Instructor <a href="instructor-velimir">Velimir</a> in Electrical Engineering
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6T-Arc Flash Calculation Methods$90.00Learn MoreThis course gives an overview of arc flash hazard computations suggested by IEEE and NFPA. All formulas and calculation procedures presented in this course are the property of the IEEE and NFPA. Students are encouraged to consult the standards for additional details.
This course is suitable for engineers with a desire to understand procedures for completing arc flash studies. Course covers arc flash calculation methods, approach boundaries, incident energy, calculation of the arcing time, determining risk category, information presented on single line diagrams, reports and labels.
Learning Objectives
This continuing education course is intended to provide you with the following specific knowledge and skills:
Arch flash calculation methods
Approach boundaries
Incident energy
Calculation of arcing time
Determining risk category
Assessment results format used on single line diagrams, reports and labels
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4T- Limiting Arc Flash Exposure$60.00Learn MoreArc flash incidents may happen despite care taken to avert them. In such circumstances, it is always better if the incident energy is low and staff is ready for the worst by implementing adequate PPE. Arc flash incidents can be cut down by use of adequate equipment, proper preventive care, planning and coordination of operation, as well as skill improvement and real experience. Also crucial is the mental and physical circumstances of the staff such that the dropping of equipment and tools, accidental touching, etc., are averted.
This course is suitable for engineers with a desire to understand the how to limit arc flash exposure. Course covers discussion on preventive operation, limiting fault currents and adjustments of protection settings and personal protective equipment.
Learning Objectives
This continuing education course is intended to provide you with the following specific knowledge and skills:
Limiting arc flash exposure
System preventive operation
Limiting short circuit currents and arcing times
Adjustment of protective settings
Personal protective equipment selection
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5T-Power Quality Measurements - Essential Theory$75.00Learn MoreThe decline in quality of power is a big issue due to increase in the usage of power electronics that uses inverters, an increase of unbalanced loads like large furnaces or rectifiers, and typically complex power distribution due to an increment in power network interconnections for new energy plants, etc. Inadequate power quality induces potential problems in receptacle/transmission devices and electronic apparatus malfunctions.
Power supply network issues that are induced by inadequate power quality are a frequent issue for both electric power providers and consumers. Nevertheless, it is not simple to tell if the source of inadequate power supply quality is at the provider’s side or the consumer’s system. Depending on this arrangement, power quality measurement is required to know the actual source of power quality issues as well as to treat and assess for efficient countermeasures.
This course is suitable for engineers with a desire to basic theory necessary for power quality measurements. Presented details cover issues related to power quality events and parameters, sampling techniques, basic principles of measuring devices, statistical techniques used for processing results, connection of measuring instruments and their features. Practical steps for measuring process are also mentioned.
Learning Objectives
This continuing education course is intended to provide you with the following specific knowledge and skills:
Description of power quality events and parameters
Sampling techniques
Measuring device basic operating principles
Statistical techniques used for result processing
Connection of measuring instruments and their characteristics
Practical measuring steps
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6T-Switching Transients Analysis Fundamentals$90.00Learn MoreSwitching transients severe enough to cause problems in industrial power systems are most often associated with inadequate or malfunctioning breakers or switches and the switching of capacitor banks and other frequently switched loads. The arc furnace system is most frequently studied because of its high frequency of switching and the related use of capacitor banks.
By properly using digital computer programs these problems can be detected early in the design stage. In addition to these types of switching transient problems, digital computer programs can be used to analyse other system anomalies such as lightning arrester operation.
This course begins with a discussion of the switching transient phenomena, describes root causes and explains system operation is affected. A detailed explanation of modelling and calculation procedure is offered. Selection and sizing of surge arrester is covered in details. Explained techniques can be implemented in any commercial power system software package.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:- Power system switching studies fundamentals
- Typical circuit parameters for transient studies
- System modelling
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8T-High Voltage Busbar Protection$120.00Learn MoreCourse Highlights
The protection arrangement for an electrical system should cover the whole system against all possible faults. Line protection concepts, such as overcurrent and distance arrangements, satisfy this requirement, even though short circuits in the busbar zone are cleared after certain time delay. But in the case, unit protection is used for feeders and plants, the busbars are not inherently protected.
It is a fact that the risk of a short circuit happening on modern metal clad equipment is insignificant, but it cannot be completely dismissed. Nevertheless, the damage resulting from one short circuit may be huge, up to the overall loss of the substation by fire. Severe damage or destruction would possibly end in widespread and prolonged supply disruption.
This course is suitable for electrical engineers with a desire to understand the fundamentals of high voltage busbar protection. Presented details cover key technical concepts, design arrangements and protection types. Upon successful completion engineers will be able to address the most important high voltage busbar protection arrangements and principles and appropriate application.
Learning Objectives
This continuing education course is intended to provide you with the following specific knowledge and skills:
System protection schemes including frame-earth protection
Differential protection principles
High impedance differential protection
Low impedance differential protection
Arrangement of CT connections
Interlocked overcurrent busbar schemes
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10T- Protection Relay Testing and Commissioning$150.00Learn MoreProtection Relay Testing and Commissioning Course Highlights
The testing and verification of protection devices and arrangements introduces a number of issues. This happens because the main function of protection devices is related to operation under fault conditions so these devices cannot be tested under normal operating conditions. This problem is worsened by the growing complexity of protection arrangements, application of protection relays with extensive software functionalities, and frequently used Ethernet peer-to-peer logic.
The testing and verification of relay protection devices can be divided into four groups:
Routine factory production tests
Type tests
Commissioning tests
Occasional maintenance tests
This course is suitable for electrical engineers with a desire to understand the fundamentals of protection relay testing and commissioning. Presented details cover basic testing terminology, various tests including factory production, type tests, commissioning and maintenance tests. Upon successful completion engineers will be able to address different tests, related procedures, outcomes, simulation hardware and software and procedures during protection relay commissioning and occasional maintenance. -
8T- Practical Power Cable Ampacity Analysis$120.00Learn MorePractical Power Cable Ampacity Analysis
In Practical Power Cable Ampacity Analysis, you'll learn...- -Basic theory and factors that stand behind underground cable ampacity calculations
- -How underground cable installation methods affect cable current carrying capacity
- -Numerical methods that are used underground cable sizing including voltage drop and short circuit current calculations
- -How to calculate underground cable current carrying ampacity following real world examples
Overview
Cable ampacity studies calculate the current-carrying capacity (ampacity) of power cables in underground or above ground installations. This ampacity is determined by the maximum allowable conductor temperature. In turn, this temperature is dependent on the losses in the cable, both I2R and dielectric, and thermal coupling between heat-producing components and ambient temperature.
The ampacity calculations are extremely complex. This is due to many considerations, some examples of which are heat transfer through the cable insulation and sheath, and, in the case of underground installations, heat transfer to duct or soil as well as from duct bank to soil. Other considerations include the effects of losses caused by proximity and skin effects. In addition, depending on the installation, the cable-shielding system may introduce additional losses. The analysis involves the application of thermal equivalents of Ohm’s and Kirchoff’s laws to a thermal circuit. -
6T- Introduction to Protective Device Coordination Analysis$90.00Learn MorePractical Power Cable Ampacity Analysis
In Practical Power Cable Ampacity Analysis, you'll learn...
- -Basic theory and factors that stand behind underground cable ampacity calculations
- -How underground cable installation methods affect cable current carrying capacity
- -Numerical methods that are used underground cable sizing including voltage drop and short circuit current calculations
- -How to calculate underground cable current carrying ampacity following real world examples
OverviewCable ampacity studies calculate the current-carrying capacity (ampacity) of power cables in underground or above ground installations. This ampacity is determined by the maximum allowable conductor temperature. In turn, this temperature is dependent on the losses in the cable, both I2R and dielectric, and thermal coupling between heat-producing components and ambient temperature. The ampacity calculations are extremely complex. This is due to many considerations, some examples of which are heat transfer through the cable insulation and sheath, and, in the case of underground installations, heat transfer to duct or soil as well as from duct bank to soil. Other considerations include the effects of losses caused by proximity and skin effects. In addition, depending on the installation, the cable-shielding system may introduce additional losses. The analysis involves the application of thermal equivalents of Ohm’s and Kirchoff’s laws to a thermal circuit.
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6T- Key Aspects of High Voltage Industrial Network Design$90.00Learn MoreKey Aspects of High Voltage Industrial Network Design
In “Key Aspects of High Voltage Industrial Network Design” course, you'll learn...- -Needs and main constraints to be met
- -Constraints linked to the industrial process
- -Constraints linked to the electrical process
- -Constraints imposed by the utility electrical power distribution network
- -Main rules of industrial network design
- -Reactive power compensation
- -Backup and replacement sources
- -Autonomous electrical energy production
- -Choice of the earthing system
- -Insulation coordination analysis
- -Protection system definition
- -Choice of motor starting method
- -Network dynamic stability
- -Choice of optimal network structure and operation
- -Standard network structures
Overview Faced with increasingly furious competition, manufacturers need to enforce highly rigorous management and their manufacturing facilities need to be highly available. Electrical networks provide the energy needed to operate the production facilities. The provision of an uninterrupted power supply to loads is strived for from the start of the network design, especially during preliminary design of the single line diagram. Reductions in electrical installation and operating costs, together with reliable uninterrupted operation, are key profitability conditions. This technical and economic optimization asks for comprehensive preliminary assessment that includes:
-Specific requirements and constraints related to the industry type,
-Integration of the limits and constraints of the public distribution network,
-Standards and local regulations,
-Particularities of the operating staff, facilities manager and maintenance staff.
The scope of this course is limited to the assessment involved in the design of High Voltage (HV) high power industrial networks which have the following main characteristics:
-Total capacity in the 10 MVA range,
-Autonomous electrical energy generation,
-Power supplied by a national transmission or distribution network,
-Private Medium Voltage (MV) electrical distribution
This course is suitable for electrical engineers with a desire to understand the fundamentals of designing high voltage industrial network electrical systems. Course includes details about various system constraints, reactive power compensation, autonomous power production, choice of the grounding system, insulation coordination analysis etc. Upon successful completion engineers will be able to understand and consider important aspects when designing high voltage industrial networks. -
6T- How to Measure Ground Resistance and Optimize Grounding Grid$90.00Learn MoreThis course is suitable for engineers with a desire to understand the fundamentals of earthing resistance measurements. Presented details cover issues related to different measurement methods including two and three point measurement method, fall of potential method, touch potential measurements, ground grid integrity measurements, etc. Upon successful completion engineers will be able to understand theory and practical ground resistivity measurement methods which will provide a solid understanding for further engineering work.
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