1、针对性强，保护到位

1, targeted, protection in place

变压器中性点接地电阻柜适用于系统中性点采用小电阻或中电阻接地的场合。此时，电网出现单相接地故障时需立即跳闸切除故障线路。当电网出现单相接地时，接地电阻向接地点提供附加阻性电流，使接地电流呈阻容性质，从而保证产生的过电压不超过2.6倍的相电压。

The neutral grounding resistance cabinet for transformer is suitable for the neutral point of the system, and adopts the occasions of small resistance or middle resistance grounding. At this point, when the single-phase grounding fault occurs in the power grid, it is necessary to immediately trip to remove the fault line. When a single-phase grounding occurs in the grid, the grounding resistance provides additional resistance current to the grounding point, so that the grounding current is a capacitive resistance, so as to ensure that the generated overvoltage is not more than 2.6 times the phase voltage.

2、结构紧凑，便于安装

2 、 compact structure, easy to install

变压器中性点接地电阻柜将零散的Z型接地变压器（如系统无中性点引出则需加装）、电阻器、电流互感器、测量仪表、接地保护输出端子等电器设备整体组合在一个封闭金属柜内，而且可以选配隔离开关、避雷器，成套供货，安全可靠性高，布置清晰整齐，便于安装调试及操作维护。

Transformer neutral grounding resistor cabinet Z scattered grounding transformer (such as system without neutral point is needed), resistor, current transformer, measuring instrument, grounding protection output terminals and other electrical equipment integrated in a closed metal cabinet, and can be chosen with isolating switch, lightning arrester. Complete delivery, high safety and reliability, layout clear and tidy, convenient installation and debugging and maintenance.

3、选材考究，充分保证产品质量

3, exquisite selection of materials, and fully guarantee product quality

变压器中性点接地电阻柜内的接地变压器为优质干式变压器，其一次绕组为“Z”形接线；电阻器采用不锈钢合金、镍铬合金等材料制成，导电率高、通流能力强、耐高温、最高使用温度可达1600℃；温度系数≤ -0.045% /℃、阻值稳定、耐腐蚀、防燃防爆、可靠性高。

Transformer neutral point earthing transformer resistance cabinet for high-quality dry-type transformer, the primary winding is "Z" shaped wiring; using resistors made of stainless steel alloy, Ni Cr alloy materials, high conductivity, flow ability, high temperature resistance, high temperature can reach 1600 DEG C; the temperature coefficient is less than or equal to -0.045% / C resistance, stability, corrosion resistance, anti explosion, high reliability.

4、监测功能齐全，并提供模拟量输出

4 、 monitoring function is complete, and provide analog output

变压器中性点接地电阻柜可配备电流互感器和动作记录仪，正常时可监视中性点不平衡电流；出现单相接地故障时，可记录动作次数；且可给保护和监控系统提供模拟量输出；还可根据需要加装专用避雷器。同时应用户要求本设备可加装测控保护装置。

Transformer neutral grounding resistor cabinet can be equipped with a current transformer and the normal action recorder, can monitor the unbalanced current in neutral point; single-phase ground fault, can record the action times; and to the protection and monitoring system provides analog output; can also according to need to install special lightning arrester. At the same time, this device can be equipped with measuring and protecting equipment at the request of users.