CN104880591A - TV disconnection electric energy measuring recalling device - Google Patents
TV disconnection electric energy measuring recalling device Download PDFInfo
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- CN104880591A CN104880591A CN201510344680.3A CN201510344680A CN104880591A CN 104880591 A CN104880591 A CN 104880591A CN 201510344680 A CN201510344680 A CN 201510344680A CN 104880591 A CN104880591 A CN 104880591A
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Abstract
The invention provides a TV (voltage transformer) disconnection electric energy measuring recalling device, and relates to the field of electric energy measuring. The device solves problems that voltage loss of voltage acquired by an electric energy measuring device caused by TV disconnection and other reasons, so electric quantity of a period cannot be measured and voltage loss time cannot be accurately calculated, and result in certain economical loss. The device comprises two transformers, a relay, two bridge rectifier circuits respectively formed by connecting four diodes in parallel, two three-end voltage-stabilizing integrated circuits, a standby DC power supply, flicker sound equipment, a counting storage, two audions, three resistors, and six capacitors. Through a recalling reasoning technology, the recalling circuit is designed. On the premise that normal operation of a transformer substation is not influenced, the device can accurately make up unrecorded electric quantity. The device is characterized by safe, simple, and efficient. The device can effectively prevent electric quantity loss, so as to reduce economical loss to a large extent.
Description
Technical field
The present invention relates to Electric Energy Metering Technology field, be specifically related to TV broken string electric energy metrical and recollect device, when being the bus non-faulting electric energy acquisition decompressions such as a kind of TV (voltage transformer (VT)) broken string, device is recollected in metering.
Background technology
The connection of the electrical equipment such as the connection of voltage power distribution equipment at different levels and transformer and corresponding power distribution equipment in transformer station, mostly adopt bare conductor or the twisted wire of rectangle or round section, this is referred to as bus, and bus is total wire of transformer station's transmission of electric energy.Bus generally adopts the copper of high conductivity, alumina based material is made, in order to collect, to distribute and to transmit electric energy.By bus, the electric energy that generator, transformer or rectifier export is flowed to each user or other electric substations, electric energy meter 12 and substation bus bar voltage transformer (VT) 13 are by substation bus bar is connect element.
The reason that substation bus bar has a power failure generally has: the element that connects (as substation bus bar voltage transformer (VT) 13 etc.) fault on the fault of bus own, bus, protection or switch failure, external power source full cut-off cause.Whether substation bus bar breaks down, and needs to carry out judgement accident conditions according to instrument instruction, protection and aut.eq. action situation, switching signal and accident phenomenon (as flame, explosive sound etc.) etc., and adopts an effective measure rapidly.
When causing bus non-faulting Non voltage output due to reasons such as substation bus bar TV (voltage transformer (VT)) broken strings, due to electric power meter decompression, the electricity in this period can be caused to measure and the time of decompression cannot accurately calculate, bring impact to the economical operation of transformer station and Controlling line loss, cause certain economic loss.Therefore, in the urgent need to developing a kind of device carrying out electric energy metrical when TV (voltage transformer (VT)) breaks and recollect.
Summary of the invention
Gather voltage decompression cause the electricity in this period to measure and the decompression time cannot accurately calculate to effectively solve the electric power meter caused due to reasons such as TV broken strings, thus cause the problem of certain economic loss, the invention provides a kind of TV broken string electric energy metrical and recollect device.
The technical scheme that the present invention adopts for technical solution problem is as follows:
A kind of TV broken string electric energy metrical provided by the invention recollects device, comprise: the first transformer be connected with 220V power electric, the second transformer be connected with electrical energy meter electricity, relay, by the first diode ~ the 4th diode the first bridge rectifier circuit formed parallel with one another, by the 5th diode ~ the 8th diode the second bridge rectifier circuit formed parallel with one another, first circuit of three-terminal voltage-stabilizing integrated, second circuit of three-terminal voltage-stabilizing integrated, direct supply for subsequent use, flash of light sound equipment, count information device, first triode, second triode, first resistance ~ the 3rd resistance, first electric capacity ~ the 6th electric capacity, 9th diode,
Described first bridge rectifier circuit, the first electric capacity, the second electric capacity are in parallel successively, described second electric capacity two ends are electrically connected with the input end of the first circuit of three-terminal voltage-stabilizing integrated and output terminal respectively, described 3rd electric capacity two ends are electrically connected with two output terminals of the first circuit of three-terminal voltage-stabilizing integrated respectively, and described 3rd electric capacity two ends are also electrically connected with power-level end with the switch terminals of direct supply for subsequent use respectively;
Described second bridge rectifier circuit, the 4th electric capacity, the 5th electric capacity are in parallel successively, described 5th electric capacity two ends are electrically connected with the input end of the second circuit of three-terminal voltage-stabilizing integrated and output terminal respectively, and described 6th electric capacity two ends are electrically connected with two output terminals of the second circuit of three-terminal voltage-stabilizing integrated respectively;
Described second resistance one end is electrically connected with the output terminal of the second circuit of three-terminal voltage-stabilizing integrated, and the described second resistance other end is electrically connected with the base stage of the first triode; Described 3rd resistance one end is electrically connected with the output terminal of the first circuit of three-terminal voltage-stabilizing integrated, and the 3rd resistance other end is electrically connected with the emitter of the first triode; First resistance one end is electrically connected with the emitter of the first triode, and the first resistance other end is electrically connected with the base stage of the second triode;
Described relay and the 9th diodes in parallel, coil one end of described relay is electrically connected with the emitter of the second triode, and the coil other end of described relay is electrically connected with the input end of the first circuit of three-terminal voltage-stabilizing integrated; Section Point and the 3rd node one end of described relay are all electrically connected with the input end of the first circuit of three-terminal voltage-stabilizing integrated, and the other end of Section Point is electrically connected with flash of light sound equipment, and the other end of the 3rd node is electrically connected with count information device; The first node of described relay is arranged between substation bus bar voltage transformer (VT) and electric energy meter.
Further, the 220V voltage step-down that 220V power supply exports by described first transformer is to 7.5V alternating current, successively through the first bridge rectifier circuit rectification be direct current, export as 5V DC voltage through the first circuit of three-terminal voltage-stabilizing integrated, when 220V power outage, the switch of direct supply for subsequent use closes as its power supply, ensures there is working power all the time.
Further, when substation bus bar voltage transformer (VT) voltage is normal, described electric energy meter voltage input end is 100V voltage, second transformer one time output voltage is 100V, secondary output voltage is 7.5V, successively through the second bridge rectifier circuit rectification be 7.5V DC voltage, export as stable 5V DC voltage through the second circuit of three-terminal voltage-stabilizing integrated, now the base stage of the first triode is noble potential, first triode saturation conduction, the base stage of the second triode is caused to be electronegative potential, second triode cut-off, described relay coil both sides voltage is identical does not have electric current to pass through, three nodes of relay are all in off-state, the voltage of substation bus bar voltage transformer (VT) does not input electric energy meter, now, electric energy meter is normal operating conditions, flash of light sound equipment does not work and does not flash and audible alarm, count information device does not work and not-time.
Further, it is described when substation bus bar voltage transformer disconnection causes electric energy meter voltage input end decompression, an output voltage of the second transformer and secondary output voltage are 0, the output of the second circuit of three-terminal voltage-stabilizing integrated is 0, now, the base stage of the first triode is electronegative potential, first triode is in cut-off state, and the base stage of the second triode is noble potential, second triode operation is in saturation conduction state, relay coil has electric current to pass through, the first node of relay closes, the voltage of substation bus bar voltage transformer (VT) is input to electric energy meter, electric energy meter is made to continue gage work, the closed flash of light sound equipment that makes of the Section Point of relay flashes with sound equipment to operations staff's alarm, the closed count information device that starts of 3rd node of relay starts to carry out decompression timing, so that operations staff transfers the decompression time at any time.
Further, described relay model is: JZX-12 type.
Further, described first circuit of three-terminal voltage-stabilizing integrated and the second circuit of three-terminal voltage-stabilizing integrated all adopt positive voltage to export 7805 series.
Further, the resistance of described first resistance is 3k Ω, the resistance of the second resistance is 3k Ω, the resistance of the 3rd resistance is 1k Ω.
Further, the capacitance of described first electric capacity is 1000pF, the capacitance of the second electric capacity is 220 μ F, the capacitance of the 3rd electric capacity is 220 μ F, the capacitance of the 4th electric capacity is 1000pF, the capacitance of the 5th electric capacity is 220 μ F, the capacitance of the 6th electric capacity is 220 μ F.
Further, described first triode and the second triode are NPN type triode, and model is: C1815; The model of described first diode, the second diode, the 3rd diode, the 4th diode is: 1N4007; The model of described 5th diode, the 6th diode, the 7th diode, the 8th diode, the 9th diode is: 4148.
Further, described first transformer voltage ratio is 220/7.5V; Described second transformer voltage ratio is 100/7.5V.
The invention has the beneficial effects as follows: during TV broken string of the present invention, electric energy metrical recollects device, circuit is recollected by recollecting inference technology design, not affecting under the prerequisite that transformer station normally runs, the electricity of few meter can accurately be remedied, there is safety, succinct, feature efficiently.When adopting TV of the present invention to break, electric energy metrical is recollected bus that device causes reasons such as substation bus bar voltage transformer disconnections and is gathered decompression electric energy and carry out metering and recollect, and effectively can avoid electric quantity loss, thus reduce economic loss to a great extent.
Accompanying drawing explanation
Fig. 1 is the structural representation that TV of the present invention broken string electric energy metrical recollects device.
In figure: 1, first transformer, 2, second transformer, 3, relay, 4, first bridge rectifier circuit, 5, second bridge rectifier circuit, 6, first circuit of three-terminal voltage-stabilizing integrated, 7, second circuit of three-terminal voltage-stabilizing integrated, 8, direct supply for subsequent use, 9, flash of light sound equipment, 10, count information device, 11, 220V power supply, 12, electric energy meter, 13, substation bus bar voltage transformer (VT), VT1, first triode, VT2, second triode, R1 ~ R3, first resistance ~ the 3rd resistance, C1 ~ C6, first electric capacity ~ the 6th electric capacity, D1 ~ D9, first diode ~ the 9th diode.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details.
As shown in Figure 1, electric energy meter 12 and substation bus bar voltage transformer (VT) 13 are by substation bus bar is connect element.TV broken string electric energy metrical of the present invention recollects device, mainly through circuit realiration, comprising: the first transformer 1, second transformer 2, relay 3, first bridge rectifier circuit 4, second bridge rectifier circuit 5, first circuit of three-terminal voltage-stabilizing integrated 6, second circuit of three-terminal voltage-stabilizing integrated 7, direct supply for subsequent use 8, flash of light sound equipment 9, count information device 10, first triode VT1, the second triode VT2, the first resistance R1, the second resistance R2, the 3rd resistance R3, the first electric capacity C1 ~ the 6th electric capacity C6, the 9th diode D9.
First bridge rectifier circuit 4 by the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4 is parallel with one another forms; Second bridge rectifier circuit 5 by the 5th diode D5, the 6th diode D6, the 7th diode D7, the 8th diode D8 is parallel with one another forms.
First transformer 1 is electrically connected with existing 220V power supply 11, first bridge rectifier circuit 4, first electric capacity C1, the second electric capacity C2 are connected in parallel successively, second electric capacity C2 two ends are electrically connected with the input end 61 of the first circuit of three-terminal voltage-stabilizing integrated 6 and output terminal 62 respectively, 3rd electric capacity C3 two ends are electrically connected with two output terminals 62,63 of the first circuit of three-terminal voltage-stabilizing integrated 6 respectively, and the 3rd electric capacity C3 two ends are also electrically connected with power-level end with the switch terminals of direct supply 8 for subsequent use respectively.
Second transformer 2 is electrically connected with the electric energy meter 12 on substation bus bar, second bridge rectifier circuit 5, the 4th electric capacity C4, the 5th electric capacity C5 are connected in parallel successively, 5th electric capacity C5 two ends are electrically connected with the input end 71 of the second circuit of three-terminal voltage-stabilizing integrated 7 and output terminal 72 respectively, and the 6th electric capacity C6 two ends are electrically connected with two output terminals 72,73 of the second circuit of three-terminal voltage-stabilizing integrated 7 respectively.
Second resistance R2 one end is electrically connected with the output terminal 73 of the second circuit of three-terminal voltage-stabilizing integrated 7, and the second resistance R2 other end is electrically connected with the base stage of the first triode VT1; 3rd resistance R3 one end is electrically connected with the output terminal 63 of the first circuit of three-terminal voltage-stabilizing integrated 6, and the 3rd resistance R3 other end is electrically connected with the emitter of the first triode VT1; First resistance R1 one end is electrically connected with the emitter of the first triode VT1, and the first resistance R1 other end is electrically connected with the base stage of the second triode VT2.
Relay 3 is in parallel with the 9th diode D9, and coil one end of relay 3 is electrically connected with the emitter of the second triode VT2, and the coil other end of relay 3 is electrically connected with the input end 61 of the first circuit of three-terminal voltage-stabilizing integrated 6; Section Point J02, the 3rd node J03 one end of relay 3 are all electrically connected with the input end 61 of the first circuit of three-terminal voltage-stabilizing integrated 6, and the Section Point J02 other end is electrically connected with flash of light sound equipment 9, and the 3rd node J03 other end is electrically connected with count information device 10.
Substation bus bar voltage transformer (VT) 13 on substation bus bar is electrically connected with electric energy meter 12, is also provided with the first node J01 of relay 3 between substation bus bar voltage transformer (VT) 13 and electric energy meter 12.
TV broken string electric energy metrical of the present invention recollects device, for bus loss of pressure electric energy metrical during bus non-faulting Non voltage output rear to transformer station TV (voltage transformer (VT)) broken string, continuation is normally measured electricity by electric energy meter 12, act on flash of light sound equipment 9 alarm notification operations staff simultaneously, and remember the time of decompression, to transfer at any time.
The 220V voltage step-down that 220V power supply 11 exports by the first transformer 1 is to 7.5V alternating current, successively through the first bridge rectifier circuit 4 rectification be direct current, export as stable 5V DC voltage through the first circuit of three-terminal voltage-stabilizing integrated 6, when in transformer station, 220V power supply 11 has a power failure, the K switch of direct supply 8 for subsequent use closes as its power supply, ensures there is working power all the time.
When substation bus bar voltage transformer (VT) 13 voltage is normal, electric energy meter 12 voltage input end is 100V voltage, second transformer 2 one times output voltage is 100V, secondary output voltage is 7.5V, successively through the second bridge rectifier circuit 5 rectification be 7.5V DC voltage, export as stable 5V DC voltage through the second circuit of three-terminal voltage-stabilizing integrated 7, now the base stage of the first triode VT1 is noble potential, first triode VT1 saturation conduction, the base stage of the second triode VT2 is caused to be electronegative potential, second triode VT2 ends, relay 3 coil both sides voltage is identical does not have electric current to pass through, three node J01 of relay 3, J02, J03 is all in off-state, the voltage of substation bus bar voltage transformer (VT) 13 does not input electric energy meter 12, now, electric energy meter 12 is normal operating conditions, flash of light sound equipment 9 does not work and does not flash and audible alarm, count information device 10 does not work and not-time.
When substation bus bar voltage transformer (VT) 13 broken string causes electric energy meter 12 voltage input end decompression, an output voltage of the second transformer 2 and secondary output voltage are 0, the output of the second circuit of three-terminal voltage-stabilizing integrated 7 is 0, now, the base stage of the first triode VT1 is electronegative potential, first triode VT1 is in cut-off state, and the base stage of the second triode VT2 is noble potential, second triode VT2 works in saturation conduction state, relay 3 coil has electric current to pass through, the first node J01 of relay 3 closes, the voltage of substation bus bar voltage transformer (VT) 13 is input to electric energy meter 12, electric energy meter 12 is made to continue gage work, the closed flash of light sound equipment 9 that makes of the Section Point J02 of relay 3 flashes with sound equipment to operations staff's alarm, the closed count information device 10 that starts of 3rd node J03 of relay 3 starts to carry out decompression timing, so that operations staff transfers the decompression time at any time.
In present embodiment, said relay 3 model is: JZX-12 type.
In present embodiment, 7805 series that said first circuit of three-terminal voltage-stabilizing integrated 6 and the second circuit of three-terminal voltage-stabilizing integrated 7 all adopt positive voltage to export.
In present embodiment, the resistance of said first resistance R1 is 3k Ω, the resistance of the second resistance R2 is 3k Ω, the resistance of the 3rd resistance R3 is 1k Ω.
In present embodiment, the capacitance of said first electric capacity C1 is 1000pF, the capacitance of the second electric capacity C2 is 220 μ F, the capacitance of the 3rd electric capacity C3 is 220 μ F, the capacitance of the 4th electric capacity C4 is 1000pF, the capacitance of the 5th electric capacity C5 is 220 μ F, the capacitance of the 6th electric capacity C6 is 220 μ F.
In present embodiment, said first triode VT1 and the second triode VT2 is NPN type triode, and model is: C1815.
In present embodiment, the model of said first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4 is: 1N4007; The model of said 5th diode D5, the 6th diode D6, the 7th diode D7, the 8th diode D8, the 9th diode D9 is: 4148.
In present embodiment, said first transformer 1 no-load voltage ratio is 220/7.5V; Said second transformer 2 no-load voltage ratio is 100/7.5V.
Claims (10)
1.TV broken string electric energy metrical recollects device, it is characterized in that, comprise: the first transformer (1) be electrically connected with 220V power supply (11), the second transformer (2) be electrically connected with electric energy meter (12), relay (3), by the first diode (D1) ~ the 4th diode (D4) the first bridge rectifier circuit (4) formed parallel with one another, by the 5th diode (D5) ~ the 8th diode (D8) the second bridge rectifier circuit (5) formed parallel with one another, first circuit of three-terminal voltage-stabilizing integrated (6), second circuit of three-terminal voltage-stabilizing integrated (7), direct supply for subsequent use (8), flash of light sound equipment (9), count information device (10), first triode (VT1), second triode (VT2), first resistance (R1) ~ the 3rd resistance (R3), first electric capacity (C1) ~ the 6th electric capacity (C6), 9th diode (D9),
Described first bridge rectifier circuit (4), the first electric capacity (C1), the second electric capacity (C2) are in parallel successively, described second electric capacity (C2) two ends are electrically connected with the input end (61) of the first circuit of three-terminal voltage-stabilizing integrated (6) and output terminal (62) respectively, described 3rd electric capacity (C3) two ends are electrically connected with two output terminals (62,63) of the first circuit of three-terminal voltage-stabilizing integrated (6) respectively, and described 3rd electric capacity (C3) two ends are also electrically connected with power-level end with the switch terminals of direct supply for subsequent use (8) respectively;
Described second bridge rectifier circuit (5), the 4th electric capacity (C4), the 5th electric capacity (C5) are in parallel successively, described 5th electric capacity (C5) two ends are electrically connected with the input end (71) of the second circuit of three-terminal voltage-stabilizing integrated (7) and output terminal (72) respectively, and described 6th electric capacity (C6) two ends are electrically connected with two output terminals (72,73) of the second circuit of three-terminal voltage-stabilizing integrated (7) respectively;
Described second resistance (R2) one end is electrically connected with the output terminal (73) of the second circuit of three-terminal voltage-stabilizing integrated (7), and described second resistance (R2) other end is electrically connected with the base stage of the first triode (VT1); Described 3rd resistance (R3) one end is electrically connected with the output terminal (63) of the first circuit of three-terminal voltage-stabilizing integrated (6), and the 3rd resistance (R3) other end is electrically connected with the emitter of the first triode (VT1); First resistance (R1) one end is electrically connected with the emitter of the first triode (VT1), and the first resistance (R1) other end is electrically connected with the base stage of the second triode (VT2);
Described relay (3) is in parallel with the 9th diode (D9), coil one end of described relay (3) is electrically connected with the emitter of the second triode (VT2), and the coil other end of described relay (3) is electrically connected with the input end (61) of the first circuit of three-terminal voltage-stabilizing integrated (6); Section Point (J02), the 3rd node (J03) one end of described relay (3) are all electrically connected with the input end (61) of the first circuit of three-terminal voltage-stabilizing integrated (6), Section Point (J02) other end is electrically connected with flash of light sound equipment (9), and the 3rd node (J03) other end is electrically connected with count information device (10); The first node (J01) of described relay (3) is arranged between substation bus bar voltage transformer (VT) (13) and electric energy meter (12).
2. TV broken string electric energy metrical according to claim 1 recollects device, it is characterized in that, the 220V voltage step-down that 220V power supply (11) exports by described first transformer (1) is to 7.5V alternating current, successively through the first bridge rectifier circuit (4) rectification be direct current, export as 5V DC voltage through the first circuit of three-terminal voltage-stabilizing integrated (6), when 220V power supply (11) has a power failure, the switch (K) of direct supply for subsequent use (8) closes as its power supply, ensures there is working power all the time.
3. TV broken string electric energy metrical according to claim 1 recollects device, it is characterized in that, when substation bus bar voltage transformer (VT) (13) voltage is normal, described electric energy meter (12) voltage input end is 100V voltage, second transformer (2) times output voltage is 100V, secondary output voltage is 7.5V, successively through the second bridge rectifier circuit (5) rectification be 7.5V DC voltage, export as stable 5V DC voltage through the second circuit of three-terminal voltage-stabilizing integrated (7), now the base stage of the first triode (VT1) is noble potential, first triode (VT1) saturation conduction, the base stage of the second triode (VT2) is caused to be electronegative potential, second triode (VT2) ends, described relay (3) coil both sides voltage is identical does not have electric current to pass through, three node (J01 of relay (3), J02, J03) off-state is in, the voltage of substation bus bar voltage transformer (VT) (13) does not input electric energy meter (12), now, electric energy meter (12) is normal operating conditions, flash of light sound equipment (9) does not work and does not flash and audible alarm, count information device (10) does not work and not-time.
4. TV broken string electric energy metrical according to claim 1 recollects device, it is characterized in that, it is described when substation bus bar voltage transformer (VT) (13) broken string causes electric energy meter (12) voltage input end decompression, an output voltage of the second transformer (2) and secondary output voltage are 0, the output of the second circuit of three-terminal voltage-stabilizing integrated (7) is 0, now, the base stage of the first triode (VT1) is electronegative potential, first triode (VT1) is in cut-off state, and the base stage of the second triode (VT2) is noble potential, second triode (VT2) works in saturation conduction state, relay (3) coil has electric current to pass through, the first node J01 of relay (3) closes, the voltage of substation bus bar voltage transformer (VT) (13) is input to electric energy meter (12), electric energy meter (12) is made to continue gage work, the closed flash of light sound equipment (9) that makes of the Section Point (J02) of relay (3) flashes with sound equipment to operations staff's alarm, closed count information device (10) that starts of 3rd node (J03) of relay (3) starts to carry out decompression timing, so that operations staff transfers the decompression time at any time.
5. TV broken string electric energy metrical according to claim 1 recollects device, and it is characterized in that, described relay (3) model is: JZX-12 type.
6. TV broken string electric energy metrical according to claim 1 recollects device, it is characterized in that, 7805 series that described first circuit of three-terminal voltage-stabilizing integrated (6) and the second circuit of three-terminal voltage-stabilizing integrated (7) all adopt positive voltage to export.
7. TV broken string electric energy metrical according to claim 1 recollects device, it is characterized in that, the resistance of described first resistance (R1) is 3k Ω, the resistance of the second resistance (R2) is 3k Ω, the resistance of the 3rd resistance (R3) is 1k Ω.
8. TV broken string electric energy metrical according to claim 1 recollects device, it is characterized in that, the capacitance of described first electric capacity (C1) is 1000pF, the capacitance of the second electric capacity (C2) is 220 μ F, the capacitance of the 3rd electric capacity (C3) is 220 μ F, the capacitance of the 4th electric capacity (C4) is 1000pF, the capacitance of the 5th electric capacity (C5) is 220 μ F, the capacitance of the 6th electric capacity (C6) is 220 μ F.
9. TV broken string electric energy metrical according to claim 1 recollects device, and it is characterized in that, described first triode (VT1) and the second triode (VT2) are NPN type triode, and model is: (C1) 815; The model of described first diode (D1), the second diode (D2), the 3rd diode (D3), the 4th diode (D4) is: 1N4007; The model of described 5th diode (D5), the 6th diode (D6), the 7th diode (D7), the 8th diode (D8), the 9th diode (D9) is: 4148.
10. TV broken string electric energy metrical according to claim 1 recollects device, and it is characterized in that, described first transformer (1) no-load voltage ratio is 220/7.5V; Described second transformer (2) no-load voltage ratio is 100/7.5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344680.3A CN104880591B (en) | 2015-06-19 | 2015-06-19 | TV broken string electric energy metricals recollect device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344680.3A CN104880591B (en) | 2015-06-19 | 2015-06-19 | TV broken string electric energy metricals recollect device |
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| CN104880591A true CN104880591A (en) | 2015-09-02 |
| CN104880591B CN104880591B (en) | 2018-01-09 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2031099U (en) * | 1988-01-05 | 1989-01-18 | 唐伯伦 | "resonant mutual-inductance" series current inducting type power-saving electricity meter |
| CN2066991U (en) * | 1989-09-27 | 1990-12-05 | 申卫民 | Voltage drop recorder |
| US20050017734A1 (en) * | 2001-12-28 | 2005-01-27 | Carlo Gemme | Method for on-line calibration of low accuracy voltage sensor through communication bus |
| CN102087915A (en) * | 2009-12-04 | 2011-06-08 | 黑龙江省电力科学研究院 | Method for transforming secondary loop of voltage transformer of electric energy metering device |
| CN204789698U (en) * | 2015-06-19 | 2015-11-18 | 孙铭悦 | Device is recollected in measurement of TV broken string electric energy |
-
2015
- 2015-06-19 CN CN201510344680.3A patent/CN104880591B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2031099U (en) * | 1988-01-05 | 1989-01-18 | 唐伯伦 | "resonant mutual-inductance" series current inducting type power-saving electricity meter |
| CN2066991U (en) * | 1989-09-27 | 1990-12-05 | 申卫民 | Voltage drop recorder |
| US20050017734A1 (en) * | 2001-12-28 | 2005-01-27 | Carlo Gemme | Method for on-line calibration of low accuracy voltage sensor through communication bus |
| CN102087915A (en) * | 2009-12-04 | 2011-06-08 | 黑龙江省电力科学研究院 | Method for transforming secondary loop of voltage transformer of electric energy metering device |
| CN204789698U (en) * | 2015-06-19 | 2015-11-18 | 孙铭悦 | Device is recollected in measurement of TV broken string electric energy |
Non-Patent Citations (1)
| Title |
|---|
| 顾祥和 等: "电压互感器二次回路断线对继电保护装置的影响", 《江苏电机工程》 * |
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Inventor after: Sun Mingyue Inventor after: Sun Junbang Inventor after: Li Xiaohui Inventor before: Sun Mingyue |
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