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电缆交换耐压实验装配

更新:2018-01-07 18:09:01      点击:
  • 品牌:   越超电力
  • 型号:   YCXZ
产物先容

YCXZ系(xi)列电(dian)(dian)(dian)缆交换(huan)(huan)耐压实验(yan)装配用(yong)于交联橡塑电(dian)(dian)(dian)力电(dian)(dian)(dian)缆、电(dian)(dian)(dian)力变压器(qi)(qi)、GIS、互感器(qi)(qi)、绝缘子、发机电(dian)(dian)(dian)、开关(guan)等(deng)被试品绝缘蒙受各(ge)类过电(dian)(dian)(dian)压才能及容性负(fu)载的交换(huan)(huan)耐压实验(yan)。

10kV/300mm2电(dian)缆(lan)长度1km的交换耐压实验,电(dian)容量≤0.3755uF,实验频次30-300Hz,实验电(dian)压(ya)22kV,实验时候5min。

附:

电(dian)缆实验电(dian)流的计较方式

实验(yan)电流 I=2πfCU试

f:实验(yan)频(pin)次,普通(tong)取35Hz,频(pin)次越高实验(yan)电流会越大(da);(工频(pin)取50HZ)

c:电容量,按照表格(ge)提取,普(pu)通为UF,需换算成F;

U试:实(shi)验电压;

π :3.14

示例:对10kV,300mm2 ,1km电(dian)(dian)缆,电(dian)(dian)容量≤0.37μF,实验(yan)电(dian)(dian)压22kV:

实验电流(liu) I=2πfCU试(shi) =2π×35Hz×0.37uF×10-6×22×1000=1.789A


 


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