LWKK®无功补偿低压圆柱形充气自愈式环保电力电容器
LWKK®Reactive Power Compensation Low Voltage Cylindrical Inflatable Self - healingEnvironmental Power Capacitor
成熟的圆柱型低压自愈式环保LWKK®电力电容器,使用优质的圆柱形铝合金外壳,散热性能稳定、迅速,重量轻,体积小,内部填充惰性绝缘气体(混合氮气),介电材料为低损耗优质耐高温金属化薄膜,损耗低,寿命长。
Mature cylindrical low-voltage self-healingenvironmental LWKK® power capacitors adopts high-quality cylindricalaluminum alloy shell that features with stable and fast thermal performance,light weight and small size and is filled with inert insulating gas (Mixednitrogen); dielectric material adopts low-loss high-quality high-temperature metallizedfilm with low loss and long life.
技术参数:Technical parameters:
损耗角正切:DF≤0.001
Loss tangent:DF ≤0.001
容量偏差:-5%~+10%
Capacitydeviation: -5% to + 10%
极间耐压:2.15UnVAC,5秒
Withstandvoltage between poles: 2.15UnVAC, 5 seconds
极壳耐压:3600VAC,2秒
Pole shellwithstand voltage: 3600VAC, 2 seconds
放电:断电后3分钟内放电至75V以下
Discharge:discharged to 75V or less within 3 minutes after power failure
密封性:泄漏率<0.5SCCM(充气产品)
Sealing: Leakagerate <0.5SCCM (Inflatable product)
安全性:满足IEC60831-2标准的破坏试验要求
Safety: passedthe destruction test specified in IEC60831-2 standard
环境温度:-40/D
Ambient temperature: -40 / D
相对湿度:≤95%
Relative humidity: ≤ 95%
海拔:≤2000M
Altitude: ≤2000M
允许过电压:1.1Un
Allowedovervoltage: 1.1Un
允许过电流:1.3In
Allowedovercurrent: 1.3In
产品可靠性:在额定电压及标称温度类别下运行600000/5000小时,产品是小于6%/0.5%(1pmm元件小时)
Product reliability:600,000/5000 hours under rated voltage and nominal temperature range; less than6% / 0.5% (1pmm component hours)
安装要求:Installation requirements:
1、电容器的现场安装应依照并符合IEC61921,EN60831技术规范,电容器运行在通风、干燥、阴凉并远离热源的环境;
1. The on-site installation of capacity shall be in line with IEC61921, EN60831 technicalspecifications; the capacitor is running in a ventilated, dry, and cool environmentfar away from the heat source;
2、在没有强制冷却条件下,各电容器间距离应大于100mm,如果有认为外加强制冷却条件,各电容器间距离应大于20mm,以保证电容器工作温度始终处于安全范围。电容器的有效寿命与其工作温度紧密相关,正常工作温度为环境温度+10℃,在此基础上,每上升8℃,电容器寿命减少一半;
2. In theabsence of forced cooling conditions, the distance between the capacitorsshould be greater than 100mm;if there is forced external cooling condition, the distance between thecapacitors should be greater than 20mm,to ensure that the capacitor operating temperature is always in a safe range.The effective life of the capacitor is closely related to its operatingtemperature. The normal operating temperature is ambient temperature + 10 ℃.On this basis, the life of the capacitor is reduced by half every temperaturerise of 8 ℃.
3、如果多只电容器需要并联,必须对单个电容器接电缆后分别引出再并联。
3. If morethan one capacitors need to be connected in parallel, the cable shall beconnected to signal capacitor and then led out for parallel connection.
选型要素:Selection elements:
系统内电流总谐波畸变率5%≤THDi≤15%时,应选用更高额定电压等级的电力电容器,并考虑采用失谐滤波(抑制谐波放大)补偿方式,当谐波电流为5次及以上,采用6%~8%电抗率的电抗器,当谐波电流为3次及以上时,采用13%~14%电抗率的电抗器。
If the totalharmonic distortion rate of the current in the system is 5% ≤ THDi ≤15%, the power capacity with a higher rated voltage level is used, withdetuning filter (Suppression harmonic amplification) compensation considered;when the harmonic current is 5 times and above, the reactor with 6% to 8%reactance rate is used; when the harmonic current is 3 times and above, thereactor with 13% to 14% reactance rate is used.
串联电抗器后电容器电压:Capacitor voltage after series connection ofreactor:
U=Uo/(1-P)
U:串联电抗器后的电容器电压Capacitor voltage after series connection ofreactor
Uo:系统基波电压System fundamental voltage
P:电抗率Reactance ratio
型号说明:Model description
LWKK01-3-20-480
LWKK:德莱维诺®无功补偿系列产品DELAVEENO® reactive power compensation series products.
01:无功补偿低压圆柱形充气自愈式环保电力电容器
01: Reactive power compensation low-voltagecylindrical inflatable self-healing environmental power capacitor
3:三相(3表示三相,1表示单相)Three-phase (3 for three-phase, 1 forsingle-phase)
20:额定容量20Kvar。Ratedcapacity is 20Kvar.
480:产品额定电压480V。Product ratedvoltage 480V.
型号参数表Model and parameters table