CN205985915U - Cubical switchboard with motor control circuit and safety lock - Google Patents

Cubical switchboard with motor control circuit and safety lock Download PDF

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Publication number
CN205985915U
CN205985915U CN201620943615.2U CN201620943615U CN205985915U CN 205985915 U CN205985915 U CN 205985915U CN 201620943615 U CN201620943615 U CN 201620943615U CN 205985915 U CN205985915 U CN 205985915U
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CN
China
Prior art keywords
switch cubicle
room
safety lock
handcart
bar
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Active
Application number
CN201620943615.2U
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Chinese (zh)
Inventor
宋玉纯
贺玉贵
陈井玉
常宝
郭凯
党建明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Power Supply Forster Switch Equipment Co Ltd
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Beijing Power Supply Forster Switch Equipment Co Ltd
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Priority to CN201620943615.2U priority Critical patent/CN205985915U/en
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Abstract

The utility model provides a cubical switchboard with motor control circuit and safety lock which characterized in that includes: a housing. The baffle, it divide into front portion and rear portion with the cubical switchboard, shutter mechanism curtain plate, it can be opened and close, the main bus -bar room for accept the main bus -bar, the handcart room for accept the handcart, cable chamber, cable chamber are located the rear portion below of cubical switchboard, relay instrument room, relay instrument room are located the anterior top of cubical switchboard, quiet contact cover box, quiet contact cover box set up in the main bus -bar room, the static contact is arranged in quiet contact cover box, current transformer, it is arranged in the main bus -bar room, the safety lock, the safety lock, when the safety lock upwards slides, can be to the unblock of cabinet door, and when the safety lock lapse, decide cabinet door lock, and control circuit for the outside motor of control. This cubical switchboard dependable performance, it is convenient to maintain, and the security is high to installation and commissioning that can be convenient is favorable to improving work efficiency.

Description

A kind of switch cubicle with electromotor control circuit and safety lock
Technical field
This utility model is related to electric field, more particularly, to the switch cubicle of electrical equipment.
Background technology
Switch cubicle is a kind of electrical equipment.Generally, outside line is introduced into the master switch in switch cabinet, subsequently into sub-control Switch, each branch is needed to arrange by it.As instrument, automatic control, motor magnetic switch, various A.C. contactors etc., have also sets Altitude chamber and low-pressure chamber switch cubicle, are provided with high voltage bus, such as power plant etc., and have is additionally provided with as protecting subtracting in low week of capital equipment Carry.
The Main Function of switch cubicle is to carry out generating electricity, transmit electricity in power system, during distribution and electric energy conversion, carrying out Folding, control and protection electrical equipment.Part in switch cubicle mainly has chopper, disconnecting switch, on-load switch, operation machine Structure, transformer and various protection device etc. form.The sorting technique of switch cubicle is a lot, such as permissible by chopper mounting means It is divided into withdraw-type switch cabinet and fixed switching cabinet;Or the difference according to cabinet body structure, open type switch cubicle, metal envelope can be divided into Close switch cubicle and metal enclosed armoured switch cabinet;High-tension switch cabinet, Medium Voltage Switchgear can be divided into according to electric pressure difference again With low-tension switch cabinet etc..Be primarily adapted for use in power plant, transformer station, petrochemical industry, metallurgical steel rolling, industry light industry textile industry, industrial enterprise and The various difference occasion such as residential quarters, skyscraper.
The safety designing for switch cubicle of motor, convenience, operability, extensibility in this low-tension switch cabinet Etc. aspect all there is significant impact.Good motor designs will be helpful to the safety of raising equipment, operability and can expand Malleability, and effectively ensure safety the reduces cost of personnel.
The layout of existing switch cubicle is not reasonable, thus leading to the maintenance inconvenience of operator, and easily causes tactile Electrification, safety and convenience be not good.
Utility model content
The purpose of this utility model is to provide a kind of new switch cubicle so that attendant can be safely and conveniently to electricity Gas equipment or switch cubicle are safeguarded.
According to one side of the present utility model, provide a kind of switch cubicle with electromotor control circuit and safety lock, It is characterized in that, including:Housing, described housing is cuboid;Dividing plate (19), it is vertically installed in described switch cubicle, by institute State switch cubicle and be divided into front and rear;Valve mechanism curtain plate (14), it is arranged on described dividing plate, can open and close;Main Bus-bar room (A), described main bus-bar room (A) is located at the rear upper of described switch cubicle, for receiving main bus-bar;Handcart room (B), institute State the anteriomedial that handcart room (B) is located at described switch cubicle, for receiving handcart;Cable vault (C), described cable vault (C) is located at The lower rear of described switch cubicle;Relay control room (D), described relay control room (D) is located at the front portion of described switch cubicle Top;Fixed contact cover box (6), described fixed contact cover box (6) is arranged in described main bus-bar room (A), has opening, and described Opening is in described valve mechanism curtain plate (14) relatively;Static contact (5), in described fixed contact cover box (6);Current transformer (7), it is located in described main bus-bar room (A), and relative with described valve mechanism curtain plate (14);Three main bus-bar grooves (4) are described Three main bus-bar grooves (4) are arranged on described main bus-bar room (A) in the mode parallel and parallel to the ground with described dividing plate (19) In, for receiving three main lines respectively;Draw branch bar (2) under three, respectively described three main lines are connected to described stationary contact Head;And handcart (15), described handcart (15) includes pulley, the first moving contact and the second moving contact, in described handcart (15) energy Enough described handcart room (B) is slid in and out by described pulley, when described handcart (15) slides into described handcart room (B), described Valve mechanism curtain plate (14) is opened, thus described first moving contact is connected with described static contact (5), described second moving contact and institute State current transformer (7) to connect;Described handcart (15) is connected with described relay control room (C) also by plug connector (13);Connect Ground bus (10), it is arranged on the bottom of described cable vault (C), is connected with described current transformer (7) by cable (8);Connect Ground switch (9), it is arranged on the dividing plate (19) in described (C), is connected with described current transformer (7);Earthed switch operates Mechanism (17), before and after it runs through described housing and parallel to the ground, described earthing switch operating mechanism (17) is opened with described ground connection Close (9) to be mechanically connected, to control the opening and closing of described earthed switch (9);Little bus-bar room (E), it is located at described relay Above control room (D);Secondary wire protection plate (18), is arranged on the lower front of described switch cubicle, and passes through horizontal baffle (16) Separate with described handcart room (B), the internal space of described secondary wire protection plate (18) is used for laying the electricity introducing outside switch cubicle Cable or the cable drawn from described switch cubicle;Described switch cubicle has cabinet door, and the width of described cabinet door is less than described switch cubicle Width, thus the side of described cabinet door forms step structure, the side of wherein said described cabinet door with the side wall of described switch cubicle While being installed with two pins with above-below direction, the side wall front of described switch cubicle is installed with a pin with cap body Nail;Safety lock is provided with described step structure, described safety lock has into 90 degree of first side and second side, described First side has two sliding trays corresponding with described two pins, so that described safety lock can slide up and down, Described second side has the first hole and second hole of Liang Ge UNICOM, the diameter with diameter greater than described cap body in described first hole, The diameter in described second hole is less than the diameter of described cap body but is more than the diameter of the pin with described cap body;When described safety lock During upward sliding, described first hole is aligned with described cap body such that it is able to unlock to cabinet door, and works as described safety lock slide downward When, described second hole and described cap body to turning, thus cabinet door is locked;Chopper (200), described static contact (5) is disconnected with described One end of road device (200) connects, and the other end of described chopper (200) is connected with one end of described current transformer (7);Contact Device group (400), the other end of described current transformer (7) is connected with one end of described catalyst group (400), thermorelay (600), the other end of described catalyst group (400) is connected with one end of described thermorelay (600);And second plug connector (500), it includes the second socket, and described second socket is connected with the other end of described thermorelay (600).
According to an embodiment of the present utility model, described valve mechanism curtain plate (14) includes first group of rectangle and overturns blade Overturn blade with second group of rectangle, described first group of rectangle upset blade rotates around first axle (14-1), described second group of rectangle Upset blade rotates around the second axle (14-2), and described second axle (14-2) is parallel with described first axle (14-1) and positioned at described the Below one axle, wherein said first group and second group of rectangle upset blade include the equal multiple upset blades of quantity, and described the One axle (14-1) is located at the top that described first group of rectangle overturns the weight of each upset blade in blade, and described second axle (14-2) it is located at the top that described second group of rectangle overturns the center of gravity of each upset blade in blade.
According to an embodiment of the present utility model, described housing is manufactured by aluminizing zinc steel plate, and bolt-connection forms, surface Using electrostatic molding powder spray treatment.
According to an embodiment of the present utility model, described switch cubicle also includes hoisting board (12), and it is provided in described The top of switch cubicle, for being connected to lifting appliance when lifting by crane described switch cubicle.
According to an embodiment of the present utility model, described valve mechanism curtain plate (14) is in closing shape in its natural state State.
According to an embodiment of the present utility model, inside described little bus-bar room, adopt φ 6 copper rod, under cause described relay On terminal in instruments and meters room (D) or switch.
This utility model provide switch cubicle dependable performance, easy to maintenance, safe, and can easily install and Debugging, thus be conducive to improving work efficiency.
Brief description
Fig. 1 is the switch cubicle with electromotor control circuit and safety lock according to one embodiment of this utility model Left view.
Fig. 2 is the structural representation of the valve mechanism curtain plate according to an embodiment of the present utility model.
Fig. 3 is the use state schematic diagram of the safety lock according to an embodiment of the present utility model.
Fig. 4 is the enlarged drawing of safety lock in Fig. 3.
Fig. 5 shows according to the control circuit for motor of the present utility model.
Fig. 6 is the electrical connection schematic diagram according to the electromotor control circuit for low-tension switch cabinet of the present utility model.
Specific embodiment
Below in conjunction with accompanying drawing, specific embodiment of the present utility model is described in detail.
Fig. 1 is the switch cubicle with electromotor control circuit and safety lock according to one embodiment of this utility model Left view.Left view can clearly and intuitively represent invention main points of the present utility model.
As shown in figure 1, this utility model provide there is electromotor control circuit and the switch cubicle of safety lock includes:
Housing, described housing is cuboid.Alternatively, housing is that aluminizing zinc steel plate manufactures, and bolt-connection forms.Front/rear door Using electrostatic molding powder spray treatment.
Dividing plate 19, it is vertically installed in described switch cubicle, and described switch cubicle is divided into front and rear (to correspond respectively to The right part of Fig. 1 and left part).Anterior generally operating portion, rear portion is generally high pressure or the part of arrangement cable, and the two separately sets Put the safety of the personnel of being beneficial to, prevent high pressure and get an electric shock.Alternatively, dividing plate is the metallic plate processing through electroplating anticorrosion.
Valve mechanism curtain plate 14, it is arranged on described dividing plate, can open and close.When opening, switch cubicle and front portion With rear portion UNICOM such that it is able to connect the electric component of front and rear;And when closing (during such as attendant's maintenance), then may be used To isolate front and rear it is ensured that the safety of personnel.Opening of valve mechanism curtain plate 14 can be automatic or manual , or can be backed down by handcart, and be automatically switched off when handcart exits, must not arbitrarily open curtain plate during maintenance.
Bus-bar room A, described main bus-bar room A are located at the rear upper of described switch cubicle, for receiving main bus-bar.It is usually three Root main bus-bar (U phase, V phase and W phase or A phase, B phase and C phase).Closed by bus room cover plate 1 above bus-bar room.Main bus-bar through Each cabinet bus-bar room, is installed by the corresponding corresponding cabinet of the labelling printing on bus during installation.
Handcart room B, described handcart room B is located at the anteriomedial of described switch cubicle, for receiving handcart.When handcart pushes, Valve mechanism curtain plate 14 will be made to open, and during handcart pull-out, valve mechanism curtain plate 14 will be closed.
Cable vault C, described cable vault C are located at the lower rear of described switch cubicle.In this compartment, generally installing electric current is mutual Sensor, spark gap (or overvoltage protection device), inlet wire or outlet cable, zero sequence current mutual inductor and earthed switch etc..Cable The arrangement of room will be described in more detail in preferred implementation later.
Relay control room D, described relay control room D are located at the front upper of described switch cubicle.Arrange in control room There are relay and terminal block, other control and protection unit being used for operating, observing, switch, instrument etc., be installed in this compartment On external door.
Fixed contact cover box 6, described fixed contact cover box 6 is arranged in described main bus-bar room A, has opening, and described opens Mouthful place is relative with described valve mechanism curtain plate 14, mentioned here with respect to, refer to opening towards described valve mechanism curtain plate 14, when When curtain plate is opened, the electric component on handcart can be inserted in described fixed contact cover box 6 by this opening, and with positioned at described Static contact 5 in fixed contact cover box 6 contacts.
Current transformer 7, it is located in described main bus-bar room A, and relative with described valve mechanism curtain plate 14.This will be rear It is described in detail in literary composition.
For the sake of security, during switch cubicle of the present utility model work, in order to ensure personal security, accidentally will prevent Cabinet door is opened, and this utility model is also provided with safety lock.
Fig. 3 is the use state schematic diagram of the safety lock according to an embodiment of the present utility model.Fig. 4 is in Fig. 3 The enlarged drawing of safety lock.
As shown in Figure 3 and Figure 4, described switch cubicle has cabinet door 20, and the width of described cabinet door is less than the width of described switch cubicle Degree, thus the side wall 21 of the side of described cabinet door and described switch cubicle forms step structure, the side of wherein said cabinet door with Above-below direction is installed with two pins, and side wall 21 front of described switch cubicle is installed with a pin with cap body Nail;Safety lock 25 is provided with described step structure, described safety lock 25 has into 90 degree of first side and second side, Described first side has two sliding trays corresponding with described two pins, so that described safety lock 25 can be upper and lower Slide, described second side has the first hole and second hole of Liang Ge UNICOM, described first hole with diameter greater than described cap body Diameter, the diameter in described second hole is less than the diameter of described cap body but is more than the diameter of the pin with described cap body;When described During safety lock 25 upward sliding, described first hole is aligned with described cap body such that it is able to unlock to cabinet door, and works as described safety lock During 25 slide downward, described second hole and described cap body to turning, thus cabinet door is locked.
The advantage of said structure is, the position of this safety lock is due to being in the corner of trapezium structure, so being not easy Touched by exterior object, thus preventing exterior object from accidentally opening cabinet door.Additionally, easy to operate, it is under gravity Automatically cabinet door can be locked, and power that need not be extra.This safety lock also has structure simple, with low cost, is suitable for extensive The advantage manufacturing.
Above-mentioned cabinet door 20 may be mounted at the front and/or rear of described switch cubicle.During operation, this cabinet door is forbidden to beat Open.
According to a preferred implementation of the present utility model, described housing is manufactured by aluminizing zinc steel plate, bolt-connection and Become, surface adopts electrostatic molding powder spray treatment.
According to a preferred implementation of the present utility model, described switch cubicle also includes hoisting board 12, and it is provided in The top of described switch cubicle, for being connected to lifting appliance when lifting by crane described switch cubicle.Boatswain chair 12 is preferably provided in dividing plate On 19 extended line, thus more firmly and reliable when handling.
According to a preferred implementation of the present utility model, described valve mechanism curtain plate 14 be up and down formula curtain plate or Convertible activity curtain plate.Up and down formula can be that this valve mechanism curtain plate 14 slides up and down along dividing plate, thus beating on an off Close;And convertible can be this valve mechanism curtain plate 14 pivoting, thus opening and closing, this mode is similar to shutter Form.Valve mechanism curtain plate can be backed down by handcart, or can be that handcart connects link gear, thus in handcart activity When drive being turned on and off of valve mechanism curtain plate.Valve mechanism curtain plate 14 can be using the work of any known or following exploitation Door mechanism.
Fig. 2 is the structural representation of the valve mechanism curtain plate according to an embodiment of the present utility model.With reference to Fig. 2 describes the valve mechanism curtain plate 14 of upset structure in detail.
As shown in Fig. 2 described valve mechanism curtain plate 14 includes first group of rectangle upset blade and second group of rectangle overturns leaf Piece, described first group of rectangle upset blade rotates around first axle 14-1, and described second group of rectangle upset blade is around the second axle 14-2 Rotation, described second axle 14-2 parallel with described first axle 14-1 and be located at described first axle below, wherein said first group with Second group of rectangle upset blade includes the equal multiple upset blades of quantity, and described first axle 14-1 is located at described first group of rectangle The top of the weight of each upset blade in upset blade, and described second axle 14-2 is located at described second group of rectangle upset blade In each upset blade center of gravity top.Although it is to be appreciated that first shown in Fig. 2 group and second group of rectangle reversion Between blade, there is gap, but this is used for the purpose of convenient viewing and understands, is suitably without space therebetween, or two Can be closed with insulant between person.
When handcart pushes, then can back down described upset blade, blade rotates around axle 14-1 and 14-2, thus handcart Contact head stretches into main bus-bar room A by this upset blade, and the first-class connection with stationary contact, and when handcart exits, due to trip shaft 14-1 and 14-2 is in the top of each blade center of gravity, therefore can ensure that each blade of guarantee is automatically extensive under gravity Arrive closed mode again, thus ensureing the safety of personnel.
Blade quantity of the present utility model is not limited to two or one or more.When every group include multiple During upset blade, due to being independent of each other between each upset blade, therefore only need to several upset leaves in some cases Piece overturns, and need not drive all of blade.Such beneficial effect is, under inspecting state, even if having touched some upsets Blade, because other upset blades do not overturn, so reduce the risk of electric shock.Secondly, if certain upset blade occurs Damage, then change this independent blade, need not all replace, which save cost, improve reliability.
According to a preferred implementation of the present utility model, described valve mechanism curtain plate 14 is in pass in its natural state Closed state.This advantageously ensures the safety of attendant.
According to a preferred embodiment of the present invention, there is electromotor control circuit and the switch cubicle of safety lock also includes Three main bus-bar grooves 4, described three main bus-bar grooves 4 are arranged on institute in the mode parallel and parallel to the ground with described dividing plate 19 State in the A of main bus-bar room, for receiving three main bus-bars respectively.It will be understood by those skilled in the art that the company of three main bus-bar grooves 4 Line can be arranged perpendicular to the ground, or three main bus-bar grooves can triangular in shape be arranged, and that is, these three main bus-bar grooves can be respective It is at three fixed points of specific triangles.
According to a preferred embodiment of the present invention, there is electromotor control circuit and the switch cubicle of safety lock also includes Draw branch bar 2 under three, respectively described three main lines are connected to described static contact.
According to a preferred embodiment of the present invention, there is electromotor control circuit and the switch cubicle of safety lock also includes Handcart 15, described handcart 15 includes pulley, the first moving contact and the second moving contact, can pass through described pulley in described handcart 15 Slide in and out described handcart room B, when described handcart 15 slides into described handcart room B, described valve mechanism curtain plate 14 is opened, from And described first moving contact is connected with described static contact 5, described second moving contact is connected with described current transformer 7;Described handss Car 15 is connected with described relay control room C also by plug connector 13.
According to a preferred embodiment of the present invention, there is electromotor control circuit and the switch cubicle of safety lock also includes Earth bus 10, it is arranged on the bottom of described cable vault C, is connected with described current transformer 7 by cable 8.
According to a preferred embodiment of the present invention, there is electromotor control circuit and the switch cubicle of safety lock also includes Earthed switch 9, it is arranged on the dividing plate 19 in described C, is connected with described current transformer 7;
According to a preferred embodiment of the present invention, there is electromotor control circuit and the switch cubicle of safety lock also wraps Include earthing switch operating mechanism 17, before and after it runs through described housing and parallel to the ground, described earthing switch operating mechanism 17 with Described earthed switch 9 is mechanically connected, to control the opening and closing of described earthed switch 9;
According to a preferred embodiment of the present invention, there is electromotor control circuit and the switch cubicle of safety lock also includes Little bus-bar room E, it is located above described relay control room D;
According to a preferred embodiment of the present invention, there is electromotor control circuit and the switch cubicle of safety lock also includes Secondary wire protection plate 18, is arranged on the lower front of described switch cubicle, and is separated with described handcart room B by horizontal baffle 16, Space within described secondary wire protection plate 18 is used for laying the cable introducing outside switch cubicle or from the extraction of described switch cubicle Cable.
According to a preferred embodiment of the present invention, there is electromotor control circuit and the switch cubicle of safety lock is further Including three insulating sheaths 3, it is separately positioned in described three main bus-bar grooves 4.Insulating sheath 3 helps to ensure that equipment and personnel Safety.
According to a preferred embodiment of the present invention, wherein, described handcart 15 can be circuit breaker cart, mutual induction of voltage One of device handcart, arrester handcart and isolation handcart.
According to a preferred embodiment of the present invention, wherein, described earth bus is through whole housing bottom Grounding copper bar.
According to a preferred embodiment of the present invention, wherein, adopt φ 6 copper rod inside described little bus-bar room, under cause On terminal in described relay control room D or switch.
According to a preferred embodiment of the present invention, wherein, the space in described secondary protection line plate and described cable Room separates or is combined into same space.
Fig. 5 shows according to the control circuit for motor of the present utility model.It is to be appreciated that for clearly showing that Control circuit and the annexation of miscellaneous part, the circuit shown in Fig. 5 further comprises miscellaneous part.
This control circuit includes, chopper 200, and described static contact 5 is connected with one end of described chopper 200, described disconnected The other end of road device 200 is connected with one end of described current transformer 7;Catalyst group 400, described current transformer 7 another End is connected with one end of described catalyst group 400;Thermorelay 600, the other end of described catalyst group 400 and described hot relay One end of device 600 connects;And second plug connector 500, it includes the second socket, described second socket and described thermorelay 600 other end connects.
Fig. 6 is the electrical connection schematic diagram according to the electromotor control circuit for low-tension switch cabinet of the present utility model. By Fig. 6, those skilled in the art can be better understood from how circuit of the present utility model is arranged, and between each part such as What connects.As shown in fig. 6, stating catalyst group (400) to include first contactor in parallel and second contactor.
It is to be appreciated that the term " connection " in this utility model includes and is directly connected to and is indirectly connected with.Directly connect Connect expression two there is not miscellaneous part between part or unit, and be indirectly connected with representing also exist between two parts one or Multiple miscellaneous parts.
Different working condition according to electromotor control circuit in low-tension switch cabinet and demand, open circuit of the present utility model Device 200 can be following situation:For the power of 30kW, the electric current of 60A, described chopper 200 is S3H160RM80 type;For The power of 37kW, the electric current of 72A, described chopper 200 is S3H160RM80 type;For the power of 45kW, the electric current of 85A, institute Stating chopper 200 is S3H160RM100 type;For the power of 55kW, the electric current of 105A, described chopper 200 is S3H160RM160 type;In the power of 75kW, the electric current of 140A, described chopper 200 is S3H250RM200 type;For 90kW's Power, the electric current of 170A, described chopper 200 is S5H400/320 type;For the power of 110kW, the electric current of 205A, described disconnected Road device 200 is S5H400/320 type;For the power of 132kW, the electric current of 245A, described chopper 200 is S5H400/320 type; For the power of 160kW, the electric current of 295A, described chopper 200 is S5H400/400 type;For the power of 200kW, 370A's Electric current, described chopper 200 is S5H630/630 type.
The chopper model being given in foregoing circuit is can to directly obtain from ABB AB, and because it is excellent Performance and preferably mate with this utility model and become preferred version.This utility model can also adopt other appropriate types Chopper.
In electrotechnics because can fast shut-off exchange and direct current major loop and can be frequently switched on and high current control electric The device on road, thus catalyst often apply to motor as control object it is also possible to make control shop equipment, electric heater, The electrical load such as machine-tool and various kinds electric power unit, catalyst can not only be switched on and off circuit, but also has low-voltage Release guard acts on.Catalyst control capability big it is adaptable to frequent operation and distant control.It is the weight in automatic control system Want one of element.
Different working condition according to electromotor control circuit in low-tension switch cabinet and demand, contact of the present utility model Device 400 can be following situation:For the power of 30kW, the electric current of 60A, described catalyst 400 is A75 type;For 37kW's Power, the electric current of 72A, described catalyst 400 is A75 type;For the power of 45kW, the electric current of 85A, described catalyst 400 is A95 type;For the power of 55kW, the electric current of 105A, described catalyst 400 is A110 type;For the power of 75kW, the electricity of 140A Stream, described catalyst 400 is A145 type;For the power of 90kW, the electric current of 170A, described catalyst 400 is A185 type;For The power of 110kW, the electric current of 205A, described catalyst 400 is A210 type;For the power of 132kW, the electric current of 245A, described Catalyst 400 is A260 type;In the power of 160kW, the electric current of 295A, described catalyst 400 is AF400 type;For 200kW's Power, the electric current of 370A, described catalyst 400 is AF400 type.
The catalyst model being given in foregoing circuit is can to directly obtain from ABB AB, and because it is excellent Performance and preferably mate with this utility model and become preferred version.This utility model can also adopt other appropriate types Catalyst.
The operation principle of thermorelay is to produce heat by the electric current flowing into thermal element, makes double gold of the different coefficients of expansion Belong to piece to deform upon, when deformation reaches certain distance, just promote connecting rod action, so that control circuit is disconnected, so that catalyst Dead electricity, main circuit disconnects, and realizes the overload protection of motor.Relay as the overload protection element of motor, with its volume Little, structure is simple, low cost and other advantages are widely applied aborning.
In this utility model, if power is less than 30kw, and/or electric current is less than 60A, then need not adopt thermorelay. And the different working condition according to electromotor control circuit in low-tension switch cabinet and demand, thermorelay of the present utility model 600 can be following situation:For the power of 30kW, the electric current of 60A, described thermorelay 600 is TA75DU63 type;For The power of 37kW, the electric current of 72A, described thermorelay 600 is TA75DU80 type;For the power of 45kW, the electric current of 85A, institute Stating thermorelay 600 is TA110DU90 type;For the power of 55kW, the electric current of 105A, described thermorelay 600 is TA110DU110 type;For the power of 75kW, the electric current of 140A, described thermorelay 600 is TA200DU150 type;For 90kW Power, the electric current of 170A, described thermorelay 600 be TA200DU175 type;For the power of 110kW, the electric current of 205A, institute Stating thermorelay 600 is TA450DU235 type;For the power of 132kW, the electric current of 245A, described thermorelay 600 is TA450DU310 type;For the power of 160kW, the electric current of 295A, described thermorelay (60) is TA450DU400 type;For The power of 200kW, the electric current of 370A, described thermorelay 600 is TA450DU400 type.
The thermorelay model being given in foregoing circuit is can to directly obtain from ABB AB, and because it is excellent Performance and preferably mate with this utility model and become preferred version.This utility model can also adopt other suitable classes The thermorelay of type.
The electromotor control circuit for low-tension switch cabinet that this utility model provides is applied to indoor installation low tension switch Cabinet, can easily be updated improving;Equipment runs persistence and reliability is higher, and ensure that the person of operator Safety.
The installation of the of the present utility model switch cubicle with electromotor control circuit and safety lock is described below.
The installation foundation of switch cubicle of the present utility model, typically will be divided into final grouting concrete.It is to lay out for the first time Closing cabinet installation steel component is angle steel, square steel or channel members installation foundation;Second placing concrete is the benefit on ground Fill layer (general thickness is 60mm).In placing concrete supplemental layers, the ground level that concrete is formed should be less than steel component Upper plane (i.e. equipment installed surface) 1~3mm.
When laying basic steel component, first straightening process should be carried out to component;It should be noted that height error, general steel when laying Plane flatness tolerance on component processed, every square metre should control within 1mm.
When switch cubicle is in single-row arrangement, installation foundation should ensure that and the front corridor of cabinet is advisable not less than 2.5 meters (minimum is not lower than 2 meters);During dually arrayed, between cabinet, width of corridor is typically no less than 2.8 meters.Maintenance channel after cabinet, at least should be able to freely open back door (convenient for installing, overhauling, as larger as possible).
Switch cubicle, in handling process, should use specific means of transport, such as crane or fork truck etc., forbid using crowbar, Cylinder etc., in order to avoid injury device.
Switch cubicle is transported to infield, by drawing or actual demands of engineering, with a certain cabinet body as benchmark, other cabinets It is close to successively, blending bolt is adjacent cabinet connection fastening.If row's equipment number of units more (more than 10), spell cabinet work Should start to carry out to two ends from middle part.If holding cabinet and between the walls apart from too small (less than the length of a section main bus-bar), end 1 to 2 cabinet body should after equipment main bus-bar pierces into, then carry out spell cabinet.
After the completion for the treatment of switch cubicle complete combination (assembled), available M12 bolt passes through the lower margin hole of equipment bay and basic steel Component is connected and fixed, or with being welded equipment and basic steel beam column firm welding.
Wear main bus-bar and connection main bus-bar with draw branch bar when, first that cabinet top main bus-bar room cover plate 1 is tight Fixing bolt unclamps, and sheds cover plate.
Bus wiped clean, mark according to the cabinet numbering printing on bus and mutually, successively main bus-bar is pierced into cabinet master Bus-bar room.By main bus-bar joint and main bus-bar with draw branch bar and be bolted fastening.
When bus has insulating requirements, at busbar shiplap joint head, adopt insulating boot box sealing cover;Laterally during bus button cover box, cover should be made Box latches in down, in order to avoid coming off.
When drawing cable outside connecting, by a cable in cable duct (or interlayer), the cable from cable vault's base plate goes out String holes stretches in cabinet, carries out after end by the height of bus wiring pile crown in cabinet, and cable is connected to bus wiring pile crown.Simultaneously End Boards wall is on the support in cabinet.
In connecting secondary cable, pull down the secondary wire protection plate 18 in left side in cabinet, the outside cable introducing or from this cabinet The cable drawn, all spaces in the backplate of left side are laid, and side wall has support to be used for fixing cable.By two after the completion of cable connection Secondary line backplate is reinstalled back in situ.
Figure below labelling
1. bus room cover plate
2. draw branch bar down
3. insulate sheath through walls
4. main bus-bar
5. static contact
6. fixed contact cover box
7. current transformer
8. cable
9. earthed switch
10. earth bus
11. little bus room cover plates
12. hoisting boards
13. secondary plugging-in elements
14. valve mechanism curtain plates
15. handcarts
16. horizontal baffles
17. earthed switch operations
18. secondary wire protection plates
It is to be appreciated that above only preferred implementation of the present utility model has been described in detail, but not Mean that protection domain of the present utility model is limited in disclosed description.For example, in this utility model, each compartment is permissible Exist independent of other compartments, and the arrangement of each compartment or setting can also exist independent of other compartments.This area skill Art personnel, according to the description above, the modification under without creative work, the present invention made, add and delete, each fall within this The protection domain of utility model.

Claims (7)

1. a kind of switch cubicle with electromotor control circuit and safety lock is it is characterised in that include:
Housing, described housing is cuboid;
Dividing plate (19), it is vertically installed in described switch cubicle, and described switch cubicle is divided into front and rear;
Valve mechanism curtain plate (14), it is arranged on described dividing plate, can open and close;
Main bus-bar room (A), described main bus-bar room (A) is located at the rear upper of described switch cubicle, for receiving main bus-bar;
Handcart room (B), described handcart room (B) is located at the anteriomedial of described switch cubicle, for receiving handcart;
Cable vault (C), described cable vault (C) is located at the lower rear of described switch cubicle;
Relay control room (D), described relay control room (D) is located at the front upper of described switch cubicle;
Fixed contact cover box (6), described fixed contact cover box (6) is arranged in described main bus-bar room (A), has opening, and described Opening is in described valve mechanism curtain plate (14) relatively;
Static contact (5), in described fixed contact cover box (6);
Current transformer (7), it is located in described main bus-bar room (A), and relative with described valve mechanism curtain plate (14);
Three main bus-bar grooves (4), described three main bus-bar grooves (4) are with the side parallel and parallel to the ground with described dividing plate (19) Formula is arranged in described main bus-bar room (A), for receiving three main lines respectively;
Draw branch bar (2) under three, respectively described three main lines are connected to described static contact;And
Handcart (15), described handcart (15) includes pulley, the first moving contact and the second moving contact, can lead in described handcart (15) Cross described pulley and slide in and out described handcart room (B), when described handcart (15) slides into described handcart room (B), described valve Mechanism's curtain plate (14) is opened, thus described first moving contact is connected with described static contact (5), described second moving contact and described electricity Current transformer (7) connects;Described handcart (15) is connected with described relay control room (C) also by plug connector (13);
Earth bus (10), it is arranged on the bottom of described cable vault (C), by cable (8) with described current transformer (7) even Connect;
Earthed switch (9), it is arranged on the dividing plate (19) in described (C), is connected with described current transformer (7);
Earthing switch operating mechanism (17), before and after it runs through described housing and parallel to the ground, described earthing switch operating mechanism (17) it is mechanically connected with described earthed switch (9), to control the opening and closing of described earthed switch (9);
Little bus-bar room (E), it is located above described relay control room (D);
Secondary wire protection plate (18), is arranged on the lower front of described switch cubicle, and by horizontal baffle (16) and described handcart (B) separates for room, and the internal space of described secondary wire protection plate (18) is used for laying the cable introducing outside switch cubicle or from described The cable that switch cubicle is drawn;
Described switch cubicle has cabinet door (20), and the width of described cabinet door (20) is less than the width of described switch cubicle, thus described cabinet The side of door (20) forms step structure with the side wall (21) of described switch cubicle, and the side of wherein said cabinet door (20) is with upper and lower Direction is installed with two pins, and side wall (21) front of described switch cubicle is installed with a pin with cap body;
Safety lock (25) is provided with described step structure, described safety lock (25) has into 90 degree of first side and second Side, described first side has two sliding trays corresponding with described two pins, so that described safety lock (25) Can slide up and down, described second side has the first hole and second hole of Liang Ge UNICOM, described first hole with diameter greater than institute State the diameter of cap body, the diameter in described second hole is less than the diameter of described cap body but straight more than the pin with described cap body Footpath;
When described safety lock (25) upward sliding, described first hole is aligned with described cap body such that it is able to solve to cabinet door (20) Lock, and when working as described safety lock (25) slide downward, described second hole and described cap body to turning, thus cabinet door (20) is locked;
Chopper (200), described static contact (5) is connected with one end of described chopper (200), described chopper (200) another One end is connected with the one end of described current transformer (7);
Catalyst group (400), the other end of described current transformer (7) is connected with one end of described catalyst group (400),
Thermorelay (600), the other end of described catalyst group (400) is connected with one end of described thermorelay (600);And
Second plug connector (500), it includes the second socket, and described second socket is connected with the other end of described thermorelay (600) Connect.
2. the switch cubicle with electromotor control circuit and safety lock according to claim 1 is it is characterised in that described work Door mechanism's curtain plate (14) includes first group of rectangle upset blade and second group of rectangle overturns blade, and described first group of rectangle overturns leaf Piece rotates around first axle (14-1), and described second group of rectangle upset blade rotates around the second axle (14-2), described second axle (14- 2) parallel with described first axle (14-1) and be located at below described first axle, wherein said first group and the upset of second group of rectangle Blade includes the equal multiple upset blades of quantity, and described first axle (14-1) is located at every in described first group of rectangle upset blade The top of the weight of individual upset blade, and described second axle (14-2) is located at each upset in described second group of rectangle upset blade The top of the center of gravity of blade.
3. the switch cubicle with electromotor control circuit and safety lock according to claim 1 is it is characterised in that described shell Body is manufactured by aluminizing zinc steel plate, and bolt-connection forms, and surface adopts electrostatic molding powder spray treatment.
4. the switch cubicle with electromotor control circuit and safety lock according to claim 1 is it is characterised in that described open Close cabinet and also include hoisting board (12), it is provided in the top of described switch cubicle, for being connected to when lifting by crane described switch cubicle Lifting appliance.
5. the switch cubicle with electromotor control circuit and safety lock according to claim 1 is it is characterised in that described work Door mechanism's curtain plate (14) is closed in its natural state.
6. the switch cubicle with electromotor control circuit and safety lock according to claim 1 is it is characterised in that described little Adopt φ 6 copper rod inside bus-bar room, under cause in described relay control room (D) terminal or switch on.
7. the switch cubicle with electromotor control circuit and safety lock according to claim 1 is it is characterised in that described connect Tentaculum group (400) includes first contactor in parallel and second contactor.
CN201620943615.2U 2016-08-25 2016-08-25 Cubical switchboard with motor control circuit and safety lock Active CN205985915U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publication Number Publication Date
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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109914930A (en) * 2019-01-24 2019-06-21 国网山东省电力公司日照供电公司 A kind of dynamic and static contact isolation baffle plate safety lock of switchgear and control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109914930A (en) * 2019-01-24 2019-06-21 国网山东省电力公司日照供电公司 A kind of dynamic and static contact isolation baffle plate safety lock of switchgear and control method

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