CN201166680Y

CN201166680Y - Device of electric power high-voltage measuring box for preventing electricity fraudulent use

Info

Publication number: CN201166680Y
Application number: CNU2007200822961U
Authority: CN
Inventors: 胡建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-07
Filing date: 2007-12-07
Publication date: 2008-12-17
Anticipated expiration: 2017-12-07

Abstract

The utility model relates to an electricity-filch monitoring device of a high-voltage power metering box (35 kV, 10 kV, 6 kV), in particular to an electricity-filch monitoring device which can thoroughly prevent electricity-filch behaviors bypassing the high-voltage power metering box. The electricity-filch monitoring device belongs to the power technical field, aims to solve the problem of preventing electric larceny, and has the contents that samples are taken from a high-voltage line and a low-voltage line, and electric currents are compared, that is, electric currents are obtained from the secondary circuit of the current transformer 1 of the high-voltage power metering box and the second circuit of the measuring transformer of a total power cabinet in a low-voltage power distribution room, and are sent to a minitype comparing transformer 3, the minitype comparing transformer induces the unbalanced electric current during the electric larceny, and then sends the electric current to a current relay 4, the current relay controls a communication module 5, and the communication module informs a power department through a short message or a phone. The electricity-filch monitoring device can prevent the current circuit of a watt-hour meter in the high-voltage power metering box from being shut off, shunted and commutated, effectively and thoroughly prevent the electricity-filch behaviors bypassing the high-voltage power metering box, and realize the assembly without power cut.

Description

Power high voltage batch meter anti-electricity-theft device

Technical field

The utility model relates to a kind of anti-electricity-theft device of power high voltage batch meter, especially can prevent effectively, up hill and dale around the electricity filching behavior of getting over measuring apparatus.

Background technology

At present, power industry user's electricity filching behavior mainly shows as around getting over measuring apparatus, change forms such as measuring apparatus wiring and damage measuring apparatus, known anti-electricity-theft device mainly is at the low-temperature measurement user, and to the High-voltage measuring box anti-electricity-theft device, just prevent to change the measuring apparatus wiring and damage measuring apparatus, as using the armouring lead at secondary circuit, the metering casing is provided with coded lock and installs method such as pick-proof lock additional, but opposing connection is got over the stealing mode of High-voltage measuring box, mainly be to take to select for use the dry type combination transformer, and at mutual inductor primary side dress thermal shrinkable sleeve (or shrinkage sheath), adopt the anti-electricity-theft deficiency of this form: anti-electricity-theft narrow range, the cost height, the difficulty of applying is big.

Summary of the invention

In order to overcome the anti-electricity-theft narrow range (can't prevent short circuit batch meter mutual inductor stealing mode once) and the expensive deficiency of existing power high voltage batch meter anti-electricity-theft device, it is a kind of with low cost that the utility model provides, do not need to increase current transformer, the power high voltage batch meter anti-electricity-theft device that anti-electricity-theft scope is wide.And can realize the factories and miness installation that do not have a power failure.

The technical scheme that its technical matters that solves the utility model adopts is: from different electric pressure circuit sampling ratios than electric current, promptly adopt take a sample respectively power transformer high-pressure side secondary current and low-pressure side secondary current to compare, based on electromagnetic induction principle, compare the out-of-balance current that produces because of stealing, remove to control communication module and operating mechanism with this electric current again, thereby reach anti-electricity-theft purpose, promptly in the factories and miness distribution system, need not to change the configuration of existing equipment, only need to measure transformer secondary circuit power taking stream from existing power transformer high-voltage batch meter secondary loop of mutual inductor power taking stream with from factories and miness low-voltage distribution chamber general supply cabinet, utilizing relatively, transformer compares, induce out-of-balance current, pass to current relay, remove to drive communication module by current relay, can realize: 1, accurate to power department, notify stealing factories and miness title at once, 2, can on-the-spot audio alert, 3, can operate control user power supply.

The beneficial effects of the utility model are: can prevent that High-voltage measuring box electric energy meter current return from opening circuit, shunting and commutation, especially can prevent effectively, up hill and dale around the electricity filching behavior of High-voltage measuring box more.

Description of drawings

Fig. 1 is a power high voltage batch meter anti-electricity-theft device structural drawing.

Among the figure: the current transformer in the 1 expression High-voltage measuring box; 2 expression electric energy meter kilsyth basalts; 3 expressions are transformer relatively; 4 expression current relay; 5 expression communication modules; 6 expression factories and miness low-voltage distribution chamber general supply cabinets are measured reometer; 7 expression low-voltage distribution chamber general supply cabinets are measured mutual inductor; 8 expression power distribution transformers; 9 expression high-tension lines; 10 expression low-voltage distributing lines; 11 expression factories and miness low-voltage distribution chamber general supply cabinet secondary loop of mutual inductor; Secondary loop of mutual inductor in the 12 expression High-voltage measuring boxs.

Embodiment

This power high voltage batch meter anti-electricity-theft device is made up of three parts:

1, test section: by 2-3 only relatively transformer 3 be connected lead and form.Every comparison transformer has 2 groups of primary coils and 1 group of secondary coil.One group of primary coil of transformer is relatively connected in the High-voltage measuring box one phase current loop, another primary coil that compares transformer is connected into the same phase current of low-voltage distribution panel reometer loop, adopt reverse polarity, factories and miness are when normal electricity consumption, relatively magnetic flux is cancelled each other in transformer 3 iron cores, the secondary coil no current produces, and when the factories and miness stealing, relatively the secondary coil of transformer will have electric current to produce.

2, drive part: be made up of 2-3 current relay, the coil of current relay 4 is connected respectively in the secondary coil loop of comparison transformer 3, the normally opened contact parallel connection of out of phase current relay removes to control communication module 5 by normally opened contact.

3, operating part: be made up of 1 communication module, the communication module tool mainly contains following several big function:

A: can send the stealing notes, call to 6 mobile phones simultaneously by mobile or UNICOM's network, the electricity consumption factories and miness that different telephone numbers is corresponding different, power department can accurately know it is which factories and mines is just in stealing according to the caller identification number;

B: can directly drive No. 8 relays, can control factories and miness power supply (power supply power department is selected);

C: can monitor the High-voltage measuring box sound on every side with mobile phone or base.

In the concrete enforcement of the utility model, only compare transformer, a 2-3 current relay and 1 communication module and partly be connected lead by 2-3 altogether and form.

Mode of connection: one group of primary coil that will compare transformer 3 is connected in the High-voltage measuring box one phase current loop, another group primary coil is connected into the same phase current of low-voltage distribution panel reometer loop, adopt reverse polarity, the coil of current relay 4 is connected respectively in the secondary coil loop of comparison transformer 3, the normally opened contact parallel connection of out of phase current relay, the normally opened contact of current relay connects communication module 5.

Communication module is selected JB35 short message tele-alarm dedicated GSM module for use.

Characteristics:

1, module can directly drive No. 8 relays.No. 8 relays can be controlled with note remote control, DTMF remote control, ring remote control.

2, has note remote control retransmission function as a result.Module can still return the control result after receiving the remote control note with the form of note.

3, be provided with the caller ID filtrator, refuse illegal mobile phone remote module relay, make your mobile phone have the effect of remote control " I.D. ".

4, can pre-deposit 21 stealing short message contents and transmission hand horn sign indicating number in the module.

5, after 12 pin of module are triggered by low level, can send the stealing note, call to 6 mobile phones simultaneously.

Claims

1, a kind of power high voltage batch meter anti-electricity-theft device, electric pressure is 35kV, 10Kv, 6kV, it is characterized in that: from power transformer high-pressure side and low-pressure side while sampling current signal, pass to comparator circuit, driving circuit and communication module, step by step control respectively.

2, power high voltage batch meter anti-electricity-theft device according to claim 1, it is characterized in that: the electric current of taking from power transformer high voltage side current mutual inductor and low-voltage distribution side current transformer respectively, pass to comparison transformer or comparator circuit, by comparing the output of transformer or comparator circuit, remove to control communication module by current relay because of the out-of-balance current that stealing produces.