CN204732689U - A kind of low-voltage customer load control casing - Google Patents
A kind of low-voltage customer load control casing Download PDFInfo
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- CN204732689U CN204732689U CN201520287011.2U CN201520287011U CN204732689U CN 204732689 U CN204732689 U CN 204732689U CN 201520287011 U CN201520287011 U CN 201520287011U CN 204732689 U CN204732689 U CN 204732689U
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- cabinet
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Abstract
The utility model discloses a kind of low-voltage customer load control casing, front cabinet door (2) and rear cabinet door (3) are all provided with sealed in unit, cabinet (1) seals by sealed in unit, top in Over-The-Counter (4) is provided with main bus bar (7), side in Over-The-Counter (4) is provided with support (8), support (8) is connected with Up Highway UHW folder (9), Up Highway UHW folder (9) is connected with some vertical buses (10), electric power meter (11) and load control unit (12) is provided with in middle cabinet (5), frame-type circuit breaker (13) is provided with in lower cabinet (6), electric power meter (11) is connected by the input of control line I with load control unit (12), the output of load control unit (12) is connected with the output of frame-type circuit breaker (13) by control line II, some current transformers (14) are distributed with in base cabinet (7).
Description
Technical field
The utility model relates to a kind of low-voltage customer load control casing.
Background technology
Power load control equipment is the technological means carrying out load prediction, spatial load forecasting and peak shifting and averting, and can realize customer charge field monitoring, improves power consumption efficiency, and issuing power supply information etc., is the necessary means of electricity needs.Therefore, power load management system of having only had user to fill, really could accomplish ordered electric, the electricity consumption of guarantee living standard of urban and rural population, accomplishes " shut down and do not stop line ".If the load of user exceedes index, load control unit will sound and light alarm, does not drop to set point at 5 minutes internal loadings, load control unit will start first round tripping operation, after the first round tripped, if load does not also drop to below desired value in 5 minutes, the 2nd takes turns tripping operation starts.In when section in office, as long as below load restoration to index, electricity consumption of can closing a floodgate; But once electricity consumption beyond target after closing a floodgate, said sequence tripping operation is pressed in continuation by load control unit.In addition, load control unit can be monitored electric energy meter situation in metering cabinet simultaneously, and supervise user to pay the electricity charge, if desired, preferential applied load control device takes margining electric method to defaulting subscriber on schedule.For current common low-voltage distribution scheme (), First metering cabinet is loaded in same cabinet by gauge table Wh, metering instrument transformer TA, and this cabinet specific constructive form refers to general assembly drawing ().An installing main breaker QF in second total cabinet of inlet wire, load control unit installing and metering cabinet side.This scheme of electric power has following three subject matters: (1) electric company wants to realize by surface control line between load control unit and total cabinet, thus to realize the control to the total cabinet breaker of subscriber's drop under user's excess load or subscriber arrearage situation to the management and control of low-voltage customer load by load control unit.But under this control mode, user can pull down or destruct limit cable easily privately, make electric company cannot realize carrying out effective management and control to customer charge.(2) adopt open-wire line to lay between gauge table and load control unit, user can remove wiring without authorization, and shining into power supply department to the understanding of the actual electricity consumption situation of user, thus cannot cause the uncontrollable of customer charge terminal.(3) under this kind of version, user also can adjust the setting current value of the total cabinet breaker of inlet wire easily, and switch then may lose due protection and metering function.
Summary of the invention
The utility model provides a kind of low-voltage customer load control casing, and it not only controls customer charge effectively, and practical, be easy to safeguard, ensure that the controllability of negative control terminal simultaneously.
The utility model have employed following technical scheme: a kind of low-voltage customer load control casing, it comprises cabinet, the front side of cabinet and rear side are respectively equipped with front cabinet door and rear cabinet door, front cabinet door and rear cabinet door are all provided with sealed in unit, cabinet seals by sealed in unit, Over-The-Counter is distributed with successively from top to bottom in the inside of cabinet, middle cabinet, lower cabinet and base cabinet, top in Over-The-Counter is provided with main bus bar, side in Over-The-Counter is provided with support, support is connected with Up Highway UHW folder, Up Highway UHW folder is connected with some vertical buses, electric power meter and load control unit is provided with in middle cabinet, electric power meter is distributed in the left side of middle cabinet, load control unit is distributed in the right side of middle cabinet, frame-type circuit breaker is provided with in lower cabinet, electric power meter is connected with the input of load control unit by control line I, the output of load control unit is connected with the output of frame-type circuit breaker by control line II, electric power meter is used for user and measures power usage and power usage is flowed to load control unit, load control unit controls according to the break-make of power usage to frame-type circuit breaker, some current transformers are distributed with in base cabinet, the top of some vertical buses presss from both sides with Up Highway UHW and is connected, the remainder of some vertical buses is from top to bottom connected with frame-type circuit breaker and some current transformers successively, front end bottom base cabinet is provided with zero bus, the Down Highway that is provided with bottom base cabinet presss from both sides mounting rail, Down Highway folder mounting rail is provided with Down Highway folder, Down Highway folder is provided with some horizontal buses, some horizontal buses are connected with the lateral attitude of some current transformers.
Described front sealed in unit is set to sealing device.Described front cabinet door is provided with transparent supervision frame and action pane, and transparent supervision frame is corresponding with electric power meter, and action pane is corresponding with load control unit.Described frame-type circuit breaker is set to the intellectual frame circuit breaker of zero arcing.Described cabinet is set to the fixed cabinet of low pressure or draw out switchgear cabinet.The upper and lower of described cabinet is distributed with louvre.The rear portion of described cabinet is distributed with three rear cross beams from top to bottom.In described lower cabinet, vertical direction is provided with connecting plate, and frame-type circuit breaker is fixedly mounted on connecting plate.Described Up Highway UHW sandwiched is set to combination-type bus-bar clamp, and Down Highway sandwiched is set to combination-type bus-bar clamp.
The utility model has following beneficial effect: after have employed above technical scheme, the utility model will count electric power meter, load control unit, frame-type circuit breaker summation current transformer is installed in same cabinet, front cabinet door and rear cabinet door are all provided with sealed in unit, cabinet seals by sealed in unit, control line between such load control unit to circuit breaker is closed in metering cabinet inside, user cannot change this wiring or remove, therefore load control unit is at subscriber arrearage, can to the control of this cabinet inner breaker in the situation such as to ration the power supply of avoiding the peak hour, in addition, between electric power meter to load control unit, control line is also closed in cabinet inside, user cannot change this wiring or remove, prevent from artificially destroying this part, therefore power supply department also can continual grasp customer charge situation, carrying out for spatial load forecasting provides data basis.The utility model front cabinet door is provided with transparent supervision frame and action pane; transparent supervision frame is corresponding with electric power meter; action pane is corresponding with load control unit; such user only with by the total cabinet breaker of action pane operation inlet wire on cabinet door deciliter; and switching current value can not be adjusted without authorization, thus ensure that the protection of switch and the effect of current limliting.Only the needing of load control casing breaker in middle setting current size considers the normal disjunction of short-circuit conditions, and action under overload, short-circuit conditions is then responsible for by the total cabinet switch of inlet wire.In addition, load control casing breaker in middle does not need to be with under-voltage function, like this when sending a telegram in reply after outer net has a power failure, do not need again this cabinet breaker in middle to be closed a floodgate again, do not increase power transmission program, the utility model cabinet is set to the fixed cabinet of low pressure or draw out switchgear cabinet, and the local welding of framework 8MF cold-rolled forming section assembles, and having the installing hole of 20 moulds, such UNIVERSAL COEFFICIENT is high.The upper and lower of the utility model cabinet is distributed with louvre, and when after electric elements heating in cabinet, heat rises, discharged by upper end slotted eye, and cold wind constantly supplements into cabinet by lower end slotted eye, make the cabinet of sealing form a natural ventilation channel from bottom to top, reach the object of heat radiation.The utility model frame-type circuit breaker is set to the intellectual frame circuit breaker of zero arcing, and it is strong that it has short circuit breaking capacity, and Control protection is accurately high, steady performance.
Accompanying drawing explanation
Fig. 1 is left side structure schematic diagram of the present utility model.
Fig. 2 is rear structure schematic diagram of the present utility model.
Fig. 3 is external structure schematic diagram of the present utility model.
Fig. 4 is the A-A cutaway view of Fig. 3.
Fig. 5 is the structural representation of the utility model connecting plate.
Fig. 6 is the main circuit diagram in the utility model cabinet.
Embodiment
At Fig. 1, Fig. 2, Fig. 3, Fig. 4, in Fig. 5 and Fig. 6, the utility model provides a kind of low-voltage customer load control casing, it comprises cabinet 1, cabinet 1 is set to the fixed cabinet of low pressure or draw out switchgear cabinet, the rear portion of cabinet 1 is distributed with three rear cross beams 21 from top to bottom, the upper and lower of cabinet 1 is distributed with louvre, the front side of cabinet 1 and rear side are respectively equipped with front cabinet door 2 and rear cabinet door 3, front cabinet door 2 and rear cabinet door 3 are all provided with sealed in unit, cabinet 1 seals by sealed in unit, described front sealed in unit is set to sealing device, Over-The-Counter 4 is distributed with successively from top to bottom in the inside of cabinet 1, middle cabinet 5, lower cabinet 6 and base cabinet 7, top in Over-The-Counter 4 is provided with main bus bar 7, side in Over-The-Counter 4 is provided with support 8, support 8 is connected with Up Highway UHW folder 9, Up Highway UHW folder 9 is connected with some vertical buses 10, pressing from both sides on 9 at Up Highway UHW of the present embodiment is connected with four vertical buses 10, electric power meter 11 and load control unit 12 is provided with in middle cabinet 5, electric power meter 11 is distributed in the left side of middle cabinet 5, load control unit 12 is distributed in the right side of middle cabinet 5, described front cabinet door 2 is provided with transparent supervision frame 19 and action pane 20, transparent supervision frame 19 is corresponding with electric power meter 11, action pane 20 is corresponding with load control unit 12, frame-type circuit breaker 13 is provided with in lower cabinet 6, frame-type circuit breaker 13 is set to the intellectual frame circuit breaker of zero arcing, electric power meter 11 is connected with the input of load control unit 12 by control line I, the output of load control unit 12 is connected with the output of frame-type circuit breaker 13 by control line II, electric power meter 11 measures power usage for user and power usage is flowed to load control unit 12, load control unit 12 controls according to the break-make of power usage to frame-type circuit breaker 13, four current transformers 14 are distributed with in base cabinet 7, four current transformers 14 are spaced apart, top and the Up Highway UHW of four vertical buses 10 press from both sides 9 and are connected, the remainder of four vertical buses 10 is from top to bottom connected with frame-type circuit breaker 13 and four current transformers 14 successively, front end bottom base cabinet 7 is provided with zero bus 15, the Down Highway that is provided with bottom base cabinet 7 presss from both sides mounting rail 16, Down Highway folder mounting rail 16 is provided with Down Highway folder 17, Down Highway folder 17 is provided with some horizontal buses 18, the Down Highway folder 17 of the present embodiment is provided with three horizontal buses 18, three horizontal buses 18 are connected with the lateral attitude of four current transformers 14, in described lower cabinet 6, vertical direction is provided with connecting plate 22, frame-type circuit breaker 13 is fixedly mounted on connecting plate 22, described Up Highway UHW folder 9 is set to combination-type bus-bar clamp, Down Highway folder 17 is set to combination-type bus-bar clamp.Active power meter 23, ammeter 24 is provided with, button 25, signal lamp 26, label frame 27, change over switch 28, voltmeter 29 and power factor meter 30. on the top of front cabinet door
A, environment for use condition of the present utility model
(1) ambient air temperature is not higher than+40 DEG C, is not less than-10 DEG C.Mean temperature in 24h is not higher than+35 DEG C.
(2) indoor installation uses, and the height above sea level of place to use must not more than 2000m.
(3) air cleaner, atmospheric conditions relative humidity is no more than 50% in maximum temperature for when+40 DEG C, allow larger relative humidity when lower temperature, (such as+20 DEG C time be 90%) should be taken into account that the change due to temperature accidentally may produce the impact of condensation.
(4) when equipment is installed and the gradient of vertical plane be no more than 5%.
(5) class of pollution 3.Installation site should without pernicious gas, steam, conductivity or explosive dust.
(6) equipment should be arranged on the place without strenuous vibration, and the place that deficiency makes electric elements be corroded.
(7), when user has particular/special requirement or above-mentioned service condition not to meet, should resolve through consultation with manufactory.
B, important technological parameters of the present utility model (see table 1)
Table 1
Project | Unit | Numerical value |
Rated operational voltage | V | AC380V(50Hz) |
Nominal insulation voltage | V | AC690V |
Rated current (horizontal bus) | A | ≤1500 |
Specified short time withstand current (1s) | KA | 30 |
Rated peak withstand current | KA | 63 |
Main switch disjunction energy | KA | 50 |
Degree of protection | IP30 |
C, operating instruction of the present utility model
1, power transmission operation
(1) low-voltage load control cubicle is transported to job site and should first tests by commissioning test requirement, to be tested qualified after can carry out the working procedures such as spelling cabinet, fixing, ground connection, test.
(2) gauge table is taken into account load control terminal and is loaded in before control cubicle cabinet in door by power supply department, and by connecting measurement meter about construction specification requirement to the line between load control unit, load control unit to low pressure frame switch.
(3) breaking operation is carried out to low pressure frame switch, and respectively distant service position proceeded to frame switch, shake out and operate 2 times to test position, with the flexibility of test mechanism, finally proceed to service position by distant for frame switch.
(4) by power supply department requirement, control cubicle inner frame switching current protection value is adjusted.
(5) power supply department expensive to spatial load forecasting on all lead sealings be locked into quadrat envelope, after carrying out safety measure, operate switch knob on instrument door by power supply department requirements and carry out power transmission operation.
2, power failure operation
(1) opening button on operation instrument door is only needed when having a power failure, by load control casing middle frame switch separating brake.
(2) when need overhaul load control casing low-voltage distribution cabinet below, the isolation switch on user's total input-wire switch cubicle need being pulled open, when confirming in cabinet without electricity, entering maintenance in cabinet.
(3) user need overhaul when low-voltage load controls and answer prior notice power supply department, by outdoor pole top switch (or fuse device) disjunction, pulls open outdoor disconnecting link.
User in use forbids to remove without authorization any sealing device on this load control casing and operates, and when finding that this control cubicle has abnormal conditions, after taking necessary stringent effort, should contact power supply department in time and do further process.
D, the utility model inspection and maintenance
Inspection and maintenance work should comprise following content, but should not be limited to following content!
1, to there being dust, fiber environment should make regular check on maintenance.Inspection, cleaning, maintenance were had a power failure once to load control casing at least every six months.The power failure scope of examination is as follows:
(1) operating mechanism and the controlling organization of switch is checked, interlocking, protection, warning and other device; At normal electrical pressing operation, there are not abnormal conditions in equipment.As: abnormal sound, peculiar smell or the arc light when dark.
(2) check and electrically connect (as busbar) with or without superheating phenomenon (opening the range estimation of cabinet door), available infrared radiation thermometer with good conditionsi detects.Parts need be changed in time when system shows other damage or be overheated.
(3) annex of all load control casings and auxiliary equipment is checked;
(4) surface of careful clean load control casing particularly insulating part, when finding that there are greasy dirt, mouldy, dust in its surface, need clear the pollution off with dry soft cloth, put on the skin wipe clean.
(5) check that whether the bolt of loop connection and grounding connection is fastening.
2, daily examination and maintenance should follow the relevant regulations of power supply department.
E, the utility model transport and deposit
1, to dispatch from the factory condition:
After guaranteeing that all working all completes, install relevant criterion and carry out exfactory inspection, structure function meets the requirements, and can carry out packing or depositing.
2 packagings:
The transport of load control casing must take different packing methods according to the difference of transportation condition.Indivedual occasion does not need packaging, can optionally and with colour bar cloth or wooden-box package.
3 liftings and transport:
Load control casing has four hoisting rings, selects suitable drop hanger and the handling of lifting rope crane, fork truck or hand jack.The property loss noted protection personal safety and may cause, Keep upright.Automobile Transportation.
4 delivery and intermediate storage:
(1), after goods to scene, should check as follows:
Check whether Short Item or traffic-induced damage according to packing slip, and provide a certificate to consignor or conveyer;
Check that whether load control casing is intact, whether make moist.Preferably broken parts is photographed.
(2) optimum intermediate storage condition: (minimal condition according to required by switch cubicle and element)
Only need simple packaging or do not need packaging;
Dry and draughty storeroom, indoor temperature is not less than-5 DEG C, and air quality is according to correlation standard;
There is no the impact of other damaging conditions;
Vertical display switchgear, can not stack, and guarantees that switch cubicle aeration is good;
Before installation and operation, regularly carry out necessary inspection.
F, the utility model in-site installation
The in-site installation of low-voltage load control cubicle need guarantee correct erection sequence and high quality standards.Packaging is opened by experienced operator, requires that having a responsibility for people at the scene carries out inspection and guide.
1, field requirement:
Need before installation to check installation site, the regulation of relevant criterion should be met.Power distribution room must have lighting apparatus and on-the-spot temporary power, door lock, room is dry and have ventilation equipment; Preparation is as ready in secondary cable pipeline etc.
2, product is installed:
(1) load control casing should enter indoor when upright.
(2) installation of product should be carried out with reference to primary system figure and the system layout location drawing.Basis channel-section steel and bolt are provided for oneself by user.Load control casing and the position correct on basis of low-tension switch cabinet be in line (vertical direction installs unevenness must not more than 2mm, especially above) and be bolted together.When all cabinets are fully assembled, itself and basic framework link together by available screw or welding.
(3) faying surface should be repaired when main bus bar is installed smooth, process is clean, coat neutral vaseline or take other measure then to use bolted.Busbar is connected with the screw rod of 8.8 grades of pulling force.
(4) detailed correlation technique file need be consulted to the torque value (such as contact system and switch endpoint) that some depart from general rule.
(5) cabinet is followed according to design drawing connecting secondary interconnection by professional after installing or is installed associated components: as bus bridge frame etc.
3, product needs inspection and the test of carrying out following project before putting into operation after installing:
Check that cabinet finish paint is with or without coming off, whether dry in cabinet, remove all foreign material in cabinet;
Check that bolt has non-loosening, especially in busbar and grounding system, tighten if desired;
Whether the operating mechanism of electric elements is flexible, and do not have clamping stagnation or the excessive phenomenon of operating physical force;
Major electrical equipment element, the contact of circuit, the break-make of auxiliary contact whether reliable accurately, meet paper figure requirement.
Whether no-load voltage ratio and the polarity of instrument instruction and instrument transformer is correct;
Whether bus connects good, insulated support installed part and annex whether solid and reliable;
Whether auxiliary contact meets the requirements, and whether the fusible core specification of fuse is correct, and whether whether the setting value of relay meets designing requirement action accurate;
Must not lower than 1M Ω by 1000V measurement insulation resistance by megger value.
G, the utility model field adjustable
Field adjustable must have the professional institution of qualification that has of power supply department or its accreditation to carry out, and also manufacturer can be submitted to dispatch officers to participate in field adjustable by user! Or the professional that electrician operates card that holds of power supply department accreditation carries out.
Claims (9)
1. a low-voltage customer load control casing, it is characterized in that it comprises cabinet (1), the front side of cabinet (1) and rear side are respectively equipped with front cabinet door (2) and rear cabinet door (3), front cabinet door (2) and rear cabinet door (3) are all provided with sealed in unit, cabinet (1) seals by sealed in unit, Over-The-Counter (4) is distributed with from top to bottom successively in the inside of cabinet (1), middle cabinet (5), lower cabinet (6) and base cabinet (7), top in Over-The-Counter (4) is provided with main bus bar (7), side in Over-The-Counter (4) is provided with support (8), support (8) is connected with Up Highway UHW folder (9), Up Highway UHW folder (9) is connected with some vertical buses (10), electric power meter (11) and load control unit (12) is provided with in middle cabinet (5), electric power meter (11) is distributed in the left side of middle cabinet (5), load control unit (12) is distributed in the right side of middle cabinet (5), frame-type circuit breaker (13) is provided with in lower cabinet (6), electric power meter (11) is connected by the input of control line I with load control unit (12), the output of load control unit (12) is connected with the output of frame-type circuit breaker (13) by control line II, electric power meter (11) measures power usage for user and power usage is flowed to load control unit (12), load control unit (12) controls according to the break-make of power usage to frame-type circuit breaker (13), some current transformers (14) are distributed with in base cabinet (7), the top of some vertical buses (10) presss from both sides (9) and is connected with Up Highway UHW, the remainder of some vertical buses (10) is from top to bottom connected with frame-type circuit breaker (13) and some current transformers (14) successively, zero bus (15) is provided with in the front end of base cabinet (7) bottom, mounting rail (16) is pressed from both sides at the Down Highway that is provided with of base cabinet (7) bottom, Down Highway folder mounting rail (16) is provided with Down Highway folder (17), Down Highway folder (17) is provided with some horizontal buses (18), some horizontal buses (18) are connected with the lateral attitude of some current transformers (14).
2. low-voltage customer load control casing according to claim 1, is characterized in that described front sealed in unit is set to sealing device.
3. low-voltage customer load control casing according to claim 1, it is characterized in that described front cabinet door (2) is provided with transparent supervision frame (19) and action pane (20), transparent supervision frame (19) is corresponding with electric power meter (11), and action pane (20) is corresponding with load control unit (12).
4. low-voltage customer load control casing according to claim 1, is characterized in that described frame-type circuit breaker (13) is set to the intellectual frame circuit breaker of zero arcing.
5. low-voltage customer load control casing according to claim 1, is characterized in that described cabinet (1) is set to the fixed cabinet of low pressure or draw out switchgear cabinet.
6. low-voltage customer load control casing according to claim 1, is characterized in that the upper and lower of described cabinet (1) is distributed with louvre.
7. low-voltage customer load control casing according to claim 1, is characterized in that the rear portion of described cabinet (1) is distributed with three rear cross beams (21) from top to bottom.
8. low-voltage customer load control casing according to claim 1, it is characterized in that described lower cabinet (6) interior vertical direction is provided with connecting plate (22), frame-type circuit breaker (13) is fixedly mounted on connecting plate (22).
9. low-voltage customer load control casing according to claim 1, it is characterized in that described Up Highway UHW folder (9) is set to combination-type bus-bar clamp, Down Highway folder (17) is set to combination-type bus-bar clamp.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201520287011.2U CN204732689U (en) | 2015-05-06 | 2015-05-06 | A kind of low-voltage customer load control casing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201520287011.2U CN204732689U (en) | 2015-05-06 | 2015-05-06 | A kind of low-voltage customer load control casing |
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Publication Number | Publication Date |
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CN204732689U true CN204732689U (en) | 2015-10-28 |
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CN201520287011.2U Expired - Fee Related CN204732689U (en) | 2015-05-06 | 2015-05-06 | A kind of low-voltage customer load control casing |
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Country | Link |
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CN (1) | CN204732689U (en) |
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2015
- 2015-05-06 CN CN201520287011.2U patent/CN204732689U/en not_active Expired - Fee Related
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