CN202584470U - Practical training system and practical training control device of low-voltage capacitance cabinet - Google Patents
Practical training system and practical training control device of low-voltage capacitance cabinet Download PDFInfo
- Publication number
- CN202584470U CN202584470U CN 201220114508 CN201220114508U CN202584470U CN 202584470 U CN202584470 U CN 202584470U CN 201220114508 CN201220114508 CN 201220114508 CN 201220114508 U CN201220114508 U CN 201220114508U CN 202584470 U CN202584470 U CN 202584470U
- Authority
- CN
- China
- Prior art keywords
- low
- voltage capacitance
- current
- capacitance cabinet
- cabinet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Abstract
The utility model relates to a practical training system and a practical training control device of a low-voltage capacitance cabinet, wherein the low-voltage capacitance cabinet is included; the low-voltage capacitance cabinet comprises a cabinet body, a primary circuit, a secondary circuit and a control loop; a selector switch and a reactive compensation controller are arranged in the control loop; the practical training system of the low-voltage capacitance cabinet further comprises a background computer and a virtual load power supply controlled by the background computer; the virtual load power supply comprises a current generation device and a voltage generation device; the practical training system of the capacitance cabinet further comprises a sampling device for sampling the switching state of an analogue capacitor; and the sampling device is in communication connected with the background computer. According to the utility model, a plurality of working processes of the low-voltage capacitance cabinet in field can be really simulated; functions of installation of the main loop of the capacitance cabinet, wire-connecting practical training and competition evaluation are realized; furthermore, the practical training effect is good; and field operational capacity of students is greatly increased.
Description
Technical field
The utility model relates to the power industry training and uses analogue means, particularly a kind ofly is used to impart knowledge to students, the low-voltage capacitance cabinet actual training device of real standard and contest examination.
Background technology
The low-voltage distribution working line often uses the low-voltage capacitance cabinet to carry out the compensation of reactive power, and reactive power compensation can improve the power factor of electrical network, reduces the loss of supply transformer and conveying circuit, improves power supplying efficiency, improves the power supply environment.So reactive power compensation device is in an indispensable very important position in power supply system.Reasonably select compensation system, can accomplish to reduce to greatest extent the loss of network, power grid quality is improved.
The low-voltage capacitance cabinet comprises main line and many group compensation condensers, through dropping into or excising one or more groups compensation condenser, with compensating power, improves power factor.Switching mode is divided into manually and automated manner, and automated manner does not need personnel operation, detects the also switching of control compensation capacitor automatically by idle compensating control.
Because the dangerous property of real system, so the mode that present training normally at first combines means such as picture, film, PPT to explain, watch is then taught about knowledge such as the principle of low-voltage capacitance cabinet and operations to the student.But for electrical equipments such as low-voltage capacitance cabinets, it is limited to explain and view and emulate the result of training ten minutes that plays, and practical operation is only beyond all doubt optimum training method.In addition, in the various contests and examination that power industry is carried out, be not suitable for using real system more, so design low-voltage capacitance cabinet experience system is imperative.
The utility model content
The purpose of the utility model provides a kind of low-voltage capacitance cabinet experience system, in order to solve the true low-voltage capacitance cabinet of existing real standard mode in can not simulated field, the problem of real standard weak effect.In addition, the utility model also provides the real standard of a kind of low-voltage capacitance cabinet control device.
For realizing above-mentioned purpose; The scheme of the utility model is: a kind of low-voltage capacitance cabinet experience system; Comprise the low-voltage capacitance cabinet, the low-voltage capacitance cabinet comprises cabinet, circuit, secondary line and a control loop, is provided with change-over switch and idle compensating control in the control loop; The artificial capacitor that is used for real standard is installed in the electric capacity installation place of low-voltage capacitance cabinet; The inner broken string of said artificial capacitor or with incoming end virtual connection or broken string, the analog current mutual inductor that is used for real standard is installed in the current transformer installation place of low-voltage capacitance cabinet, the inner broken string of said analog current mutual inductor or with incoming end virtual connection or broken string; Low-voltage capacitance cabinet experience system also comprises background computer and the virtual load power supply that is controlled by background computer; The virtual load power supply comprises current generating apparatus and voltage generation circuit; The output correspondence of voltage generation circuit is connected on the circuit inlet wire of low-voltage capacitance cabinet; In the three-phase output of current generating apparatus; Wherein two mutually output form the secondary current show circuit with the corresponding phase current table of low-voltage capacitance cabinet respectively, another is exported mutually and is used to this phase current table the current amplitude signal that shows usefulness is provided, and the power factor meter and the idle compensating control that are used to the low-voltage capacitance cabinet provide current phase signal; Said capacitor box experience system also comprises the sampling apparatus of the said artificial capacitor switching state that is used to sample, and said sampling apparatus is connected with the background computer communication.
Further; In the three-phase output of said current generating apparatus; Said another exported mutually and formed electric current with the power factor meter of low-voltage capacitance cabinet, change-over switch, idle compensating control and this phase current table and show and control loop, and this phase current table is preceding or connect near said power factor meter in the back.
Further; In the three-phase output of said current generating apparatus; Said another exported the branch road that connects two parallel connections mutually, and article one branch road comprises this phase current table, and second props up the end to end formation of power factor meter, change-over switch and idle compensating control of route low-voltage capacitance cabinet; This is exported mutually with article one branch road and forms this secondary current show circuit mutually, and this is exported mutually with the second branch road and forms current control loop.
Further, each phase output terminal of said voltage generation circuit respectively the corresponding input terminal mutually through the low-voltage capacitance cabinet be connected on inlet wire; Each of said current generating apparatus output mutually is connected on the secondary line through the corresponding phase current sampling terminal of secondary line respectively.
Further, the open and-shut mode of the "on" position of the cut-in and cut-off contactor coil of said sampling apparatus through detecting corresponding artificial capacitor, the cut-in and cut-off contactor contact through checking corresponding artificial capacitor or through the sample switching state of said artificial capacitor of the led status that detects the artificial capacitor incoming end.
Real standard control device; Comprise a background computer and the virtual load power supply that is controlled by background computer; The virtual load power supply comprises current generating apparatus and voltage generation circuit, and said voltage generation circuit is provided with one group of three-phase output end of a circuit end of incoming cables that is used to connect the low-voltage capacitance cabinet; Said current generating apparatus is provided with one group of three-phase output end; Wherein two phase output terminals are used for being connected to form the secondary current show circuit with corresponding phase current table; Another is exported mutually and is used to this phase current table the current amplitude signal that shows usefulness is provided, and the power factor meter and the idle compensating control that are used to the low-voltage capacitance cabinet provide current phase signal; The real standard of said low-voltage capacitance cabinet control device also comprises the sampling apparatus of the low-voltage capacitance cabinet capacitor switching state that is used to sample, and said sampling apparatus is connected with the background computer communication.
Further, in the output of the three-phase of said current generating apparatus, said another exported the power factor meter, change-over switch, idle compensating control and this phase current table that are used for the low-voltage capacitance cabinet mutually and formed electric current demonstration and control loop.
Further; In the three-phase output of said current generating apparatus; Said another exported the branch road that is used to connect two parallel connections mutually, and article one branch road comprises this phase current table, and second props up the end to end formation of power factor meter, change-over switch and idle compensating control of route low-voltage capacitance cabinet; This is exported mutually and is used for forming this secondary current show circuit mutually with article one branch road, and this is exported mutually and is used for forming current control loop with the second branch road.
Further, each phase output terminal of said voltage generation circuit is respectively applied for corresponding input terminal mutually through the low-voltage capacitance cabinet and is connected on inlet wire; Each of said current generating apparatus exported the corresponding phase current sampling terminal that is respectively applied for through low-voltage capacitance cabinet secondary line mutually and is connected in the secondary line.
Further, said sampling apparatus is used for the open and-shut mode of "on" position, the cut-in and cut-off contactor contact through checking corresponding artificial capacitor through the cut-in and cut-off contactor coil that detects corresponding artificial capacitor or through the sample switching state of said artificial capacitor of the led status that detects the artificial capacitor incoming end.
Adopt virtual load power supply control technology to reactive-load compensation sampling circuit output voltage current value; Adopt real low-voltage capacitance cabinet, capacitor constructions form; According to the capacitor switching situation of idle compensating control output change automatically output current amplitude and with the phasing degree of voltage, the simulated field low-voltage capacitance cabinet course of work.PC software can be set power supply output parameter and capacitor parameters, and participates in compensation according to setup parameter and calculate; This device requires to be optimized adjustment according to adapting to real standard on the basis of true low-voltage capacitance cabinet, makes the real standard of its installation connection technology that can satisfy high frequency time, and needn't change distribution devices such as the relatively costly idle compensating control of price, capacitor.
So the low-voltage capacitance cabinet experience system of the utility model, but the on-the-spot multiple course of work of low-voltage capacitance cabinet of real simulation, the real standard and the contest check function of installation, wiring of realizing the capacitor box major loop; And real standard is effective, and student's execute-in-place ability is had very big lifting.
Description of drawings
Fig. 1 is the low-voltage capacitance cabinet actual training device electrical schematic diagram of the utility model;
Fig. 2 is a kind of electric current output situation electrical schematic diagram of current generating apparatus;
Fig. 3 is the another kind of electric current output situation electrical schematic diagram of current generating apparatus;
Fig. 4 is a control loop part electrical schematic diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed explanation.
System embodiment
Like Fig. 1, Fig. 4; The low-voltage capacitance cabinet that experience system adopted of the utility model has kept whole circuit, secondary line and a control loop of low-voltage capacitance cabinet; Control loop comprises power factor meter (the current terminal connection bus input terminal of power factor meter that is connected on the bus inlet wire; The voltage terminal of power factor meter is connected between the two phase voltage inlet wires of this cabinet), change-over switch and idle compensating control that the low-voltage capacitance cabinet is disposed.
The low-voltage capacitance cabinet experience system of the utility model; Be provided with the real standard of low-voltage capacitance cabinet control device; The virtual load power supply that this control device comprises a background computer and is controlled by background computer; The virtual load power supply comprises current generating apparatus and voltage generation circuit, externally shows as one or more groups voltage output end and current output terminal.The design of the utility model is the voltage that utilizes this control device to produce, the demonstration of the true capacitor box of current analog, offers the student and observes.To the improvement of true low-voltage capacitance cabinet, and the concrete introduction of the annexation of this control device and low-voltage capacitance cabinet is as follows:
1, the capacitor of compensation usefulness is replaced with artificial capacitor, " artificial capacitor " is meant the shell or the profiling capacitor of real capacitor, capacitor like 1C, 2C, 3C among Fig. 1, it is installed in the electric capacity installation place of cabinet.If adopt real capacitor, then the incoming end with capacitor box is virtual connection or broken string, and if not true capacitor, then should break in its inside.In a word; Even cut-in and cut-off contactor action; " artificial capacitor " can really not insert in circuit yet; The effect of " artificial capacitor " is to a kind of real presence of student, makes the student know from experience real field condition, and the student is through viewing lamp (HL1, HL2 ... HL6 ...) state produces the sensation of " this electric capacity is excised or drop into circuit one time ".
2; In fact current transformer in this cabinet does not work; So current transformer is replaced with analog current mutual inductor (TAa, TAb, TAc); " analog current mutual inductor " can adopt the current transformer of true or profiling, and virtual connection is broken on connection terminal or with connection terminal, perhaps inner broken string.The reading of reometer in the secondary line (1A, 2A, 3A) depends on the current generating apparatus of virtual load power supply; So need the corresponding phase output terminal of current generating apparatus be sealed in the secondary line of corresponding phase; Like Fig. 1; Sealed in the A phase current signal that the virtual load power supply produces in the secondary line of A phase, C has sealed in the C phase current signal that the virtual load power supply produces mutually, and B has sealed in the B phase current signal that the virtual load power supply produces mutually.During physical cabling, can be directly the current output terminal of virtual load power supply be connected on the sampling terminal of two-wire line, very convenient.It may be noted that reometer (1A, 2A, 3A) indicates the three-phase current effective value of this cabinet.The A phase of only having drawn among Fig. 1 situation, concrete connected mode is seen Fig. 2 and Fig. 3.
3; Fig. 2 and Fig. 3 represent two kinds of output connection situation about current generating apparatus respectively; A certain output mutually in the three-phase except provide the current amplitude signal for this phase current table for showing the output; Being also connected to control loop, for power factor meter and idle compensating control provide current phase signal, is example with B in the utility model mutually.Like Fig. 2 is series system: the output of the B phase current of virtual load power supply and power factor meter (current terminal), change-over switch, idle compensating control and B phase current table 2A form current return; B phase current table 2A connects near power factor meter, can be connected power factor meter the place ahead or rear.Do the output of having saved the virtual load power supply like this, utilize the current amplitude signal reading to be provided simultaneously, utilize phase signal to offer power factor meter and idle compensating control for reometer.Among Fig. 2, the control loop automatic catch is closed through a road, the control loop of idle compensating control automatic switching capacitor, and control loop is closed through the b road when manual retaining and neutral.
4; Like Fig. 3 is parallel way; Be that B exports mutually and connects two parallel branches, article one branch road comprises B phase current table 2A, and second props up route power factor meter (current terminal), change-over switch, the end to end successively formation of idle compensating control; B exports mutually with article one branch road and forms B secondary current show circuit mutually, and B exports mutually with the second branch road and forms current control loop.It may be noted that when adopting parallel way, because B exports by article one branch road and the shunting of second branch road mutually; In order to make 1A, 2A, 3A shows numerical value balance (identical); Need to regulate the demonstration multiple (being made as K) of B phase current table 2A, make the current amplitude that flows through 2A multiply by this multiple and equal to flow through A, C current amplitude, be formulated as I (2A) * K=I (1A)=I (3A); Obviously, this shows that multiple K is relevant with the ratio of the resistance of second branch road with first branch road.In addition, because the second branch road is different in the impedance that automatic catch is shown during with manually retaining, neutral, establish an adjusting resistance R again so need in first branch road, go here and there, make automatic catch with manually keep off, the ratio of the resistance of two branch roads is identical during neutral.This adjusting resistance R is controlled by background computer, and background computer is regulated the parallelly connected contactor control of resistance through one of control with this should regulate the resistance R input.When automatic catch, regulate the resistance R input, when manual and neutral, regulate resistance and cut out, satisfy r (2A)/r (cos Φ)=(r (2A)+R)/(r (cos Φ)+r (kzq)); R (2A) is reometer 2A internal resistance, and r (cos Φ) is the power factor meter internal resistance, and r (kzq) is the idle compensating control internal resistance.
5, one group of voltage output of virtual load power supply is connected on inlet wire, during actual line, can directly be connected on the input terminal of cabinet.
6, sampling apparatus is set, the capacitor switching state of compensation usefulness is sampled, send to background computer through the particular communication mode.The capacitor switching state is sampled the open and-shut mode of the "on" position of cut-in and cut-off contactor coil that can be through detecting corresponding artificial capacitor, the cut-in and cut-off contactor contact through checking corresponding artificial capacitor or sample through the led status that detects the artificial capacitor incoming end.About the concrete mode of sampling, with the contents such as mode of background computer communication owing to be that those skilled in the art just according to circumstances freely choose in the prior art, repeat no more at this.
Circuit such as Fig. 1; Comprise from the cabinet end of incoming cables to isolation switch L11, L12, L13 to major loop; Major loop is through building-out capacitor contactor (KM1, KM2, KM2 ...) be connected to electric capacity pilot lamp (HL1, the HL2 of artificial capacitor ... HL6 ...), corresponding configuration has fuse (FU1, FU2, FU3 ...) and overcurrent protection relay (FR1, FR2, FR3 ...).Control loop such as Fig. 3; Comprise universal seclector; It is change-over switch; Change-over switch is used for the coil of control compensation capacitor switching contactor KM1, KM2, KM3, makes corresponding additional electric capacity excision or drops into circuit (in the utility model, in fact only making the corresponding pilot lamp HL1, HL2, HL3 etc. of building-out capacitor insert a circuit).Change-over switch can also be provided with manually or control automatically, in automatic control state, and the automatic control contactor KM1 of idle compensating control, KM2, KM3.About each element and the annexation in change-over switch, idle compensating control and the loop, since identical with existing capacitor box, so no longer too much narrate at this.
More than introduced the low-voltage capacitance cabinet experience system of the utility model; The function that this system realizes is: by the virtual load power supply is that sampling instrument provides output; By computer control virtual load power supply; According to the capacitor switching situation, computer control virtual load power supply output correspondent voltage, electric current show sampling instrument.Computing machine is in real standard, and sampling capacitance switching situation calculates voltage, electric current and power factor, and then the output of control virtual load power supply, makes Displaying Meters such as voltage, electric current show respective value.
Concrete real standard process is following:
With Fig. 2 is that example describes, and at first, change-over switch transfers to neutral; In background computer, import a current power factor value and require power factor value by the coaching staff, as 0.6 and 0.9, at this moment; The output of background computer control virtual load power supply makes power factor meter show 0.6; Control loop is through closed like b road among Fig. 2, and this moment, the reometer displayed value of this cabinet was zero, and idle compensating control does not have the electric current input and do not work.In order to observe the capacitor box course of work; The student transfers to automatic catch with change-over switch; Like Fig. 2; The electric current output of virtual load power supply forms electric current demonstration and control loop (control loop is closed through a road) through reometer (like aforementioned analysis, being example mutually with B), power factor meter, change-over switch and idle compensating control, and idle compensating control is controlled switched capacitor automatically under the electric current output control of virtual load power supply.Idle compensating control at first drops into one group of electric capacity; Suppose to drop into 1C, background computer knows that through sampling apparatus electric capacity 1C is dropped into, and the student can observe electric capacity 1C and dropped into from the pilot lamp HL1 on the capacitor box, HL2 simultaneously; Background computer passes through software then; Calculate: the pairing true capacitor box of experience system, (under current power factor 0.6 situation) drop in the time of should organizing electric capacity 1C, this cabinet current value, magnitude of voltage and the power factor value that should show.Suppose true capacitor box when dropping into 1C, the power factor strain is 0.8, and then background computer control this moment virtual load power supply output shows voltage table, reometer and the power factor meter of this cabinet, and power factor meter shows 0.8; Owing to do not reach the requirement power factor, idle compensating control continues to drop into another capacitor 2C, and similarly, the virtual load power supply control that is presented at of voltage table, reometer and power factor meter changes down, so reaches 0.9 until power factor.
If the student transfers to manual retaining with change-over switch; Control loop is still closed through a road, reaches requirement in order to make power factor, and the student needs the manual operation change-over switch; Drop into capacitor; When observing each group electric capacity of input simultaneously, voltage table, reometer and power factor meter show how to change, training student's operative skill and the understanding of intensification student to knowledge.
For the mode of connection of Fig. 3, similar with Fig. 2, difference is when neutral switches to automatic catch, also should make to regulate resistance R and drop into B phase current table 2A branch road.When neutral switches to manual retaining, regulate resistance R and keep the state that cuts out.
Above-mentioned " computed in software " also can be by computing machine in advance to switching capacitance situation permutation and combination, calculate the value that should export and tabulation, when knowing which capacitor switching, directly make the virtual load power supply export through computation of table lookup.
The low-voltage capacitance cabinet experience system of the utility model adopts the connecting terminal block of being convenient to install, and can realize the real standard of installation, wiring and contest check function of capacitor box major loop; The multiple course of work of low-voltage capacitance cabinet at the scene of real simulation does not receive the restriction of on-the-spot distribution operation, can satisfy low-voltage distribution personnel's real standard of technical ability and contest examination.The utility model can carry out the real standard of installation, wiring technology of low-voltage capacitance cabinet, significantly improves low-voltage distribution operation maintenance personnel's real standard effect, promotes their on-the-spot problem-solving ability.
Control device embodiment
The real standard of low-voltage capacitance cabinet control device; Comprise a background computer and the virtual load power supply that is controlled by background computer; The virtual load power supply comprises current generating apparatus and voltage generation circuit, and said voltage generation circuit is provided with one group of three-phase output end of a circuit end of incoming cables that is used to connect the low-voltage capacitance cabinet; Said current generating apparatus is provided with one group of three-phase output end; Wherein two phase output terminals are used for being connected to form the secondary current show circuit with corresponding phase current table; Another is exported mutually and is used to this phase current table the current amplitude signal that shows usefulness is provided, and the power factor meter and the idle compensating control that are used to the low-voltage capacitance cabinet provide current phase signal; The real standard of said low-voltage capacitance cabinet control device also comprises the sampling apparatus of the low-voltage capacitance cabinet capacitor switching state that is used to sample, and said sampling apparatus is connected with the background computer communication.
The control device scheme of present embodiment, its meaning are, only this control device need be provided, and at the scene the low-voltage capacitance cabinet are transformed wiring, can accomplish the low-voltage capacitance experience system of the utility model.Concrete system construction, embodiment is identical with said system.
Claims (10)
1. low-voltage capacitance cabinet experience system; Comprise the low-voltage capacitance cabinet; The low-voltage capacitance cabinet comprises cabinet, circuit, secondary line and a control loop, is provided with change-over switch and idle compensating control in the control loop, it is characterized in that; The artificial capacitor that is used for real standard is installed in the electric capacity installation place of low-voltage capacitance cabinet; The inner broken string of said artificial capacitor or with incoming end virtual connection or broken string, the analog current mutual inductor that is used for real standard is installed in the current transformer installation place of low-voltage capacitance cabinet, the inner broken string of said analog current mutual inductor or with incoming end virtual connection or broken string; Low-voltage capacitance cabinet experience system also comprises background computer and the virtual load power supply that is controlled by background computer; The virtual load power supply comprises current generating apparatus and voltage generation circuit; The output correspondence of voltage generation circuit is connected on the circuit inlet wire of low-voltage capacitance cabinet; In the three-phase output of current generating apparatus; Wherein two mutually output form the secondary current show circuit with the corresponding phase current table of low-voltage capacitance cabinet respectively, another is exported mutually and is used to this phase current table the current amplitude signal that shows usefulness is provided, and the power factor meter and the idle compensating control that are used to the low-voltage capacitance cabinet provide current phase signal; Said capacitor box experience system also comprises the sampling apparatus of the said artificial capacitor switching state that is used to sample, and said sampling apparatus is connected with the background computer communication.
2. a kind of low-voltage capacitance cabinet experience system according to claim 1; It is characterized in that; In the three-phase output of said current generating apparatus; Said another exported mutually and formed electric current with the power factor meter of low-voltage capacitance cabinet, change-over switch, idle compensating control and this phase current table and show and control loop, and this phase current table is preceding or connect near said power factor meter in the back.
3. a kind of low-voltage capacitance cabinet experience system according to claim 1; It is characterized in that; In the three-phase output of said current generating apparatus; Said another exported the branch road that connects two parallel connections mutually, and article one branch road comprises this phase current table, and second props up the end to end formation of power factor meter, change-over switch and idle compensating control of route low-voltage capacitance cabinet; This is exported mutually with article one branch road and forms this secondary current show circuit mutually, and this is exported mutually with the second branch road and forms current control loop.
4. according to claim 1 or 2 or 3 described a kind of low-voltage capacitance cabinet experience systems, it is characterized in that each phase output terminal of said voltage generation circuit corresponding input terminal mutually through the low-voltage capacitance cabinet respectively is connected on inlet wire; Each of said current generating apparatus output mutually is connected on the secondary line through the corresponding phase current sampling terminal of secondary line respectively.
5. according to claim 1 or 2 or 3 described a kind of low-voltage capacitance cabinet experience systems; It is characterized in that the open and-shut mode of the "on" position of the cut-in and cut-off contactor coil of said sampling apparatus through detecting corresponding artificial capacitor, the cut-in and cut-off contactor contact through checking corresponding artificial capacitor or through the sample switching state of said artificial capacitor of the led status that detects the artificial capacitor incoming end.
6. a low-voltage capacitance cabinet is instructed control device in fact; It is characterized in that; Comprise a background computer and the virtual load power supply that is controlled by background computer; The virtual load power supply comprises current generating apparatus and voltage generation circuit, and said voltage generation circuit is provided with one group of three-phase output end of a circuit end of incoming cables that is used to connect the low-voltage capacitance cabinet; Said current generating apparatus is provided with one group of three-phase output end; Wherein two phase output terminals are used for being connected to form the secondary current show circuit with corresponding phase current table; Another is exported mutually and is used to this phase current table the current amplitude signal that shows usefulness is provided, and the power factor meter and the idle compensating control that are used to the low-voltage capacitance cabinet provide current phase signal; The real standard of said low-voltage capacitance cabinet control device also comprises the sampling apparatus of the low-voltage capacitance cabinet capacitor switching state that is used to sample, and said sampling apparatus is connected with the background computer communication.
7. the real standard of a kind of low-voltage capacitance cabinet according to claim 6 control device; It is characterized in that; In the three-phase output of said current generating apparatus, said another exported the power factor meter, change-over switch, idle compensating control and this phase current table that are used for the low-voltage capacitance cabinet mutually and formed electric current demonstration and control loop.
8. the real standard of a kind of low-voltage capacitance cabinet according to claim 6 control device; It is characterized in that; In the three-phase output of said current generating apparatus; Said another exported the branch road that is used to connect two parallel connections mutually, and article one branch road comprises this phase current table, and second props up the end to end formation of power factor meter, change-over switch and idle compensating control of route low-voltage capacitance cabinet; This is exported mutually and is used for forming this secondary current show circuit mutually with article one branch road, and this is exported mutually and is used for forming current control loop with the second branch road.
9. according to claim 6 or the real standard of 7 or 8 described a kind of low-voltage capacitance cabinets control device, it is characterized in that each phase output terminal of said voltage generation circuit is respectively applied for corresponding input terminal mutually through the low-voltage capacitance cabinet and is connected on inlet wire; Each of said current generating apparatus exported the corresponding phase current sampling terminal that is respectively applied for through low-voltage capacitance cabinet secondary line mutually and is connected in the secondary line.
10. according to claim 6 or the real standard of 7 or 8 described a kind of low-voltage capacitance cabinets control device; It is characterized in that, said sampling apparatus be used for through the "on" position of the cut-in and cut-off contactor coil that detects corresponding artificial capacitor, through checking corresponding artificial capacitor the cut-in and cut-off contactor contact open and-shut mode or through the sample switching state of said artificial capacitor of the led status that detects the artificial capacitor incoming end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220114508 CN202584470U (en) | 2012-03-23 | 2012-03-23 | Practical training system and practical training control device of low-voltage capacitance cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220114508 CN202584470U (en) | 2012-03-23 | 2012-03-23 | Practical training system and practical training control device of low-voltage capacitance cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202584470U true CN202584470U (en) | 2012-12-05 |
Family
ID=47253858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220114508 Withdrawn - After Issue CN202584470U (en) | 2012-03-23 | 2012-03-23 | Practical training system and practical training control device of low-voltage capacitance cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202584470U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867453A (en) * | 2012-03-23 | 2013-01-09 | 郑州万特电气有限公司 | Practical training system and practical training control device for low-voltage capacitor box |
| CN104318836A (en) * | 2014-11-04 | 2015-01-28 | 江苏工程职业技术学院 | Computer-controlled power factor compensation demonstration and experiment device and experiment method |
-
2012
- 2012-03-23 CN CN 201220114508 patent/CN202584470U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867453A (en) * | 2012-03-23 | 2013-01-09 | 郑州万特电气有限公司 | Practical training system and practical training control device for low-voltage capacitor box |
| CN102867453B (en) * | 2012-03-23 | 2014-12-24 | 郑州万特电气有限公司 | Practical training system and practical training control device for low-voltage capacitor box |
| CN104318836A (en) * | 2014-11-04 | 2015-01-28 | 江苏工程职业技术学院 | Computer-controlled power factor compensation demonstration and experiment device and experiment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103680238B (en) | A kind of intelligent substation Hybrid Simulation Training System for Industry | |
| CN102097024B (en) | Distribution room safety simulation training system | |
| CN201893058U (en) | Safe simulation training system for distribution room | |
| CN203706574U (en) | Industrial automation control network system practical training device | |
| CN106057005B (en) | A kind of building power supply and distribution teaching processing simulation experience system | |
| CN103440803A (en) | True-voltage simulation-current closed-loop all-true training system for 10kV power distribution device | |
| CN104407606A (en) | Testing system for stability of wide-area long-range tests based on RTDS (real time digital system) | |
| CN106383308A (en) | Charge control circuit breaker automatic breaking/closing test device | |
| CN102867453B (en) | Practical training system and practical training control device for low-voltage capacitor box | |
| CN103345870A (en) | Transformer intelligent simulation device | |
| CN202584470U (en) | Practical training system and practical training control device of low-voltage capacitance cabinet | |
| CN203630997U (en) | Intelligent substation hybrid simulation training system | |
| CN104269090A (en) | Simulation system and method for electricity consumption information acquisition terminal round control switch | |
| CN107356830B (en) | Simulation transformer training device | |
| CN108490290B (en) | Miniature simulation transmission line comprehensive experiment cabinet of electric power system | |
| CN201821108U (en) | Novel dynamic reactive power compensation device | |
| CN103345859B (en) | Intelligent practical training device based on transformer fault simulation | |
| CN108988312A (en) | A kind of submarine observation network secondary is plugged into the electric power distribution system and submarine observation network system of box | |
| CN204884342U (en) | Real standard examination device of intelligent power distribution | |
| CN203376911U (en) | A transformer intelligent simulating apparatus | |
| CN204229225U (en) | Based on the stable testing equipment of wide area remote testing of RTDS | |
| CN204679588U (en) | High-tension distributing line earth fault simulation table | |
| CN207780991U (en) | A kind of low-tension distribution box actual training device for rural power grids power distribution station system | |
| CN203706532U (en) | Transmission line practical training device | |
| CN202616782U (en) | Reactive power cloud compensation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHENGZHOU WONDER ELECTRICAL POWER CO., LTD. Free format text: FORMER NAME: ZHENGZHOU WONDER ELECTRIC CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: High tech Development Zone, Henan 450001 road screen city of Zhengzhou Province, No. 15 Patentee after: Zhengzhou Wonder Electrical Power Co., Ltd. Address before: Yinping Rd. high tech Development Zone in Henan province 450001 No. 15 Patentee before: ZhengZhou Wonder Electric Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20121205 Effective date of abandoning: 20141224 |
|
| RGAV | Abandon patent right to avoid regrant |