CN201035075Y - EDA9133 synthetic electric power monitoring instrument - Google Patents

Abstract

The utility model discloses an EDA9133 integrated electrical supervising instrument, which is composed of a bottom shell (1), an upper cover (2), a multi-function integrated circuit board (3), a wire holder of each parameter input end (4), a wire holder of each parameter output end (5), a current sensing coil (6), the utility model is characterized in that three semicircular installing shells (9) of the current sensing coil which are raised forth are arranged on the upper cover (2), a liquid crystal screen (13) is arranged on the middle and lower part of the upper cover (2), the display circuit board (14) is installed and fixed on the internal side of the upper cover (2), and is connected with the corresponding connector (16) on the multi-function integrated circuit board (3) through a liquid crystal display connection-peg (15). The EDA9133 integrated electrical supervising instrument, not only has the advantages of complete function, reducing cost, but also has the advantages of convenient connection, simple installing operation, directly examining parameter on field.

Description

The EDA9133 synthesis electrical supervising instrument

Technical field

The utility model relates to a kind of improvement of electrical parameters detection transmitter, particularly a kind ofly make things convenient for wiring, make things convenient for the scene to check various electrical quantitys, flexible for installation, the EDA9133 synthesis electrical supervising instrument that makes things convenient for the client to use, be applicable to that distributed power system monitoring, comprehensive automation system of transformer substation, unattended operation transformer station, low-voltage intelligent distribution system, intelligent box become and building automation system etc.

Technical background

In various automation control systems, all need comprehensive electrical quantity is detected, the original signal of these comprehensive electrical quantitys has 6, comprise Ua, Ub, Uc, la, lb, lc, can calculate more than 40 electrical quantity in view of the above, wherein common as phase voltage (Ua, Ub, Uc), line voltage (Uab, Ubc, Uca), the Voltage unbalance degree, electric current (Ia, Ib, Ic), zero-sequence current (Io), active power (P), reactive power (Q), applied power (S), power factor (Cos Φ), each phase active power (Pa, Pb, Pc), each phase reactive power (Qa, Qb, Qc), each phase applied power (Sa, Sb, Sc), each phase power factor (Cos Φ a, Cos Φ b, Cos Φ c), frequency (F), (+KWh is total for forward and reverse active energy,-KWh is total), (+KVarh is total for forward and reverse reactive energy,-KVarh is total), harmonic content, 1～31 order harmonic components and phase place, K Q factor (Ua, Ub, Uc, Ia, Ib, lc) etc.Used detecting instrument has multiple at present, comprise current transducer, voltage transmitter, the active power transmitter, the reactive power transmitter, power factor transmitter and electric parameters transducer, these transmitters have two parts to constitute mostly, a part is a Sensor section, another part is the detection calculations part, promptly obtain light current from strong alternating current loop with sensor earlier and press signal, after shaping is amplified respectively, measure its cycle and voltage by computing machine, phase differential between the electric current, with the output of parameter signal standard, with analog quantity input detection calculations module, convert parameter value to digital signal again, insert microcomputer again, these transmitter functions are single, need distinguish a plurality of parameters and set a plurality of transmitters separately, therefore, structure is messy, complicated, use inconvenient, its sensor is a plug-in type, the wiring inconvenience, and do not have on-the-spot Presentation Function, various parameters are checked at the scene of influence, and the fixed installation of base is also inconvenient in addition.

Summary of the invention

The purpose of this utility model be to provide a kind of not only multiple functional, cost is low, and easy to use, wiring easily, carry liquid crystal display, make things convenient for the EDA9133 synthesis electrical supervising instrument of field observation.

For reaching above purpose, the technical scheme that the utility model adopted is: this EDA9133 synthesis electrical supervising instrument, by drain pan, loam cake, the multifunctional integrated circuit plate, each parameter input end junction block, each parameter output terminal junction block, the current sense coil constitutes, the multifunctional integrated circuit plate is installed in drain pan inside, the current sense coil is established three, by connecting in the respective socket on the current sense coil plug insertion multifunctional integrated circuit plate, it is characterized in that establishing three semi-circular current sensing coil mounting shells to outer lug on the top of loam cake, through hole is established at center at semi-circular current sensing coil mounting shell, three semi-circular current sensing coil mounting shells are staggered, middle and lower part at loam cake is provided with LCDs, display circuit board is fixed on the loam cake inboard, and be connected with corresponding plug socket on the multifunctional integrated circuit plate by the liquid crystal display connection-peg, establish gum cover in the central through hole of semi-circular current sensing coil mounting shell, the current lead that gum cover inserts on the current sense coil penetrates in the hole.The utility model is also implemented by following measure: its each parameter input end junction block and each parameter output terminal junction block and multifunctional integrated circuit plate end are one in succession; Fixed card slot is established at base plate face middle part at drain pan, and is provided with plug-type locking plate; Three semi-circular current sensing coil mounting shells all with the loam cake one-shot forming in an integral body; Circuit on the multifunctional integrated circuit plate comprises: measurement, demonstration, control, interface and power unit are formed, one side of each the parameter input end junction block on the multifunctional integrated circuit plate comprises that input 0～600V and advance signal treatment circuit partly constitute, comprise 0-5A and advance signal treatment circuit part at the last current sense coil that covers, module is therefrom obtained multiple real time datas such as voltage, electric current, frequency; Adopt high-quality liquid crystal (LCD) display module in the last LCDs that covers, every screen can show the figure of 8 * 4 Chinese characters (16 * 16) or 128 * 64 pixels; Microcontroller is a core with the LPC2132 single-chip microcomputer, is equipped with 6 road A/D conversion, and peripheral function possesses relay output, switching value Input Monitor Connector, 4～20mA output, electrical energy pulse output etc.; Communication interface adopts half-duplex RS 485 interfaces, is used for transmitting measurement data in real time to host computer; Power supply and processing, communication, control section are isolated fully, maximum realization safe, and this structure is a known technology, so seldom describe.Software is mainly realized data processing such as measurement data is calculated, inner parameter calculates, electric energy adds up, maximum (little) value, it also is known technology, because the software amount is big, function is complicated, so program adopted advanced programming theory, and function modoularization, architectureization, task are oversimplified.Do like this and have multiple advantage: program maintenance is simple, clear process is clear, response speed is fast.When using the utility model, three-phase circuit IC, IB, IA pass the gum cover in the central through hole on three current sense coil mounting shells respectively, connect load again, and three road voltages are drawn UC, UB, UA voltage separated time on the three-phase circuit after pass, insert each parameter input end junction block together with UGND, after detection is handled through the multifunctional integrated circuit plate, insert seated connection from each parameter output terminal and go into microcomputer.

Advantage of the present utility model is: compare with the multi-functional transmitter of present application, not only have advantage multiple functional, that reduce cost, but also have the advantage that easy-to-connect, fitting operation are simple, can directly check parameter at the scene.

Description of drawings

Fig. 1 cuts open synoptic diagram for the utility model structure master office of looking.

Fig. 2 is the utility model loam cake elevational schematic view.

Fig. 3 is the utility model drain pan schematic top plan view.

Fig. 4 is the utility model drain pan elevational schematic view.

Fig. 5 is the utility model circuit function principle frame road.

Fig. 6 has provided the embodiment of connecting circuit schematic diagram when the utility model is used for the high pressure three-phase and four-line.

Embodiment

Make the utility model with reference to accompanying drawing 1,2,3,4,5.This EDA9133 synthesis electrical supervising instrument, by drain pan 1, loam cake 2, multifunctional integrated circuit plate 3, each parameter input end junction block 4, each parameter output terminal junction block 5, current sense coil 6 constitutes, multifunctional integrated circuit plate 3 is installed in drain pan 1 inside, current sense coil 6 is established three, by connecting in the respective socket 8 on the current sense coil plug 7 insertion multifunctional integrated circuit plates 3, establish three semi-circular current sensing coil mounting shells 9 to outer lug on the top of loam cake 2, through hole 10 is established at center at semi-circular current sensing coil mounting shell 9, three semi-circular current sensing coil mounting shells 9 are staggered, be provided with LCDs 13 in the middle and lower part of loam cake 2, display circuit board 14 is fixed on loam cake 2 inboards, and be connected with corresponding plug socket 16 on the multifunctional integrated circuit plate 3 by liquid crystal display connection-peg 15, establish gum cover 17 in the central through hole 10 of semi-circular current sensing coil mounting shell 9, the current lead that gum cover 17 inserts on the current sense coil 6 penetrates in the hole.Its each parameter input end junction block 4 and each parameter output terminal junction block 5 are one with multifunctional integrated circuit plate 3 ends in succession; Fixed card slot 11 is established at base plate face middle part at drain pan 1, and is provided with plug-type locking plate 12; Three semi-circular current sensing coil mounting shells 9 all with loam cake 2 one-shot formings in an integral body; Circuit on multifunctional integrated circuit plate 3 comprises measurement, demonstration, control, interface and power unit composition, one side of each the parameter input end junction block 4 on multifunctional integrated circuit plate 3 comprises input 0～600V signal and advance signal treatment circuit part, current sense coil 6 on loam cake 2 comprises 0-5A and advance signal treatment circuit part, and module is therefrom obtained multiple real time datas such as voltage, electric current, frequency; LCDs 13 on loam cake 2 adopts high-quality liquid crystal (LCD) display module, and every screen can show the figure of 8 * 4 Chinese characters (16 * 16) or 128 * 64 pixels; Microcontroller is a core with the LPC2132 single-chip microcomputer, is equipped with 6 road A/D conversion; Peripheral function possesses relay output, switching value Input Monitor Connector, 4～20mA output, electrical energy pulse output etc.; Communication interface adopts half-duplex RS 485 interfaces, is used for transmitting measurement data in real time to host computer; Power supply and processing, communication, control section are isolated fully, maximum realization safe, and this is a known technology.Software is mainly realized measurement data calculating, and inner parameter calculates, electric energy adds up, and data processing such as maximum (little) value also are known technology.

Claims (2)

1. EDA9133 synthesis electrical supervising instrument, by drain pan (1), loam cake (2), multifunctional integrated circuit plate (3), each parameter input end junction block (4), each parameter output terminal junction block (5), current sense coil (6) constitutes, multifunctional integrated circuit plate (3) is installed in drain pan (1) inside, current sense coil (6) is established three, by connecting in the respective socket (8) on current sense coil plug (7) the insertion multifunctional integrated circuit plate (3), it is characterized in that establishing three semi-circular current sensing coil mounting shells (9) to outer lug on the top of loam cake (2), establish through hole (10) at the center of semi-circular current sensing coil mounting shell (9), three semi-circular current sensing coil mounting shells (9) are staggered, be provided with LCDs (13) in the middle and lower part of loam cake (2), display circuit board (14) is fixed on loam cake (2) inboard, and be connected with corresponding plug socket (16) on the multifunctional integrated circuit plate (3) by liquid crystal display connection-peg (15), in the central through hole (10) of semi-circular current sensing coil mounting shell (9), establish gum cover (17).

2. EDA9133 synthesis electrical supervising instrument according to claim 1 is characterized in that its each parameter input end junction block (4) and each parameter output terminal junction block (5) and multifunctional integrated circuit plate (3) end are one in succession; Fixed card slot (11) is established at base plate face middle part at drain pan (1), and is provided with plug-type locking plate (12); Three semi-circular current sensing coil mounting shells (9) all with loam cake (2) one-shot forming in an integral body.

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