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Transformers are most needful equipment in any power substation. Power supply at different voltage levels is acquired through transformer only, which gives great ease to power networks. The life of transformer can be calculated with the help of insulating parameters like oil, paper insulation, etc. In this paper, various assessment techniques are studied to explain the characteristic of transformer insulation system. These techniques deals with different parameters related to oil and paper insulation system. Characteristics of these parameters determine the degradation and aging aspect of insulation system and hence life of any transformer. Here, five aged transformer oil samples were tested at different substation locations of Himachal Pradesh State Electricity Board of rating range 16–20 MVA. Efforts are made to establish a co-relation between these different parameters and find out the condition of transformer insulation.

This paper presents an upgrade of an existing fuzzy logic method for evaluation of the reliability of power substations with implemented distributed generation, considering uncertainty and imprecision of the input data. The method is presented on a 110/35 kV/kV substation and gives satisfactory results from an engineering point of view and provides a high level of precision and model simplicity.

This study discusses a numerical study that was developed to optimize the ventilation system in a power substation prior to its installation. We established a multiobjective particle swarm optimizer to identify the best approach for simultaneously improving, first, the ventilation performance considering the most appropriate inlet size and outlet openings and second, the reduction of the synthetic noise of the ventilation and power consumption from the exhaust fan equipment and its operation. The study used building information modeling to construct indoor and outdoor models of the substation building and verified the overall performance using ANSYS FLUENT 18.0 software to simulate the air velocity and air temperature distribution within the building. Results show that the exhaust fan of the B1F cable finishing room and the 23 kV gas insulated switchgear (GIS) room optimize the reduction of horsepower by approximately 1 Hp and 0.5 Hp. The combined noise is reduced by 4 dBA and 2 dBA; the exhaust fan runs for 30 min, and the two equipment rooms can cool down by 2.9 °C and 1.7 °C, respectively. Therefore, it is confirmed that the MOPSO algorithm provides a more energy-efficient and environmentally friendly building ventilation environment.

This paper presents the intruder detection by using the Faster R-CNN model and administrator system for the power substation in Khon Kaen substation 4 of the Electricity Generating Authority of Thailand (EGAT). There are two processes of intruder detection-detecting the intruder and sending a notification to the system administrator of EGAT through Line application. The Faster R-CNN model of intruder detection was trained and tested by using the Open Image Dataset and our dataset. We collected our dataset of 1,500 images from a different condition from the real environment. There are two conditions, including distance and light intensity. Our system used a high-performance computer by using GPU: Nvidia Titan RTX 24 GB to support the object detection system from using five cameras at the same time. The performance of intruder detection achieved by greater than 95%.

The hot spot temperature of transformers operating in the station area is calculated in real-time using the transformer heat path model as it is impossible to measure the internal winding hot spot temperature directly and modifying the transformer will increase the cost. The smart distribution transformer terminal is an important device for collecting and processing data on the side of the distribution transformer, with a container built from Linux inside to run an application (App) with specific functions developed in the Linux environment. Based on that, the heat circuit model of the transformer is developed into an App installed into the container of the smart distribution transformer terminal to realize the function of the real-time computing and warning of transformer hot spot temperature. It is expected to provide some reference for the transformer operating normally and stably.

This paper presents the most important achievements in the field of electric power substation equipment's inspection by mobile robot. To accelerate the realization of unattended substation, which would improve the reliability, safety and intelligence of power substation, the field of automated power substation equipment's inspection has been greatly developed over the last decade. The paper addresses the power substation inspection robot, which is considered as one of the most active fields of research on mobile robot, from its history to design requirements, the robot system architecture analysis and modeling, reliability technology of the robot, autonomy and universality of substation equipment inspection. Besides, summaries and suggestions on the development and research trend of inspection robot, which should be addressed in the future, are given. The present work may serve as reference for initial design of robots for some complex and dangerous working environments. And some unique insights for the inspection robot provided in this paper may be of help to further research and application of power facilities inspection.

Visible image recognition of power substation equipment is an important part of intelligent operation and maintenance, fault location and infrared defect diagnosis. The image recognition methods used in the past have some problems, such as less details of equipment, vulnerability to environmental interference, low recognition rate and so on. In this paper, a visible image recognition model of substation equipment based on Mask R-CNN is established. The image recognition model based on Faster R-CNN is used to compare the results. The two types of image recognition models are trained by using 7,000 labeled data sets of visible photographs of power substation equipment. Using the image recognition model trained by 2,000 visible light photographs of substation equipment, this paper mainly studies the recognition effect of 11 typical substation equipment, such as transformer, current transformer and bushing. The results show that the model based on Mask R-CNN can realize the pixel-level recognition of power substation equipment and can be used for accurate identification of power substation equipment. Although it cannot achieve pixel-level recognition, the model based on Faster R-CNN is faster and more accurate than that based on Mask R-CNN in target box detection. The model based on Faster R-CNN is faster and more accurate than the model based on Mask R-CNN. Both models need to be further improved for the scene of power substation equipment.

The paper deals with the study of a defect in the 20 kV network at the power substation. In some cases this could lead to dangerous transient phenomena, associated with overvoltages and current circulations. In this paper such a scenario is discussed showing not only the causes and effects, but also some recommendation to avoid possible damages, based on oscillograms recorded by digital protective relays.

Monitoring of electromagnetic field (EMF) has been widely demanded, particularly in vicinity of well-known EMF sources, such as high-power substations. Regarding the fact that modern power substations are equipped with different communication equipment for remote control and supervision of its processes, they become an additional, important source of the high-frequency electric field. Thus, this paper considered the high-power 110/x kV outdoor substation “Novi Sad 7”, once more, performing periodic EMF monitoring and presenting newest measurement results of the high-frequency electric field in its vicinity. The latest measurement results are compared with results obtained in previous 2015 measurement campaign. Regarding the acquired measurement results in 2018, as well as in 2015, they are below the Serbian prescribed reference levels, while subsequent EMF exposure is also far below the maximum allowed level.

The article deals with the issue of standardization of approach to definition of modern digital substation is considered. The approaches proposed and partially implemented by equipment manufacturers are described, such as data collection and processing by means of relay protection and automation with the use of proprietary algorithms, wireless and optical current and voltage sensors, etc. The authors propose the use of a unified system for collecting and processing data generated and used in the operation of an electric substation. The structure of the signal transmission system for the main groups of electrical power equipment is described, the requirements for the predictive diagnostics system that allows maintaining the equipment based on its technical condition are described.

At present, the standardisation of electrical equipment communications is on the rise. In particular, manufacturers are releasing equipment for the smart grid endowed with communication protocols such as DNP3, IEC 61850, and MODBUS. However, there are legacy equipment operating in the electricity distribution network that cannot communicate using any of these protocols. Thus, we propose an infrastructure to allow the integration of legacy electrical equipment to smart grids by using wireless sensor networks (WSNs). In this infrastructure, each legacy electrical device is connected to a sensor node, and the sink node runs a middleware that enables the integration of this device into a smart grid based on suitable communication protocols. This middleware performs tasks such as the translation of messages between the power substation control centre (PSCC) and electrical equipment in the smart grid. Moreover, the infrastructure satisfies certain requirements for communication between the electrical equipment and the PSCC, such as enhanced security, short response time, and automatic configuration. The paper’s contributions include a solution that enables electrical companies to integrate their legacy equipment into smart-grid networks relying on any of the above mentioned communication protocols. This integration will reduce the costs related to the modernisation of power substations.

This paper presents the web application – AITRANS – used for the periodic training and testing of operative staff in high voltage substations of the Timisoara Branch of Transelectrica, the Romanian Power Transmission System Operator. According to legislation in Romania, operative staff of the Transmission System Operator (TSO) must accomplish a given number of hours of training every semester where they will be familiarized with new and/or modified procedures and the legislation used in the operation of high voltage power system substations. After these training sessions, each person must take a test to ensure proper assimilation of the new information. To optimize the training and evaluation process, a web application was developed. With a user name and password (for user level), each member of the operative staff can log in and study the materials at any time, and also self-assess their knowledge by taking several tests. The administrator can remotely observe the training status of each person, and will also generate a final test at the end of the training period. Using the web application instead of the traditional method of training and testing proved to be very effective. The feedback from staff was positive.

A proposal of a fault location technique for power distribution systems considering distributed generation (DG) and uncertainties associated to the fault resistance, load magnitude and model, fault type and faulted node is presented in this study. The approach presented here uses only single end measurements at the main power substation and at the DG source. To demonstrate the good performance of the proposed approach, tests on the 24.9 kV IEEE 34 nodes test feeder, which includes three-phase and single-phase laterals, are performed. According to the results, a high performance is obtained in the fault distance estimation, considering the shunt faults and the uncertainties in the proposed test scenarios. Finally, it is demonstrated that the proposed approach helps to maintain high continuity indexes by speeding up the fault location task in modern power distribution utilities.

Mobile power substations (MPSs) are optimally designed to be installed on a truck bed for ease of transportation in order to provide an interface between two medium-voltage distribution systems under emergency or maintenance conditions. Based on the solid-state transformer (SST), a topology of N-series modules concept is proposed for MPS. The average control methods are used to balance the voltage and power for each SST module. The device losses are analyzed to estimate an upper limit to the theoretical system efficiency for a 5 MW–100 kHz MPS with 1.7-kV SiC MOSFET. Simulation results of three series-connected modules demonstrate the proposed MPS. A scale down prototype with three-series modules SST is build and parts of the system is tested.

The paper presents the results of a new statistical based data mining approach that explores the load curves in order to detect abnormal data, the so-called outliers. The load curves characterized by their main indicators are provided from Smart Meters mounted on the power substation. The proposed method was tested using a real database with 290 substations from rural area. By outlier's elimination, the results demonstrate the ability of the proposed approach to be efficiently used by distribution operators in accurate patterns discovery of the load curves characteristics with the help of which the operation and planning of power systems, could be made.

In this paper is analysed the power quality phenomena that can occur in a plant producing wood-based panels. In the measurements was used PowerLogic ION7650, connected in power substation (110/20 kV). Reports provided by analyser showed the electromagnetic disturbances that could adversely affect the operation of electrical equipment from analysed plant. Experimental results allowed the identification of main power quality problems and technical methods for mitigate the negative effects of them.

Electromagnetic radiations emanating from the high voltage lines and substations pose serious adverse health consequences to living beings. As a result, selection of power substation location is an important strategic decision-making problem for both public and private sectors. In general, many conflicting factors affect the appropriate substation location selection problem which adheres to uncertain and imprecise data. In this paper, a simple, systematic and logical scientific approach is structured to evaluate power substation location through integrating Fuzzy Analytical Hierarchy Process (FAHP) with the Preference Ranking Organization Method for Enrichment Evaluations (PROMETHEE). The proposed integrated approach provides more realistic and reliable results, and facilitates the decision-maker to handle multiple contradictory decision perspectives through eliminating the limitations of FAHP and PROMETHEE methods. To accredit the proposed model, it is implemented in a power substation location selection problem in Bangladesh.

Recently infrared cameras have been widely used to diagnosis degradation status of the power substitution system. At the place of high magnetic field, however, electronic parts of infrared camera take a place problem that is not reasonable working due to high magnetic field. In this paper, technique of design for reflector is proposed to perform degradation diagnosis without damage of infrared camera in a power substation system including the rectifier that is able to impact to the infrared camera by high magnetic field.

This study aims at quantitatively assessing the availability indices of various substation automation systems. In order to illustrate the proposed technique, first, nine types of substation automation architectures are reviewed. The reliability block diagrams of various substation automation architectures are then developed. Subsequently, comparative studies are performed to demonstrate the most reliable architectures in comparison with the others. The results obtained by the proposed approach show the impact of repair on availability indices of the automation system. Finally, different sensitivity analyses are conducted for all architectures, where the impact of varying availability of all components on reliability indices of the automation system is illustrated.

The high-power substations, as an essential part of power distribution network, are being equipped with various communication equipments for remote control and processes supervision. Therefore, those objects become sources of the high-frequency electromagnetic field (EMF). Moreover, regarding its infrastructure and constant security observation, those objects become highly interesting for operators of commercial communication services. These facts are in line with public demand for EMF investigation in the vicinity of such objects, but not only of the low-frequency magnetic field. In this paper, the case study of the high power 110/x kV outdoor substation “Novi Sad 7” has been considered, presenting the high-frequency electric field strength monitoring in its vicinity. The obtained measurement results are below the Serbian prescribed reference levels, while potential EMF exposure is far below of the maximal allowed level.

Objectives: To find the existing location of load points and substation. The load points need to be divided into different clusters with substation location for each. It is intended to find the optimum route of transmission line with load flow analysis to justify the work. Method/Analysis: Geographical Information System (GIS) platform can be used to locate the load points in terms of coordinates (Longitude and latitude). Soft computing based clustering algorithm can be used to divide the load points into different clusters with suitable optimum location of each substation. GIS software can be used for finding possible shortest route of transmission line. For load flow analysis Newton raphson can act as an effective tool. Findings: The proposed methodology will help power system planners to make a complete solution of planning problems from optimizing the location of substation to load flow analysis. The method proposed can replace the traditional way of planning by mathematical calculations. Use of GIS will help to consider all the geographic impacts. Novelty/Improvement: GIS software use in power system planning will give planners a new and efficient way of planning. The method will reduce man-machine effort.

The article presents the idea of using expert evaluation methods for choosing power substations equipment. The article suggests using analytic hierarchy process as the most convenient for such type of complex task solving. Direct analytic hierarchy process is represented as an improvement over the traditional method developed by Thomas L. Saaty. It simplifies analytic hierarchy process by getting weights of the criteria and alternatives without pair-comparison matrix forming.

The nonintrusive load monitoring is an emerging technology which aims to control energy consumption and the analysis of electrical equipment behavior from power substation internal services equipment. The paper describes a calculus method and a system for nonintrusive load monitoring of the electrical parameters from the auxiliary services on a power substation.

The most known sources of the low-frequency electromagnetic field (EMF) can be found in electric power systems. Those systems and their power distribution parts have become the backbone of economic, technological and overall development of human society, intensely in modern-days. The actual humanity highly depends on the reliable power supply and thus a number of power distribution substations have been established, even in densely populated residential parts of the cities. The presence of such a power substation increases the public concerns on dangerous health effects, considering the exposure to EMF in the vicinity of substations. Thus, the comprehensive and detailed monitoring was demanded, along with the exposure assessment to EMF radiation. The continuous broadband monitoring method of the Serbian Electromagnetic Field Monitoring Network - SEMONT has been considered in this paper, in a case study of the power substation “NS7 - South Telep”, located in the city of Novi Sad, the Republic of Serbia. The exposure assessment, based on daily boundaries, has been employed, showing that acquired results emerge to be far below the Serbian prescribed reference levels.

The intensive increase of the number of population in modern cities demands a highly reliable power supply, requiring power distribution systems that will accomplish this challenging task. In order to increase the reliability of consumers supply, the additional power distribution substations are commonly installed, which in time become surrounded by the expanded residential areas. In consequence, their presence increases the health concern of residents, having in mind that power substations are known sources of the low-frequency electromagnetic field (EMF). Therefore, the continuous monitoring of EMF is expected, as well as the adequate assessment of corresponding exposure of population in vicinity of such objects. In this paper, the test utilization of a modern, wireless sensors-based monitoring network, the Serbian Electromagnetic Field Monitoring Network - SEMONT, was considered for the advanced low-frequency EMF monitoring in the upcoming smart cities environment. The case study and test measurements were performed in vicinity of the power substation “NS7 - South Telep”, located in the city of Novi Sad, the Republic of Serbia, where the acquired results emerge to be far below the Serbian prescribed reference levels.

With the dramatically increasing number of substations, the robots are expected to inspect equipment in power industry. This paper presents a task-oriented robot for inspection in power substation. The patrol mode of the robot comprises teleoperation, regular inspection, special inspection and a key return mode. The robot only relies on a low-cost magnetic sensor for lateral positioning and radio frequency identification (RFID) technology for longitudinal positioning when working under patrol mode. The positioning error is proven to be within 5 mm, comparing 20 cm by integrated GPS-DR navigation. The test result shows that the robot could work efficiently and reliably in power substation.

The majority carrier domain of power semiconductor devices has been extended to 10 kV with the advent of SiC MOSFETs and Schottky diodes. Twenty-four MOSFETs and twelve JBS diodes have been assembled in a 10 kV half H-bridge power module to increase the current handling capability to 120 A per switch without compromising the die-level characteristics. For the first time, a custom designed system (13.8 kV to 465/√3 V solid state power substation) has been successfully demonstrated with these state of the art SiC modules up to 855 kVA operation and 97% efficiency. Soft-switching at 20 kHz, the SiC enabled SSPS represents a 70% reduction in weight and 50% reduction in size when compared to a 60 Hz conventional, analog transformer.

A PCEUDO finite element method of transient analysis of multi-conductors transmission lines (MTL) in a reference is pointed out and proved to be the finite difference time domain (FDTD) method. Based on the explicit/implicit method, a time domain finite element method of transient analysis of MTLs is presented. And the method is validated with one numerical examples making comparison with the FDTD method.

Recently, safety diagnosis of the existing structures has been emerged as important issue. In particular, systematical and precise safety diagnostics for steel structures for power substation, have been required. Steel structures for power substation are under the periodical impact loads from operations of gas insulated switchgear. These loading condition accelerates damage and aging of structure. The objective of this research is to evaluate damage of structure under periodical impact loads. To evaluate the integrity of structures as organizing mathematical models including the dynamic characteristics of structures, Frequency Domain Decomposition method was choiced and an algorism was proposed. For verifying this methods and algorism, a mathematical model is composed of the development of a variety of reverse analysis and a signal processing technology reflecting physical damage of structures. A series of analysis and test results indicatge that proposed method has a confidence for applying a filed test. Therefore, it is expected to be able to take advantage of system identification to detect damage for the maintenance and management of steel structures under periodical impact loads such as power substation.

Condition Based Maintenance (CBM) is a new maintenance strategy and interest of utilities for reliable operation of aged power equipments. Although CBM has been tried to apply for various equipments, since an affection of accuracies of condition information from sensor have not sufficiently discussed, specification of reliable information is still not clear and CBM has not widely applied in actual power substation. The affection of accuracies of condition information for the criteria of failure recognition is treated in this paper. Authors retrace to the potential—failure curve (P-F curve) in original Reliability Centered Maintenance (RCM) concept and explain the affection. The explanation is proved using comparison with original sensor for CBM and existing sensor in SF6 gas slow leakage detection experiment. As a result of experiment SF6 gas leakage less than 0.1%/year might be detected using CBM sensor. The authors concluded that special performances in sensitivity and long term stability of sensor are very important for reliable operation of power substation under CBM strategy.

The development of 10 kV silicon carbide (SiC) MOSFETs and Junction Barrier Schottky (JBS) diodes for application to a 13.8kV 2.7 MVA Solid State Power Substation (SSPS) is shown. The design of half-bridge power modules has extensively used simulation, from electron level device simulations to the system level trade studies, to develop the most efficient module for use in the SSPS. In the work presented within, numerical simulations and experimental results are shown to demonstrate the design and operation of 10 kV JBS diodes. It is shown that JBS diodes at 10 kV can reduce 31% of the switching losses at 20 kHz than the fastest SiC PiN diodes.

This paper examines estimation of the extremely low frequency magnetic fields (MF) in the power substation. First, the results of the previous relevant research studies and the MF measurements in a sample power substation are presented. Then, a fuzzy logic model based on the geometric definitions in order to estimate the MF distribution is explained. Visual software, which has a three-dimensional screening unit, based on the fuzzy logic technique, has been developed.

Northrop Grumman Corporation has been developing 10 kV SiC MOSFETs and Junction Barrier Schottky diodes for application to a 13.8 kV 2.7 MVA solid-state power substation. The design of half-bridge power modules has extensively used simulation, from electron-level device simulations to the system-level trade studies, to develop the most efficient module for use in the SSPS.

The effects are studied of the material for leveling spread over and of installation channels led through substation site upon the safety risk associated with grounding. The main ground grid performances in case of ground faults are analyzed for various ratios of overlaid material and surrounding soil resistivities and horizontal dimensions and thickness of the overlaid material. Also, the effects of the installation channels dug along various routes upon the potential distribution on the ground surface and step voltages are considered. It was shown that the mentioned local nonuniformities can substantially affect the safety performances of the ground grid and that they should be carefully taken into consideration. The local soil irregularities considered have been modeled by applying the method of finite elements.

This paper examines the electric and magnetic fields in an indoor electric power substation 132/11.5 kV in Cyprus. First, the results of previous relevant research studies, as well as the reference levels for safe general public and occupational exposure, given in the guidelines of the International Commission on Non-Ionizing Radiation Protection (ICNIRP), are presented. Next, basic data for the examined substation as well as a brief description of the field measurement instruments used are given. Indicative results of the electric and magnetic field measurements in the rooms of the above-mentioned indoor power substation, accompanied by relevant tables and diagrams follow. Final conclusions concerning safe public and occupational exposure to these fields are set out.

MCR (Magnetically Controlled Reactor) is a powerful tool to settle the reactive power compensation problem. It has many advantage characteristics than the ordinary saturated reactor. In order to prove its functions, the application of MCR in a transformer substation is presented. First is how to design the components of MCR and how to calculate the parameters. Then the energy efficiency analysis is studied and in the end the risk analysis is discussed. In order to test the function of MCR, a case is enumerated to prove its efficacy.

While continuity based testing is a relatively well accepted method for assessing the integrity of a grounding grid, no specific continuity based test has distinguished itself with practitioners at large. Why this continues to be the case is not completely understood but it is likely a combination of ignorance of more effective procedures and the availability of better instrumentation. This paper reviews the various continuity based methods used for integrity testing and the characteristics required of a test procedure to make it effective at assessing integrity. This is considered primarily due to a lack of review of the various methods and instrumentation available to perform integrity testing. Accurate measurement of resistance in the electrically noisy environment of a power substation is a difficult task. In the case of grounding grid measurements, not only are the noise levels quite high but the resistances to be measured are relatively small, and the absolute significance of a specific measurement can be obscure. In practice the context of any given measurement is crucial to determining the significance of the measurement. While continuity testing can be performed at any power installation this paper concentrates specifically on the integrity assessment of a major substation. Most power utility substations are of a reasonable size, typically a few thousand square meters of real estate, which usually defines the extent of the grounding system and hence the extent of the integrity testing. This paper identifies the obstacles to performing an accurate measurement of resistance in the noisy environment of a power substation, establishing measurement targets and specific instances of poor integrity.

The paper represents results of an investigation of distribution of the magnetic field intensity near the equipment of the 500 kV power substations in Russian Federation. The investigation is conducted with position of security life activity of the technical personnel.

KEYWORD:HTS; Cryogenic; Forced circulation; Heat loss; HTS substation; HTS apparatus; Cool- ing system ABSTRACT:A 10 kV High Temperature Superconducting power substation with a cooling system was developed and has been put into operation in power distribution system for more than three years. The working conditions, heat resource and the distribution character of the four apparatuses working at the 10 kV/630 kVA HTS substation were analyzed. The heat load is distributed along the length for the cable for which thus a forced enclosed circulation system is necessary; while it is con- centrated within only several cryostats for the other three HTS apparatus for which it is enough to cool only with an opened loop cooling system by consuming of liquid nitrogen. And an independent cooling system with refrigerator for the 1 MJ SMES is a good selection due to the different working temperature range. Based on the analysis and discussion, a concentrated evaporative cooling station which includes an opened loop cooling system without circulation and a forced circulation system with a closed circle was designed and constructed.

The mathematical model of the power substation is proposed. The substation esteems as a set of the equipment elements which integrated common connections and electromagnetic field. Some capabilities of model represented by both electric networks and a discrete logical model demonstrated by non-directional graph. The model can be useful for solution of the problem of diagnostic of the high-voltage equipment.

This paper describes software realization and implementation for the communication according to the IEC61850 Standard, between the module for supervising teleprotection equipments and the power substation server. Teleprotection equipment have important role in transmission of messages for power line section tripping. Software is implemented on the hardware platform type: MSC “nanoRISC-S3C2416 MB2” which belongs to the “COM - computer on module” systems.

This paper studies reliability of power substation with parallel connected power transformers and its preventive maintenance strategy. The processes of transformers failure are modeled by Poisson processes with correlation. Representing by multi-Gaussian Copula function, the mathematical formula of reliability of three power transformers connected parallel is given, and the reliability of substation with preventive maintenance schedule is studied. By the mean of Monte Carlo simulation, the reliability of three power transformers parallel connected is calculated, and its preventive maintenance schedule is discussed. The research of the paper shows that the failure correlation of transformers is key factor to the preventive maintenance schedule.

Designing grounding systems for high voltage substations has been always considered a serious concern. High losses and costs of performing conventional designs have made researchers think of new substitute plans. The designed system should be able to provide safety for personnel and electrical devices under steady-state operation and transient disturbances. In this paper, a new strategy for designing high voltage substation grounding system is proposed, taking into account relevant IEEE standards. It will be shown that this approach, which is based on CymGrd software package, will have more output parameters that makes the model more efficient, so it can be a sufficient replacement for other conventional methods. One high voltage substation located in northwest Iran is analyzed and then the effectiveness of this method is compared with other methods.