It measures excess phase of voltage current by using digital circuit, Based on the reactive compensation theorem, The software hardware of the controller is deigned. 该控制器采用数字检测电路来获取电网电压与电流的相位差,从无功补偿的原理出发,设计控制器的软硬件。
That excess voltage is an energy loss, meaning it takes far more energy to make the CO than it can store in its chemical bonds. 施加高电压是一种能量损失,这意味着制造一氧化碳所需的能量比其化学键中储存的能量要高得多。
The effects of environment temperature, excess air ratio, storage battery voltage on start speed and emissions are studied. 研究了环境温度,过量空气系数,蓄电池电压,点火提前角对单循环冷起动时,起动转速和排放的影响。
Power device module which provides power of all modules and drives control equipments to accomplish intention of main control module and can provide zero crossing protection circuit, excess voltage and under voltage protection circuit and excess current protection circuit; 电源驱动模块:主要提供各个模块的电源,驱动被控设备,实现主控模块的意图,并能实现继电器的过零保护,过流、过压、欠压保护;
The low-voltage relay and the excess voltage relay are integrated into one relay, which can display the real time of the voltage of the circuit and the limit of voltage can be modified. 该继电器的设计思想是将过压继电器和欠压继电器集成到一起,并且实时显示所测电压值,能修改电压的上、下限。
Analysis on Thyristor Protection to Excess Voltage and Current Shocks 过压过流对晶闸管冲击的保护方法探析
Excess voltage protection of the distribution system of electronic devices 电子设备配电系统的过电压保护
The response of RL first-order circuity switching on simple sinusoidal alternating voltage source is discussed. The conditions of RL circuitry directly accessing stationary response and the reason why the excess current and excess voltage generate are also analysied. 分析了一阶RL电路在正弦交流电压源激励下,电路直接进入稳态响应的条件和产生过流、过压的原因。
Simulation proves that this control method can start and cut off protective circuit in time, and restrain excess current at rotor side of double-fed generator. Thus low voltage ride through ability of double-fed wind turbine system will be improved. 仿真验证了该模型能够及时的投入和切除保护电路,抑制双馈发电机转子侧的过电流,提高双馈风力发电系统的低电压穿越能力。
With the development of rural economy, this capacity increasing mode resulting in a phenomenon of excess power supply radius for prescribed length, much power loss and at the terminal of distribution feeder the voltage quality serious unqualified. 随着农村经济的发展,这种增容扩展模式造成了农村配电网供电半径超限、线路损耗大、线路末端电压质量严重不合格的现状。