• ETEEP_Primary Function

Primary Function of Grounding Technology and Electromagnetic Environment in Electric Power (ETEEP)

Presented by Wuhan Tianyi Electronics Co., Ltd.

Website: http://www.01099999.com

Overview

ETEEP is a highly professional design and calculation software for power engineering grounding technology and electromagnetic environment evaluation. It is intuitive to operate and provides reliable, comprehensive results. The software covers three major functional areas:

1. DC Grounding Electrode and Electromagnetic Environment

- Model Creation: Easily and quickly build site models using measured soil resistivity values. Data can be imported via XLS files, and horizontal stratified soil models can be generated through inversion curve fitting. See Fig 1.

    Fig. 1   Curve fitting for model

- 3D Modeling: Based on site conditions and measured data, users can construct 3D calculation models, supporting both multi-point data layering and equivalent soil models.

- Electrode Layout Modeling: Supports three modeling methods: DWG import, mouse drag-and-drop, and keyboard parameter input.

- Design and Optimization: Users can quickly compare design schemes (compact, split-type, shared, vertical, deep-well electrodes), including current diversion layout and optimization calculations. See Fig. 2.

    Fig. 2   Interface for Electrode Layout and Optimization

- Parameter Simulation: Simulate characteristic parameters such as grounding resistance, maximum step voltage, leakage current density, and electric field distribution using multi-layer soil models. Two example for the level and   vertical   layout  is given as  fig. 3

 

Fig. 3   Two example for Potential rise & electrical Filed distribution

System Saturation Impact: Automatically identify and evaluate DC ground current impact on power transformer magnetic saturation. Its dialog box   is seen as fig. 4.

- Metallic Structure Impact: Build models to simulate the electromagnetic effects of ground currents on buried cables, pipelines, and underground metals. See fig. 5

- Insulation Coordination: Based on DC arc extinction theory, simulate arc voltage and DC

follow current under fault conditions to guide insulation design. See fig.6.

   Fig  4.   Dialog box for System Saturation Impact

       Fig  5. Dialog box for Metallic Structure Impact

   Fig  6. Dialog box for Insulation Coordination

2. Substation (Converter Station) Grounding Grid

- Short-Circuit Current Calculation: Based on voltage, capacity, and tower specifications, calculate grounding current during faults using either the current division coefficient method or simulation. See Fig 7

Fig. 7

- Grid Design and Modeling: Quickly build arbitrary shaped grounding grids with any mesh spacing using DWG import, parameter input, or drag-and-drop.. See Fig 8

 Fig.8

- Simulation of Grid Parameters: Simulate grounding resistance, step and touch potentials, leakage current density, and visualize electric field and potential distribution using layered soil models.  Grid example   is given as  fig. 9

Fig.9    Potential rise & electrical Filed distribution on the Ground

3. Substation Area Lightning Protection

- Modeling: Based on substation layout (lightning rods/wires), build 3D models for lightning protection via DWG import, parameter input, or mouse drawing.

- 3D Protection Range: Calculate and visualize lightning protection zones using the broken-line and rolling sphere methods, with auto-generated 3D protection cloud maps.

 Fig.  10    Modeling and 3D Protection Range of  Substation Area Lightning Protection

4. Output Results

- Construction Drawings: Automatically generate DWG-format construction drawings and material lists based on grounding layout designs.

- Design Reports: Automatically produce reports in TXT, RTF, XLS, or JPG formats, including material summaries and illustrations, fulfilling diverse documentation requirements.

Contact Information

For more information, visit our website or contact Wuhan Tianyi Electronics Co., Ltd.