CN111540623A - Assembly method of modular capacitor bank - Google Patents
Assembly method of modular capacitor bank Download PDFInfo
- Publication number
- CN111540623A CN111540623A CN202010347614.2A CN202010347614A CN111540623A CN 111540623 A CN111540623 A CN 111540623A CN 202010347614 A CN202010347614 A CN 202010347614A CN 111540623 A CN111540623 A CN 111540623A
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- Prior art keywords
- capacitor bank
- capacitor
- modular
- assembling
- phase
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- 239000003990 capacitor Substances 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000009434 installation Methods 0.000 claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 3
- 239000003973 paint Substances 0.000 claims abstract description 3
- 238000010422 painting Methods 0.000 claims abstract description 3
- 238000009863 impact test Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 238000002788 crimping Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 210000001331 nose Anatomy 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses an assembling method of a modular capacitor bank, which comprises the following steps: firstly, lightly moving a capacitor bank to be stored in an environment below 35 ℃, if the capacitor bank is charged, discharging by using a 1k omega resistor, then making a frame and basic section steel according to the drawing requirements of the capacitor bank, then painting the basic section steel and the frame, drying the paint, and grounding to obtain a prepared mounting platform; according to the assembling method of the modular capacitor bank, the capacitor bank can be quickly installed under the safe condition in the assembling process through the steps of installation preparation, placement, wiring installation, testing and the like, so that the assembling efficiency of the capacitor bank is improved, meanwhile, the capacitor bank is preferentially considered in the preparation work in the installing process, the capacitor bank is effectively and relatively protected, the capacitor bank is not damaged, the use is convenient, and the using prospect is good.
Description
Technical Field
The invention belongs to the technical field of assembly, and particularly relates to an assembly method of a modular capacitor bank.
Background
A capacitor, which is a device for accommodating electric charges, is one of electronic components used in large numbers in electronic equipment; the capacitor is widely applied to the aspects of isolating direct current, alternating current, coupling, bypass, filtering, tuning loops, energy conversion, control and the like in a circuit, along with the change of electronic information technology and the continuous improvement of industrial automation degree, the frequency converter is also widely applied, and the capacitor is used as an important component of the frequency converter and correspondingly increases the demand;
the conventional capacitor bank has certain defects, the conventional capacitor is complex in process when being assembled and assembled, the assembling time is too long, the working strength of workers is high, meanwhile, the previous work in the assembling process is not careful, the capacitor is often damaged in the assembling process, and inconvenience is brought to use.
Disclosure of Invention
The invention mainly aims to provide an assembling method of a modular capacitor bank, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method of assembling a modular capacitor bank, the method comprising the steps of:
firstly, lightly moving a capacitor bank, storing the capacitor bank in an environment below 35 ℃, discharging by using a 1k omega resistor if the capacitor bank is charged, then making a frame and basic section steel according to the drawing requirements of the capacitor bank, then painting the basic section steel and the frame, drying the paint, and grounding to obtain a prepared installation platform;
secondly, placing, namely firstly determining the rated capacity, voltage and polarity of the capacitor bank before installation, lightly moving the stored capacitor bank again on an installation platform, wherein the capacitor bank needs to keep three-phase balance, the three-phase unbalanced current is 4% -5%, the distance between a positive lead and a negative lead in the capacitor bank needs to be matched with the position of a PC (personal computer) welding plate, and the shell of the capacitor bank needs to be reliably grounded; obtaining a well-placed capacitor bank;
step three, installing a connecting line; connecting the placed capacitor banks through flexible wires, connecting the capacitor banks in an angular mode, sequentially ending and connecting the tail ends of the initial ends, and crimping the wire ends by using wire adding noses to obtain the wired capacitor banks;
step four, testing, namely carrying out power transmission operation on the mounted capacitor bank, firstly mounting the capacitor bank, a circuit breaker matched with the capacitor bank, a control protection loop current and voltage measuring device and the like, then under the rated voltage, carrying out three times of switching-on and switching-off impact tests on the capacitor bank, disconnecting the circuit breaker and the isolating switch after the impact switching-on test, switching on the grounding switch of the capacitor bank, checking whether the fuse is fused or not after the interpolar full discharge point, if fusing is found, the reason should be found out, the capacitor is allowed to be put into operation formally after the reason is eliminated, and during impact test, the voltage change of the system and the current of each phase of the capacitor bank should be monitored to observe whether the three-phase current is balanced or not and whether the phenomena of high overvoltage, resonance and the like are caused to the system when the three-phase current is switched on and switched off or not without abnormal conditions, the assembling method of the capacitor bank modular capacitor bank can be completed, and the qualified assembled modular capacitor bank can be obtained.
Preferably, the horizontal distance between the frames when preparing in the step one is 0.2m-0.3m, the bottom of the lower layer capacitor is 0.3m-0.5m from the ground, the distance between the bus bar of the capacitor and the upper layer frame is 20-30cm, and the distance between each capacitor is 50mm-60 mm.
Preferably, when the frame is manufactured in the step one, the capacitors can be installed in a layered mode, no partition plate is added between layers, and the framework is made of non-combustible materials.
Preferably, the phase voltage output by adopting the delta connection method in the third step is 380V.
Preferably, each phase of current should be measured during the impact closing and receiving test in the fourth step. Before testing, the measuring current transformer is connected in the measuring loop in advance, and the current transformer is connected in each phase high-voltage loop in series.
Compared with the prior art, the invention has the following beneficial effects: according to the assembling method of the modular capacitor bank, the capacitor bank is installed, prepared, placed, wired and tested, and the like, so that the capacitor bank can be installed rapidly in the assembling process of the capacitor bank under the safe condition, the working efficiency of assembly is improved, the working strength of workers is reduced, meanwhile, the capacitor bank is preferentially considered when the capacitor bank is prepared to work in the installation process, relative protection is effectively carried out on the capacitor bank, the capacitor bank is prevented from being damaged, the process is simple, and operation is convenient.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Examples
During assembly, firstly, installation preparation is carried out, firstly, a capacitor bank is lightly moved and placed in an environment below 35 ℃ for storage, if the capacitor bank is charged, 1k omega of resistor is needed for discharging, then, a frame and basic section steel are manufactured according to the drawing requirements of the capacitor bank, then, the basic section steel and the frame are painted, the horizontal distance between the frames is 0.2m, the distance between the bottom of a lower layer of capacitor and the ground is 0.3m, the distance between a bus of the capacitor and an upper layer of frame is 25cm, the distance between each capacitor is 50mm, the capacitors can be installed in a layered mode, a partition plate is not needed to be additionally arranged between the layers, the frames are made of non-combustible materials, and after the capacitor bank is dried, grounding is well done, and a prepared installation platform is obtained; then placing the capacitor bank, firstly determining the rated capacity, voltage and polarity of the capacitor bank before installation, lightly moving the stored capacitor bank again on the installation platform, wherein the capacitor bank should keep three-phase balance, the three-phase unbalanced current is 4% -5%, the distance between a positive lead and a negative lead in the capacitor bank should be matched with the position of a PC welding plate, and the shell of the capacitor bank must be reliably grounded; obtaining a well-placed capacitor bank; secondly, installing a connecting line; connecting the placed capacitor banks through flexible wires, and then adopting angular connection, wherein the phase voltage output by a triangular connection method is 380V, the tail ends of the initial ends are sequentially connected in an end-to-end manner, and the wire ends are connected by wire adding noses in a crimping manner to obtain the wired capacitor banks; and finally, performing a test, namely performing power transmission operation on the mounted capacitor bank, mounting the capacitor bank, a circuit breaker matched with the capacitor bank, a control protection loop current and voltage measuring device and the like, performing three brake closing and opening impact tests on the capacitor bank under a rated voltage, and measuring each phase current. Before the test, a measuring current transformer is connected in a measuring loop in advance, the current transformer is connected in each phase high-voltage loop in series, after an impact switch-on test, a breaker and a disconnecting switch are disconnected, a grounding switch of a capacitor bank is switched on, after an interelectrode full discharge point, whether the fuse is fused or not is checked, if the fuse is found, the reason is found, and the capacitor is allowed to be put into operation formally after the fuse is eliminated.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A method of assembling a modular capacitor bank, comprising the steps of:
firstly, lightly moving a capacitor bank, storing the capacitor bank in an environment below 35 ℃, discharging by using a 1k omega resistor if the capacitor bank is charged, then making a frame and basic section steel according to the drawing requirements of the capacitor bank, then painting the basic section steel and the frame, drying the paint, and grounding to obtain a prepared installation platform;
secondly, placing, namely firstly determining the rated capacity, voltage and polarity of the capacitor bank before installation, lightly moving the stored capacitor bank again on an installation platform, wherein the capacitor bank needs to keep three-phase balance, the three-phase unbalanced current is 4% -5%, the distance between a positive lead and a negative lead in the capacitor bank needs to be matched with the position of a PC (personal computer) welding plate, and the shell of the capacitor bank needs to be reliably grounded; obtaining a well-placed capacitor bank;
step three, installing a connecting line; connecting the placed capacitor banks through flexible wires, connecting the capacitor banks in an angular mode, sequentially ending and connecting the tail ends of the initial ends, and crimping the wire ends by using wire adding noses to obtain the wired capacitor banks;
step four, testing, namely carrying out power transmission operation on the mounted capacitor bank, firstly mounting the capacitor bank, a circuit breaker matched with the capacitor bank, a control protection loop current and voltage measuring device and the like, then under the rated voltage, carrying out three times of switching-on and switching-off impact tests on the capacitor bank, disconnecting the circuit breaker and the isolating switch after the impact switching-on test, switching on the grounding switch of the capacitor bank, checking whether the fuse is fused or not after the interpolar full discharge point, if fusing is found, the reason should be found out, the capacitor is allowed to be put into operation formally after the reason is eliminated, and during impact test, the voltage change of the system and the current of each phase of the capacitor bank should be monitored to observe whether the three-phase current is balanced or not and whether the phenomena of high overvoltage, resonance and the like are caused to the system when the three-phase current is switched on and switched off or not without abnormal conditions, the assembling method of the capacitor bank modular capacitor bank can be completed, and the qualified assembled modular capacitor bank can be obtained.
2. A method of assembling a modular capacitor bank as claimed in claim 1, wherein: in the preparation in the first step, the horizontal distance between the frameworks is 0.2-0.3 m, the distance from the bottom of the lower-layer capacitor to the ground is 0.3-0.5 m, the distance from the bus of the capacitor to the upper-layer framework is 20-30cm, and the distance between every two capacitors is 50-60 mm.
3. A method of assembling a modular capacitor bank as claimed in claim 1, wherein: when the frame is manufactured in the first step, the capacitors can be installed in a layered mode, no partition plate needs to be additionally arranged between layers, and the frame is made of non-combustible materials.
4. A method of assembling a modular capacitor bank as claimed in claim 1, wherein: in the third step, the phase voltage output by adopting a delta connection method is 380V.
5. A method of assembling a modular capacitor bank as claimed in claim 1, wherein: in the impact closing and receiving test in the fourth step, each phase of current is measured. Before testing, the measuring current transformer is connected in the measuring loop in advance, and the current transformer is connected in each phase high-voltage loop in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010347614.2A CN111540623A (en) | 2020-04-28 | 2020-04-28 | Assembly method of modular capacitor bank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010347614.2A CN111540623A (en) | 2020-04-28 | 2020-04-28 | Assembly method of modular capacitor bank |
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| Publication Number | Publication Date |
|---|---|
| CN111540623A true CN111540623A (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010347614.2A Pending CN111540623A (en) | 2020-04-28 | 2020-04-28 | Assembly method of modular capacitor bank |
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| CN (1) | CN111540623A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655518A (en) * | 2009-08-19 | 2010-02-24 | 东北电力科学研究院有限公司 | High voltage capacitive-type equipment leakage current-resistance sampling sensor and installation method thereof |
| CN102360948A (en) * | 2011-09-22 | 2012-02-22 | 上海思源电力电容器有限公司 | Assembly method of capacitor bank |
| CN102598172A (en) * | 2010-09-30 | 2012-07-18 | 欧姆龙株式会社 | Surface mount socket for electrolytic capacitor and surface mount method for electrolytic capacitor |
| KR101490054B1 (en) * | 2013-10-17 | 2015-02-04 | 엘에스엠트론 주식회사 | Ultracapacitor Module Using PCB assembly And The Manufacturing Method of it |
| CN206225209U (en) * | 2016-11-17 | 2017-06-06 | 华源中瑞科技（北京）有限公司 | A kind of combined DC support capacitor of three-phase imbalance device |
| CN108511192A (en) * | 2018-01-31 | 2018-09-07 | 国网电力科学研究院武汉南瑞有限责任公司 | Using all insulation frame integrated capacitor and installation method of insulation crust capacitor unit |
-
2020
- 2020-04-28 CN CN202010347614.2A patent/CN111540623A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655518A (en) * | 2009-08-19 | 2010-02-24 | 东北电力科学研究院有限公司 | High voltage capacitive-type equipment leakage current-resistance sampling sensor and installation method thereof |
| CN102598172A (en) * | 2010-09-30 | 2012-07-18 | 欧姆龙株式会社 | Surface mount socket for electrolytic capacitor and surface mount method for electrolytic capacitor |
| CN102360948A (en) * | 2011-09-22 | 2012-02-22 | 上海思源电力电容器有限公司 | Assembly method of capacitor bank |
| KR101490054B1 (en) * | 2013-10-17 | 2015-02-04 | 엘에스엠트론 주식회사 | Ultracapacitor Module Using PCB assembly And The Manufacturing Method of it |
| CN206225209U (en) * | 2016-11-17 | 2017-06-06 | 华源中瑞科技（北京）有限公司 | A kind of combined DC support capacitor of three-phase imbalance device |
| CN108511192A (en) * | 2018-01-31 | 2018-09-07 | 国网电力科学研究院武汉南瑞有限责任公司 | Using all insulation frame integrated capacitor and installation method of insulation crust capacitor unit |
Non-Patent Citations (1)
| Title |
|---|
| 杨光臣: "《建筑电气工程施工 第4版》", 31 July 2016, 重庆大学出版社 * |
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Application publication date: 20200814 |
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