产品详情资料
接地故障继电器模块SPCD 2D55的稳定差动电流原理的操作特性设置范围为了能够计算方向差动电流Idcos，相电流和中性电流的剩余电流的基频分量的振幅必须高于额定电流的4%。如果仅满足一个条件，cos=1。继电器模块有一个单独的设置，该设置考虑了变压器星形点和受保护侧网络之间的接地故障电流分布。中性电流与相电流的剩余电流之比必须大于高压侧的设置I01/∑I1和低压侧的设置值I02/∑I2，以允许相关侧的保护级启动。该比率的设定范围为0…20%。当设定值I01/∑I1（或I02/∑I2）大于0%时，跳闸所需的该侧中性电流的小值为2%x In。
Setting range of the operation characteristic for the stabilized differential current principle of the earth-fault relay module SPCD 2D55 To be able to calculate the directional differential current Idcosϕ the amplitude of the fundamental frequency component of both the residual current of the phase currents and the neutral current has to be above 4% of the rated current. Should one condition only be fulfilled, cosϕ = 1. The relay module has a separate setting that takes into account the distribution of the earthfault current between the star-point of the transformer and the network on the side to be protected. The ratio of the neutral current and the residual current of the phase currents must be greater than the setting I01/∑I1 on the HV side and the setting I02/∑I2 on the LV side to allow the protection stage on the concerned side to start. The setting range of the ratio is 0...20%. When the setting I01/∑I1 (or I02/∑I2) is more than 0%, the minimum value of the neutral current of that side required for tripping is 2% x In.
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●使用前:
在操作和维护，安装设备之前，请阅读并严格遵守安全相关的信息。
Read and strictly follow safety-related information before operatingmaintainingand installing equipment.
●使用者要求:
必须从事安装，组装或维护设备等相关工控电气机械以及其他相关技术的人员。
Must be engaged in the installation,assembly or maintenance of equipment and other related industriacontroeectrica machinery and other related technica personne.应用范围:
应用于品牌本系列工业以及生产生活自动化设备产品。
Used in the brand of this series of industriaand production automation eauipment products
适用于场景:系统集成，非标定制，产线升级改造，原设备电气替换等等。
Suitable for scenarios:system integration,non-standard customizationproduction line upgrading and transformation,electrical replacement of original equipment,etc.
●操作人员:
应该由本品牌专业培训操作员来安装、操作和维修设备。专业人员具有技术能力强，熟悉安全信息和安全实施:
熟悉设备的安装加工、操作和维护:熟悉处理所有的潜在危险情况。
Equipment should be installed,operated and maintained by trained operators from the brand
●危险情况
警告
.请注意使用人员的人身安全。
●除了产品特性以及功能，还需了解产品的使用寿命环境。
●充分学习产品使用手册，否则非专业人员可能会造成人身危险。
Study the product instruction manual thoroughlyotherwise it may cause personal danger to non-professionals.
●服务行业
适用水泥，木业，石业，橡胶，石油，化工，发电，环保，水处理，制冷，交通，钢铁，食品，饮料，船舶，制冷等行业
Applicable to cementwood,stone,rubber,petroleumchemical, power generation,
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