Relay protection setting

※ User range:

The electrical engineers of Beijing Xinya Shengchuang provide relay protection rating calculation services for power systems of various users, and provide relay protection for power supply and distribution systems such as power plants, power grids, large petrochemical enterprises, steel mills, paper mills, and offshore oil fields. Protection setting calculation and setting value verification consulting services, and finally form setting calculation setting value list and calculation report.

※ Professional features:

The experienced professional team of Beijing Xinya Shengchuang Electric designs the relay protection configuration scheme of each equipment, conducts reasonable setting calculation for the setting value of the protection device, studies the cooperation between various protections, and combines them through accident simulation and simulation. The specific protection device finally proposes an optimization scheme for the relay protection configuration of the enterprise power system to ensure that the protection device can act accurately in the event of a fault in the enterprise power grid, reduce losses and ensure the safety of the power grid.

※ Service Content:

1. Build the model

Establish a simulation analysis model of the whole power grid

2. Calculation of short-circuit current

Short-circuit current of each node for various fault types in maximum and minimum operation modes

3. Relay protection setting calculation

Reasonable configuration and setting calculation of power system relay protection, main protection and backup protection for any short-circuit response to any protected equipment and line installation specifications.

4. Sensitivity analysis

According to the fault current, check the protection setting value to meet the requirements of the four properties

5. Analysis and research of relay protection coordination

Check reliability and selectivity of all protections

6. Protection Calculation and Valuation Sheet

Provide relay protection calculation process, calculation book, and setting value list