A new method to diagnose faults for high voltage circuit breakers is presented in the paper based on the introduction of wavelet packet and characteristic entropy.
在详细介绍小波包与特征熵的基础上，将二者结合提出了一种诊断高压断路器机械故障的新方法，并给出了切实可行的诊断步骤和分析。
The appearing and improving of intelligent type low-voltage circuit breakers enable short circuit breakdown protection for low-voltage power distribution network to be more reasonable.
低压智能型断路器的出现及完善，使低压配电网络的短路故障保护更趋合理。
This paper outdoor distribution equipment and layout of the bus architecture, power transformers, high-voltage circuit breakers, switches and arrester and isolation transformer and so on.
室外配电装置选型主要包括中型配电装置、高型配电装置、半高型配电装置等。
The technical performance and development of low voltage vacuum circuit breaker is discussed as compared with high voltage vacuum circuit breakers and ME series low voltage circuit breakers.
通过与高压真空断路器和ME系列低压断路器对比，论述了低压真空断路器的经济和技术性能以及发展前景。
Based on the introduction of wavelet packet and characteristic entropy, a new method to diagnosis fault for high voltage circuit breakers is presented, and its steps and analysis are also introduced.
在详细介绍小波包与特征熵的基础上，将二者结合提出了一种诊断高压断路器机械故障的新方法，并给出了切实可行的诊断步骤和分析。
Faster interruption of circuit breakers in the transmission voltage offers significant advantage to the transmission system.
断路器在输电电压下的快速开断对输电系统是明显有利的。
Circuit Breakers are supplied to protect the 115 VAC Inputs (2 each) as well as the Variable Amplitude Low Voltage Powers used by the Indicator Under Test (UUT) for Power, Reference or Lighting.
断路器被提供用于保护115VAC输入(各有2个)，以及保护被测指示器(UUT)所用于电源，基准或照明的可变振幅低压电源。
With the much higher operating voltages now in use the projected voltage transients or surges due to switching i. e. the opening and closing of circuit breakers, have become the major consideration.
目前随着更高工作电压的使用，由于断路器分闸、合闸操作所引起的电压暂态过程或过电压．已成为主要考虑的方面。
SMVS mainly engages in developing and manufacturing medium voltage vacuum interrupters (VI), vacuum circuit breakers (VCB) and gas insulated switchgear (GIS) as well as after sales services in China.
公司在中国主要从事陶瓷真空灭弧室、真空断路器、气体绝缘开关柜及相关产品的开发、制造、市场销售及技术售后服务。
The object of using DC fuse in tunnels and way of selection were expounded, including the selection of rated voltage and current, and the coordination of circuit breakers.
概述了在轨道交通系统中选用直流熔断器的目的及选用方法，包括额定电压、额定电流的选择，与断路器的配合工作。
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。
This paper mainly introduces test methods of synthetic test and direct test for capacitive current switching for ultra-high-voltage(UHV) circuit breakers.
主要介绍特高压断路器容性电流开合试验方法——合成试验法和直接试验法。
The opening time of movable contact has remarkable effect on the limiting current performance of low voltage molded case circuit breakers.
触头打开时间对于低压塑壳式断路器的限流性能有重要意义。
The opening time of movable contact has remarkable effect on the limiting current performance of low voltage molded case circuit breakers.
触头打开时间对于低压塑壳式断路器的限流性能有重要意义。
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