CN205039548U - Low -voltage reactive power compensation device - Google Patents
Low -voltage reactive power compensation device Download PDFInfo
- Publication number
- CN205039548U CN205039548U CN201520795404.4U CN201520795404U CN205039548U CN 205039548 U CN205039548 U CN 205039548U CN 201520795404 U CN201520795404 U CN 201520795404U CN 205039548 U CN205039548 U CN 205039548U
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- China
- Prior art keywords
- circuit
- reactive power
- casing
- low
- voltage reactive
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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
Abstract
The utility model relates to an electric automatization field, the utility model aims at providing an automatic switch -over damages the low -voltage reactive power compensation device of condenser, protection circuit. The technical scheme who adopts is: a low -voltage reactive power compensation device, includes the box, is equipped with the three group's capacitor bank spares that are triangle -shaped and arrange in the box, and every group capacitor bank spare includes two independent capacitor wares, and two independent capacitor wares pass through single -pole double -throw and insert the triangle -shaped circuit, and the three summit of triangle -shaped circuit is passed through the wire and is connected on three -phase circuit, be equipped with circuit signal sample thief connection observing and controlling protection device input on establishing interior temperature sensor and three -phase circuit in the box, observe and control protection device output connect protection circuit, the utility model discloses the condenser punctured or the condition about damaging under the impaired condenser of automatic switch -over, guarantee that compensation arrangement normally operates, observe and control protection compensation arrangement place circuit simultaneously, provide convenience for the maintenance work.
Description
Technical field
The utility model belongs to electric automatization field, is specifically related to a kind of inactivity compensation device.
Background technology
Electric substation in electric power system or direct at electric power users electric substation installing reactive power power supply, to change the flowing of reactive power in electric power system, thus improve the voltage levvl of electric power system, reduce via net loss and the dynamic property improving electric power system, this technical measures are called reactive power compensation.This power can cause voltage-drop (during inductive reactance) or voltage to raise (during condensance) and resistance heating loss in electrical network, but can not make effective merit.Thus need to compensate reactive power.Reasonable disposition reactive power compensation (where comprise, with much capacity and adopt which kind of pattern) is an important content in power system planning and design work.Be in operation, reasonable employment reactive compensation capacity, the flowing controlling reactive power is one of groundwork of power system dispatching.
In application at ordinary times, modal is exactly that low pressure grouping compensates and high pressure centralized compensation, and in low pressure grouping compensation, local reactive power compensation is carried out to outdoor power distribution station, directly equipment is installed in the hanging outdoor equipment box of post, because each compensation arrangement is dispersed in different power distribution room, cause monitoring difficulty, going wrong also cannot Timeliness coverage solving, and easily causes compensation arrangement to play effect, the impaired even initiation fire of circuit.
Summary of the invention
The purpose of this utility model is to provide a kind of observing and controlling reactive power compensator function situation, automatically switches and damages capacitor, the low-voltage reactive power rate compensation arrangement of protective circuit.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of low-voltage reactive power rate compensation arrangement, comprise casing, casing is provided with ventilating opening, casing front is the chamber door of band keeper, and be provided with three group capacitor assemblies of arrangement triangular in shape in casing, every group capacitor assembly comprises two separate capacitors, two separate capacitors access delta network by single-pole double-throw switch (SPDT), and delta network three summits are connected on three-phase circuit by wire;
Temperature sensor is provided with in described casing, described three-phase circuit is provided with circuit signal sampler, described temperature sensor is connected measuring and controlling protective device input with circuit signal sampler, described measuring and controlling protective device comprises power supply, power supply is connection signal amplifying circuit in turn, control module and protection module, described input connection signal amplifying circuit, described protection module connects protective circuit by signal output part; Described protective circuit comprises man-machine circuit and the control circuit being connected described single-pole double-throw switch (SPDT).
Preferred: two separate capacitors specifications of each group described are identical.
Preferred: described circuit signal sampler is voltage sample device or current sampler.
Aforementioned arbitrary structures can be preferred further: described measuring and controlling protective device is positioned at casing outside and is provided with multiple input, and each input connects temperature sensor and the circuit signal sampler of different circuit.
The utility model has following beneficial effect: automatically switch when realizing or damage breakdown at capacitor impaired capacitor, ensures compensation arrangement normal operation; Monitoring and protection compensation arrangement place circuit, reflects circuit conditions, in time also for maintenance work is provided convenience simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of measuring and controlling protective device.
Embodiment
A kind of low-voltage reactive power rate compensation arrangement as shown in Figure 1, comprise casing 1, casing 1 is provided with ventilating opening, and casing 1 front is the chamber door 11 of band keeper 12, ensure casing 1 ventilation and heat, prevent the problems such as the too high capacitor electrolyte that may cause of temperature punctures.In order to realize the Timeliness coverage when fault and deal with problems, three group capacitor assemblies of arrangement triangular in shape are provided with in casing 1, every group capacitor assembly comprises the separate capacitors 2 of two same sizes, two separate capacitors 2 access delta network by single-pole double-throw switch (SPDT) 21, and delta network three summits connect three-phase circuit.The Position Number 1,2 that two separate capacitors 2 are placed can be given in use procedure; unify to be No. 1 outside delta network; inner side is No. 2; during First Contact Connections, two single-pole double-throw switch (SPDT)s 21 all connect No. 1 separate capacitors 2; if No. 1 separate capacitors 2 punctures or damages; adjust to No. 2 separate capacitors 2 by measuring and controlling protective device 4 then in time; and notify staff; if No. 1 is damaged and does not also have enough time to repair later; No. 2 have also been damaged; then direct open circuit giving the alarm, reminds staff to safeguard.Which solves during low pressure grouping compensates and cause particular problem to be investigated because of compensation arrangement dispersion and safeguard the problem of a large amount of cost of labor of waste, and timely switch-capacitor, ensure that circuit normally works.
The part of circuit monitoring and protection as shown in Figure 2; temperature sensor 5 is provided with in described casing 1; described three-phase circuit is provided with circuit signal sampler 3; described temperature sensor 5 is connected measuring and controlling protective device 4 input with circuit signal sampler 3, and described circuit signal sampler 3 is voltage sample device or current sampler.In capacitor uses, common damage all shows as that electric current is excessive or temperature is too high, and electric current and voltage swing and spin manifold temperature in testing circuit, can realize the observing and controlling to whole plant running state simultaneously.
Described measuring and controlling protective device 4 comprises power supply 41, and power supply 41 is connection signal amplifying circuit 42 in turn, control module 43 and protection module 44.Described input connection signal amplifying circuit 42, described protection module 44 connects protective circuit 6 by signal output part.Described protective circuit 6 comprises and being connected on the computer of control room for reflecting the man-machine circuit of equipment working state and controlling the control circuit that described single-pole double-throw switch (SPDT) 21 switches.By signal amplification circuit 42; the signal amplification that temperature sensor 5 and circuit signal sampler 3 gather is transferred to control module 43 be analyzed; then by protection module 44 according to result output order; man-machine Circuit Reports situation is given by signal transmission; the air switch of single-pole double-throw switch (SPDT) 21 and three-phase circuit is adjusted in time when breaking down; prevent circuit from occurring larger fault, send signal simultaneously and remind staff to safeguard in time.
According to the actual conditions that grouping compensates, it is outside that described measuring and controlling protective device 4 is positioned at casing 1, and preventing casing 1 temperature from rising affects the work of measuring and controlling protective device 4.If there are two even multiple compensation arrangements to be arranged together; a measuring and controlling protective device 4 can be shared; only need to arrange multiple input; each input connects temperature sensor 5 and the circuit signal sampler 3 of different circuit, and control module 43 and protection module 44 share, and output to man-machine circuit and also complete in the lump; and output to protective circuit and need to be connected respectively to different compensation arrangements; if circuit is not complicated especially, can adopt this optimal way, implementation structure simplifies and function i ntegration.
Claims (4)
1. a low-voltage reactive power rate compensation arrangement, comprise casing (1), casing (1) is provided with ventilating opening, casing (1) front is the chamber door (11) of band keeper (12), it is characterized in that: the three group capacitor assemblies being provided with arrangement triangular in shape in casing (1), every group capacitor assembly comprises two separate capacitors (2), and two separate capacitors (2) are by single-pole double-throw switch (SPDT) (21) access delta network, and delta network three summits are connected on three-phase circuit by wire;
Be provided with temperature sensor (5) in described casing (1), described three-phase circuit is provided with circuit signal sampler (3), and described temperature sensor (5) is connected measuring and controlling protective device (4) input with circuit signal sampler (3); Described measuring and controlling protective device (4) comprises power supply (41), and power supply (41) is connection signal amplifying circuit (42) in turn, control module (43) and protection module (44); Described input connection signal amplifying circuit (42), described protection module (44) connects protective circuit (6) by signal output part; Described protective circuit (6) comprises man-machine circuit and the control circuit being connected described single-pole double-throw switch (SPDT) (21).
2. low-voltage reactive power rate compensation arrangement according to claim 1, is characterized in that: two separate capacitors (2) specifications of each group described are identical.
3. low-voltage reactive power rate compensation arrangement according to claim 2, is characterized in that: described circuit signal sampler (3) is voltage sample device or current sampler.
4. low-voltage reactive power rate compensation arrangement according to claim 3; it is characterized in that: described measuring and controlling protective device (4) is positioned at casing (1) outside and is provided with multiple input, and each input connects temperature sensor (5) and the circuit signal sampler (3) of different circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520795404.4U CN205039548U (en) | 2015-10-15 | 2015-10-15 | Low -voltage reactive power compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520795404.4U CN205039548U (en) | 2015-10-15 | 2015-10-15 | Low -voltage reactive power compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205039548U true CN205039548U (en) | 2016-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520795404.4U Expired - Fee Related CN205039548U (en) | 2015-10-15 | 2015-10-15 | Low -voltage reactive power compensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205039548U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107403694A (en) * | 2017-08-31 | 2017-11-28 | 池州市容大电气有限公司 | A kind of capacitor with spare capacitor |
| CN111641218A (en) * | 2020-06-16 | 2020-09-08 | 遵义长征电器设备有限责任公司 | Triangular connection type capacitance reactive power compensation device |
-
2015
- 2015-10-15 CN CN201520795404.4U patent/CN205039548U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107403694A (en) * | 2017-08-31 | 2017-11-28 | 池州市容大电气有限公司 | A kind of capacitor with spare capacitor |
| CN111641218A (en) * | 2020-06-16 | 2020-09-08 | 遵义长征电器设备有限责任公司 | Triangular connection type capacitance reactive power compensation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20191015 |