CN101144833A - Method for controlling user load of intelligent electric energy meter - Google Patents
Method for controlling user load of intelligent electric energy meter Download PDFInfo
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- CN101144833A CN101144833A CNA2007100740792A CN200710074079A CN101144833A CN 101144833 A CN101144833 A CN 101144833A CN A2007100740792 A CNA2007100740792 A CN A2007100740792A CN 200710074079 A CN200710074079 A CN 200710074079A CN 101144833 A CN101144833 A CN 101144833A
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Abstract
The present invention relates to a method using an intelligent electrical energy meter to control the load of the user, and includes the following procedures: integrating a user load breaker and the intelligent electrical energy meter; setting a threshold for shutting off the electric quantity of the user load and/or a load amount limiting threshold in a microprocessor in the intelligent electrical energy meter; the microprocessor monitors the actual electricity consumption amount/expense of the user, and/or monitors the actual operating load of the user; when the actual electricity consumption amount/expense reaches the threshold for shutting off the electric quantity of the user load and/or the load amount limiting threshold, the microprocessor outputs an opening control signal to the user load breaker to ensure the user load breaker to break the load. Compared with the prior art, the present invention can meet the standard requirements of the common universal breaker in the capacity, the service life, the using times, the heat radiation, the insulation, and the like; and can avoid the exterior disadvantages of the individual line connecting, the installation, the control, and the like of the user load breaker and the intelligent electrical energy meter; the installation is convenient, and the present invention can prevent electricity stealing.
Description
Technical field the present invention relates to measure the electric variable technical field, particularly relates to the electric energy measurement method.
The existing intelligent electric energy meter of background technology, the electric energy meter that promptly possesses the electric mode of forward purchasing, data transmission medium employing contact type IC-card and adopt the wire/wireless communication modes, the method for control user load adopt interior relay divide-shut brake of table or the external circuit-breaker switching on-off of table control.Check meter at the scene and the method for the control user load of wire/wireless automatic data logging adopts on-the-spot manual divide-shut brake or Long-distance Control divide-shut brake, the Long-distance Control divide-shut brake also needs closely by carrying out in the method for built-in relay of table or the external circuit-breaker switching on-off of table control.It has the following disadvantages:
1, customer charge increases with the frequent improvement of productive life, is shown interior space, structure, ambient temperature and humidity and load characteristic etc. and influences and show built-in relay mode, is difficult to satisfy its capacity, life-span, number of times, heat radiation and insulating requirements.
If 2 by showing the external circuit-breaker switching on-off of control with the control user load, then extremely inconvenient at installation, wiring, control everyway; And easily by stealing, the user will show to separate with breaker connection or with other means by force electricity consumption all can cause the supplier of electricity loss.
The summary of the invention the technical problem to be solved in the present invention is to avoid above-mentioned the deficiencies in the prior art part and proposes a kind of space in the electric energy meter, structure, environment etc. of not being subjected to and influence, and the method for controlling user load of intelligent electric energy meter easy for installation, that anti-stealing electricity function is arranged.
The present invention solve the technical problem can be by realizing by the following technical solutions:
Propose a kind of method of controlling user load of intelligent electric energy meter, include following steps:
Closely be connected in aggregates with intelligent electric energy meter described user load isolating switch;
Set in the microprocessor in intelligent electric energy meter and cut off user load electric weight thresholding and/or load limit amount thresholding;
The actual power consumption of described microprocessor monitors user/take, and/or monitor user ' actual motion load;
Cut off user load electric weight thresholding and/or load limit amount thresholding if the actual power consumption of user/expense reaches, described microprocessor makes user's load cut-off device disconnecting consumers to user load isolating switch output separating brake control signal.
Described intelligent electric energy meter can be connected the input side of user load isolating switch, also can be connected the outgoing side of user load isolating switch.
Intelligent electric energy meter and user load isolating switch close-coupled become integral body, non-dismountable without permission, compare with prior art, technique effect of the present invention is: not only can satisfy general general isolating switch standard-required at aspects such as capacity, life-span, number of times, heat radiation and insulation, and many outside unfavorable factors such as the two split line, installation, control have been avoided, easy for installation, and can prevent stealing.
Description of drawings
Fig. 1 closely is connected the structural representation of user load isolating switch input side according to the inventive method with intelligent electric energy meter, wherein, Fig. 1-the 1st, front view, Fig. 1-2 are side views;
Fig. 2 is connected the structural representation of isolating switch outgoing side according to the inventive method with described electric energy meter, wherein, and Fig. 2-the 1st, front view, Fig. 2-the 2nd, side view;
Fig. 3 is the circuit diagram that described electric energy meter is connected the isolating switch input side, and wherein, Fig. 3-the 1st, isolating switch adopt the synoptic diagram of automatic divide-shut brake mode, Fig. 3-the 2nd, and isolating switch adopts the synoptic diagram of no-voltage trip mode; Fig. 3-the 3rd, isolating switch adopts the synoptic diagram of shunted exciter tripping mode;
Fig. 4 is the circuit diagram that described electric energy meter is connected the isolating switch outgoing side, wherein, Fig. 4-the 1st, isolating switch adopts the synoptic diagram of no-voltage trip mode; Fig. 4-the 2nd, isolating switch adopts the synoptic diagram of shunted exciter tripping mode.
Embodiment is described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing.
When adopting the electric way of paying of forward purchasing, can be by IC-card (contact or contactless), wired (utilizing RS485 interface, PLC or optical fiber) or wireless communication modes such as (high frequency or ultrahigh frequencies), presetting in the card prepay charging management system purchased electric weight/expense, warning electric weight thresholding, maximum are set hoard electric weight/expense, load limit amount and agreement overdraw electric weight/preset parameters such as expense and import in the electric energy meter.When dump energy in the electric energy meter was less than or equal to the warning electric weight thresholding that system purchases, electric energy meter carried out sound and light alarm.When dump energy is used up, if the agreement overdraw electric weight/expense that presets in the table greater than zero, but user's plug-in card is removed warning and is restored electricity; If agreement overdraw electric weight/expense is most, electric energy meter is then controlled the user load isolating switch and is cut off user load, has only the user to import and new purchase electric weight/expense and can recover electricity consumption.
When user's operating load surpassed the load limit amount that presets, electric energy meter carried out sound and light alarm, if overload reached setting-up time as 5 minutes continuously, electric energy meter then cuts off user load, could recover electricity consumption after having only load down.
Electric energy meter comprises AC signal sample circuit, ADC (analog digital conversion)+DSP (digital signal processing) or special-purpose metering circuit, microprocessor and control circuit thereof, display circuit and communicating circuit.Alternating current sampling circuit is sent voltage, the current sampling signal of load into ADC+DSP or special-purpose metering circuit.Finish power consumption (expense) and various calculating in the microprocessor through information that computing output is proportional to electric power, voltage, electric current:
The user load isolating switch comprises parts such as insulation crust, operating mechanism, arc-control device, contact system and electrical apparatus release, operating mechanism has the function that makes quick combined floodgate of contact and disjunction, and this isolating switch has manual divide-shut brake, dropout separating brake closing by hand, divide-shut brake is multiple automatically.
Cut off the separating brake of customer charge and can control the load of user load isolating switch disconnect user, thereby this structure electric energy meter 1 connects with the input side of user load isolating switch 2 and become integral body, as shown in figures 1 and 3 by electric energy meter microprocessor output separating brake control signal.The control signal of electric energy meter output will purchase at Ic card, wired or wireless various communication modes after supplemental characteristic such as electric weight imports the electric energy meter microprocessor, continuous operation result in the electric energy meter operational process provides, treat that the user is after buying new electric weight (expense), in IC-card or wired, wireless mode input table, the little processing of electric energy meter can be exported energization control signal and be controlled the user and carry the load of device closed user, and the closure of user load isolating switch is promptly closed a floodgate and adopted automatic or manual mode.
Claims (6)
1. the method for a controlling user load of intelligent electric energy meter includes following steps:
1. set in the microprocessor in intelligent electric energy meter and cut off user load electric weight thresholding and/or load limit amount thresholding;
2. the actual power consumption of described microprocessor monitors user/take, and/or monitor user ' actual motion load;
If 3. the actual power consumption of user/expense reaches and cuts off user load electric weight thresholding and/or load limit amount thresholding, described microprocessor makes user's load cut-off device disconnecting consumers to user load isolating switch output separating brake control signal;
It is characterized in that:
1. be connected described user load isolating switch in aggregates with intelligent electric energy meter in step before.
2. the method for controlling user load of intelligent electric energy meter as claimed in claim 1, it is characterized in that: described intelligent electric energy meter is connected the input side of user load isolating switch.
3. the method for controlling user load of intelligent electric energy meter as claimed in claim 2 is characterized in that: described user load isolating switch adopts automatic divide-shut brake mode or automatic brake separating, manual combined floodgate mode.
4. the method for controlling user load of intelligent electric energy meter as claimed in claim 1, it is characterized in that: described intelligent electric energy meter is connected the outgoing side of user load isolating switch.
5. the method for controlling user load of intelligent electric energy meter as claimed in claim 4 is characterized in that: described user load isolating switch employing automatic brake separating, manual combined floodgate mode or manual divide-shut brake mode.
6. the method for controlling user load of intelligent electric energy meter as claimed in claim 1, it is characterized in that: the housing of described user load isolating switch and the housing of intelligent electric energy meter are welded into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100740792A CN101144833A (en) | 2007-04-16 | 2007-04-16 | Method for controlling user load of intelligent electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100740792A CN101144833A (en) | 2007-04-16 | 2007-04-16 | Method for controlling user load of intelligent electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101144833A true CN101144833A (en) | 2008-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100740792A Pending CN101144833A (en) | 2007-04-16 | 2007-04-16 | Method for controlling user load of intelligent electric energy meter |
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| CN (1) | CN101144833A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901851A (en) * | 2011-07-25 | 2013-01-30 | 南京能瑞自动化设备股份有限公司 | Single-phase remote-cost control intelligent ammeter with RS485 control signal output |
-
2007
- 2007-04-16 CN CNA2007100740792A patent/CN101144833A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901851A (en) * | 2011-07-25 | 2013-01-30 | 南京能瑞自动化设备股份有限公司 | Single-phase remote-cost control intelligent ammeter with RS485 control signal output |
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Open date: 20080319 |