2) grounding car
接地小车
1.
To settle the bus grounding problem during down-lead or bus maintenance operation in 10 kV metal-clad mobile indoor center-type switch cabinet,a bus grounding car has been jointly developed by Dongguan Power Supply Bureau and the manufacturer.
为解决10kV铠装移动式户内(KYN)中置柜内引下线或母线检修操作时对母线进行接地的问题,东莞供电局与厂家共同研发母线接地小车,明确10kV母线接地点是在电压互感器(TV)开关柜进行接地,并对KYN柜母线接地小车防误回路的3种方案进行了分析、比较和选择,提出了将母线接地小车进一步完善为可电动分合闸的验电接地小车的建议。
3) small resistance grounding
小电阻接地
1.
The grounding current value,fault current feature of the small resistance grounding system and ranges of zero sequence current protection when grounding transformer is connected to different position are analyzed.
介绍了小电阻接地系统的接地变压器接于不同位置时的接地电流值和故障电流的特征,分析了零序电流保护范围的不同。
2.
The paper analyzed the modes of neutral effective grounding and neutral non-effective grounding, and compared two modes of small resistance grounding and arc suppression coil grounding.
对中性点有效接地方式和中性点非有效接地方式加以比较分析,并分别以具有代表性且应用比较广泛的经小电阻接地和经消弧线圈接地2种方式进行了比较。
4) non-solidly earthed network
小电流接地
1.
A new approach to single phase to ground fault section location based on transient signals in a non-solidly earthed network is presented.
提出一种适用于配电系统架空线路的小电流接地故障区段定位新方法。
2.
The structure, work principle and field application of a monitoring system for earth fault in non-solidly earthed network are presented.
介绍一种小电流接地故障监测系统的构成、工作原理及现场应用情况。
5) small current neutral grounding
小电流接地
1.
A complex ground fault line selection device in small current neutral grounding network;
一种复合型微机小电流接地选线装置研制
2.
The single-phase grounding fault frequently occurs in small current neutral grounding power systems,it is necessary to select the faulted circuit as soon as possible.
单相接地故障在小电流接地系统中出现比较频繁,尽快地选出故障线路对电网运行有重要意义。
6) small current grounding
小电流接地
1.
Integrated fault line selection device for small current grounding network;
一种新型小电流接地综合选线装置
2.
Design of programmable sampling system in fault line selectiondevice for small current grounding system;
小电流接地选线装置可编程采样系统设计
3.
Line selection technology for small current grounding systems;
小电流接地选线技术的分析
补充资料：保护接地
分子式：
CAS号：
性质：一般指不接地配电网中用电设备金属外壳经接地线、接地体与大地的直接连接。在不接地配电网中，凡由于绝缘损坏或其他原因而可能带危险电压的正常不带电金属部分，除另有规定外，均应接地。对于低压配电网，用电设备的保护接地电阻一般不应超过4Ω。配电容量不超过100kVA，保护接地电阻不应超过10Ω。
CAS号：
性质：一般指不接地配电网中用电设备金属外壳经接地线、接地体与大地的直接连接。在不接地配电网中，凡由于绝缘损坏或其他原因而可能带危险电压的正常不带电金属部分，除另有规定外，均应接地。对于低压配电网，用电设备的保护接地电阻一般不应超过4Ω。配电容量不超过100kVA，保护接地电阻不应超过10Ω。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条