指出传统的接地保护原理的不足。
The shortage of traditional single-phase ground fault protection principle is pointed out.
按照中国标准做接地保护。
Grounding protection shall comply with the Chinese standards.
零序电流保护是一种重要的接地保护方法。
The zero-sequence current protection is an important means of power system ground protection.
论述了乒乓式转子一点接地保护的原理改进方案。
This paper presents the principle improvement of time sequence rotor one point earthing protection.
服务主密钥直接或间接地保护树中的所有其他密钥。
The service master key directly or indirectly secures all other keys in the tree.
指出了现有中小型发电机定子接地保护原理的不足。
The drawbacks of present stator ground fault protection principle for the small and medium sized generators are pointed out.
露天矿供电系统中采用两级选择性接地保护装置十分必要。
It is necessary to use two-stage selective earthing protective device in the power supply system of open-pits.
作者认为，消弧线圈谐振接地方式有着较高的接地保护灵敏度。
The author considers that the way of resonance ground of arc extinguish coils is of a higher sensitivity for ground protection.
转子一点接地保护采用变电桥原理，增强了反应过渡电阻的能力。
The rotors one point grounded protection adopts variable electricity bridge principle and can reflect transition resistor better.
通过对转子一点接地保护的灵敏度分析，证实了该设计的实用价值。
The sensitivity of one-point grounding protection for rotor is analyzed, which validates the practical value of the design.
对广东某电厂发电机的100%定子接地保护改造情况进行了讨论分析。
The reconstruction of100%stator grounding protection for the generator of a power plant is discussed.
叙述了一种新型的自动重合控制器，提出了一种小电流接地保护的新方法。
A new type of automatic reclose controller is described in this paper. A new method of low current ground protection is provided.
它应该被用来保护事业，保护客户，保护项目，这都能间接地保护和帮助人。
It should be used to protect the business, protect the customer, protect the projects which indirectly would protect and help people only.
并据此对传统发电机基波零序电压型定子接地保护的原理提出了改进意见。
Improvement of traditional protection of generator stator grounding based on 3U 0 is presented.
本文介绍了利用微机和数字滤波对发电机定子绕组进行100%接地保护的装置。
This paper introduces a device of 100% grounding fault protection for stator windings of generator by microcomputer and digital filter technique.
发电机定子接地保护及转子接地保护是发电机的继电保护系统中的一项重要内容。
Hence, the stator and rotor ground fault protection play an important role in the protection system of generator.
针对乒乓式励磁回路接地保护，结合开关自检方法提出了完整的一点接地保护方案；
Based on the ping-pong type field grounding protection, it presents one-point-to-ground protection scheme by integrating the self-checking method of switches.
介绍了漫湾电厂发电机3ω定子接地保护原理、调试方法及发电机定子三次谐波电压的测试。
The principle, testing of generator stator ground protection based on the third harmonics, measurement of the third harmonics on generator stator are introduced.
切换采样转子一点接地保护，通过两个静态开关一开一合建立两组方程来求解接地电阻与位置。
Commonly, by opening one switch and closing the other, two group equations are set up to measure rotor earth-fault resistance in the rotor earth-fault protection with switch sampling principle.
现场运行中定子接地保护误发信号时有发生，一些单位为使保护运行可靠，从而大幅度提高定值。
In site operation, stator grounding protection often gives false signal, therefore some units raise the setting value greatly for the dependability of protection.
提出了采用测量线路零序导纳进行接地保护的新原理，讨论了直线式导纳继电器的接地保护判据。
New principle for feeder grounding fault protection based on zero sequence admittance is presented in this paper. Criterions for the line ground relay with zero sequence admittance are also discussed.
本文通过对三种不同接地保护系统工作原理的分析，指出实现零线和接地线应始终分开的正确方法。
It is the key point to judge whether the earthing protective system of an elevator can he approved. Present paper analyses the working principles of three diff...
本文通过对三种不同接地保护系统工作原理的分析，指出实现零线和接地线应始终分开的正确方法。
It is the key point to judge whether the earthing protective system of an elevator can he approved. Present paper analyses the working principles of three different kinds of earthing...
本文通过对三种不同接地保护系统工作原理的分析，指出实现零线和接地线应始终分开的正确方法。
It is the key point to judge whether the earthing protective system of an elevator can he approved. Present paper analyses the working principles of three different...
介绍了AC 380V空调客车的接地保护方式以及不同接地保护形式并存的危害，并提出了改进措施。
The grounding protection mode of the AC 380 V air-conditioned passenger cars as well as the harm of different grounding protection ways existing simultaneously is described.
本文对如何提高微机接地保护或自动选线装置的动作成功率，进行了比较系统和详细分析，提出了具体建议。
The paper analyzed in detail that how to improve the motional success rate of grounding protection or automatic line selection device, and gave the concrete Suggestions.
弹簧机设备在通电过程中要做好可靠的接地保护措施，比如接地保护可有效防护下雨打雷时雷电击中电器元件；
Spring machine equipment to make reliable grounding protection measures in power in the process, such as grounding protection and effectively protecting rain thunder lightning electrical components;
研究目的：研制开发用于漏电检测的差动电流传感器，以适应国产化a型地铁车辆的牵引逆变器接地保护的要求。
Research purposes: By researching and developing differential current transducer used for leakage detecting, to adapt the ground protection of traction inverter in localization type a metro vehicle.
因此如何准确可靠地检测并隔离故障线路，寻找精度高的接地保护方法一直是小电流接地系统的一个重要研究课题。
The problem of how to detect and isolate fault feeder correctly and reliably, and look for a protection method with high precision is always an important research task.
因此如何准确可靠地检测并隔离故障线路，寻找精度高的接地保护方法一直是小电流接地系统的一个重要研究课题。
The problem of how to detect and isolate fault feeder correctly and reliably, and look for a protection method with high precision is always an important research task.
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