Electrical earthing is an important measure to ensure the normal operation and equipment safety.
电气接地是保障电气系统正常运行和设备安全的重要措施。
The proper earthing of the shielded layer of cable in HV substation plays an important part in reducing electromagnetic interference to the microcomputer-based secondary facilities.
高压变电所内屏蔽电缆屏蔽层的正确接地,对降低外部电磁场对微机型二次设备的干扰水平,起着重要作用。
An earthing device of overtension protection will be introduced.
并详细介绍了作者设计的一种过电压保护接地装置。
Nevertheless, one of the main reasons consists in earthing problems.
产生干扰的原因很多,但接地问题是主要的原因之一。
The methods are proposed for selection of power, protection and earthing.
提出电源、防护及接地选用的方法。
Passive measure include: filter, Fielding, earthing, bypass, decoupling etc.
被动的方法具体有:滤波、屏蔽、接地、去耦、旁路等。
The importance of earthing electric equipment was analyzed for system safety.
论述了电气装置接地对于系统安全的重要性。
NOTE This provision includes a protective earthing conductor in the supply cord.
注:此防护措施包括电源线中的保护性导线。
For the reliable running of DCS, earthing devices should be considered in design.
为了DCS系统的可靠运行,设计时必须考虑其接地问题。
It also analyses corrosion problem of earthing material and put forward its measures.
分析了接地材料的防腐问题,提出了相应的处理方法。
The paper discusses the low-voltage distribution system earthing and the neutral protection.
现对低压配电系统接地和接零保护进行简要论述。
This paper presents the principle improvement of time sequence rotor one point earthing protection.
论述了乒乓式转子一点接地保护的原理改进方案。
In this paper, the imperfect quality in construction of the electricity earthing devices is analyzed.
分析了影响电气接地装置工程质量的主要原因。
Continuous earthing or other suitable means should be provided for the prevention of electrical shock.
直接接地或通过其他方式等效接地以防止遭受电击。
In the high resistivity area, it is very difficult to reduce the earthing resistance to the given value.
在高电阻率地域,将接地电阻降到设计值非常困难。
The relations between protective earthing, touching voltage and walk voltage are discussed in the article.
该文对保护接地、接触电压、跨步电压间的关系进行探讨。
Cooperating with relay, it can protect system and equipment from excess current, overload, and earthing etc.
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。
It is necessary to use two-stage selective earthing protective device in the power supply system of open-pits.
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。
The 2nd earthing ac voltage of arc welding machine does not exceed 200v, and DC peak value does not exceed 400v.
电焊机电缆的二次对地电压交流不超过200v,直流峰值不超过400v。
Keeping good conditions of earthing devices is an important link to guarantee the safety of persons and equipments.
保持接地装置的良好状态是确保人身及设备安全的重要环节。
This device is practical in the realisation of unattended power substation and earthing system with little current.
该装置对于小电流接地系统及实现变电站无人值班具有广泛的应用价值。
Reasonable laying space and effective screen earthing, which can reduce the static electricity coupling interference.
合理的敷设间距与有效的屏蔽接地,可以减少静电耦合干扰。
Equipotential connection may not connect with the manual or natural earthing to become earth-free equipotential connection.
等电位联结也可不与人工或自然接地体连接的,成为不接地的等电位联结。
The utility model relates to a switch, in particular to an electric earthing switch of a power switch cabinet earthing tool.
本实用新型涉及一种开关,特别涉及一种电力开关柜接地刀的电动接地开关。
The only way of overcoming the problem is by opting for dedicated earthing to the machine and by regular maintenance of earth pit.
避免这个问题的唯一方法是选择机床专用的接地线并定期维护接地点。
Zero-sequence transient energy is calculated for low earthing resistance and single-phase transient energy for high earthing resistance.
并且根据接地电阻的大小选择不同的暂态能量算式,故可判断金属性接地故障和高接地电阻接地故障。
This paper puts forward magnetic balanced inspection method, and designs DC earthing inspection system based on magnetic balanced method.
本文提出了磁平衡监测方法,设计了基于磁平衡法的直流接地监测系统。
The realization of low earthing resistance design in high resistance rate places is emphasized, such as stony soil, gravel, rock and so on.
重点提出了如何在多石土壤、砂砾、岩石等高电阻率的场所实现低接地电阻的设计要求。
The capabilities of interference and anti-interference of a set of electronic communication equipment depend on the rationality of earthing.
电子通信设备中的接地技术,关系着整台设备的干扰特性及其抗干扰性能。
The justifying conditions can be used to justify the location of faults, including single phase earthing, two phases earthing and two phases shorting.
该判据可以对不对称的故障进行故障定位,这些故障包括单相接地故障、两相接地故障和两相短路故障。
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