CN2610425Y

CN2610425Y - Metering device able to identificating region number and phase classification of transformer

Info

Publication number: CN2610425Y
Application number: CN 03241342
Authority: CN
Inventors: 胡大林
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-04-21
Filing date: 2003-04-21
Publication date: 2004-04-07
Anticipated expiration: 2013-04-21

Abstract

A meter reading device which can identify the number and phase of the transformer zone area comprises a transformer zone area signal transmitter and a hand meter reading device, wherein the transmitter is arranged on the line outlet side of the transformer; the hand meter reading device can identify the transformer zone area signal; and transformer zone area signal transmitter and the hand meter reading device are connected on a central line and a phase line in the same transformer. After the hand meter reading device receives the transformer zone area number, the number and the other data of the electric energy meter are connected with a PC through a communicating interface and transferred into a management data base. The utility model has the characteristics that the utility model can automatically display the number and phase of the transformer zone area supplying the power to the utility model; through the line loss analysis, the utility model is convenient for the electric power department to reduce the low-voltage physical line loss and advance the safety electro-index; also, the utility model is installed and connected simply and operated conveniently, and is safe and reliable; and moreover, the related technique of the electric energy meter reading circuit, the electric power carrier transmitting/receiving circuit and so on are all mature and simply realized, and the cost is low.

Description

Can discern transformer platform district numbering and separate meter copying device

Technical field

The utility model relates to a kind of transformer platform district that can discern and numbers and separate meter copying device.

Background technology

Along with the realization of the electric system marketization, will more become perfect to the management of power use of low-voltage customer, transformer is carried out will putting on agenda by the work of platform district management.Because large scale electric network transformation in recent years, increase many transformers newly and used electric line, and current low-voltage customer stealing, to set up situation such as supply lines privately relatively more serious, makes the low-voltage customer management of power department have certain leak, also not strong to the specific aim of the inspection work of stealing situation.In current electric energy metrical work, the present employed meter-copy device of meter reading personnel can only be copied power taking energy meter reading and the time relevant with reading, can't know that but which the electric energy meter of being copied by which platform transformer-supplied, is connected on and goes up mutually.Therefore power supply administration also can't count total electricity consumption, each phase power consumption, the number of users that every transformer supplies user's electric energy meter, also can't calculate the current supply loss of every transformer, the three-phase electric energy balance etc. of whether loading.Investigate thoroughly each bar circuit, each user's distribution source, must be along distribution line, on the spot one by one, looking into piecemeal, even also need to have a power failure and cooperate, its workload will be very big.Wrong copy, leaking the phenomenon of copying and also happen occasionally appears when checking meter in the meter reading personnel.Solve above these problems, just need a kind of meter copying device that can discern to the transformer platform district numbering of this circuit or user's power supply, it also can be differentiated simultaneously is that phase.Present meter-copy device does not all possess this function.

Summary of the invention

The purpose of this utility model just provides a kind of transformer platform district that can discern and numbers and separate meter copying device, this device can send to transformer platform district numbering and phase level signal in the supply line by the power carrier mode, the staff at any time can the online reception of enough meter-copy devices, thereby can judge accurately and fast when checking meter to the transformer platform district numbering of circuit or user's power supply and separate.

The transformer platform district that can discern of the present utility model numbers and separate meter copying device, comprise transformer platform district sender unit, hand-held meter-copy device, transmitter is loaded on transformer outlet side, the hand-held meter-copy device can be discerned transformer platform district signal, and transformer platform district sender unit and hand-held meter-copy device insert center line and the phase line under the same transformer.Meter-copy device has the function that transformer platform district sender unit is numbered concurrently, " numbering " function is selected in the energising back in hand-held meter-copy device function menu, can be numbered or revise transformer platform district sender unit, transformer platform district sender unit stores (power down is not lost yet) with received numbering, and enters the request command state of waiting for.Transformer platform district sender unit after numbering sends to its numbering signal in the supply line by carrier system, in the function menu of hand-held meter-copy device, select " identification " function, send one to transmitter and send request command, transmitter is after receiving the transmission request command, the transformer platform district numbering of being stored is sent, enter the request command state of waiting for after transmitter is sent completely again.The hand-held meter-copy device is after receiving transformer platform district numbering, and this numbering can show on screen.This numbering will be kept at other data of electric energy meter in the FLASH storer together, link to each other with PC and data are sent in the management database by communication interface.

The utility model can assist that the scene of power supply department is looked into, the meter reading personnel discerns arbitrary circuit and user in time, exactly by which platform transformer-supplied, which is connected on goes up mutually, to understand the actual distribution situation of low-voltage power supply network.Assist power supply department to realize striding forward to the pattern (being the management of platform district) of accurate management by the management mode of extensive style.Its data can be assisted power supply department accurately to count transformer after background computer is handled and be sent electric number of users and user's electric energy meter electric weight sum, by with the line loss situation of knowing quite well of transformer summary table electric weight, the balance of three-phase electricity consumption etc.It has following characteristics:

1, can when checking meter, show automatically to the transformer platform district of its power supply numbering and separate, improve work efficiency and plant factor;

2, by line loss analyzing, can be the personnel of opposing electricity-stealing the investigation data are provided, dwindle examination scope, also can be management of power use personnel simultaneously the balancing the load report is provided, for the electricity consumption personnel user's point is adjusted, be convenient to power department and reduce low pressure physics line loss, improve the safety utilization of electric power index.

3, its external cabling only need insert three-phase four-wire power and gets final product, and it is simple, easy to operate, safe and reliable that wiring is installed;

4, the electric energy meter correlation techniques such as circuit, power carrier transmission/receiving circuit of checking meter are all ripe, realize that easily cost is low.

Description of drawings

Fig. 1 is the utility model principle of work synoptic diagram;

Fig. 2 is the utility model structural representation;

Embodiment

A kind ofly can discern transformer platform district numbering and separate meter copying device comprises transformer platform district sender unit 2, hand-held meter-copy device 1, transmitter 2 is loaded on transformer 3 outlet sides, hand-held meter-copy device 1 can be discerned transformer platform district signal, and transformer platform district sender unit 2 and hand-held meter-copy device 1 insert on the center line and phase line of same transformer 3.Transformer platform district sender unit 2 comprises singlechip CPU 21, carrier wave sending/receiving module moden22, the circuit access carrier sending/receiving module moden22 of required identification is PLC103s-5 input pin L, N, and output pin RXD-TTL, the TXD-TTL of carrier wave transmission/receiver module moden22 and CPU21 are that TXD, the RXD pin of AT89C2051 links to each other.Hand-held meter-copy device 1 comprises singlechip CPU 11, carrier wave transmission/receiver module moden12, LCD MODULE LCD13, the circuit access carrier transmission/receiver module moden12 of required identification is PLC103s-12 input pin L, N, output pin TXD-TTL, the RXD-TTL of carrier wave transmission/receiver module moden12 and singlechip CPU 11 are that RXD, the TXD pin of AT89C2051 links to each other, and the output terminal P1.0-P1.7 of singlechip CPU 11 is that the input end D0-D7 of MPG881 joins with LCD MODULE LCD13 respectively.

Its principle of work is: " numbering " function is selected in the energising back in hand-held meter-copy device function menu, singlechip CPU 11 is sent " numbering " request instruction, after carrier wave transmission/receiver module moden12 modulation, this instruction sends to transformer platform district sender unit in the supply line by carrier system, after sender unit inside carrier transmission/receiver module moden22 demodulation, send CPU21 to handle, it is " numbering " request or " identification " request that CPU21 at first differentiates this request instruction, after judgement is " numbering " request, (this numbering power down is not lost yet) handled and preserved to preparation to the numbering that receives later, and enter the request command state of waiting for.If in the function menu of hand-held meter-copy device, select " identification " function, CPU11 sends " identification " request instruction, after carrier wave transmission/receiver module moden12 modulation, this instruction is sent to transformer platform district sender unit in the supply line by carrier system, after transformer platform district sender unit inside carrier transmission/receiver module moden22 demodulation, send CPU21 to handle, it is " numbering " request or " identification " request that CPU21 at first differentiates this request instruction, after judgement is " identification " request, then send instruction the platform district of the transformer that it stored numbering is sent to inner moden22, after the moden22 modulation, send in the supply line, enter the request command state of waiting for after transmitter is sent completely again by carrier system.After the carrier wave transmission/receiver module moden12 of hand-held meter-copy device receives transformer platform district numbering and demodulation, send CPU11 to handle, and on its LCD MODULE LCD13, show, numbering is saved in the storer.

Claims

1, a kind ofly can discern transformer platform district numbering and separate meter copying device comprises transformer platform district sender unit (2), hand-held meter-copy device (1), it is characterized in that: transmitter (2) is loaded on transformer (3) outlet side, hand-held meter-copy device (1) can be discerned transformer platform district signal, and transformer platform district sender unit (2) and hand-held meter-copy device (1) insert on the center line and phase line of same transformer (3).

2, the transformer platform district that can discern according to claim 1 numbers and separate meter copying device, it is characterized in that: transformer platform district sender unit (2) comprises single-chip microcomputer (CPU21), carrier wave sending/receiving module (moden22), the circuit access carrier sending/receiving module (moden22) of required identification is PLC103s-5 input pin (L), (N), and the output pin (RXD-TTL) of carrier wave transmission/receiver module (moden22), (TXD-TTL) and (CPU21) are that (TXD), (RXD) pin of AT89C2051 links to each other.

3, the transformer platform district that can discern according to claim 1 numbers and separate meter copying device, it is characterized in that: hand-held meter-copy device (1) comprises single-chip microcomputer (CPU11), carrier wave transmission/receiver module (moden12), LCD MODULE (LCD13), the circuit access carrier transmission/receiver module (moden12) of required identification is PLC103s-12 input pin (L), (N), the output pin (TXD-TTL) of carrier wave transmission/receiver module (moden12), (RXD-TTL) be AT89C2051 (RXD) with single-chip microcomputer (CPU11), (TXD) pin links to each other, and the output terminal (P1.0-P1.7) of single-chip microcomputer (CPU11) is that the input end (D0-D7) of MPG881 joins with LCD MODULE (LCD13) respectively.