CN2255616Y - Three-phase watt-hour meter electronic instrument for preventing fraudulent use of electricity - Google Patents
Three-phase watt-hour meter electronic instrument for preventing fraudulent use of electricity Download PDFInfo
- Publication number
- CN2255616Y CN2255616Y CN 96226953 CN96226953U CN2255616Y CN 2255616 Y CN2255616 Y CN 2255616Y CN 96226953 CN96226953 CN 96226953 CN 96226953 U CN96226953 U CN 96226953U CN 2255616 Y CN2255616 Y CN 2255616Y
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- electricity
- machine
- circuit
- phase
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- Expired - Fee Related
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Abstract
The utility model relates to a three-phase electric meter electronic device with electricity theft prevention, comprising a host machine and an auxiliary machine. The host machine and the auxiliary machine are both composed of a box body and a machine core. The machine core of the host machine is provided with a high-frequency protective circuit, a controllable gravity switch, a balanced differential and contrast protector. The machine core of the auxiliary machine is provided with an electric meter pressure loss switch, a three-phase low voltage switching circuit, a mercury switch, a positive and negative converter, a no power switching circuit, etc. A telemetering line is arranged between the host and auxiliary machines. The house lead-in electricity of three phases of A, B, and C are arranged under a monitor; when an electricity theft signal is measured, circuits with various functions respectively act; a power supply is cut off, preventing thieving electricity of various methods by electricity utilization units or people.
Description
The utility model belongs to the design and the manufacturing technology field of anti-electricity-theft device.
The anti-electricity-theft device that is used at present on power line mostly adopts prestress spring-piece type device, is to produce heat when over-voltage and over-current occurring, makes the shell fragment expanded by heating, and shell fragment bounces and cuts off the electricity supply.This device can not play many-sided anti-electricity-theft effect, and its sensitivity and effect are all undesirable.Currently, also do not have not sell on market with the utility model like products or use at work.
The purpose of this utility model provides and is a kind ofly become with secondary mechanism by main frame, have carrier current protection power supply, high frequency protecting circuit, electronic lock circuit, controlled gravity switch, transwitch, balanced differential, contrast protector, ammeter lose compress switch, three-phase low-voltage switches circuit, the anti-electricity-theft instrument of a kind of three phase watt-hour meter electronics that selects circuitry phase, telemetering line etc. to constitute.
Structure of the present utility model as shown in drawings; Comprise main frame and secondary machine, its main frame and secondary machine all are to be made of movement and casing.
Its main frame casing has chamber door (2) in casing (1) front as shown in Figure 1, has Electrical key hole (3) on the chamber door, and there is an electric lock (4) the casing the inside, also has pilot lamp (8) on the chamber door, has rainproof support plate (7) above the pilot lamp.At lower box into wire hole (6) is arranged, have handle (5) on the chamber door.
The movement of its main frame is a wiring board, constitutes various functional circuits by each element.Its major function circuit has high frequency protecting circuit CTYXK, electronic lock circuit DZS
1, controlled gravity switch ZLK, counter JSP, code translator YMP, balanced differential, contrast protector PHY, change-over circuit ZH
1, overvoltage crowbar GY, select circuitry phase HX
1Deng.More than each circuit interconnect, constitute the main frame movement circuit.
Have triode, voltage stabilizing diode, phase shift oscillation circuit, coupling capacitance, relay on the high frequency protecting circuit.The structure of electronic lock circuit is to be made of triode, oscillation circuit, frequency-selective circuit and relay.Controlled gravity switch is made of inner wire, outer conductor, heavy ball, magnet and coil.Balanced differential, contrast protector have triode, stabilivolt, varied curve circuit, diode.Change-over circuit comprises relay, diode.Overvoltage crowbar comprises stabilivolt and resistance.Select circuitry phase to form by relay.More than each element interconnect, constitute each circuit.
The shell of secondary machine is in secondary box body (11) front one external door (12) to be arranged, and a control box (13) is arranged at casing top, and there is an Electrical key hole (14) control casing front, has electric lock (16) in casing one side.The bottom of casing is a wire hole (17) into, has handle (15) on the external door.
The movement of its secondary machine comprises following main circuit, has ammeter high frequency protecting circuit CTYXK, carrier coupling capacitor CACB, ammeter to lose the DYK that compresses switch, three-phase low-voltage switches GYK, mercury cut-off SYK, electronic lock circuit DZS
2, positive and negative converter ZH
2, no power conversion circuit WDZH
2, telemetering line YZX
1More than each circuit interconnect, constitute secondary machine core circuit.
Have triode, voltage stabilizer, phase shift oscillatory circuit, relay on its ammeter high frequency protecting circuit.Carrier coupling capacitor.On losing and compress switch, ammeter has triode, diode, relay and sampling loop.Three-phase low-voltage switches circuit is a low tension switch.Triode, stabilivolt, relay, oscillation circuit and frequency-selective circuit are arranged on the electronic lock circuit.Have relay and diode on the positive and negative converter.Relay, push switch, pilot lamp are arranged on the no power conversion circuit.Telemetering line is a p-wire that is provided with between major and minor machine, is used for signal contact between the major and minor machine.Each element is interconnected to constitute each circuit.
Using method of the present utility model is that movement is placed in the container body of outer cover.Main frame is arranged at outside line or power supply house lead in place, and secondary machine is positioned in the electric supply meter case.
Principle of work of the present utility model is: owing to have telemetering line, A, the B of house lead in, C three-phase electricity are placed under the monitoring.When secondary machine examination measures the stealing signal, by telemetering line input main frame, to prevent user's stealing.Host C TA and secondary machine CTA ' are same electric currents when normal electricity consumption, are in dynamic balance state.The operational order no-output.In case find to have stealing electricity phenomenon such as short circuit ammeter inlet wire and outlet or counter-rotating, high frequency protecting circuit action, relay J K
6Adhesive makes JK
8Adhesive causes change-over circuit work, and the output negative signal enters main frame through telemetering line, and the JKS action causes JK
2Action makes the low tension switch loss of excitation, the excision three-phase alternating-current supply.As between major and minor machine line and alternate stealing, CAT and secondary machine CAT ', CTB and CTB ', CTC and CTC ' or A '-O, B '-O, C '-0 can cause current transformer difference stream to occur on the main frame so, main frame double differential amplifier out of trim then, operational amplifier sends instruction, JK
2Adhesive, JKG discharges, the excision three-phase supply.Gravity switch is located on the main frame, and when earthquake took place more than 6.5 grades, the gravity switch interior spheroid just overcomes on the spring tension jumped, and when arriving certain amplitude, with the adhesive of loam cake magnet, makes the eternal out of trim of double differential amplifier, JK
2Adhesive, JKG discharges, the excision power supply.Take place to prevent fire and accident of human electric shock.Need press the recovery push switch during recovery, make coil electricity, interior spheroid falls, and recovers normal power supply.Main frame is provided with anti-short circuit CTA high frequency phase switcher, and if any flash lights takes place, then explanation has stealing electricity phenomenon, and operational amplifier sends instruction, JK
2Adhesive, JKG discharges, the excision power supply.The utility model has counter and code translator, if any electricity filching behavior five times, by register memory, JK
11Adhesive, DXB
2Pilot lamp is bright, adds a forward signal for gravity switch ZLK, makes JK
2Adhesive, JK
3Discharge forever, must recover by electric industry department.
Its secondary machine is to fit together with three phase watt-hour meter, disconnects as the voltage shackle on the watt-hour meter, and losing in the table compresses switch DYK startup contact with the current coil short circuit, through Ca and Cb coupling, starts the high frequency phase switcher, JK
6Adhesive, JK
8, JK
7Adhesive, ZH
3Conversion makes the JS ' adhesive on the main frame, JK
2' adhesive, JK discharges, the excision power supply.When artificially watt-hour meter being reversed stealing, CT
7-9Export an AC signal, make KG
2The switch adhesive is through IC
5Action, JK
9Adhesive is again through IC
3Action, JK
8-JK
7Adhesive, ZH
3Conversion makes main frame JS ' adhesive, the excision power supply.
Telemetering line transmits the normal electric test signal of using at ordinary times, and the self-protection function is arranged itself, as artificial broken string, ground connection, takes live wire and analog test signal, all can make JKZ ' adhesive, and JKG discharges, the excision power supply.
Also be provided with on the major-minor machine and select circuitry phase, three characteristics of the middle term power supply is lost phase sometimes, and the power supply of this machine is connected on when losing the phase loop, then circuit is not worked, and is provided with to select circuitry phase for this reason, and it can make three-phase supply change each other, when not having electricity mutually as A, select circuitry phase can make this machine power supply jump to the B phase, B jumps to the C phase when not having electricity mutually, recovers mutually and can get back to the A phase as A.To guarantee this machine operate as normal.
The utility model is simple in structure, and is reasonable in design, compares with existing product to have very high sensitivity, can prevent from effectively to carry out stealing in every way with electric unit or individual.Its principal feature is that watt-hour meter obtains reliably protecting, and the table case adopts the electronic lock circuit protection, and the rule of giving away secrets is extremely low.Prevent that the people is for opening table case and outside destroy.Can protect electric pole downlead and subscribers feeder again.Comprehensive protection.
Fig. 1 is the utility model mainframe box body structure figure
Fig. 2 is the utility model host line structural drawing
Fig. 3 is the secondary box body structural drawing of the utility model
Fig. 4 is the secondary machine circuit structural drawing of the utility model
Among Fig. 1:
1-casing 2-chamber door 3-Electrical key hole 4-electric lock 5-handle 6-advances the rainproof support plate 8-of wire hole 7-pilot lamp
Among Fig. 3:
11-casing 12-external door 13-control box 14-Electrical key hole 15-handle 16-electric lock 17-advances wire hole
Casing of the present utility model is a metallic, and its movement is to be welded on the printed circuit board (PCB) by each electronic component.About its reproduction, relate to the assembling of metal processing and electronic component, can be with reference to this instructions and accompanying drawing, by each professional known technology, processing, assembling can be reproduced.
Claims (1)
1. the anti-electricity-theft instrument of three phase watt-hour meter electronics is become with secondary mechanism by main frame, and main frame and secondary machine all are made of casing and movement, it is characterized in that having electric lock (4) on the main frame casing, has electric lock (16) on the secondary box body,
Have high frequency protecting circuit CTYXK, controlled gravity switch ZLK, balanced differential, contrast protector PHY, change-over circuit ZH on its main frame movement wiring board
1, overvoltage crowbar GY, select circuitry phase HX
1, interconnect,
Have high frequency protecting circuit CTYXK, carrier coupling capacitor CACB on its secondary machine core wiring board, ammeter is lost the DYK that compresses switch, three-phase low-voltage switches GYK, mercury cut-off SYK, positive and negative converter ZH
2, no power conversion circuit WDZH
2, telemetering line YZX
1, interconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96226953 CN2255616Y (en) | 1996-07-18 | 1996-07-18 | Three-phase watt-hour meter electronic instrument for preventing fraudulent use of electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96226953 CN2255616Y (en) | 1996-07-18 | 1996-07-18 | Three-phase watt-hour meter electronic instrument for preventing fraudulent use of electricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2255616Y true CN2255616Y (en) | 1997-06-04 |
Family
ID=33905188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96226953 Expired - Fee Related CN2255616Y (en) | 1996-07-18 | 1996-07-18 | Three-phase watt-hour meter electronic instrument for preventing fraudulent use of electricity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2255616Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037337A (en) * | 2017-12-18 | 2018-05-15 | 青岛乾程科技股份有限公司 | A kind of anti-bottom plate drilling stealing electric energy meter |
-
1996
- 1996-07-18 CN CN 96226953 patent/CN2255616Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037337A (en) * | 2017-12-18 | 2018-05-15 | 青岛乾程科技股份有限公司 | A kind of anti-bottom plate drilling stealing electric energy meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |