O‘zbеkiston rеspublikasi oliy va o‘rta maxsus ta’lim vazirligi I. U. Raxmonov

Chapter 3
Electricity loading graphics of industrial enterprises 
and consumers and their key dimensions
35 
3.1. 
Electric charge graphs
35 
3.2. 
The main dimensions of the electric charge graphs
38 
Chapter 4 
Methods of calculating and assembling electrical supply 
systems
 
46 
4.1. 
Concept of account loading
46 
4.2. 
Basic methods of calculation loading 
51 
4.3. 
Auxiliary methods for determining the load
62 
Chapter 5
Schemes of sex networks with voltage up to 1000 volts
66 
5.1. 
Features of schemes used in sex networks
66 
5.2. 
Lighting schemes
70 
Chapter 6
Issues of reactive power compensation in the power 
supply system of industrial enterprises
78 
6.1.
 
The concept of reactive power. General issues of reactive 
power compensation
 
78 
6.2. 
Reactive power compensation methods. Natural and
artificial methods
82 
6.3. 
Reactive power supplies
85 
Chapter 7
Determination of the conditional center of loading loads 
and cartographies
96 
7.1.
 
The concept of cartogram. Electric installation cartogram.
Lighting industry
 
96 

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11 
7.2. 
General 
downstream 
station. 
Conditional 
electric 
installations center
99 
Chapter 8 
Transformers. selection of power and power 
transformers at substations
102 
8.1. 
Transformers and their types
102 
8.2. 
Selection of the number and power of transformers at 
substations
107