paper covers temporary overvoltages, second arc current, switching overvoltage, major parameters of moa and insulation level of uhv ac apparatus.
主要内容包括:工频暂时过电压,潜供电流,操作过电压,金属氧化物避雷器主要参数,特高压电气设备的绝缘水平等。
it can be avoided that the insulation level of electrical equipment is weakening gradually due to accumulation effect of overvoltages. these have a certain engineering significance.
由此提出对该变电所绝缘配合的建议,从而可以避免过电压的累积效应而逐渐削弱电气设备绝缘水平的发生,具有一定的工程意义。
the insulation level between poles and enclosure is important for high voltage shunt capacitors to increase the operation reliability.
高压并联电容器极对壳绝缘水平是保证其在电网安全运行的重要参数。
making smooth lines, cables remain sealed, and to ensure that the insulation level of cable joints to make it safe and reliable operation.
使得线路畅通,电缆保持密封,并保证电缆接头处的绝缘等级,使其安全可靠地运行。
to intensify basic external insulation level of power system-fundamental way for prevention of large-scale pollution flashover.
防止大面积污闪的根本出路是提高电网的基本外绝缘水平。
operation practice shows that the clause explanation concerning cable insulation level in「cable design specification in power project」should be revised urgently.
运行实践表明,《电力工程电缆设计规范》中的有关电缆绝缘水平的条文说明亟待修正。
this paper deals with the selection lightning impulse insulation level of electrical apparatus in 500kv sub-stations by using the statistical method.
本文主要用统计方法对500千伏变电所电气设备,在雷击线路沿导线侵入雷电波情况下,雷电沖击绝缘水平的选择作了分析和探讨。
the basic measure to protect from large area pollutant flashover is to increase overall external insulation level for transmission and substation equipment.
防治电网大面积污闪的根本出路是提高输变电设备外绝缘的总体水平。
it is indicated that correct selection of the rated voltage and insulation level is of great importance to safe, fault-free operation of the high-voltage shunt capacitor in the power network.
并指出正确选择额定电压和绝缘水平对高压并联电容器在电网中安全、无故障运行的重要性。
this paper, based on above analyses and researches, suggests the insulation level of the main equipment on uhv system (including t…
在此基础上,对特高压系统的主要变电设备(包括变压器、断路器、隔离开关、电抗器和moa)和输电线路的绝缘水平提出了建议。
sudden changes of the weather are decreased in their effect by the high insulation level and thus most of them can be digested within the comfort range.
高质量的保温把天气突变的影响降到了最低,这样就使温度变化保持在舒适的范围内。
test results show that the insulation level and error performance of the prototype are to meet the design requirements;
试验结果表明,样机的绝缘水平和误差性能均满足设计要求;
the insulation level influences reliability of dc loop in the dc system directly.
直流系统的绝缘性能直接影响直流回路的可靠性。
these factors including distribution of circuit breakers closing angle, rated voltage of moa and the insulation level of transmission line are considered.
同时还研究了断路器合闸相位角分布规律、moa的额定电压、线路绝缘水平等因素的影响。