1.在输出电线路时中利用高压电容器可以组成串补贴,提高输电线路的输送能力.
2.在大型变电路中利用高压电容器可以组成SNC,提高电能质量.
3.在配电线路未端利用高压陶瓷电容器可以提高线路未端利用高压电容器可以提高线路未端的功率因数,保障线路未端的电压质量.
4.在变电站的中低压各段母线,均会装有高压电容器以补偿消消耗无功提高线侧的功率因数.
5.在有非线性负荷的负荷终端站,也会装高高压电容器用为滤波之用.
6.高压陶瓷电容器一般选用材质有多种如:N4700,X7R,Y5T,Y5U.每种材质不同对电容器的质量都会有一定影响!
(一)高压陶瓷电容器材料特性:
序号 | 材 质 | 使用温度 (℃) | 绝缘电阻 (≥MΩ) | 介质损耗 ≤ | 变化率 |
1 | UJ | -25~+85 | 100000 | 6×10-4 | +/-520PPM |
2 | SL | -25~+85 | 100000 | 6×10 | +/-650PPM |
3 | X5F(B) | -40~+125 | 100000 | 1% | +/-5% |
4 | X7R(B) | -40~+125 | 100000 | 1.5% | +/-10% |
5 | N4700 (DL) | -25~+85 | 200000 | 0.2% | +/-28% |
-40~+105 | 200000 | 0.2% | +/-33% |
6 | Y5T(D) | -25~+85 | 100000 | 1% | +22/-33% |
7 | Y5U(E) | -25~+85 | 10000 | 2% | +22-56% |
8 | Y5V(F) | -25~+85 | 10000 | 2% | +22-80% |
(二)耐压 10KV系列 耐压≥1.5倍
序 号 | 规 格 | 材 料 | Max (mm) |
D | T | F | d |
1 | CT81-10KV-X09-F9.5-101K | X5F | 09 | 6 | 9.5 | 0.65 |
2 | CT81-10KV-DL06-F9.5-101K | N4700 | 06 | 6 | 9.5 | 0.65 |
3 | CT81-10KV-DL08-F9.5-151K | N4700 | 08 | 6 | 9.5 | 0.65 |
4 | CT81-10KV-D08-F9.5-221K | Y5T | 08 | 6.5 | 9.5 | 0.65 |
5 | CT81-10KV-DL10-F9.5-331K | N4700 | 10 | 6.5 | 9.5 | 0.65 |
6 | CT81-10KV-DL12-F9.5-471K | N4700 | 12 | 6.5 | 9.5 | 0.8 |
7 | CT81-10KV-D12-F9.5-102K | Y5T | 12 | 6.5 | 9.5 | 0.8 |
8 | CT81-10KV-DL16-F12.5-102K | N4700 | 16 | 6.5 | 12.5 | 0.8 |
9 | CT81-10KV-D17-F12.5-222M | Y5T | 17 | 6.5 | 12.5 | 0.8 |
10 | CT81-10KV-E14-F12.5-222M | Y5U | 14 | 7 | 12.5 | 0.8 |
11 | CT81-10KV-F11-F9.5-222M | Y5V | 11 | 7 | 9.5 | 0.8 |
12 | CT81-10KV-D21-F12.5-332M | Y5T | 21 | 7 | 12.5 | 0.8 |
13 | CT81-10KV-E16-F12.5-332M | Y5U | 16 | 6.5 | 12.5 |
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