CN2441241Y - Automatic voltage compensating electric distributing box for lighting - Google Patents
Automatic voltage compensating electric distributing box for lighting Download PDFInfo
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- CN2441241Y CN2441241Y CN 00249199 CN00249199U CN2441241Y CN 2441241 Y CN2441241 Y CN 2441241Y CN 00249199 CN00249199 CN 00249199 CN 00249199 U CN00249199 U CN 00249199U CN 2441241 Y CN2441241 Y CN 2441241Y
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- voltage
- contactor
- contact
- circuit breaker
- elementary winding
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Abstract
The utility model relates to a distribution box, which comprises a distribution box body, a distribution control circuit arranged in the box body and a control button, a meter and an output connection socket which are connected with a distribution control electric appliance in the box body. The utility model is characterized in that the distribution control circuit comprises a wire-in circuit breaker, multiple wire-out loop circuit breakers which are connected in parallel, and also comprises an automatic voltage step compensator. The utility model has the advantages of reliable motion, large capacity, high efficiency and undistorted wave shape, can reduce the voltage automatically when the voltage is high and can boost the voltage automatically when the voltage is time, and makes the voltage of the lighting distribution always keep within the voltage change range allowed by a lighter.
Description
The utility model relates to a kind of distribution box, relates in particular to a kind of voltage automatic compensating light distribution box with automatic bucking voltage function.
The widely used automatic voltage regulation distribution box that designs for the electric distribution system mainly contains two big classes at present: a class is an electromagnetic type automatic voltage regulation distribution box (as shown in Figure 1), this kind equipment all has a cover mechanical driving device, adopt a servomotor and a cover mechanical driving device to drive the output voltage that brush changes autotransformer as contact type voltage regulator, thereby its complex structure not only, volume is bigger, and use cost is higher.Another kind of is electron type, adopts the autotransformer (as Fig. 2) in the alternative electromagnetic type voltage regulator of silicon-controlled voltage regulation device.The silicon-controlled voltage regulation device is made up of transformer L2, controllable silicon U3 and K switch 11, K22.Owing to adopt the controllable silicon regulation voltage, therefore has following shortcoming: a, capacity is restricted, only is suitable for low capacity; B, output voltage wave mode high order harmonic component make wave distortion, pollute electrical network; C, output voltage and input voltage have phase difference.
The purpose of this utility model is provide for the shortcoming that overcomes existing distribution box a kind of simple in structure, reliable in action, capacity is big, the efficient height, waveform is undistorted, and can when voltage is high, can reduce voltage, voltage boosted voltage automatically when low automatically, make the voltage of light distribution remain at the change in voltage scope of luminaire permission with interior voltage automatic compensating light distribution box.
For achieving the above object, taked following measure: the voltage automatic compensating light distribution box, comprise distribution box body, be located at the distribution control circuit in the casing, and be located at each control button and the instrument that is connected with distribution control apparatus in the casing on the cabinet panel, be located at the output gang socket of after panel box; Be characterized in, described distribution control circuit comprises that one is serially connected in the lead-in circuit breaker of the phase line loop of low-voltage network, and outlet circuit breaker a plurality of and that connect, the output of each outlet circuit breaker is connected with each power consumption equipment by the gang socket on the panel, comprises that also one is serially connected in the automatic grading compensation device of a voltage between lead-in circuit breaker and the outlet circuit breaker.
Above-mentioned voltage automatic compensating light distribution box, wherein, the automatic grading compensation device of described voltage comprises: a compensator transformer and a plurality of A.C. contactors that are connected with this compensator transformer; Described compensator transformer comprises: two identical elementary windings and are serially connected in the secondary winding between the fixed contact of the moving contact of lead-in circuit breaker and outlet circuit breaker; Described each A.C. contactor all has at least a contact to be connected with elementary winding.
The automatic grading compensation device of above-mentioned voltage, wherein, described A.C. contactor has seven, and the contact of each A.C. contactor and elementary winding ways of connecting are: a contact of first A.C. contactor is connected between the input of the output of the first elementary winding and the second elementary winding; Between the input end of the same name that a contact of second A.C. contactor is connected two elementary windings; Between the output end of the same name that a contact of the 3rd A.C. contactor is connected two elementary windings; A contact of the 4th A.C. contactor is connected between the output and phase line of the second elementary winding; A contact of the 5th A.C. contactor is connected between the input and phase line of the first elementary winding; A contact of the 6th A.C. contactor is connected between the output and the neutral line of the second elementary winding; A contact of the 7th A.C. contactor is connected between the input and the neutral line of the first elementary winding.
Because the utility model has adopted above technical scheme, on the inlet wire loop of light distribution box, seal in an automatic grading compensation device of voltage, it can be according to the voltage instruction on the bus in the light distribution box, change the bucking voltage in inlet wire loop, when the voltage in inlet wire loop when ± 10% rated voltage changes, can keep the interior busbar voltage of case in 0 ~+5% rated voltage, and can guarantee the continuity of power supply.Have simple in structure, reliable in action, capacity is big, the efficient height, waveform is undistorted, and can reduce voltage, voltage boosted voltage automatically when low when voltage is high automatically, makes the voltage of light distribution remain at the change in voltage scope of luminaire permission with interior advantage.
Concrete structure of the present utility model is further provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the electric hookup of prior art electromagnetic type automatic voltage regulation equipment;
Fig. 2 is the electric hookup of prior art electron type automatic voltage regulation equipment;
Fig. 3 is a surface structure schematic diagram of the present utility model;
Fig. 4 is the utility model voltage automatic compensating light distribution box distribution control circuit electric hookup;
Fig. 5 is the single-phase winding diagram of the automatic grading compensation device of voltage among the utility model embodiment.
See also Fig. 3, Fig. 3 is a surface structure schematic diagram of the present utility model.The utility model voltage automatic compensating light distribution box, comprise distribution box body 1, be located at the distribution control circuit 2 in the casing, and be located at each control button 3 and the instrument 4 that is connected with distribution control apparatus in the casing on the cabinet panel, be located at the output gang socket of after panel box.
Fig. 4 is the utility model voltage automatic compensating light distribution box distribution control circuit 2 electric hookups.Described distribution control circuit comprises that one is serially connected in the lead-in circuit breaker CB of the phase line loop of low-voltage network, and outlet circuit breaker MCB a plurality of and that connect, the output of each outlet circuit breaker is connected with each power consumption equipment by the gang socket on the after panel box, comprises that also one is serially connected in the automatic grading compensation device of the voltage JZ between lead-in circuit breaker and the outlet circuit breaker.
Fig. 5 is the single-phase winding diagram of the automatic grading compensation device of voltage among the utility model embodiment.The automatic grading compensation device of described voltage comprises: a compensator transformer and a plurality of A.C. contactors that are connected with this compensator transformer; Described compensator transformer comprises: two identical elementary windings and are serially connected in the secondary winding between the fixed contact of the moving contact of lead-in circuit breaker and outlet circuit breaker; Described each A.C. contactor all has at least a contact to be connected with elementary winding.B1-1, B1-2 are two elementary windings of compensator transformer among the figure; B2 is the secondary winding of compensator transformer, also claims the compensation winding; L is a phase line, and N is the neutral line, and K1, K2, K3, Kh1, Kh2, Kd1, Kd2 are the exchange contactor that switches usefulness, and voltage regulation function is that the action by the contact of A.C. contactor realizes.
The utility model can be realized five grades of voltage regulation functions by contactor K.According to electrical principles, output voltage U
2With input voltage U
1Exist following relation:
U
2=U
1±ΔU
Δ U is a bucking voltage.It is relevant with the connected mode of the elementary winding of compensator transformer.As two elementary windings in series being connected the phase voltage of back forward access networks, then can obtain a bucking voltage with network phase voltage homophase, be referred to as to call a unit positive bucking voltage, if oppositely access then obtains a reverse compensation voltage.In addition, as with the phase voltage of access network forward or backwards after two elementary winding parallel connections, then can obtain two unit positives or reverse compensation voltage.If two elementary windings are access network not, and makes it short circuit, then bucking voltage is zero, i.e. U
2=U
1The utility model promptly is to have determined five kinds of connected mode states with contactor according to above-mentioned principle,
The automatic grading compensation device of the utility model voltage, wherein, the A.C. contactor that one compensator transformer of described and the line loop mutually that is serially connected in low-voltage network connects has seven, and a contact and the elementary winding ways of connecting of each A.C. contactor are: a contact K1 of first A.C. contactor is connected between the input of the output of the first elementary winding B1-1 and the second elementary winding B1-2; Between the input end of the same name that a contact K2 of second A.C. contactor is connected two elementary windings; Between the output end of the same name that a contact K3 of the 3rd A.C. contactor is connected two elementary windings; A contact Kd1 of the 4th A.C. contactor is connected between the output and phase line of the second elementary winding; A contact Kh2 of the 5th A.C. contactor is connected between the input and phase line of the first elementary winding; A contact Kh1 of the 6th A.C. contactor is connected between the output and the neutral line of the second elementary winding; A contact Kd2 of the 7th A.C. contactor is connected between the input and the neutral line of the first elementary winding.
The utility model can be finished following action:
1, straight-through shelves: bucking voltage is 0; K1, K2, K3 action, Third Mate's main contact closure makes elementary winding short circuit; All the other four pairs of main contacts disconnect is failure to actuate, and makes not access network of elementary winding, so bucking voltage is zero.
2, the I shelves fall: the compensated voltage drop one-level; Kh1, Kh2, K3 action, all the other are failure to actuate; Make elementary winding forward access network phase voltage, obtain a unit positive bucking voltage on secondary winding, output voltage is than the low unit bucking voltage of input voltage.
3, fall the II level: one-level falls in bucking voltage again; Kh1, Kh2, K1, K2 action, all the other are failure to actuate; Elementary winding changes over and is connected in parallel.Get two unit positive bucking voltages on the secondary winding, output voltage is than low two the unit bucking voltages of input voltage.
4, rise the I shelves: bucking voltage rising one-level; Kd1, Kd2, K3 action, all the other are failure to actuate, and make the anti-phase access network phase voltage of elementary winding, obtain a unit reverse compensation voltage on secondary winding, and output voltage is than the high unit bucking voltage of input voltage.
5, rise the II shelves: mend the voltage electricity one-level that raises again, Kd1, Kd2, K1, K2 action, all the other are failure to actuate; Be with the difference of above-mentioned action that elementary winding changes over by connecting and be connected in parallel that therefore obtain two reverse compensation voltages on secondary winding, output voltage is than the individual unit of input voltage Senior Two bucking voltage.
As long as output voltage exceeds 0 of original setting～+ 5% permissible value,, just can make it to return within the permissible value by the switching of A.C. contactor.The switching of A.C. contactor is to be undertaken by the instruction of output voltage, as long as output voltage exceeds the highest Minimum Acceptable Value of setting, the switching by contactor makes it to return within the permissible value.The handoff procedure of gearshift is finished in 2 cycles (40ms).The technology that automaticallyes switch is a prior art, and the utility model is no longer narrated.
If the utility model uses the occasion at three phase mains, as long as then with serial connection one compensator transformer and connected each A.C. contactor in every phase electrical network phase line, its operating principle is identical with use in single phase poaer supply, so do not describe in detail.
Because the maximum bucking voltage of compensator is generally rated voltage ± 10%, so the capacity of compensator only is 10% of a distribution capacity.Therefore, the loss of compensator proportion in distribution capacity own is minimum, only is 0.005 of distribution capacity, and voltage automatic compensating light distribution box efficient can reach more than 99.5%.
This voltage automatic compensating light distribution box is applicable to industrial and mining enterprises' large-sized workshop illumination, city illumination, the floodlighting of skyscraper, the illumination of major port harbour, the plaza lighting of freeway toll station, the illumination on vcehicular tunnel and railway tunnel road etc.
Major advantage of the present utility model is:
1. improve the illuminalive power-supply quality of voltage, guarantee the illuminalive power-supply voltage stabilization in allowed limits, not because of The too high normal service life that affects bulb of voltage; Illumination is reduced, and it is to lamp is put out Go out.
2. this automatic voltage compensating electric distributing box for lighting can go deep into the lighting load center and install, can be in certain limit The loss of voltage that interior offset supply wire inlet loop causes. Thereby the lead in illuminalive power-supply loop is reasonably made With, namely conductor cross-section can select smallerly than the lead of general lighting case current supply circuit, has reduced engineering and has made Valency, cost saving is saved non-ferrous metal consumption.
Claims (3)
1, the voltage automatic compensating light distribution box comprises distribution box body, is located at the distribution control circuit in the casing, and is located at each control button and the instrument that is connected with distribution control apparatus in the casing on the cabinet panel, is located at the output gang socket of after panel box; It is characterized in that, described distribution control circuit comprises that one is serially connected in the lead-in circuit breaker of the phase line loop of low-voltage network, and outlet circuit breaker a plurality of and that connect, the output of each outlet circuit breaker is connected with each power consumption equipment by the gang socket on the panel, comprises that also one is serially connected in the automatic grading compensation device of a voltage between lead-in circuit breaker and the outlet circuit breaker.
2, voltage automatic compensating light distribution box according to claim 1 is characterized in that, the automatic grading compensation device of described voltage comprises: a compensator transformer and a plurality of A.C. contactors that are connected with this compensator transformer; Described compensator transformer comprises: two identical elementary windings and are serially connected in the secondary winding between the fixed contact of the moving contact of lead-in circuit breaker and outlet circuit breaker; Described each A.C. contactor all has at least a contact to be connected with elementary winding.
3, the automatic grading compensation device of voltage according to claim 2, it is characterized in that, A.C. contactor in the automatic grading compensation device of described voltage has seven, and the contact of each A.C. contactor and elementary winding ways of connecting are: a contact of first A.C. contactor is connected between the input of the output of the first elementary winding and the second elementary winding; Between the input end of the same name that a contact of second A.C. contactor is connected two elementary windings; Between the output end of the same name that a contact of the 3rd A.C. contactor is connected two elementary windings; A contact of the 4th A.C. contactor is connected between the output and phase line of the second elementary winding; A contact of the 5th A.C. contactor is connected between the input and phase line of the first elementary winding; A contact of the 6th A.C. contactor is connected between the output and the neutral line of the second elementary winding; A contact of the 7th A.C. contactor is connected between the input and the neutral line of the first elementary winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00249199 CN2441241Y (en) | 2000-09-12 | 2000-09-12 | Automatic voltage compensating electric distributing box for lighting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00249199 CN2441241Y (en) | 2000-09-12 | 2000-09-12 | Automatic voltage compensating electric distributing box for lighting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2441241Y true CN2441241Y (en) | 2001-08-01 |
Family
ID=33607679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00249199 Expired - Fee Related CN2441241Y (en) | 2000-09-12 | 2000-09-12 | Automatic voltage compensating electric distributing box for lighting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2441241Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944711A (en) * | 2010-07-20 | 2011-01-12 | 刘玉艳 | Distribution box |
-
2000
- 2000-09-12 CN CN 00249199 patent/CN2441241Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944711A (en) * | 2010-07-20 | 2011-01-12 | 刘玉艳 | Distribution box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |