The compact-type low-voltage comprehensive distribution box that a kind of one side opens the door
Technical field
The utility model relates to a kind of distribution box, belongs to electrical network low-voltage distribution technical field.
Background technology
At present, in rural power grids, for urban power grid, because power consumption is less, electricity charge recovery time is long, does not generally configure intelligent monitoring terminal; Its inductive load is less simultaneously, and the device for local compensation electric network reactive-load, reduction line loss and energy loss is not set.Existing distribution box generally only consists of fuse and Aftercurrent protecting equipment.Along with economic development and growth in the living standard, the electrical equipment such as air-conditioning, refrigerator and motor are more and more general in rural area, cause the perceptual increased power in rural power grids, thereby cause voltage drop, energy loss and the equipment lower degradation problem of exerting oneself, may damage power consumption equipment when serious.In addition, after Aftercurrent protecting equipment action, need that personnel are on-the-spot to be overlapped, and the growth requirement of cutting payroll to improve efficiency due to electrical network, attendant is limited, is difficult to timely response, is unfavorable for the lifting of mains supply reliability.Therefore, configuration intelligent monitoring terminal, increase capacitance compensation are controlled function, become the inevitable demand of rural power grids development.
Utility model content
For solving the deficiencies in the prior art, the purpose of this utility model is to provide a kind of intelligent type comprehensive distribution box that possesses distribution, metering, reactive power compensation and long-distance intelligent control function.
In order to realize above-mentioned target, the utility model adopts following technical scheme:
The compact-type low-voltage comprehensive distribution box that a kind of one side opens the door, comprise casing, the Power entry module that is positioned at described casing and metering module that one side opens the door, the back side of described casing is near distribution transformer, it is characterized in that, described metering module comprises inlet wire copper bar, inlet wire cable, secondary device leading-in box, kilowatt-hour meter and metering current mulual inductor; Described metering current mulual inductor is socketed on described inlet wire copper bar; Described secondary device terminal box is all connected with the secondary line of described metering current mulual inductor with kilowatt-hour meter; Described Power entry module comprise residual current circuit breaker, fuse with for being connected the output branch road of load; Described residual current circuit breaker is connected with described inlet wire cable by busbar.
The compact-type low-voltage comprehensive distribution box that aforesaid a kind of one side opens the door, is characterized in that, also comprises reactive capacitance compensation module and with the monitor terminal of control panel; Described reactive capacitance compensation module is provided with switch with knifeshaped fuse and Intelligent capacitor; Described Intelligent capacitor is connected with described monitor terminal.
The compact-type low-voltage comprehensive distribution box that aforesaid a kind of one side opens the door, is characterized in that, described casing comprises left box body and right case; The front side of described left box body is provided with described Power entry module; The rear side of described left box body is provided with described reactive capacitance compensation module; Described right case is divided into top, centre and bottom, and top is provided with the inlet wire part of described Power entry module, and middle part is provided with described metering module, and bottom is provided with described monitor terminal.
The compact-type low-voltage comprehensive distribution box that aforesaid a kind of one side opens the door, is characterized in that, on the inlet wire part of described Power entry module and the circuit of free capacitance compensation module, is provided with lightning arrester.
The compact-type low-voltage comprehensive distribution box that aforesaid a kind of one side opens the door, is characterized in that, the both sides of described casing and top are provided with heat radiation fenestella.
The compact-type low-voltage comprehensive distribution box that aforesaid a kind of one side opens the door, is characterized in that, described lower box is provided with connecting hole.
The compact-type low-voltage comprehensive distribution box that aforesaid a kind of one side opens the door, is characterized in that, described residual current circuit breaker is provided with at most three tunnels.
The beneficial effect that the utility model reaches: this device is realized with the one of distribution transformer and being installed, save auxiliary and on-site installation work amount are installed, possess reactive power in-situ compensate function simultaneously, reduce the loss that circuit reactive current produces, saves energy, improves power supply economic benefit; Can remote monitoring power distribution station equipment operation condition, remote control residual current circuit breaker, with the safety of protective circuit; The oil temperature of Real-Time Monitoring transformer, carries out the management of transformer life cycle management.
Accompanying drawing explanation
Fig. 1 is the annexation block diagram of an embodiment of the present utility model;
Fig. 2 is the front view that removes door of this device;
Fig. 3 is the front view of casing band door of the present utility model.
The implication of Reference numeral in figure:
1-measures instrument transformer, 2-outlet copper bar, and 3-measures instrument transformer, 4-inlet wire copper bar, 5-lightning arrester, 6-monitor terminal.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection range of the present utility model with this.
The compact-type low-voltage comprehensive distribution box that one side opens the door, comprises the casing that one side opens the door.In casing, be provided with Power entry module, metering module, reactive capacitance compensation module and with the monitor terminal 6 of control panel.The back side of casing is near distribution transformer.
As shown in Figure 1, metering module comprises inlet wire copper bar 4, inlet wire cable, secondary device leading-in box, kilowatt-hour meter and metering instrument transformer 3.Metering instrument transformer 3 is socketed on inlet wire copper bar 4.Secondary device terminal box is all connected with the secondary line of metering instrument transformer 3 with kilowatt-hour meter.Inlet wire cable accesses from electrical network, the primary winding of metering instrument transformer 3 is socketed on inlet wire copper bar 4, secondary device terminal box and kilowatt-hour meter are connected on the secondary line of metering instrument transformer 3, wherein secondary device terminal box is used for connecting other secondary devices, both can play the effect of electric energy metrical, also play the effect of basement.
Power entry module comprise residual current circuit breaker, fuse with for being connected the output branch road of load.Residual current circuit breaker is connected with inlet wire cable by busbar.Residual current circuit breaker is provided with at most three tunnels, can protect electric leakage, and due to a plurality of residual current circuit breaker being set, also can prevent from, after single residual current circuit breaker from damaging, Power entry module is produced to hidden danger.
Reactive capacitance compensation module is provided with switch with knifeshaped fuse and Intelligent capacitor.Intelligent capacitor is connected with monitor terminal 6.Reactive capacitance compensation module forms based on Intelligent capacitor, and is controlled by 485 buses by monitor terminal 6.Intelligent capacitor connects the busbar of distribution box by switch with knifeshaped fuse, its electric current, voltage sample are provided by monitor terminal 6, and then controls Intelligent capacitor and carry out switching action.Adding of reactive capacitance compensation module can reduce the loss that circuit reactive current produces, and saves energy improves power supply economic benefit
Monitor terminal 6 is positioned at the lower right corner of casing, and it connects respectively residual current circuit breaker and Intelligent capacitor by 485 buses, realizes the coincidence of switch and control; The oil temperature sensor that connects distribution transformer by current sample terminal, obtains oil temperature and carries out distribution transformer status monitoring and service life assessment; By ac terminal, connect and measure instrument transformer 1 and bus, to obtain platform district real-time current, voltage data.
As Fig. 2, Fig. 3, casing comprises left box body and right case.The front side of left box body is provided with Power entry module, adopts positive assembling.The rear side of left box body is provided with reactive capacitance compensation module, and plug is from the side installed.Right case is divided into top, centre and bottom, the inlet wire part that top is Power entry module, and middle part is metering module, bottom is monitor terminal 6.On the inlet wire part of Power entry module and the circuit of free capacitance compensation module, be provided with lightning arrester 5.
Power entry module, metering module and reactive capacitance compensation module are equipped with and the panel of element are set and with the chamber door of door lock.Chamber door with door lock can finely be safeguarded the equipment in casing, adopts the cabinet lock of 3 integral switchs.In addition, casing both sides can also be provided with heat radiation fenestella, under top cover of box, along one week louvre is set, form good cross-ventilation, and the equipment in case can finely be dispelled the heat, and guarantee useful life.Lower box is provided with connecting hole, for turnover and the connection of circuit.
The cabinet shell of this device and internal unit framework two parts are relatively independent, can integral body push in cabinet shell, thereby complete assembling after equipment installs on framework, alleviate assembly difficulty.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvement and distortion, these improvement and distortion also should be considered as protection range of the present utility model.