CN101281693B - Device for simulating false wiring of electric energy metering equipment - Google Patents
Device for simulating false wiring of electric energy metering equipment Download PDFInfo
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- CN101281693B CN101281693B CN2007100932519A CN200710093251A CN101281693B CN 101281693 B CN101281693 B CN 101281693B CN 2007100932519 A CN2007100932519 A CN 2007100932519A CN 200710093251 A CN200710093251 A CN 200710093251A CN 101281693 B CN101281693 B CN 101281693B
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Abstract
The invention relates to a junction device for the electrician training, especially an electric energy metering mechanism false wiring simulator for advancing the business skill, the skill tranning, the competition judgement, the training demo of the electric energy employees, including a current false wiring simulator, a voltage false wiring simulator, wherein a three-phase current of the current false wiring simulator and the voltage false wiring simulator and the output end of the voltage is respectively connected with the output end of the three-phase virtual current, the virtual voltage of the peripheral equipment virtual loading power device, while the output end of the three-phase current and voltage of the voltage false wiring simulator and the current false wiring simulator is respectively connected with the input end of the current and the voltage of the peripheral equipment electric energy metering mechanism. The setting of the false wiring is only to toggle the corresponding switch of the current and the voltage false wiring simulators: the single false wiring or the combined false wiring of the current and the voltage. The invention has simple structure, reliable work, convenient operation, high efficiency, fast change of a plurality of false wiring ways.
Description
Technical field
The present invention relates to the termination that a kind of electrician trains usefulness, particularly a kind of in order to the electric power worker is promoted the device for simulating false wiring of electric energy metering equipment of business skill, technology troop training, contest evaluation, training demonstration usefulness.
Background technology
Electric power meter works the special role of making scale in Utilities Electric Co.'s dealing electric energy, wiring error to electric power meter can not be measured accurately and reliably to electric weight, and with electric process electrification will take place to use, and for those ordering about by economic interests, stealing and transgression for using electricity behavior will bring economic loss to society, therefore need align the various measuring apparatus that are in operation and carry out regular or irregular necessary the inspection.
Owing in real work, be difficult to see phenomenon, the consequence of various false wiring modes and generation,, must carry out and on-the-spot consistent training to them for promoting electric power meter supervisory personnel's the judgement and the technical ability of opposing electricity-stealing.In present training and learning, if the student only learns by books or teacher's explanation, because not directly perceived, the student is difficult to understand, grasp.For improving learning efficiency, the theoretical mode that combines with real training has mostly been adopted in present training.The wherein normal main employing of real training: (1) is line directly; (2) use the computer software emulation; Dual mode carries out real training, so that can accumulate experience by training fast.Because mode (1) is finished by changing wiring one by one various false wiring modes, very approaching with the scene, but whenever change primary connection and all will spend the long time, thereby at short notice, the student can not finish the various modes of connection one by one in training, he just can not watch the phenomenon and the consequence of corresponding wiring.Mode (2) is owing to be to simulate false wiring with the computer software mode, and the reconfiguration line is convenient, fast, but exists and the on-the-spot problem that differs greatly, and costs an arm and a leg.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, reliable operation, efficient height, can finish the device for simulating false wiring of electric energy metering equipment of various false wiring mode reconfigurations fast.
For realizing that purpose of the present invention has adopted following technical scheme: a kind of device for simulating false wiring of electric energy metering equipment of the present invention, it is characterized in that including current error wiring simulator, voltage false wiring simulator, current error wiring simulator, the three-phase current of voltage false wiring simulator, the input end of voltage respectively with the three-phase virtual current of the charged source apparatus of peripheral hardware virtual negative, the output terminal of virtual voltage connects, current error wiring simulator, the three-phase current of voltage false wiring simulator, the output terminal of voltage respectively with the electric current of peripheral hardware electric power meter, the input end of voltage connects.
By device for simulating false wiring of electric energy metering equipment provided by the invention, in use because current error wiring simulator, the input end of voltage false wiring simulator respectively with the virtual current of the virtual load power device that is used for electric power meter of peripheral hardware, the virtual voltage output terminal connects, current error wiring simulator, voltage false wiring simulator output terminal is connected with the input end of electric power meter respectively, adopt electric current, voltage is simulated false wiring respectively, and then respectively to the electric current of the electric power meter of peripheral hardware, voltage input end connects, by change current error wiring simulator, the mode of connection in the voltage false wiring simulator is simulated the correct wiring in the actual motion, false wiring (electric current and voltage phase shortage, the phase failure, polarity is anti-, just with negative-phase sequence and combination wiring), fault artificially is set, allow charged mistake and the trouble spot of searching of student, see the electric current under the various modes of connection intuitively, magnitude of voltage and vector plot, so that the correct understanding principle of work improves the ability that the student looks into stealing fast.The respective switch that only need stir electric current, voltage false wiring simulator when false wiring is set can set out: the single false wiring of electric current, voltage or composition error wiring, the present invention is simple in structure, reliable operation, easy to operate, efficient is high, can finish the reconfiguration of various false wiring modes fast, can carry out the training of following associative skills aspect to the student:
1, detects measuring apparatus with watt-second method;
2, various correct, false wiring phenomenons of high pressure measurement device and consequence;
3, various correct, false wiring phenomenons of low-temperature measurement device and consequence;
4, by the measurement electric current, voltage, the wiring of phase shift inspection measuring apparatus has no abnormal;
5, the use (multimeter, phase meter, secondary circuit tester etc.) of study measuring apparatus detecting instrument commonly used;
6, the field-checking electric energy meter and the wiring that rights a wrong.
Description of drawings
The present invention has following accompanying drawing:
Fig. 1 is an electric theory diagram of the present invention;
Fig. 2 is the circuit theory diagrams of current error wiring simulator;
Fig. 3 is the circuit theory diagrams of voltage false wiring simulator.
Embodiment
Embodiment of the present invention are described with reference to the accompanying drawings.As shown in Figure 1, a kind of device for simulating false wiring of electric energy metering equipment, include current error wiring simulator C, voltage false wiring simulator D, the three-phase current of current error wiring simulator C, voltage false wiring simulator D, the input end of voltage are connected with the three-phase virtual current of the charged source apparatus A of peripheral hardware virtual negative, the output terminal of virtual voltage respectively, and the three-phase current of current error wiring simulator C, voltage false wiring simulator, the output terminal of voltage are connected with the electric current of peripheral hardware electric power meter E, the input end of voltage respectively.
In the embodiment shown in the figures, as shown in Figure 2, aforesaid current error wiring simulator C is made up of one two cutter two-position switch K1, three cutter three-position switch K2, three two cutter three-position switch KU, KV, KW and three current transformer TAu, TAv, TAw; Decide contact 3 and be connected for one among the aforementioned two cutter two-position switch K1 among the moving contact of a cutter and the aforementioned three cutter three-position switch K2, decide contact 1 for two among the moving contact of another cutter and the aforementioned three cutter three-position switch K2,5 connect altogether, two cuttves decide contact 1,2 mutual respectively intersections connect altogether, among their common contact and the three cutter three-position switch K2 in addition two decide contact 2,4 common contact respectively with the three-phase virtual current output terminal IU1 of the charged source apparatus A of peripheral hardware virtual negative, IW1, IV1 connects, three moving contacts of aforementioned three cutter three-position switch K2 respectively with three current transformer TAu, TAv, the primary side current leading-in end P1 of TAw connects, three current transformer TAu, TAv, the primary side current exit P2 of TAw respectively with the three-phase virtual current output terminal Iun of the charged source apparatus A of peripheral hardware virtual negative, Ivn, IWn connects; The mutual respectively intersection of contact 1,2 of deciding of two cuttves connects altogether in each switch of aforementioned three two cutter three-position switch KU, KV, KW, the end that connects altogether of its each switch is connected with secondary side current output terminal S1, the S2 of corresponding current transformer respectively, the centre of each switch is decided contact 0 sky and is connect, and three two cutter three-position switch KU, six moving contact Iu1, the Iun of KV, KW, Iv1, Ivn, Iw1, Iwn are connected with the three-phase current input end of external electric power meter E respectively.Two cutter two-position switch K1 are electric current along the backward switch, stir the positive and negative phase sequence that they can switching current, and the electric current phase sequence is changed between uvw or wvu.Three cutter three-position switch K2 are the phase sequence switch, can distinguish the phase sequence of switching current under positive and negative phase sequence state again, promptly also can realize between uvw, vwu, the wuv when positive phase sequence or the conversion of electric current phase sequence between wvu, vuw, the uwv when negative-phase sequence.Three two cutter three-position switch KU, KV, KW are the current polarity switch, stir the positive and negative polarity or the phase failure that they can switching current arbitrarily.By stirring aforesaid each switch respectively, can make things convenient for, realize simply, fast to electric current phase shortage, polarity instead, just with the conversion of negative-phase sequence and combination wiring thereof.
In the embodiment shown in fig. 3, aforesaid voltage false wiring simulator D is made up of three hilted broadsword three-position switch K4-1, K4-2, K4-3, two interlock switch K5-1 of two cuttves and K5-2, K5-3 and K5-4, three cutter three-position switch K6-1, K6-2, K6-3, four single-pole switch K7, K8, K9, K10 and 1:1 voltage transformer (VT) B; The moving contact of aforementioned three hilted broadsword three-position switch K4-1, K4-2, K4-3 is corresponding respectively to be connected with three-phase virtual voltage output terminal Uu, Uv, the Uw of the charged source apparatus A of peripheral hardware virtual negative, one of each hilted broadsword three-position switch decide contact H respectively with each corresponding connection of voltage transformer (VT) B primary side, another decides each corresponding with voltage transformer (VT) B secondary side respectively corresponding connection of contact L, decides contact 0 sky for the 3rd and connects; The contact of deciding of two interlock switchs of aforementioned two cuttves is distinguished mutual cross connection, their common contact respectively with two hilted broadsword three-position switch K4-3, decide contact L end and connect for one of K4-1, one tool setting K5-1 of two interlock switchs of two cuttves is in parallel with the moving contact of K5-4 with another tool setting K5-3 of two interlock switchs of two cuttves respectively with the moving contact of K5-2, its parallel connected end respectively with aforementioned three cutter three-position switches in first, the 4th decides contact 1,4 and the 3rd decide contact 3 is connected, voltage transformer (VT) B secondary side middle-end also with aforementioned three cutter three-position switches in second, the 5th decides contact 2,5 connect altogether; Three moving contacts among aforementioned three cutter three-position switch K6-1, K6-2, the K6-3 are connected with three single-pole switch K7, K8, K9 one end respectively, the end of the 4th single-pole switch K10 is connected with the middle line output terminal Un of the charged source apparatus A of peripheral hardware virtual negative, other end u, the v of aforementioned four single-pole switch K7, K8, K9, K10, w, n respectively with the corresponding connection of three-phase voltage input end of external electric power meter E.Each phase input voltage conversion that three hilted broadsword three-position switch K4-1, K4-2, K4-3 are the high and low pressure electric power meter with simulate each high pressure switch that once breaks mutually, each phase input voltage of high-voltage electric-energy meter is introduced from the contact H that decides of each switch, each phase input voltage of low voltage electric energy measure device is introduced from the contact L that decides of each switch, because the 3rd moving contact 0 sky connects, and can simulate each phase high pressure and once break.Two interlock switch K5-1 of two cuttves and K5-2, K5-3 and K5-4 are voltage inversion preface switch, stir the positive and negative phase sequence that they can changing voltage, and voltage phase sequence is changed between uvw or wvu.Three cutter three-position switch K6-1, K6-2, K6-3 are the voltage phase sequence switch, can under positive and negative phase sequence state, distinguish the phase sequence of changing voltage again, promptly when positive phase sequence, also can realize between uvw, vwu, the wuv or the conversion of voltage phase sequence between wvu, vuw, the uwv when negative-phase sequence.Four single-pole switch K7, K8, K9, K10 are Phase failure switch, and the various faults of phase shortage or scarce center line can artificially be set.By stirring aforesaid each switch respectively, can make things convenient for, realize simply, fast phase shortage, the phase failure, phase sequence and negative-phase sequence to voltage and the conversion of combination wiring thereof.
Claims (1)
1. device for simulating false wiring of electric energy metering equipment, it is characterized in that including current error wiring simulator (C), voltage false wiring simulator (D), the three-phase current input end of current error wiring simulator (C) is connected with the output terminal of the three-phase virtual current of the charged source apparatus of peripheral hardware virtual negative (A), and the three-phase current output terminal of current error wiring simulator (C) is connected with the three-phase current input end of peripheral hardware electric power meter (E); The three-phase voltage input end of voltage false wiring simulator (D) is connected with the output terminal of the three-phase virtual voltage of the charged source apparatus of peripheral hardware virtual negative (A), and the three-phase voltage output terminal of voltage false wiring simulator (D) is connected with the three-phase voltage input end of peripheral hardware electric power meter (E);
Aforesaid current error wiring simulator (C) is by one two cutter two-position switch (K1), one three cutter three-position switch (K2), three two cutter three-position switch (KU, KV, KW) and three current transformer (TAu, TAv, TAw) form, in the aforementioned two cutter two-position switchs (K1) in the moving contact of a cutter and the aforementioned three cutter three-position switches (K2) the 3rd are decided contact (3) and are connected, in the moving contact of another cutter and the aforementioned three cutter three-position switches (K2) first are decided contact (1) and the 5th and are decided contact (5) and connect altogether, first of a cutter decides second of contact (1) and another cutter and decides contact (2) and connect altogether in the aforementioned two cutter two-position switchs (K1), second of a cutter decides first of contact (2) and another cutter and decides contact (1) and connect altogether in this two cuttves two-position switch (K1), they two altogether second in contact and the three cutter three-position switches (K2) decide contact (2) and the 4th decide common contact that contact (4) joins respectively with the first three-phase virtual current output terminal (IU1) of the charged source apparatus of peripheral hardware virtual negative (A), the 3rd three-phase virtual current output terminal (IW1) is connected with the second three-phase virtual current output terminal (IV1) is corresponding, three moving contacts of aforementioned three cutter three-position switches (K2) respectively with three current transformer (TAu, TAv, TAw) primary side current leading-in end (P1) connects, three current transformer (TAu, TAv, TAw) primary side current exit (P2) respectively with the 4th three-phase virtual current output terminal (Iun) of the charged source apparatus of peripheral hardware virtual negative (A), the 5th three-phase virtual current output terminal (Ivn) and the 6th three-phase virtual current output terminal (IWn) connect one to one; Aforementioned three two cutter three-position switch (KU, KV, KW) first of a cutter decides second of contact (1) and another cutter and decides contact (2) and connect altogether in each switch, second of a cutter is decided first of contact (2) and another cutter and is decided contact (1) and connect altogether, each forms two contacts altogether, the aforesaid altogether contact of each two cutter three-position switch respectively with the first secondary side current output terminal (S1) and second corresponding connection of secondary side current output terminal (S2) of corresponding current transformer, the centre of aforementioned each two cutter three-position switch is decided contact (O) sky and is connect, three two cutter three-position switch (KU, KV, KW) six moving contact (Iu1, Iun, Iv1, Ivn, Iw1, Iwn) connect one to one with six three-phase current input ends of external electric power meter (E) respectively;
Aforesaid voltage false wiring simulator (D) is by three hilted broadsword three-position switch (K4-1, K4-2, K4-3), one two cutter two interlock switchs (K5-1 and K5-2, K5-3 and K5-4), one three cutter three-position switch (K6-1, K6-2, K6-3), four single-pole switch (K7, K8, K9, K10) and 1: 1 voltage transformer (VT) (B) form, three hilted broadsword three-position switch (K4-1, K4-2, K4-3) moving contact respectively one to one with three three-phase virtual voltage output terminal (Uu of the charged source apparatus of peripheral hardware virtual negative (A), Uv, Uw) connect, described three hilted broadsword three-position switches first deciding contact (H) and connect one to one with the three-phase of voltage transformer (VT) (B) primary side respectively separately, described three hilted broadsword three-position switches second deciding contact (L) and connect one to one with the three-phase of voltage transformer (VT) (B) secondary side respectively separately, the 3rd of each hilted broadsword three-position switch is decided contact (O) sky and is connect; First of a tool setting decides contact and decides contact with second of another tool setting and be connected in two interlock switchs of aforementioned two cuttves, second of one tool setting is decided contact and is decided contact with first of another tool setting and be connected, two common contacts are decided contact (L) end with second of the 3rd hilted broadsword three-position switch (K4-3) and two switches of the first hilted broadsword three-position switch (K4-1) respectively and are connected one to one, in in the moving contact of one tool setting (K5-1 and K5-2) of two interlock switchs of two cuttves one moving contact with another tool setting (K5-3 and K5-4) of two interlock switchs of two cuttves one is in parallel, in the moving contact of another in the moving contact of one tool setting (K5-1 and K5-2) of two interlock switchs of two cuttves and another tool setting (K5-3 and K5-4) of two interlock switchs of two cuttves another is in parallel, in their parallel connected end and the aforementioned three cutter three-position switches first, the 4th decides contact (1,4) connect, in another parallel connected end and the aforementioned three cutter three-position switches the 3rd are decided contact (3) and are connected, voltage transformer (VT) (B) secondary side middle-end also with aforementioned three cutter three-position switches in second, the 5th decides contact (2,5) connect altogether; Three moving contacts in the aforementioned three cutter three-position switches (K6-1, K6-2, K6-3) and an end of three single-pole switches (K7, K8, K9) connect one to one respectively, one end of the 4th single-pole switch (K10) is connected with the middle line output terminal (Un) of the charged source apparatus of peripheral hardware virtual negative (A), and the other end (u, v, w, n) of aforementioned four single-pole switches (K7, K8, K9, K10) connects one to one with the three-phase voltage input end and the center line input end of external electric power meter (E) respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100932519A CN101281693B (en) | 2007-12-29 | 2007-12-29 | Device for simulating false wiring of electric energy metering equipment |
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| CN2007100932519A CN101281693B (en) | 2007-12-29 | 2007-12-29 | Device for simulating false wiring of electric energy metering equipment |
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| CN101281693A CN101281693A (en) | 2008-10-08 |
| CN101281693B true CN101281693B (en) | 2011-05-18 |
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| CN102253359A (en) * | 2011-04-28 | 2011-11-23 | 深圳市锐能微科技有限公司 | Method and system for correcting false wiring of three-phase four-wire watt-hour meter and watt-hour meter |
| CN103064054B (en) * | 2012-12-19 | 2015-09-30 | 云南电力试验研究院（集团）有限公司电力研究院 | The matrix majorization method of electric power meter analogue system and wiring thereof |
| CN103969540B (en) * | 2013-01-30 | 2016-06-22 | 江苏省电力公司常州供电公司 | The method of testing of four wye voltage transformer secondary circuit wiring |
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