Results 61 to 70 of about 120,977 (230)
Advances in neural circuits of innate fear defense behavior. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue Ban, 2023 Zhao J, Song Q, Wu Y, Yang L.
europepmc +1 more source
Constant Power-factor Circuits Using Nonlinear Resistances [PDF]
, 1963 When a reactor with iron core and a compensating condenser is series connected, I obtained more constant power-factor characteristics by using nonlinear resistances in parallel with the condenser, than by using linear resisiances in series.先に本題目について ...
高森 三郎
core +1 more source
Experimental Verification of a New Evaluation Circuit for DC-link Capacitors Used in a Three-Phase Inverter [PDF]
, 2015 DC-link capacitors in power electronic converters are a major constraint on improvement of power density as well as reliability. Evaluation of the dc-link capacitors in terms of power loss, ageing, and failure rate will play an important role in design ...
大村 一郎 +2 more
core +4 more sources
The Interface Circuits of a Small Magnetic Drum [PDF]
, 1976 This is a report on the experimental interface circuits made for increasing the memory capacity of the mini-computer. By using the circuits we could decrease the operating time of the computer for completing one program.ミニコンピューターの記憶容量を増大するために ...
中田 剛 +3 more
core +1 more source
On the Relation Between Iron Losses and Form Factor [PDF]
, 1969 In this paper, the relation between iron losses and form factor is presented. For this purpose, the AC power souree of variabl form factor and variable frequency was made for trial, using an inverter, a filter and a phase-shifter. The author has measured
岡田 粂ニ
core +1 more source
Gaoya dianqi, 2012 针对220 kV母联断路器机构箱操作闭锁回路老化的情况,结合现在微机保护操作箱性能比较可靠,充分利用了现在微机保护装置的可靠性能,将线路断路器保护闭锁回路由原来的单只继电器组合闭锁,改为现在的利用操作箱回路闭锁,提高了回路的可靠性,保证了微机保护的正常运行。
段利伟 +3 more
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Gaoya dianqi, 2021 带并联电抗器的同塔多回输电线路,在线路故障引起的非全相运行期间,由于并联电抗器和线路电容间可能构成串联回路,若参数匹配将发生串联谐振引起高幅值长时间的谐振过电压,需对带并联电抗器的同塔多回输电线路谐振问题进行研究分析。建立了同塔多回输电线路耦合模型,变换得到各故障状态非全相运行期间的等效阻抗模型,并推导出线路各非全相运行状态下的谐振频率计算表达式,通过频率扫描验证理论分析的正确性。为更直观的反应并联电抗器与同塔多回输电线路谐振的关系,作出并联电抗器补偿度和中性点小电抗的谐振关系曲线 ...
汪沨 +5 more
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Dianci bileiqi, 2017 雷电是光伏发电系统的主要灾害威胁之一,光伏阵列的防雷保护研究非常迫切而重要。建立雷电回击通道传输模型,计算了光伏阵列发生临近雷击时周围电磁场分布。利用电磁感应定律计算光伏阵列回路感应过电压。最后通过建立光伏阵列回路等效电路模型,求解回路承受的短路过电流。计算表明:发生雷击时,电场和磁场强度随雷击点距离的增加而减小。光伏阵列距离雷击点越近,感应过电压幅值越大。光伏阵列回路承受的短路过电流可超过一百安培,极易损坏回路设备和光伏电池板。需要在回路中安装浪涌保护装置,合理泄放雷电能量。
董毅 +4 more
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