设有过电流保护装置，保护可靠。
Over-current protection device, ensuring reliable protection.
介绍了一种新型塑料外壳式断路器的过电流保护系统。
Introduction was made to a new kind of molded case circuit breaker over-current protection system.
主开关能够提供过电流保护，是配电盘或设备的电源断开点。
Main breakers provide overcurrent protection and a single disconnect point for all power in a switchboard or device.
保证过电流保护的同时，还提高了开关频率，减小了输出谐波。
The switch frequency is increased and the output harmonic is decreased while the overcurrent protection is ensured.
另外还需要进行变压器零序方向过电流保护动作方向正确性的检查。
The validity check of zero-sequence operating direction for transformer directional over-current protection is also essential.
文中给出了背靠背试验、等价过电流保护试验的原理以及试验结果。
The parameters of the links, the principle and the results of equivalent tests are given in this paper.
脉冲宽度调制控制器，包括一个禁用单位，水平传感器和过电流保护。
A pulse width modulation controller comprises a disabling unit, a level sensor and an over current protector.
过电流保护电路，负载驱动装置，电机驱动装置，电气设备和电源装置。
Overcurrent protective circuit, load driving unit, motor driving unit, electrical equipment, and power unit.
过电流保护装置在电力系统是必不可少的，限制了威胁人类生命和财产损失。
Overcurrent protection devices are essential in electrical systems to limit threats to human life and property damage.
本发明披露了一种在其内可以避免过电流保护电路出现非正常运行的调压器。
A voltage regulator is provided in which an abnormal operation of an overcurrent protection circuit is prevented.
保护功能有三段过电流保护、反时限过流保护、三相一次检无压自动重合闸等。
The protection functions include three-section over-current protection, inverse-time over-current protection, three-phase one-shot no-voltage auto-recloser and so on.
程控电话交换机过电流保护元件要求用低电阻率高性能的PTC陶瓷材料来制备。
PTC element as over-current limiter for program-controlled telephone exchanger is one of the important application of PTC ceramic material.
IGBT的过电流保护一般在自身的驱动电路中实现，而主电路相对简单、体积小。
The overcurrent protection for IGBT is generally implemented in its drive circuit so that the main circuit is simpler and the volume is smaller.
程控电话交换机过电流保护元件要求用低电阻率高性能的PT C陶瓷材料来制备。
High performance PTC ceramic material with low resistivity is desired to prepare an over-current limiter for program-controlled telephone exchanger.
该继电器采用集成电路构成，集线路的速断保护、过电流保护及三相一次重合闸于一体。
The relay is made up of integrated circuits. The line instantaneous overcurrent protection and overcurrent protection are combined with the once 3-phase reclosure application to form a whole body.
IGCT或者GTO的过电流保护一般在主电路中实现，使主电路复杂、成本高、体积大。
For IGCT or GTO, the overcurrent protection is generally implemented in the main circuit, which brings complex main circuit, high cost and great volume.
这三个设备都耦合多功能为实现待机功能节点，输入电平的应用，以及过电流保护，分别为。
These three devices are all coupled to a multi-function node for accomplishing a disable function, input level sensing, and over-current protection, respectively.
介绍了高分子基PTC过电流保护元件的动作原理、安装方式、性能特点，影响因素及其应用。
The trip principle, mounting methods, element characteristics and influencing factors, and applications of PTC overcurrent protectors based on polymer were introduced in this paper.
主要介绍对供电系统中过电流保护装置灵敏度的要求，以及提高过电流保护装置灵敏度的措施。
The article introduces demands for sensitivity of the over-current protection in power network and also deals with the measurements to improve the sensitivity.
无熔丝开关，压缩机超压，过热，过电流保护超温保护，风机过载保护，保险丝，干烧保护器，缺水保护。
No fuse breaker, over pressure, over heat and over current protectors for compressor, over temp. protector, over load protectorof fan, dry heat pr techto.
微波炉过电流保护电路涉及一种微波炉加热器的过电流保护电路，由多个加热器和继电器以及保险丝组成；
The present invention relates to an overcurrent protection circuit of microwave over heater. It is formed from several heaters, relays and safety fuse.
该附录经过3次修订，现刊出的为第三版中的附录，是最新标准。其内容着重带电子过电流保护断路器的附加试验要求。
The appendix published is the one to the 3rd edition, it is the newest standard with its contents stressed on the additional tests for circuit breakers with electronic over-current protection.
介绍了3种新型保护器件的原理与应用，包括有源电磁干扰(emi)滤波器、集成过电压保护器件和集成过电流保护器件。
The principle and application of three new protection ICs including active EMI filter, over voltage protection IC and over current protection IC are introduced.
从理论上分析配电线路出口故障时，电流速断和定时过电流保护拒动的原因，从而阐明电流互感器的响应特性对电流保护有很大的影响，最后提出相应的对策。
The causes of refusing action of over current protection when the short circuit arises at the beginning of distribution line have been theoretically analysed in this paper.
本文采用UC 3846作为PWM发生器，桥式驱动的脉冲变压器既保证信号的传输，又保证足够功率驱动全桥逆变主电路。对于经常发生短路刷镀刷镀工艺，快速过电流保护非常必要。
UC3846 is used for PWM, pulse transformer driven by bridge can transfer signal and power for IGBT in main circuit, quick protection is necessary for short circuit often happen during brush plate.
过电流继电器是继电保护装置的一种，当负载电流超过整定值时，继电器动作。
An "Overcurrent relay" is a type of protective relay which operates when the load current exceeds a preset value.
电磁式过电流继电器调整困难、度低、靠性差、能有效的对机电设备进行保护。
Electromagnetic overcurrent relays which are difficult to be adjusted and have low accuracy and reliability can not effectively protect electromechanical equipments.
因此必须采取适当的保护措施以避免因过电压及其所产生的过电流对传输线路、通信设备和人员造成的危害。
They must take the appropriate protective measures in order to avoid over-voltage and over-current generated by the transmission lines of communications equipment and personnel hazards.
与继电器配合，可对系统和设备进行过电流、过负荷和接地等保护。
Cooperating with relay, it can protect system and equipment from excess current, overload, and earthing etc.
保护功能：过电流，缺相，堵转。
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