voltage transformer compartment and Control compartment.The rear avris of tank bracket is arranged in the cable compartment, busbar compartment, and cable compartment is located at the lower section of busbar compartment. Breaker compartment, voltage transformer compartment, control compartment are arranged on the preceding avris of tank bracket, breaker compartment and busbar compartment phase Front that is adjacent and being arranged on busbar compartment, voltage transformer compartment are arranged below breaker compartment, and control compartment is set It sets above breaker compartment.Breaker compartment configures the 1st handcart, breaker, inlet wire contact box and outlet contact box.Inlet wire touching Head cartridge one end through between breaker compartment and busbar compartment metal partion (metp) and fixation, outlet contact box one end through breaker every Metal partion (metp) and fixation between room and cable compartment.Bus bar copper row one end is electrically connected with inlet wire contact box, the other end be suitable for and Protrude into the main bus-bar copper bar electrical connection in busbar compartment；The inlet wire terminals of current transformer are electrically connected with outlet contact box, out Line terminals are suitable for and protrude into the electrical connection of the outlet cable in cable compartment.1st handcart is filled by the 1st guide rail and breaker compartment Match, breaker is fixed on the 1st handcart, the inlet wire contact of breaker, outlet contact successively with inlet wire contact box, outlet contact box It is adapted.2nd handcart, voltage transformer and survey pressure contact box built in voltage transformer compartment.Pressure contact box one end is surveyed through electricity The metal partion (metp) between mutual inductor compartment and cable compartment and fixation are pressed, the outlet terminals electricity of pressure contact box and current transformer is surveyed Connection.2nd handcart is mutually assembled by the 2nd guide rail with voltage transformer compartment, and voltage transformer is fixed on the 2nd handcart, voltage The contact of mutual inductor is adapted with pressure contact box is surveyed.Control compartment built-in controller, controller and breaker, current transformer, Voltage transformer is electrically connected.

Compared with prior art, the present invention achieves following beneficial technical effect.

The multiple compartments being made of metal partion (metp) of setting, mutual by bus, current transformer, breaker, voltage in power distribution cabinet Sensor, controller are separately positioned in different compartments, metal partion (metp) be isolated adjacent compartments between electromagnetic radiation, realize electromagnetism every From avoiding the mutual electromagnetic in power distribution cabinet between each component from interfering, it is ensured that power distribution cabinet runs well, and improves the safety of power distribution cabinet Property.

The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, the present invention Claimed range is delineated by the appended claims, the specification and equivalents thereof from the appended claims.

Claims (10)

1. a kind of compartment power distribution cabinet for eliminating electromagnetism mutual interference, including tank bracket, it is characterised in that: further include be fixed on the tank bracket by The cable compartment (10) of the built-in current mutual inductor (11) in closed state that metal partion (metp) is constituted, built-in bus bar copper bar (21) Busbar compartment (20), breaker compartment (30), voltage transformer compartment (40) and control compartment (50), the cable compartment (10), the rear avris of tank bracket is arranged in busbar compartment (20), and cable compartment (10) is located at the lower section of busbar compartment (20)；It is described disconnected Road device compartment (30), voltage transformer compartment (40) control the preceding avris that compartment (50) are arranged on tank bracket, breaker compartment (30) adjacent and be arranged on the front of busbar compartment (20) with busbar compartment (20), voltage transformer compartment (40) is set Below breaker compartment (30), control compartment (50) setting is above breaker compartment (30)；The breaker compartment (30) Configure the 1st handcart (31), breaker (32), inlet wire contact box (33) and outlet contact box (34)；Inlet wire contact box (33) one end Metal partion (metp) and fixation between breaker compartment (30) and busbar compartment (20), outlet contact box (34) one end is through open circuit Metal partion (metp) and fixation between device compartment (30) and cable compartment (10)；Bus bar copper row (21) one end and inlet wire contact box (33) Electrical connection, the other end are suitable for and protrude into the electrical connection of the main bus-bar copper bar in busbar compartment (20)；The inlet wire of current transformer (11) Terminals are electrically connected with outlet contact box (34), and outlet terminals are suitable for and protrude into the outlet cable (16) in cable compartment (10) Electrical connection；1st handcart (31) is assembled by the 1st guide rail and breaker compartment (30), and breaker (32) is fixed on the 1st handcart (31) On, inlet wire contact, the outlet contact of breaker (32) are successively adapted with inlet wire contact box (33), outlet contact box (34)；Electricity It presses the 2nd handcart (41) built in mutual inductor compartment (40), voltage transformer (42) and surveys pressure contact box (43)；Survey pressure contact box (43) Pressure contact box (43) and electricity are surveyed through the metal partion (metp) between voltage transformer compartment (40) and cable compartment (10) and fixation in one end The outlet terminals of current transformer (11) are electrically connected；2nd handcart (41) is mutually assembled by the 2nd guide rail with voltage transformer compartment, Voltage transformer (42) is fixed on the 2nd handcart (41), and the contact of voltage transformer (42) is adapted with pressure contact box (43) is surveyed； Control compartment (50) built-in controller (51), controller (51) and breaker (32), current transformer (11), mutual induction of voltage Device (42) is electrically connected.

2. compartment power distribution cabinet according to claim 1, it is characterised in that: the also built-in grounding switch of the cable compartment (10) (12) and arrester (13)；The terminals of grounding switch (12) are electrically connected with the outlet terminals of current transformer (11)；It is lightning-arrest One terminals of device (13) are electrically connected with the terminals of grounding switch (12), and another terminals and setting are at cable compartment (10) bottom The earthing bar in portion is electrically connected.

3. compartment power distribution cabinet according to claim 2, it is characterised in that: also configure zero sequence electricity in the cable compartment (10) Current transformer (14), zero sequence current mutual inductor (14) are suitable for being sleeved on the outside of outlet cable (16)；Zero sequence current mutual inductor (14) fixed by bracket and cable compartment (10), and be electrically connected with controller (51).

4. compartment power distribution cabinet according to claim 3, it is characterised in that: be also configured high pressure in the busbar compartment (10) The inlet wire terminals of disconnecting switch, the high voltage isolator are suitable for and the electrical connection of main bus-bar copper bar, outlet terminals and bus copper The one end electrical connection of (21) is arranged, the other end of bus bar copper row (21) is electrically connected with inlet wire contact box (33).

5. compartment power distribution cabinet according to claim 4, it is characterised in that: further include that the 1st temperature sensor and the 2nd temperature pass Sensor, the 1st temperature sensor are adapted to detect for inlet wire contact box (33) temperature, and the 2nd temperature sensor is adapted to detect for outlet contact box (34) temperature, the 1st temperature sensor, the 2nd temperature sensor are electrically connected with controller (51) respectively.

6. compartment power distribution cabinet according to claim 5, it is characterised in that: be also assembled the in the breaker compartment (30) 1 driving mechanism, the 1st driving mechanism is suitable for the 1st handcart (31) of driving and moves back and forth along the 1st guide rail, for breaker in " work Position " and " test position " switching.

7. compartment power distribution cabinet according to claim 6, it is characterised in that: also set in the voltage transformer compartment (40) The 2nd driving mechanism is set, the 2nd driving mechanism is suitable for the 2nd handcart (41) of driving and moves back and forth along the 2nd guide rail, is used for mutual induction of voltage Device is in " working position " and " test position " switching.

8. compartment power distribution cabinet according to claim 7, it is characterised in that: breaker (32) the internally provided with vacuum bubble and division Brake mechanism, the close/open machine are at least made of resistance ereisma (100), electromagnetic driver (323) and insulating cylinder (322), the resistance Successively axial restraint connects for ereisma (100), electromagnetic driver (323), insulating cylinder (322) and vacuum bubbles (321).

9. compartment power distribution cabinet according to claim 8, it is characterised in that: the resistance ereisma (100) include cylinder body (110), Piston mechanism (120), drainage mechanism (130), counterseal mechanism (140) and drain hole (150)；The cylinder body (110) includes sealing Cylinder barrel (111), the 1st end cap (112) and the 2nd end cap (113) of assembly；The piston mechanism (120) includes being arranged in cylinder body (110) piston rod (122) that piston (121), one end in are fixed through the 1st end cap (112) and piston (121), piston (121) On damping hole (123) are set；The drain hole (150) include be arranged the 1st drain hole (151) in the 1st end cap (112), The 2nd drain hole (152) and the 3rd drain hole (153) being arranged in cylinder barrel (111) wall；The drainage mechanism (130) includes setting Run through in the drainage feeler lever (1311) of the 1st end cap (112) interior drainage lumens (132) and drainage spool (131), drainage spool (131) Rod chamber is protruded into 1st end cap (112) lower end surface, is suitable for piston slap drainage feeler lever and triggers drainage mechanism (130) drainage；The resistance Inverse mechanism (140) include being set to the choked flow chamber (141) radially extended in the 1st end cap (112), counterseal spool (143), the Valve core case (142), valve core case is set in 2 reset springs (144) and plug (145), the end that choked flow chamber (141) is located inside (142) valve seat orifice of connection choked flow chamber (141), the counterseal spool (143), the assembly of the 2nd reset spring (144) is set in middle part In the choked flow chamber (141), the end that plug (145) and choked flow chamber (142) are located at outside is fixed, and the 2nd reset spring (144) is in Compressive state, counterseal spool (143) and valve core case (142) sealing cooperation, the resisting medium of drainage lumens (132) is flowed through suitable for prevention Opposite direction flowing；The drainage lumens (132), the 1st drain hole (151), the valve seat orifice of valve core case (142), choked flow chamber (141), the 2nd Drain hole (152), the 3rd drain hole (153), cylinder body (110) rodless cavity be sequentially communicated.

10. compartment power distribution cabinet according to claim 9, it is characterised in that: the drainage mechanism (130) includes setting the The drainage lumens (132) of the top end opening extended on 1 end cap (112) along its axis direction, drainage spool (131), the 1st reset spring (135) and end plate (133)；The end that drainage lumens (132) are located at cylinder body (110) rod chamber side is set drainage valve seat (134), row The through-hole through rod chamber extended along its axis direction is set on stream valve seat (134)；The drainage spool (131), the 1st are answered Position spring (135) is assemblied in drainage lumens (132), and the other end of end plate (133) and drainage lumens (132), which seals, to be fixed, and the 1st is multiple Position spring is in compressive state, and drainage valve seat (134) and drainage spool (131) sealing cooperate；The row of the drainage spool (131) Stream feeler lever (1311) protrudes from the end face of the 1st end cap (112) and extend into rod chamber.