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# Electrical Distribution System Analysis

IIT Roorkee, , Prof. Prof. G. B. Kumbhar

Updated On 02 Feb, 19

##### Overview

The structure and load patterns of a power distribution system are significantly different than transmission system. In addition, distribution systems are transitioning from passive to active with the adoption of distributed generation, storage, and smart-grid technologies. Therefore, the analysis tools developed for a transmission system will not be directly applicable to a distribution network. This course shall introduce the modeling of the components (feeders, distribution transformer, regulators, capacitors, loads, distributed generation, storage, etc.) and analysis methods (load flow, short-circuit, etc.), specially developed for the distribution system.

## Lecture 34: Sequence Component Based Short Circuit Analysis

4.1 ( 11 )

### COURSE LAYOUT

Week 1: Structure of a distribution system
1.1.Distribution feeder configurations and substation layouts
1.2.Nature of loads
Week 2: Approximate methods of analysis
2.1.Computation of transformer and feeder loading
2.2.K Factors, voltage drop and power loss calculations
2.3.Distribution of loads and various geometric configurations
Week 3, 4, 5: Modeling of distribution system  components
3.1.Overhead lines, feeders and cables
3.2.Single and three phase distribution transformers
3.3.Voltage regulators
3.4.Load models
3.5.Capacitor banks
3.6.Distributed generation
Week 6, 7, 8: Distribution system analysis
4.1.Load flow analysis: Backward/forward sweep
4.2.Load flow analysis: Direct approach
4.3.Load flow analysis: Direct approach for weakly meshed systems
4.4.Load flow analysis: Gauss Implicit Z-matrix Method
4.5.Short-circuit analysis: Sequence-components vs. phase-variable
4.6.Short-circuit analysis: LG, LLG, LLLG, and LL Faults
4.7.Short-circuit analysis: Weakly meshed system
4.8.Applications of distribution system analysis

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###### Comments

Sam

Excellent course helped me understand topic that i couldn't while attendinfg my college.

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Dembe

Great course. Thank you very much.

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