CN203396808U - Smart power grid power metering power stealing prevention control terminal - Google Patents
Smart power grid power metering power stealing prevention control terminal Download PDFInfo
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- CN203396808U CN203396808U CN201320359635.1U CN201320359635U CN203396808U CN 203396808 U CN203396808 U CN 203396808U CN 201320359635 U CN201320359635 U CN 201320359635U CN 203396808 U CN203396808 U CN 203396808U
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Abstract
The utility model provides a smart power grid power metering power stealing prevention control terminal. A direct current power supply unit is connected with an alternating current power supply. A relay (KM1) is connected in parallel with both ends of the power supply. An energy storage unit (E) is connected in parallel with both ends of the direct current power supply unit (U) through a normally open contact (KM1) of the relay (KM1). A remote control receiver is connected in parallel with both ends of the power supply. The remote control receiver is controlled by a remote control transmitter. A double winding magnetic keeping relay first winding (TQ1) is connected in series with a normally open contact (YK1) of the relay, which is used for remote control receiver reset control, and then is connected in parallel with both ends of the energy storage unit (E). A double winding magnetic keeping relay second winding (TQ2) is connected in series with a normally close contact (YK2) of the relay, which is used for remote control receiver maintenance control, and a gated switch (CK) which is arranged on a metering box, and then is connected in parallel with both ends of the energy storage unit (E). A normally open contact (TQ2) of the double winding magnetic keeping relay second winding (TQ2) is used for being connected with a control circuit breaker tripping circuit. The control terminal provided by the utility model has the advantages of reduced daily circuit power consumption, reduced heating value and reliable operation.
Description
Technical field
The utility model belongs to electric-power metering field, concrete, and the utility model relates to the anti-electricity-theft control terminal of a kind of intelligent grid electric-power metering.
Background technology
At present the electric power metering device of application, considers anti-electricity-theft demand, at the cabinet door of measuring apparatus, box house etc., anti-electricity-theft device is set.The principle of anti-electricity-theft application of installation has: infrared induction principle, mechanical switch trigger burglar-proof electric circuit etc., thereby the actuating mechanism that causes rear class is made stealing reaction, for example: by triggering breaking coil, disconnect current supply circuit, and trigger in the lump acoustic-optic alarm.
After considering that current supply circuit has a power failure, for the monitoring of illegal operation (for example still to keep, in this outage, disabled user may utilize the chance of power failure, illegally open the door of measuring apparatus, to measuring apparatus carry out illegal use operation, common for example short circuit current coil, removes the potential winding of watt-hour meter etc.) therefore, the energy-storage units of anti-electricity-theft device, as battery will possess certain capacity, the electric energy of the supervisory circuit that has a power failure when normal to meet is supplied with.
Existing Anti-current stealing meter, adopts telepilot to control it, and telepilot is controlled by power department.The receiving element of telepilot requires away from metal material, is beneficial to the reception of wireless signal.And detecting unit disturbs in order to prevent, the means that adopt shielding, to increase its reliability more.Both concentrate in together above, conflicting, cause the result that can not take into account, occur, such as maloperation and the problem such as anti-electricity-theft success ratio is not high, cannot meet the high reliability request of power industry.
The circuit part of existing Anti-current stealing meter, owing to not being optimized design, power consumption is large, and circuit elements device heating is larger, has reduced the reliability of device.
Summary of the invention
The utility model overcomes above deficiency, provides a kind of intelligent grid electric-power metering anti-electricity-theft control terminal, by optimal design, has reduced power consumption, has avoided the phase mutual interference of telechiric device with anti-electricity-theft detecting unit, improves anti-electricity-theft reliability.
The technical solution of the utility model is as follows:
The anti-electricity-theft control terminal of intelligent grid intelligent grid electric-power metering, DC power source unit is connected with AC power, relay
KM1 is connected to both ends of power, and energy-storage units E is connected to DC power source unit U two ends through the normally opened contact KM1 of relay K M1; One receiver of remote-control sytem is attempted by both ends of power, and receiver of remote-control sytem is controlled by remote control transmitter; The two ends that are attempted by energy-storage units E after normally opened contact YK1 with relay connects are controlled in the reset of double winding magnetic latching relay the first winding TQ1 and receiver of remote-control sytem.
The maintenance of double winding magnetic latching relay the second winding TQ2 and receiver of remote-control sytem is attempted by the two ends of energy-storage units E after controlling and connecting with relay normally closed contact YK2, the gate controlled switch CK that is installed on batch meter, the normally opened contact TQ2 of double winding magnetic latching relay the second winding TQ2 is used for connecting control circuit breaker trip loop.
Further, between the other end of described energy-storage units E and the other end of DC power source unit U, be connected in series another normally opened contact KM1 of relay K M1.
Further, the normally closed contact of the transfer contact of double winding magnetic latching relay the second winding TQ2, normally opened contact are connected with pilot lamp L, auxiliary reclay KM2 one end respectively, the other end of pilot lamp L, auxiliary reclay KM2 is connected with power supply respectively, the common port of transfer contact and the other end of power supply of double winding magnetic latching relay the second winding TQ2 are connected, and auxiliary reclay KM2 normally opened contact is used for connecting control circuit breaker trip loop.
Further, described double winding magnetic latching relay the first winding TQ1 is attempted by energy-storage units E two ends after connecting with capacitor C 3.
Further, double winding magnetic latching relay the second winding TQ2 controls and after connecting, is attempted by energy-storage units E two ends by relay normally closed contact YK2, the gate controlled switch CK that is installed on batch meter, capacitor C 4 with the maintenance of receiver of remote-control sytem.
Further, described capacitor C 3, capacitor C 4 two ends parallel resistances, for the electric discharge of capacitor C 3, capacitor C 4.
Further, described energy-storage units E is accumulator or electrostatic double layer super capacitor, and or is the tandem compound of two electrostatic double layer super capacitors.
Further, between described electrostatic double layer super capacitor energy-storage unit E and DC power source unit U, be also connected in series a resistance R 1, use
Dash current while initially powering on to reduce electric capacity.
Further, described receiver of remote-control sytem and relay K M1 are attempted by AC power two ends or are attempted by DC power source unit U two ends.
Further, the conversion of described pilot lamp L, auxiliary reclay KM2 and double winding magnetic latching relay the second winding TQ2 is touched
Point loop is attempted by AC power two ends or is attempted by DC power source unit U two ends.
Beneficial effect:
Adopt the anti-electricity-theft control terminal of intelligent grid electric-power metering of the present utility model, by optimal design, adopt double winding magnetic latching relay and capacitor batteries, reduced the daily power consumption of circuit, having reduced thermal value, is miniaturization, the intensive installation of device, and long-time running provides Reliable guarantee.The design of chipless circuit, has avoided the contingent phase mutual interference of telechiric device and anti-electricity-theft detecting unit, improves anti-electricity-theft reliability.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of a kind of embodiment of the utility model,
Fig. 2 is the improved circuit theory diagrams of Fig. 1 embodiment;
Fig. 3 is the improved circuit theory diagrams of the another kind of Fig. 1 embodiment.
embodiment
The anti-electricity-theft control terminal of intelligent grid intelligent grid electric-power metering, its DC power source unit U is connected with AC power, and relay K M1 is connected to both ends of power, and energy-storage units E is connected to DC power source unit U two ends through the normally opened contact KM1 of relay K M1.Only when DC power source unit U has electricity, the normally opened contact KM1 of KM1 could be closed, and then give energy-storage units E charging, and at DC power source unit U during without electricity, the normally opened contact KM1 of KM1 disconnects, and energy-storage units E and prime disconnection prevent the electric discharge of energy-storage units E.Described relay K M1 is attempted by AC power two ends or is attempted by DC power source unit U two ends.
One receiver of remote-control sytem is attempted by both ends of power, and described receiver of remote-control sytem is attempted by AC power two ends or is attempted by DC power source unit U two ends, and receiver of remote-control sytem is controlled by remote control transmitter.Receiver of remote-control sytem can use double relay formula or have single relay of transfer contact.Remote control transmitter can make relay realize the function of conversion, and then realizes the type of the contact conversion of double winding magnetic latching relay, and the transition status of its relay can be controlled and keep by hard to bear remote control transmitter.One of them key definition of remote control transmitter is maintenance function, and the state of the relay corresponding with it is normally closed, that is: the controlled disconnection in ，YK2 contact when having just when upkeep operation, and when metering chamber door is opened, can not report to the police in loop, and isolating switch can not trip.Another is defined as work or reset function another key of remote control transmitter, presses this key, and YK1 action, can return to burglar-proof electric circuit normal detected state, and when having stealing to occur, isolating switch can trip.
The two ends that are attempted by energy-storage units E after normally opened contact YK1 with relay connects are controlled in the reset of double winding magnetic latching relay the first winding TQ1 and receiver of remote-control sytem, the maintenance of double winding magnetic latching relay the second winding TQ2 and receiver of remote-control sytem is attempted by the two ends of energy-storage units E after controlling and connecting with relay normally closed contact YK2, the gate controlled switch CK that is installed on batch meter, the normally opened contact TQ2 of double winding magnetic latching relay the second winding TQ2 is used for connecting control circuit breaker trip loop.
Under the normal detected state of civil power, double winding magnetic latching relay the second winding TQ2 contact TQ2 is normally open, and the trip(ping) circuit of its rear class can not be connected, power circuit normal power supply.When there being people to open metering chamber door while carrying out stealing, the gate controlled switch CK on chamber door becomes normally closedly from often opening, and double winding magnetic latching relay the second winding TQ2 get electricity ， contact change and keeps, the trip(ping) circuit power-off of tripping.Because double winding magnetic latching relay the second winding TQ2 contact is able to self-sustaining, even if close the door again, can not restore electricity yet.At this moment need power department to use remote control transmitter transmitted signal, make the reset control relay of receiver of remote-control sytem, that is it is closed with the normally opened contact YK1 of relay to detect stealing, double winding magnetic latching relay the first winding TQ1 obtains electric, double winding magnetic latching relay the second winding TQ2 contact discharges and self-sustaining, circuit breaker trip signal relief, performing closes a floodgate prepares, and by operating breaker switch knob, can restore electricity.After shutting up the door carefully, gate controlled switch CK often becomes and opens, and again recovers to detect stealing state.
When civil power is during without electricity, energy-storage units E provides power supply for stealing loop, double winding magnetic latching relay provides action power by energy-storage units E, now when there being people to open door while carrying out stealing, the gate controlled switch CK of metering on chamber door from often open become normally closed, double winding magnetic latching relay the second winding TQ2 obtains electric, the closing of contact also keeps, although circuit breaker trip loop is without the electricity power-off of can not tripping, but isolating switch keeps the waiting status of separating brake always, once incoming call, isolating switch will trip, and it is as the evidence that stealing occurs.If want, restore electricity, reason is the same.
Energy-storage units E described in described energy-storage units E can be accumulator, such as lead-acid accumulator, lithium battery etc., or electrostatic double layer super capacitor C.The tandem compound of two electrostatic double layer super capacitor C3, C4, can improve the operating voltage of energy-storage units E.
Super capacitance cell is again gold electric capacity, farad capacitor, and it carrys out energy storage by polarization electrolyte.Because chemical reaction does not occur for the process of its energy storage, therefore this thermal energy storage process is reversible, just because of this ultracapacitor can repeated charge hundreds thousand of times.Super capacitor is generally used active carbon electrode material, has adsorption area large, and static stores many features
Between the other end of described energy-storage units E and the other end of DC power source unit U, be connected in series another normally opened contact KM1 of relay K M1, can prevent more reliably the situation of discharge current.
Further improve, the normally closed contact of the transfer contact of double winding magnetic latching relay the second winding TQ2, normally opened contact are connected with pilot lamp L, auxiliary reclay KM2 one end respectively, the other end of pilot lamp L, auxiliary reclay KM2 is connected with power supply respectively, the common port of transfer contact and the other end of power supply of double winding magnetic latching relay the second winding TQ2 are connected, and auxiliary reclay KM2 normally opened contact is used for connecting control circuit breaker trip loop.This design can be used pilot lamp L as a kind of indication of normal power supply, and power supply department does not have stealing to occur by the luminous judgement of viewing lamp L.When power supply department tour finds that pilot lamp L does not work, just can judge that locality has stealing electricity phenomenon to occur.By auxiliary reclay KM2, can improve the ability that drives load, extend the serviceable life of double winding magnetic latching relay contact.
For the improvement that drives double winding magnetic latching relay coil, after connecting with capacitor C 3, double winding magnetic latching relay the first winding TQ1 is attempted by energy-storage units E two ends, and double winding magnetic latching relay the second winding TQ2 controls and is attempted by energy-storage units E two ends after connecting by relay normally closed contact YK2, the gate controlled switch CK that is installed on batch meter, capacitor C 4 with the maintenance of receiver of remote-control sytem.Utilize electric capacity index charge characteristic, double winding magnetic latching relay completes after adhesive, and no matter whether loop is connected, and due to the obstruct of electric capacity, the current sinking in loop reduces greatly, is beneficial to the serviceable life that extends energy-storage units E.
If in capacitor C 3, capacitor C 4 two ends parallel resistances, be beneficial to the electric discharge of accelerating capacitor C 3, capacitor C 4, can guarantee double wrap
The needs of set magnetic latching relay coil frequent operation.
Between energy-storage units E and DC power source unit U, be also connected in series a resistance R 1, the impact while initially powering in order to reduce electric capacity
Electric current.
Adopt the anti-electricity-theft control terminal of intelligent grid electric-power metering of the present utility model, adopt double winding magnetic latching relay and capacitor batteries, the daily power consumption of circuit is extremely low, has reduced thermal value, can realize intensive encapsulation, and long-time running is reliable and stable.Outside whole circuit place receiver of remote-control sytem, reduce the design of chip circuit, avoided the contingent phase mutual interference of telechiric device and anti-electricity-theft detecting unit, improve anti-electricity-theft reliability.
Although this patent is explained with reference to preferred embodiment and accompanying drawing, non-limiting yet above-mentioned explanation should be considered as illustrative, variation and modification that the person that is familiar with technique makes according to spirit of the present utility model, all should belong to the protection domain of this patent.
Claims (10)
1. the anti-electricity-theft control terminal of intelligent grid electric-power metering, it is characterized in that: DC power source unit (U) is connected with AC power, relay (KM1) is connected to both ends of power, and energy-storage units (E) is connected to DC power source unit (U) two ends through the normally opened contact (KM1) of relay (KM1); One receiver of remote-control sytem is attempted by both ends of power, and receiver of remote-control sytem is controlled by remote control transmitter; Double winding magnetic latching relay the first winding (TQ1) is attempted by the two ends of energy-storage units (E) after connecting with the normally opened contact (YK1) of relay with the reset control of receiver of remote-control sytem; The maintenance of double winding magnetic latching relay the second winding (TQ2) and receiver of remote-control sytem is attempted by the two ends of energy-storage units (E) after controlling and connecting with relay normally closed contact (YK2), the gate controlled switch (CK) that is installed on batch meter, the normally opened contact (TQ2) of double winding magnetic latching relay the second winding (TQ2) is for connecting control circuit breaker trip loop.
2. the anti-electricity-theft control terminal of intelligent grid electric-power metering according to claim 1, is characterized in that: another normally opened contact (KM1) that is connected in series relay (KM1) between the other end of described energy-storage units (E) and the other end of DC power source unit (U).
3. the anti-electricity-theft control terminal of intelligent grid electric-power metering according to claim 1, is characterized in that:
The normally closed contact of the transfer contact of double winding magnetic latching relay the second winding (TQ2), normally opened contact are connected with one end of pilot lamp (L), auxiliary reclay (KM2) respectively, the other end of pilot lamp (L), auxiliary reclay (KM2) is connected with power supply respectively, the common port of transfer contact and the other end of power supply of double winding magnetic latching relay the second winding (TQ2) are connected, and auxiliary reclay (KM2) normally opened contact is used for connecting control circuit breaker trip loop.
4. the anti-electricity-theft control terminal of intelligent grid electric-power metering according to claim 1, is characterized in that: described double winding magnetic latching relay the first winding (TQ1) is attempted by energy-storage units (E) two ends after connecting with electric capacity (C3).
5. according to the anti-electricity-theft control terminal of intelligent grid electric-power metering described in claim 1, it is characterized in that: double winding magnetic latching relay the second winding (TQ2) is controlled and after connecting, is attempted by energy-storage units (E) two ends by relay normally closed contact (YK2), the gate controlled switch (CK) that is installed on batch meter, capacitor C 4 with the maintenance of receiver of remote-control sytem.
6. according to the anti-electricity-theft control terminal of intelligent grid electric-power metering described in claim 4 or 5, its feature
Be: described electric capacity (C3), electric capacity (C4) two ends parallel resistance, for the electric discharge of electric capacity (C3), electric capacity (C4).
7. the anti-electricity-theft control terminal of intelligent grid electric-power metering according to claim 1, is characterized in that: described energy-storage units (E) is electrostatic double layer super capacitor (C).
8. the anti-electricity-theft control terminal of intelligent grid electric-power metering according to claim 7, is characterized in that: described electrostatic double layer super capacitor (C) is the tandem compound of two electrostatic double layer super capacitors (C1), electric capacity (C2).
9. according to the anti-electricity-theft control terminal of intelligent grid electric-power metering described in claim 7 or 8, it is characterized in that: between described energy-storage units (E) and DC power source unit (U), be also connected in series a resistance (R1), the dash current while initially powering in order to reduce electric capacity.
10. according to the anti-electricity-theft control terminal of intelligent grid electric-power metering described in claim 1, it is characterized in that: described receiver of remote-control sytem and relay (KM1) are attempted by AC power two ends or are attempted by DC power source unit (U) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320359635.1U CN203396808U (en) | 2013-06-23 | 2013-06-23 | Smart power grid power metering power stealing prevention control terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320359635.1U CN203396808U (en) | 2013-06-23 | 2013-06-23 | Smart power grid power metering power stealing prevention control terminal |
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| Publication Number | Publication Date |
|---|---|
| CN203396808U true CN203396808U (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320359635.1U Expired - Fee Related CN203396808U (en) | 2013-06-23 | 2013-06-23 | Smart power grid power metering power stealing prevention control terminal |
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| CN (1) | CN203396808U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237587A (en) * | 2013-06-23 | 2014-12-24 | 山东亿玛信诺电气有限公司 | Smart power grid power measurement and electricity larceny prevention control terminal |
| CN109743050A (en) * | 2019-03-22 | 2019-05-10 | 广东美的制冷设备有限公司 | Drive control circuit and household appliance |
-
2013
- 2013-06-23 CN CN201320359635.1U patent/CN203396808U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237587A (en) * | 2013-06-23 | 2014-12-24 | 山东亿玛信诺电气有限公司 | Smart power grid power measurement and electricity larceny prevention control terminal |
| CN109743050A (en) * | 2019-03-22 | 2019-05-10 | 广东美的制冷设备有限公司 | Drive control circuit and household appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20160623 |
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| CF01 | Termination of patent right due to non-payment of annual fee |