快速鏈接
產(chǎn)品型號及含義
Product model and meaning
規(guī)格尺寸
Specification and size
高度H(mm)× 寬度W(mm)× 深度D(mm)
2200 600 800(1000)
2200 800 600(800、1000)
2200 1000 600(800、1000)
用途及性能
電力系統(tǒng)中的負(fù)載類型大部分屬于感性負(fù)載,加上用電企業(yè)普遍廣泛地使用電力電子設(shè)備,使電網(wǎng)功率因數(shù)較低。較低的功率因數(shù)降低了設(shè)備利用率,增加了供電投資,損害了電壓質(zhì)量,降低了設(shè)備使用壽命,大大增加了線路損耗。為了改善電網(wǎng)功率因數(shù)低下帶來了能源浪費和這些不利供電生產(chǎn)的因素,必須使電網(wǎng)功率因數(shù)得到有效的提高。顯然這些無功功率如果都要由發(fā)電機提供并遠(yuǎn)距離傳送是不合理的,通常是不可能的。合理的辦法就是需要無功功率的地方產(chǎn)生無功功率,即增加無功功率補償設(shè)備與裝置。
Application and performance
Most of the load types in the power system belong to inductive load, coupled with the widespread use of power electronic equipment by power enterprises, so that the power factor of the grid is low. Lower power factor reduces equipment utilization, increases power supply investment, damages voltage quality, reduces equipment service life, and greatly increases line losses. In order to improve the energy waste caused by low power factor of the grid and these unfavorable factors of power supply production, the power factor of the grid must be effectively improved. Obviously, it is unreasonable and usually impossible for these reactive powers to be provided by generators and transmitted over long distances. The reasonable way is to generate reactive power where reactive power is needed, that is, to increase reactive power compensation equipment and devices.
結(jié)構(gòu)特點
低壓電容補償柜由柜殼、母線、斷路器、隔離開關(guān)、熱繼電器、接觸器、避雷器、電容器、電抗器、一、二次導(dǎo)線、端子排、功率因數(shù)自動補償控制裝置、盤面儀表等組成。
Structural characteristics
The low voltage capacitance compensation cabinet is composed of cabinet shell, bus bar, circuit breaker, isolation switch, thermal relay, contactor, arrester, capacitor, reactor, primary and secondary wire, terminal block, power factor automatic compensation control device, disk meter, etc.
項 目 Item | 參 數(shù) Argument | |
額定參數(shù) Rated parameter | 額定電壓 Rated voltage | AC400V |
工作頻率 Operating frequency | 50HZ | |
投切響應(yīng)時間 Switching response time | 20-55 s | |
配諧波抑制電抗器 Harmonic suppression reactor | ||
抑制沖擊負(fù)荷引起電壓波動 Suppress voltage fluctuation caused by shock load | ||
小于電網(wǎng)電壓的5% Less than 5% of the grid voltage | ||
測量精度 Measurement accuracy | 電壓測量精度 Voltage measurement accuracy | <0.5%(0.8Un-1.2Un) |
電流測量精度 Current measurement accuracy | <0.5%(0.1In-1.2In) | |
功率測量精度 Power measurement accuracy | <1% | |
功率因數(shù)測量精度 Power factor measurement accuracy | <1% |