CN104333014A - Power factor compensation device of high-voltage generator system - Google Patents
Power factor compensation device of high-voltage generator system Download PDFInfo
- Publication number
- CN104333014A CN104333014A CN201410660836.4A CN201410660836A CN104333014A CN 104333014 A CN104333014 A CN 104333014A CN 201410660836 A CN201410660836 A CN 201410660836A CN 104333014 A CN104333014 A CN 104333014A
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- power factor
- factor compensation
- voltage generator
- generator system
- circuit
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- 238000007689 inspection Methods 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a power factor compensation device of a high-voltage generator system; belonging to the technical field of reactive power compensation devices; the power factor compensation device is characterized by comprising an outgoing line cabinet connected with the output end of a generator, wherein a three-phase current transformer, a three-phase voltage transformer, a vacuum circuit breaker and an isolating switch are sequentially connected in the outgoing line cabinet; the outgoing line cabinet and each power factor compensation unit are connected with a control protection terminal; the invention aims to provide the power factor compensation device of the high-voltage generator system, which has the advantages of reasonable structure, lower processing cost and simple and convenient operation; the method is used for reactive compensation of the high-voltage generator.
Description
Technical field
The present invention relates to a kind of high-voltage generator auxiliary-circuit devices, more particularly, particularly relate to a kind of high-voltage generator system power factor compensation arrangement.
Background technology
Generating set, as a kind of power supply, is mainly used in and generates electricity by way of merging two or more grid systems.Its load is mainly inductive load, capacitive load and resistive load three class, except purely resistive bearing power factor, be that inductive load (power factor (PF) is delayed) or capacitive load (power factor (PF) is advanced) all can produce the low problem of system power factor, namely reactive loss is larger.Power system operation capacity required must install reactive power compensator additional in 100KVA and above system.Existing reactive power compensator, mainly in units of Unified Power user terminal or transformer station's collection be compensate, easily like this cause resonance, need linked reactor to use.This just makes whole installation cost greatly improve, and operation is comparatively complicated.At present, High-voltage generator set also do not have compensation arrangement.
Summary of the invention
The object of the invention is to for above-mentioned the deficiencies in the prior art, a kind of rational in infrastructure, high-voltage generator system power factor compensation arrangement that processing cost is lower and easy and simple to handle is provided.
Technical scheme of the present invention is achieved in that a kind of high-voltage generator system power factor compensation arrangement, comprise the outgoing line cabinet be connected with generator output end, threephase current transformer, threephase potential transformer, vacuum circuit-breaker and isolating switch is sequentially connected with in outgoing line cabinet, threephase current transformer is connected with generator output end, wherein said isolating switch is connected with some power distribution cabinets, in each power distribution cabinet, be provided with power factor compensation unit, power factor compensation unit forms primarily of the vacuum contactor sequentially connected, high-voltage fuse and electric capacity; Outgoing line cabinet and each power factor compensation unit are connected with Control protection terminal.
In above-mentioned a kind of high-voltage generator system power factor compensation arrangement, the circuit between described high-voltage fuse and electric capacity is also connected with voltage transformer and the discharge indicating lamp of series connection mutually.
In above-mentioned a kind of high-voltage generator system power factor compensation arrangement, be provided with at least three group power factor compensation unit in described power distribution cabinet, each group power factor compensation unit is parallel with one another.
In above-mentioned a kind of high-voltage generator system power factor compensation arrangement, described Control protection terminal comprises manual overvide, protective device and display unit.
In above-mentioned a kind of high-voltage generator system power factor compensation arrangement, described threephase current transformer is connected with overcurrent relay, and the signal output part of overcurrent relay is connected with vacuum circuit-breaker.
In above-mentioned a kind of high-voltage generator system power factor compensation arrangement, described threephase potential transformer is connected with the first inspection pressure contrast circuit, and the signal output part of the first inspection pressure contrast circuit is connected with vacuum circuit-breaker.
In above-mentioned a kind of high-voltage generator system power factor compensation arrangement, each vacuum contactor is connected with PLC control unit by holding wire, and PLC control unit is sequentially connected with indicator light, button and power switch.
In above-mentioned a kind of high-voltage generator system power factor compensation arrangement, circuit between each group of interconnective voltage transformer and discharge indicating lamp is sequentially connected with time-delay relay and the second inspection pressure contrast circuit, the signal output part of each second inspection pressure contrast circuit connects with corresponding vacuum contactor.
After the present invention adopts said structure, adopt many group power factor compensation unit, select the quantity of enabling according to actual needs, effectively can reduce rush of current, avoid resonance.Eliminate reactor, the processing cost of whole device is significantly reduced.Meanwhile, voltage transformer and the discharge indicating lamp of series connection is mutually set in power factor compensation unit, is undertaken discharging and indicate operation by discharge indicating lamp, kill two birds with one stone.By compensation arrangement of the present invention, effectively can reduce the reactive loss of high-voltage generator, make generator not overheated when power factor (PF) is low, reduce machine temperature, improve generating efficiency.
Accompanying drawing explanation
Below in conjunction with the embodiment in accompanying drawing, the present invention is described in further detail, but do not form any limitation of the invention.
Fig. 1 is electrical block diagram of the present invention.
In figure: outgoing line cabinet 1, threephase current transformer 2, threephase potential transformer 3, vacuum circuit-breaker 4, isolating switch 5, power distribution cabinet 6, power factor compensation unit 7, vacuum contactor 7a, high-voltage fuse 7b, electric capacity 7c, voltage transformer 7d, discharge indicating lamp 7e, Control protection terminal 8, manual overvide 8a, protective device 8b, display unit 8c, overcurrent relay 9, first inspection pressure contrast circuit 10, PLC control unit 11, indicator light 12, button 13, power switch 14, time-delay relay 15, second inspection pressure contrast circuit 16.
Embodiment
Consult shown in Fig. 1, a kind of high-voltage generator system power factor compensation arrangement of the present invention, comprise the outgoing line cabinet 1 be connected with generator output end, threephase current transformer 2, threephase potential transformer 3, vacuum circuit-breaker 4 and isolating switch 5 is sequentially connected with in outgoing line cabinet 1, isolating switch 5 is main to be used when system is safeguarded, and vacuum circuit-breaker 4 works when system malfunctions.Threephase current transformer 2 is connected with generator output end, isolating switch 5 is connected with some power distribution cabinets 6, power factor compensation unit 7 is provided with in each power distribution cabinet 6, be provided with at least three group power factor compensation unit 7 in power distribution cabinet 6 described in the present embodiment, each group power factor compensation unit 7 is parallel with one another.Power factor compensation unit 7 forms primarily of the vacuum contactor 7a sequentially connected, high-voltage fuse 7b and electric capacity 7c.It mainly utilizes the phase shift function of capacitor to compensate.Vacuum contactor 7a plays folding circuit.Meanwhile, the voltage transformer 7d and discharge indicating lamp 7e, the discharge indicating lamp 7e that the circuit between described high-voltage fuse 7b and electric capacity 7c are also connected with series connection mutually have electric discharge and indicative function simultaneously; Outgoing line cabinet 1 and each power factor compensation unit 7 are connected with Control protection terminal 8.Described Control protection terminal 8 comprises manual overvide 8a, protective device 8b and display unit 8c; manual overvide 8a wherein and display unit 8c all can adopt remote controlled manner or on the spot control mode or both have concurrently, protective device 8b mainly has time delay and overcompensation defencive function.Said apparatus is general knowledge known in this field, does not repeat them here.
Further, according to the situation of high-voltage generator in the present embodiment, the equipment of going back has protective circuit, specific as follows:
Described threephase current transformer 2 is connected with overcurrent relay 9, and the signal output part of overcurrent relay 9 is connected with vacuum circuit-breaker 4.When overcurrent relay 9 detects the current anomaly of threephase current transformer 2, namely send signal and cut off the electricity supply to vacuum circuit-breaker 4.
The signal output part that described threephase potential transformer 3 is connected with the first inspection pressure contrast circuit 10, first inspection pressure contrast circuit 10 is connected with vacuum circuit-breaker 4.When the first inspection pressure contrast circuit 10 detects the electric voltage exception of threephase potential transformer 3, namely send signal and cut off the electricity supply to vacuum circuit-breaker 4.
Each vacuum contactor is connected with PLC control unit 11 by holding wire, and PLC control unit 11 is sequentially connected with indicator light 12, button 13 and power switch 14.By PLC control unit 11, controlling each power factor compensation unit 7 can only single grid-connected use.
Circuit between each group of interconnective voltage transformer 7d and discharge indicating lamp 7e is sequentially connected with time-delay relay 15 and the second inspection pressure contrast circuit 16, the signal output part of each second inspection pressure contrast circuit 16 connects with corresponding vacuum contactor 7a.When the circuit that the second inspection pressure contrast circuit 16 detects between voltage transformer 7d and discharge indicating lamp 7e also having electricity, namely sending signal and cutting off the electricity supply to vacuum contactor 7a.
Above illustrated embodiment is better embodiment of the present invention, only be used for conveniently the present invention being described, not any pro forma restriction is done to the present invention, have in any art and usually know the knowledgeable, if do not depart from the present invention carry in the scope of technical characteristic, utilize the Equivalent embodiments that the done local of disclosed technology contents is changed or modified, and do not depart from technical characteristic content of the present invention, all still belong in the scope of the technology of the present invention feature.
Claims (8)
1. a high-voltage generator system power factor compensation arrangement, comprise the outgoing line cabinet (1) be connected with generator output end, threephase current transformer (2) is sequentially connected with in outgoing line cabinet (1), threephase potential transformer (3), vacuum circuit-breaker (4) and isolating switch (5), threephase current transformer (2) is connected with generator output end, it is characterized in that, described isolating switch (5) is connected with some power distribution cabinets (6), power factor compensation unit (7) is provided with in each power distribution cabinet (6), power factor compensation unit (7) is primarily of the vacuum contactor sequentially connected (7a), high-voltage fuse (7b) and electric capacity (7c) composition, outgoing line cabinet (1) and each power factor compensation unit (7) are connected with Control protection terminal (8).
2. a kind of high-voltage generator system power factor compensation arrangement according to claim 1, it is characterized in that, the circuit between described high-voltage fuse (7b) and electric capacity (7c) is also connected with voltage transformer (7d) and the discharge indicating lamp (7e) of series connection mutually.
3. a kind of high-voltage generator system power factor compensation arrangement according to claim 1 and 2, it is characterized in that, be provided with at least three group power factor compensation unit (7) in described power distribution cabinet (6), each group power factor compensation unit (7) is parallel with one another.
4. a kind of high-voltage generator system power factor compensation arrangement according to claim 1; it is characterized in that, described Control protection terminal (8) comprises manual overvide (8a), protective device (8b) and display unit (8c).
5. a kind of high-voltage generator system power factor compensation arrangement according to claim 1, it is characterized in that, described threephase current transformer (2) is connected with overcurrent relay (9), and the signal output part of overcurrent relay (9) is connected with vacuum circuit-breaker (4).
6. a kind of high-voltage generator system power factor compensation arrangement according to claim 1, it is characterized in that, described threephase potential transformer (3) is connected with the first inspection pressure contrast circuit (10), and the signal output part of the first inspection pressure contrast circuit (10) is connected with vacuum circuit-breaker (4).
7. a kind of high-voltage generator system power factor compensation arrangement according to claim 1, it is characterized in that, each vacuum contactor (4) is connected with PLC control unit (11) by holding wire, and PLC control unit (11) is sequentially connected with indicator light (12), button (13) and power switch (14).
8. a kind of high-voltage generator system power factor compensation arrangement according to claim 2, it is characterized in that, circuit between each group of interconnective voltage transformer (7d) and discharge indicating lamp (7e) is sequentially connected with time-delay relay (15) and the second inspection pressure contrast circuit (16), the signal output part of each second inspection pressure contrast circuit (16) connects with corresponding vacuum contactor (7a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410660836.4A CN104333014B (en) | 2014-11-18 | 2014-11-18 | Power factor compensation device of high-voltage generator system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410660836.4A CN104333014B (en) | 2014-11-18 | 2014-11-18 | Power factor compensation device of high-voltage generator system |
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| CN104333014A true CN104333014A (en) | 2015-02-04 |
| CN104333014B CN104333014B (en) | 2017-03-01 |
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| CN201410660836.4A Active CN104333014B (en) | 2014-11-18 | 2014-11-18 | Power factor compensation device of high-voltage generator system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0348938A1 (en) * | 1988-07-01 | 1990-01-03 | Loher Aktiengesellschaft | Current producing plant supplying mains and consumer |
| CN203086147U (en) * | 2013-01-21 | 2013-07-24 | 韦琪 | Device improving overload capacity of alternating current generator |
| CN203466572U (en) * | 2013-09-22 | 2014-03-05 | 日照宏德电器设备有限公司 | High-voltage reactive power compensation apparatus |
| CN204156531U (en) * | 2014-11-18 | 2015-02-11 | 梅县洁源水电有限公司 | High-voltage generator system power factor compensation arrangement |
-
2014
- 2014-11-18 CN CN201410660836.4A patent/CN104333014B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0348938A1 (en) * | 1988-07-01 | 1990-01-03 | Loher Aktiengesellschaft | Current producing plant supplying mains and consumer |
| CN203086147U (en) * | 2013-01-21 | 2013-07-24 | 韦琪 | Device improving overload capacity of alternating current generator |
| CN203466572U (en) * | 2013-09-22 | 2014-03-05 | 日照宏德电器设备有限公司 | High-voltage reactive power compensation apparatus |
| CN204156531U (en) * | 2014-11-18 | 2015-02-11 | 梅县洁源水电有限公司 | High-voltage generator system power factor compensation arrangement |
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| CN104333014B (en) | 2017-03-01 |
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Address after: 514779 third floor, Meijiang Plaza, No. 45, Yanjiang South Road, Meixian District, Meizhou City, Guangdong Province Patentee after: Guangdong Jieyuan hydropower Co.,Ltd. Address before: 514779 Meixian Jieyuan hydropower Co., Ltd., Yanyang Town, Meixian District, Meizhou City, Guangdong Province Patentee before: MEIXIAN JIEYUAN HYDROPOWER Co.,Ltd. |