CN202997339U - Low-voltage capacitor compensation cabinet - Google Patents
Low-voltage capacitor compensation cabinet Download PDFInfo
- Publication number
- CN202997339U CN202997339U CN 201220616686 CN201220616686U CN202997339U CN 202997339 U CN202997339 U CN 202997339U CN 201220616686 CN201220616686 CN 201220616686 CN 201220616686 U CN201220616686 U CN 201220616686U CN 202997339 U CN202997339 U CN 202997339U
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- cabinet
- electrically connected
- low
- contactor
- voltage capacitance
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- Expired - Fee Related
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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 discloses a low-voltage capacitor compensation cabinet, comprising a cabinet body; wherein the cabinet body is provided with a plurality of capacitors, relays, and a plurality of AC (Alternating Current) contactors therein; the capacitors are successively electrically connected with the relays, the AC contactors, and three current transformers; an upper part of a front surface of the cabinet body is provided with a power compensation controller, a power factor meter, and three ammeters; the power compensation controller and a manual/automatic change-over switch are respectively electrically connected with the each AC contactor, a switch indicating lamp is electrically connected with the corresponding AC contactor; the power factor meter is electrically connected with the power compensation controller; and the relays are electrically connected with a computer arranged in a control room through communication cables. The low-voltage capacitor compensation cabinet of the utility model has a perfect automatic protection function, can effectively raise power utilization safety, and can effectively raise a service life of a capacitor; in addition, the low-voltage capacitor compensation cabinet of the utility model has a timely fault alarm function, thereby reducing loss caused by the fault; and the low-voltage capacitor compensation cabinet also has the advantages of good heat dissipation, safe and stable equipment operation.
Description
Technical field
The utility model relates to capacitor box, especially relates to a kind of low-voltage capacitance compensating cabinet with remote alarming function.
Background technology
The low-voltage capacitance reactive power compensation cabinet has been widely used in industrial electric power system, goes for the production equipment circuits such as motor, transformer, electric welding machine.Common capacitor compensation cabinet is without the remote alarm function, and the monitor staff in the control room can't in time find the abnormal failure of low-voltage capacitance reactive power compensation cabinet, can't the very first time carry out manual intervention, can not in time get rid of fault.
Chinese patent mandate publication number CN202353226U, authorized open day 2012 7 years 25 days, a kind of low voltage reactive compensation cabinet is disclosed, mainly comprise cabinet, cabinet inside is provided with capacitor, reactor, switch with knifeshaped fuse, fuse, fling-cut switch, controller, and the panel of cabinet is provided with power factor meter, ammeter, change over switch, facilitate the user to carry out real-time monitored, fling-cut switch adopts thyratron transistor, and the cabinet top is provided with the blower fan of heat transmission, and panel is provided with the air-blower control switch.This utility model has the good characteristics of thermal diffusivity.
Summary of the invention
The utility model is not have the deficiency of remote alarming function in order to overcome capacitance compensation of the prior art, provides to realize automated capacitive switching and manual capacitor switching, and has had the low-voltage capacitance compensating cabinet of remote alarming function.
To achieve these goals, the utility model is by the following technical solutions:
A kind of low-voltage capacitance compensating cabinet comprises cabinet, is provided with several capacitors, several relays and several A.C. contactors in described cabinet, and the individual number average of the number of capacitor and A.C. contactor equates with the number of relay; Capacitor is electrically connected to successively with relay, A.C. contactor, 3 current transformers; Cabinet front surface top is provided with power compensating controller, power factor meter, 3 ammeters, several switching indicator lights and the manual/auto change over switch corresponding with each capacitor, and ammeter is electrically connected to current transformer; Power compensating controller and manual/auto change over switch are electrically connected to each A.C. contactor respectively, and the switching indicator light is electrically connected to corresponding A.C. contactor; Power factor meter is electrically connected to power compensating controller; Described relay is electrically connected to computer in being located at the control room by telecommunication cable.
Low-voltage capacitance compensating cabinet of the present utility model can manually reach and automatically carry out capacitor switching, uses convenient; And capacitor box is connected with computer in being located at the control room, and when capacitor box occurs when abnormal, computer can send warning message, and the monitor staff can in time find and notify the attendant that fault is confirmed to process.
Power factor meter is used for measuring the power factor on the circuit that is input to this low-voltage capacitance compensating cabinet; power compensating controller carries out the operation of closure and disconnection according to the capacitance of power factor and needs compensation to A.C. contactor, relay provides the protections such as overcurrent, superpressure, under-voltage, phase shortage, electric leakage and short circuit to system.3 ammeters are used for the electric current of each phase of measuring circuit.The switching indicator light is respectively used to indicate switching and the excision state of electric capacity of the capacitor on corresponding road.
Manual/auto change over switch has manually, auto-conversion function, and when switch was beaten at automatic catch, power compensating controller carried out capacitor switching automatically according to power factor and voltage, capacitance; When switch is beaten when manual, the attendant carries out manually order switching capacitance according to the indication of ammeter and power factor meter, successively switch is got to the first via, the second tunnel ..., the electric capacity of the capacitor on corresponding each road is advanced in circuit by switching.This switching mode has easy to operate, adaptable characteristics.
Computer is connected with each capacitor loops by relay, when the abnormal conditions such as phase shortage, short circuit, electric leakage, overvoltage, overcurrent and capacitance deficiency occurring, computer can send warning message, thereby makes the attendant in time confirm to process to fault, prevents that fault from further enlarging.
As preferably, the capacitance of described each capacitor is divided into several grades.
The capacitor that is divided into several grades, can be combined into a plurality of different capacitances and, be convenient to switching capacitance.
As preferably, described computer is electrically connected to alarm lamp and audio amplifier.Alarm lamp and audio amplifier are respectively used to send light, acoustic alarm signal, remind attendant's capacitor box to break down.
As preferably, cabinet front surface middle part is provided with the Qianmen, and the cabinet rear surface is provided with the back door, and the cabinet bottom is provided with the louvre group of arrangement, and the position corresponding with isolating switch at Qianmen is provided with the isolator operation hole.
The louvre group is used for the heat of capacitor box is shed, and the attended operation of equipment is convenient in the setting of forward and backward door, and the setting in isolator operation hole is convenient under the state of not opening the Qianmen, and tool using disconnects isolating switch and closed operation.
As preferably, the Qianmen is provided with several LCDs that are connected with each relay respectively.LCDs shows respectively voltage, electric current, switching and the excision state of each capacitor loops.
As preferably, the inwall of the Over-The-Counter plate of cabinet and the inwall at back door are respectively equipped with blower fan.
Blower fan is used for to the equipment cooling in cabinet, thereby guarantees each device security, stable work.
As preferably, be provided with several lightning arresters in cabinet.
As preferably, relay is electronic thermal relay, is used for providing overcurrent protection, rotation-clogging protection, three-phase imbalance protection, open-phase protection, earth leakage protective, short-circuit protection and superpressure, under-voltage protection.Electronic thermal relay has advantages of the function that measurement parameter is directly perceived, it is reliably timely to be quick on the draw, to move and remote monitoring can be provided.
Electronic thermal relay is compared with the ordinary hot relay; thermal relay plays the effect of good protection circuit, in the very unsettled situation of conversion of the unexpected increase of the load of electricity consumption in circuit and load, overload current can occur; thermal relay meeting auto-action, protection electric capacity is not damaged.
In case after the thermal relay fault actions, the compensate function in this loop lost efficacy.Computer in the control room is found fault by detection, and monitor staff's very first time is found fault and in time notifies the attendant to solve fault, improves user's Electrical Safety, the useful life of also having improved capacitor.
As preferably, each A.C. contactor is electrically connected to busbar by fuse respectively, and busbar is electrically connected to 3 current transformers.
Therefore, the utlity model has following beneficial effect: the automatic protection functions that (1) is perfect, effectively improve electrical safety; (2) effectively improve the useful life of capacitor; (3) have timely fault alarm function, reduce the loss that fault is brought; (3) thermal diffusivity is good, equipment security of operation, stable.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is another kind of structural representation of the present utility model.
In figure: cabinet 1, capacitor 2, relay 3, A.C. contactor 4, current transformer 5, power compensating controller 6, power factor meter 7, ammeter 8, switching indicator light 9, manual/auto change over switch 10, Qianmen 11, louvre group 12, handle hole 13, LCDs 14, lightning arrester 15, fuse 16, busbar 17.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Embodiment as shown in Figure 1 and Figure 2 is a kind of low-voltage capacitance compensating cabinet, comprises cabinet 1, is provided with 10 capacitors 2,10 relays 3 and 10 each A.C. contactors 4 in described cabinet; Capacitor is electrically connected to successively with relay, A.C. contactor, 3 current transformers 5; Cabinet front surface top is provided with power compensating controller 6, power factor meter 7,3 ammeters 8 10 the switching indicator light 9 corresponding with each capacitor and manual/auto change over switch 10, and ammeter is electrically connected to current transformer; Power compensating controller and manual/auto change over switch are electrically connected to each A.C. contactor respectively, and the switching indicator light is electrically connected to corresponding A.C. contactor; Power factor meter is electrically connected to power compensating controller; Relay is electrically connected to computer in being located at the control room by telecommunication cable.
The capacitance of 10 capacitors is divided into 4 grades.Be respectively the 1st tunnel 5 kvar, the 2nd tunnel 5 kvar, the 3rd tunnel 20 kvar, the 4th tunnel 20 kvar, the 5th tunnel 30 kvar, the 6th tunnel 30 kvar, the 7th tunnel 35 kvar, the 8th tunnel 35 kvar, the 9th tunnel 45 kvar, the 10th tunnel 45 kvar.
Computer is electrically connected to alarm lamp and audio amplifier.Cabinet front surface middle part is provided with Qianmen 11, and the cabinet rear surface is provided with the back door, and the cabinet bottom is provided with the louvre group 12 of arrangement, and the Qianmen is provided with isolator operation hole 13.The Qianmen is provided with 10 LCDs 14 that are connected with 10 relays respectively.The inwall of the Over-The-Counter plate of cabinet and the inwall at back door are respectively equipped with blower fan.
Be provided with 3 lightning arresters 15 in cabinet.Relay is electronic thermal relay.Each A.C. contactor is electrically connected to busbar 17 by fuse 16 respectively, and busbar is electrically connected to 3 current transformers.
Capacitor switching process of the present utility model is as follows:
When manual/auto change over switch was beaten at automatic catch, power compensating controller carried out the capacitor switching of capacitor automatically according to power factor and voltage, capacitance automatically;
When manual/auto change over switch is beaten when manual, the attendant is according to the indication of ammeter and power factor meter, carry out manually order switching capacitance, successively switch is got to the first via, the second tunnel ..., the electric capacity of the capacitor on corresponding each road is advanced in circuit by switching;
When the abnormal conditions such as phase shortage, short circuit, electric leakage, overvoltage, overcurrent and capacitance deficiency occurring, computer can send warning message, thereby make the attendant in time confirm to process to fault, prevent that fault from further enlarging, reduce the economic loss that fault is brought.
Device security, stable work are guaranteed in the setting of blower fan.
Should be understood that the present embodiment only to be used for explanation the utility model and be not used in restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (9)
1. low-voltage capacitance compensating cabinet, it is characterized in that, comprise cabinet (1), be provided with several capacitors (2), several relays (3) and several A.C. contactors (4) in described cabinet, the individual number average of the number of capacitor and A.C. contactor equates with the number of relay; Capacitor is electrically connected to successively with relay, A.C. contactor, 3 current transformers (5); Cabinet front surface top is provided with power compensating controller (6), power factor meter (7), 3 ammeters (8), several switching indicator lights (9) and the manual/auto change over switch (10) corresponding with each capacitor, and ammeter is electrically connected to current transformer; Power compensating controller and manual/auto change over switch are electrically connected to each A.C. contactor respectively, and the switching indicator light is electrically connected to corresponding A.C. contactor; Power factor meter is electrically connected to power compensating controller; Described relay is electrically connected to computer in being located at the control room by telecommunication cable.
2. low-voltage capacitance compensating cabinet according to claim 1, is characterized in that, the capacitance of described each capacitor is divided into several grades.
3. low-voltage capacitance compensating cabinet according to claim 1, is characterized in that, described computer is electrically connected to alarm lamp and audio amplifier.
4. low-voltage capacitance compensating cabinet according to claim 1, is characterized in that, cabinet front surface middle part is provided with Qianmen (11), and the cabinet rear surface is provided with the back door, and the cabinet bottom is provided with the louvre group (12) of arrangement, and the Qianmen is provided with isolator operation hole (13).
5. low-voltage capacitance compensating cabinet according to claim 4, is characterized in that, the Qianmen is provided with several LCDs (14) that are connected with each relay respectively.
6. low-voltage capacitance compensating cabinet according to claim 4, is characterized in that, the inwall of the Over-The-Counter plate of cabinet and the inwall at back door are respectively equipped with blower fan.
7. according to claim 1 and 2 or 3 or 4 or 5 or 6 described low-voltage capacitance compensating cabinets, is characterized in that, is provided with several lightning arresters (15) in cabinet.
8. according to claim 1 and 2 or 3 or 4 or 5 or 6 described low-voltage capacitance compensating cabinets, is characterized in that, relay is electronic thermal relay.
9. according to claim 1 and 2 or 3 or 4 or 5 or 6 described low-voltage capacitance compensating cabinets, is characterized in that, each A.C. contactor is electrically connected to busbar (17) by fuse (16) respectively, and busbar is electrically connected to 3 current transformers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220616686 CN202997339U (en) | 2012-11-21 | 2012-11-21 | Low-voltage capacitor compensation cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220616686 CN202997339U (en) | 2012-11-21 | 2012-11-21 | Low-voltage capacitor compensation cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202997339U true CN202997339U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220616686 Expired - Fee Related CN202997339U (en) | 2012-11-21 | 2012-11-21 | Low-voltage capacitor compensation cabinet |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242075A (en) * | 2013-06-20 | 2014-12-24 | 国家电网公司 | Multifunctional compensation box |
| CN108321931A (en) * | 2018-01-31 | 2018-07-24 | 乐见协 | A kind of wireless communication control device for the capacitor compensation cabinet in power transmission network |
| CN108365538A (en) * | 2018-05-18 | 2018-08-03 | 株洲联诚集团控股股份有限公司 | A kind of electronic engineering machinery power distribution cabinet |
| CN110336297A (en) * | 2019-07-16 | 2019-10-15 | 武汉腾江电气制造有限公司 | Using the reactive compensation cabinet of high-power thyristor quick-switching |
| CN110380425A (en) * | 2019-07-09 | 2019-10-25 | 广东芯绿能科技有限公司 | Compensate battery saving arrangement |
| CN110729644A (en) * | 2019-10-30 | 2020-01-24 | 江苏图腾电气科技有限公司 | Reactive power compensation device on 10KV column |
| CN112821234A (en) * | 2021-02-28 | 2021-05-18 | 彭涛 | High-voltage capacitance compensation cabinet capable of automatically replacing spare parts and replacement method thereof |
-
2012
- 2012-11-21 CN CN 201220616686 patent/CN202997339U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242075A (en) * | 2013-06-20 | 2014-12-24 | 国家电网公司 | Multifunctional compensation box |
| CN108321931A (en) * | 2018-01-31 | 2018-07-24 | 乐见协 | A kind of wireless communication control device for the capacitor compensation cabinet in power transmission network |
| CN108365538A (en) * | 2018-05-18 | 2018-08-03 | 株洲联诚集团控股股份有限公司 | A kind of electronic engineering machinery power distribution cabinet |
| CN108365538B (en) * | 2018-05-18 | 2024-03-12 | 株洲联诚集团控股股份有限公司 | Power distribution cabinet for electric engineering machinery |
| CN110380425A (en) * | 2019-07-09 | 2019-10-25 | 广东芯绿能科技有限公司 | Compensate battery saving arrangement |
| CN110336297A (en) * | 2019-07-16 | 2019-10-15 | 武汉腾江电气制造有限公司 | Using the reactive compensation cabinet of high-power thyristor quick-switching |
| CN110729644A (en) * | 2019-10-30 | 2020-01-24 | 江苏图腾电气科技有限公司 | Reactive power compensation device on 10KV column |
| CN112821234A (en) * | 2021-02-28 | 2021-05-18 | 彭涛 | High-voltage capacitance compensation cabinet capable of automatically replacing spare parts and replacement method thereof |
| CN112821234B (en) * | 2021-02-28 | 2022-06-28 | 河南省新科电控设备有限公司 | High-voltage capacitance compensation cabinet capable of automatically replacing spare parts and replacement method thereof |
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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: 20130612 Termination date: 20201121 |