CN204118746U - A kind of low pressure and low power compensation arrangement - Google Patents
A kind of low pressure and low power compensation arrangement Download PDFInfo
- Publication number
- CN204118746U CN204118746U CN201420429575.0U CN201420429575U CN204118746U CN 204118746 U CN204118746 U CN 204118746U CN 201420429575 U CN201420429575 U CN 201420429575U CN 204118746 U CN204118746 U CN 204118746U
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- China
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- low
- compensation arrangement
- main capacitance
- auxiliary capacitor
- compensating controller
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a kind of low pressure and low power compensation arrangement, the low-pressure line-outgoing comprising low-voltage bus bar and be connected with low-voltage bus bar, comprise main capacitance compensation arrangement and auxiliary capacitor compensation arrangement, be respectively arranged with main capacitance compensation arrangement and the auxiliary capacitor compensation arrangement based on low capacity electric capacity, both independent operatings, when electric current in compensating cabinet cannot the reference capacity of switching main capacitance compensation arrangement time, switching fixes low capacity electric capacity, guarantees that the power factor (PF) in circuit is in perfect condition.
Description
Technical field
The utility model relates to the energy saver of low voltage electric network, particularly a kind of low pressure and low power compensation arrangement that can realize automatic switching.
Background technology
Existing power compensating device, when distribution line be in Smaller load run time, because capacitance compensation principal current is little, cannot switching main capacitance, cause emergent power factor to be crossed mending or owe the state of mending; When occurring in circuit that a large amount of harmonic wave or compensating controller break down, compensating controller switching capacitance, the situation that power factor (PF) value is but thrown lower and lower; Power factor (PF) is reported to the police and is mostly adopted GPRS communication modes, need traffic fee of delivering on term, and installation cost is large, remote power factor warning device is caused not promoted on a large scale, existing power factor (PF) alarm method, can not get the concern of user, the result that three kinds of above-mentioned situations finally may cause power factor (PF) to be imposed a fine.
Summary of the invention
For solving the problem, the purpose of this utility model is to provide that a kind of cost is low, circuit simple, and when effectively can solve the medium and small load operation of prior art, power factor (PF) crosses the low pressure and low power compensation arrangement mending or owe to mend phenomenon.
The technical scheme that the invention for solving the technical problem adopts is:
A kind of low pressure and low power compensation arrangement, the low-pressure line-outgoing comprising low-voltage bus bar and be connected with low-voltage bus bar, comprise main capacitance compensation arrangement and auxiliary capacitor compensation arrangement, described main capacitance compensation arrangement and auxiliary capacitor compensation arrangement are attempted by low-voltage bus bar, described main capacitance compensation arrangement comprises main capacitance compensating controller, main capacitance compensator and switching device, described main capacitance compensator controls switching device by main capacitance compensating controller and is connected on low-voltage bus bar, the control output end of described main capacitance compensating controller is connected with switching device, described low-voltage bus bar is provided with sampled current transformer, described sampled current transformer is connected with main capacitance compensating controller, described auxiliary capacitor compensation arrangement comprises auxiliary capacitor compensating controller and low capacity electric capacity, described low capacity electric capacity controls A.C. contactor by auxiliary capacitor compensating controller and is connected on low-voltage bus bar, described auxiliary capacitor compensation arrangement also comprises the relay I for controlling A.C. contactor, described relay I is connected with the control end of auxiliary capacitor compensation arrangement, and described main capacitance compensating controller is connected with auxiliary capacitor compensating controller.
Further, described low-voltage bus bar is provided with a circuit breaker, also comprise the relay II for controlling breaker open operation, described relay II is connected with the output control terminal of main capacitance compensating controller.
Further, also comprise power factor (PF) abnormity alarm circuit, described power factor (PF) abnormity alarm circuit comprises the time relay, electric room alarm lamp and buzzer, the control input end of the described time relay is connected with main capacitance compensating controller, and described electric room alarm lamp is connected with the output of the time relay with buzzer.
Further, described main capacitance compensation arrangement comprises many group main capacitance compensators and the switching device corresponding with it, and described main capacitance compensating controller comprises the control output end that multiple and above-mentioned switching device is connected.
Further, described main capacitance compensator and low capacity electric capacity are connected with the indicator light being used to indicate current compensator operating state.
Particularly, described main capacitance compensation arrangement comprises 10 groups of main capacitance compensators, and comprising 1 group of 10kvar capacitor, 3 groups of 20kvar capacitors and 6 groups of 30kvar capacitors, described low capacity electric capacity is 5kvar capacitor.
Further, also comprise a compensating cabinet, described low-voltage bus bar, low-pressure line-outgoing, main capacitance compensation arrangement, auxiliary capacitor compensation arrangement are arranged in compensating cabinet, and described compensating cabinet is provided with the user's observation window for observing components and parts in cabinet.
Further, described compensating cabinet comprises control room, electric capacity room and control panel, described user's observation window is arranged in control room, described low-voltage bus bar, low-pressure line-outgoing, switching device, sampled current transformer, A.C. contactor, relay I are arranged in control room, described main capacitance compensator, low capacity electric capacity are arranged in electric capacity room, and described main capacitance compensating controller, auxiliary capacitor compensating controller are arranged on control panel.
The beneficial effects of the utility model are: a kind of low pressure and low power compensation arrangement that the utility model adopts, owing to being respectively arranged with main capacitance compensation arrangement and the auxiliary capacitor compensation arrangement based on low capacity electric capacity, both independent operatings, when electric current in compensating cabinet cannot the reference capacity of switching main capacitance compensation arrangement time, switching fixes low capacity electric capacity, guarantees that the power factor (PF) in circuit is in perfect condition.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and example, the utility model is described in further detail.
Fig. 1 is integrated circuit schematic diagram of the present utility model;
Fig. 2 is the local circuit schematic diagram of the utility model main capacitance compensation arrangement;
Fig. 3 is the local circuit schematic diagram of the utility model auxiliary capacitor compensation arrangement;
Fig. 4 is the topology view of the utility model compensating cabinet.
Embodiment
Shown in Fig. 3, a kind of low pressure and low power compensation arrangement of the present utility model, the low-pressure line-outgoing 2 comprising low-voltage bus bar 1 and be connected with low-voltage bus bar 1, comprise main capacitance compensation arrangement 3 and auxiliary capacitor compensation arrangement 4, described main capacitance compensation arrangement 3 and auxiliary capacitor compensation arrangement 4 are attempted by low-voltage bus bar 1, described main capacitance compensation arrangement 3 comprises main capacitance compensating controller 31, main capacitance compensator 32 and switching device 33, described main capacitance compensator 32 controls switching device 33 by main capacitance compensating controller 31 and is connected on low-voltage bus bar 1, the control output end of described main capacitance compensating controller 31 is connected with switching device 33, described low-voltage bus bar 1 is provided with sampled current transformer 11, described sampled current transformer 11 is connected with main capacitance compensating controller 31, described auxiliary capacitor compensation arrangement 4 comprises auxiliary capacitor compensating controller 41 and low capacity electric capacity 42, described low capacity electric capacity 42 controls A.C. contactor 43 by auxiliary capacitor compensating controller 41 and is connected on low-voltage bus bar 1, described auxiliary capacitor compensation arrangement 4 also comprises the relay I 44 for controlling A.C. contactor 43, described relay I 44 is connected with the control end of auxiliary capacitor compensation arrangement 4, and described main capacitance compensating controller 31 is connected with auxiliary capacitor compensating controller 41.
When the electric current in compensating cabinet 7 cannot the reference capacity of switching main capacitance compensator 32 time, main capacitance compensating controller 31 triggers switching device 33 and disconnects main capacitance compensator 32, trigger auxiliary capacitor compensating controller 41 to work, relay I 44 is closed, and automatic switching fixes low capacity electric capacity 42 simultaneously; When in compensating cabinet 7, electric current reaches switching reference capacity, relay I 44 disconnects, and automatically switches to main capacitance compensator 32 and compensates.The utility model, owing to being respectively arranged with main capacitance compensation arrangement 3 and the auxiliary capacitor compensation arrangement 4 based on low capacity electric capacity 42, both independent operatings, guarantees that the power factor (PF) in circuit is in perfect condition.When electric circuit inspection is overvoltage/undervoltage state, illustrate that this circuit breaks down, disconnect main capacitance compensator 32 and low capacity electric capacity 42, avoid capacitor failure.
Further, also comprise power factor (PF) abnormity alarm circuit 5, described power factor (PF) abnormity alarm circuit 5 comprises the time relay 51, electric room alarm lamp 52 and buzzer 53, the control input end of the described time relay 51 is connected with main capacitance compensating controller 31, and described electric room alarm lamp 52 is connected with the output of buzzer 53 with the time relay 51.When the power factor (PF) of circuit is abnormal, reported to the police by warning circuit, particularly, as average power factor 0.6<COS<0.9, electricity room alarm lamp 52 is glittering, owing to being provided with the time relay 51, therefore electric room alarm lamp 52 being set and continuing glittering 1 hour; As average power factor 0.3<COS<0.6, electric room alarm lamp 52 is glittering, simultaneously buzzer 53 sound, and glittering the warning with buzzer 53 of described electric room alarm lamp 52 continues 1 hour.
The utility model optimizes power factor (PF) abnormity alarm circuit 5, electric room alarm lamp 52 and buzzer 53 the attention rate that greatly can improve user is set.
Described low-voltage bus bar 1 is provided with a circuit breaker 12, also comprise the relay II 34 for controlling circuit breaker 12 separating brake, described relay II 34 is connected with the output control terminal of main capacitance compensating controller 31.When detecting that main capacitance compensating controller 31 detects that in circuit, power factor is less than perception 0.5, when double more throwing power factor (PF) is lower, prove that circuit or controller break down, when dropping into for the 3rd time, electric room alarm lamp 52 is glittering, switching Qi33Zhu road is excised, relay II 34 closes simultaneously, controls circuit breaker 12 open circuit, at this moment, need power-off to recover, security performance of the present utility model can be improved further.
Particularly, described main capacitance compensation arrangement 3 comprises many group main capacitance compensators 32 and the switching device 33 corresponding with it, and described main capacitance compensating controller 31 comprises the control output end that multiple and above-mentioned switching device 33 is connected.Described main capacitance compensation arrangement 3 comprises 10 groups of main capacitance compensators 32, and comprising 1 group of 10kvar capacitor, 3 groups of 20kvar capacitors and 6 groups of 30kvar capacitors, described low capacity electric capacity 42 is 5kvar capacitor.Main capacitance compensating controller 31 can compensate according to the main capacitance compensator 32 of the condition selecting different capabilities of circuital current, its effect compensated and better adaptability, in addition, by arranging the low capacity electric capacity 42 that capacity is 5kvar, in compensating cabinet 7 electric current cannot switching main capacitance compensator 32 time, energy automatic switching low capacity electric capacity 42, makes the power factor (PF) in circuit be in optimum state.
Further, described main capacitance compensator 32 and low capacity electric capacity 42 are connected with the indicator light 6 being used to indicate current compensator operating state.Be used to indicate the switching state of main capacitance compensator 32 and low capacity electric capacity 42.
With reference to shown in Fig. 4, above-mentioned all circuit are all arranged in a compensating cabinet 7, described compensating cabinet 7 comprises control room 72, electric capacity room 73 and control panel 74, described main capacitance compensator 32, auxiliary capacitor compensating controller 41 is arranged in electric capacity room 73, described main capacitance compensating controller 31, auxiliary capacitor compensating controller 41, indicator light 6 is arranged on control panel 74, described low-voltage bus bar 1, low-pressure line-outgoing 2, sampled current transformer 11, circuit breaker 12 switching device 33, relay I 44, relay II 34, A.C. contactor 43 is arranged in control room 72, wherein be provided with user's observation window 71 in control room 72, facilitate user under the state do not had a power failure, observe components and parts in compensating cabinet 7 and whether be in reliable state.
The above, just preferred embodiment of the present utility model, the utility model is not limited to above-mentioned execution mode, as long as it reaches technique effect of the present utility model with identical means, all should belong to protection range of the present utility model.
Claims (8)
1. a low pressure and low power compensation arrangement, the low-pressure line-outgoing (2) comprising low-voltage bus bar (1) and be connected with low-voltage bus bar (1), it is characterized in that: comprise main capacitance compensation arrangement (3) and auxiliary capacitor compensation arrangement (4), described main capacitance compensation arrangement (3) and auxiliary capacitor compensation arrangement (4) are attempted by low-voltage bus bar (1), described main capacitance compensation arrangement (3) comprises main capacitance compensating controller (31), main capacitance compensator (32) and switching device (33), described main capacitance compensator (32) controls switching device (33) by main capacitance compensating controller (31) and is connected on low-voltage bus bar (1), the control output end of described main capacitance compensating controller (31) is connected with switching device (33), described low-voltage bus bar (1) is provided with sampled current transformer (11), described sampled current transformer (11) is connected with main capacitance compensating controller (31), described auxiliary capacitor compensation arrangement (4) comprises auxiliary capacitor compensating controller (41) and low capacity electric capacity (42), described low capacity electric capacity (42) controls A.C. contactor (43) by auxiliary capacitor compensating controller (41) and is connected on low-voltage bus bar (1), described auxiliary capacitor compensation arrangement (4) also comprises the relay I (44) for controlling A.C. contactor (43), described relay I (44) is connected with the control end of auxiliary capacitor compensation arrangement (4), described main capacitance compensating controller (31) is connected with auxiliary capacitor compensating controller (41).
2. a kind of low pressure and low power compensation arrangement according to claim 1, it is characterized in that: described low-voltage bus bar (1) is provided with a circuit breaker (12), also comprise the relay II (34) for controlling circuit breaker (12) separating brake, described relay II (34) is connected with the output control terminal of main capacitance compensating controller (31).
3. a kind of low pressure and low power compensation arrangement according to claim 1, it is characterized in that: also comprise power factor (PF) abnormity alarm circuit (5), described power factor (PF) abnormity alarm circuit (5) comprises the time relay (51), electric room alarm lamp (52) and buzzer (53), the control input end of the described time relay (51) is connected with main capacitance compensating controller (31), and described electric room alarm lamp (52) is connected with the output of buzzer (53) with the time relay (51).
4. a kind of low pressure and low power compensation arrangement according to claim 1, it is characterized in that: described main capacitance compensation arrangement (3) comprises many groups main capacitance compensator (32) and the switching device (33) corresponding with it, and described main capacitance compensating controller (31) comprises the control output end that multiple and above-mentioned switching device (33) is connected.
5. a kind of low pressure and low power compensation arrangement according to claim 4, is characterized in that: described main capacitance compensator (32) and low capacity electric capacity (42) are connected with the indicator light (6) being used to indicate current compensator operating state.
6. a kind of low pressure and low power compensation arrangement according to claim 4, it is characterized in that: described main capacitance compensation arrangement (3) comprises 10 groups of main capacitance compensators (32), comprising 1 group of 10kvar capacitor, 3 groups of 20kvar capacitors and 6 groups of 30kvar capacitors, described low capacity electric capacity (42) is 5kvar capacitor.
7. a kind of low pressure and low power compensation arrangement according to claim 1, it is characterized in that: also comprise a compensating cabinet (7), described low-voltage bus bar (1), low-pressure line-outgoing (2), main capacitance compensation arrangement (3), auxiliary capacitor compensation arrangement (4) are arranged in compensating cabinet (7), and described compensating cabinet (7) is provided with the user's observation window (71) for observing components and parts in cabinet.
8. a kind of low pressure and low power compensation arrangement according to claim 7, it is characterized in that: described compensating cabinet (7) comprises control room (72), electric capacity room (73) and control panel (74), described user's observation window (71) is arranged in control room (72), described low-voltage bus bar (1), low-pressure line-outgoing (2), switching device (33), sampled current transformer (11), A.C. contactor (43), relay I (44) is arranged in control room (72), described main capacitance compensator (32), low capacity electric capacity (42) is arranged in electric capacity room (73), described main capacitance compensating controller (31), auxiliary capacitor compensating controller (41) is arranged on control panel (74).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429575.0U CN204118746U (en) | 2014-07-31 | 2014-07-31 | A kind of low pressure and low power compensation arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429575.0U CN204118746U (en) | 2014-07-31 | 2014-07-31 | A kind of low pressure and low power compensation arrangement |
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| Publication Number | Publication Date |
|---|---|
| CN204118746U true CN204118746U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420429575.0U Expired - Lifetime CN204118746U (en) | 2014-07-31 | 2014-07-31 | A kind of low pressure and low power compensation arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204118746U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879713A (en) * | 2018-06-28 | 2018-11-23 | 中石化南京工程有限公司 | A kind of setting method of reactive power compensation device sampled current transformer position |
| CN117691621A (en) * | 2024-01-31 | 2024-03-12 | 山东新大陆电力股份有限公司 | Low-voltage switch capacitance compensation cabinet based on Internet of things |
-
2014
- 2014-07-31 CN CN201420429575.0U patent/CN204118746U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879713A (en) * | 2018-06-28 | 2018-11-23 | 中石化南京工程有限公司 | A kind of setting method of reactive power compensation device sampled current transformer position |
| CN117691621A (en) * | 2024-01-31 | 2024-03-12 | 山东新大陆电力股份有限公司 | Low-voltage switch capacitance compensation cabinet based on Internet of things |
| CN117691621B (en) * | 2024-01-31 | 2024-04-12 | 山东新大陆电力股份有限公司 | Low-voltage switch capacitance compensation cabinet based on Internet of things |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150121 |