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TABLE OF CONTENTS
Introduction……………………………………… …………………..…... 3
MODULE 1. INTRODUCTION TO ELECTRICAL SUPPLY
SYSTEM INSTALLATION AND OPERATION
1 Organization of electrical
installation works
1.1 Introduction. General principles of electrical installation works.
Organization of electrical installation work...…………………….……….4
1.2 Planning electrical installation work. Preparing to perform electrical
installation work………………………………………...…………………7
1.3 Mechanization and industrialization
of electrical assembly
works………………………………………………………………………8
1.4. Preparation for electrical installation work…………………………..10
1.5. Mechanization and industrialization of electrical assembly
work……………………………………………………………………....12
2 Installation of overhead power lines.
2.1 Information about air lines…………………………………..………..17
2.2 Assignment of overhead lines. By intensity……….……………...….18
2.3 Preparation of overhead lines for assembly…………..………………19
2.4
Preparation of pit, foundation and supports....……….……………….19
MODULE 2. ASSEMBLY OF CONDUCTIVE PARTS AND THEIR
OPERATION
3 Installation of cable lines up to voltage up to 35 kV.
3.1 Information about power cables. Power cable types……………...….37
3.2 Preparation of cables for assembly……………………...………..…..39
3.3 Placement of cables in earthen tunnels.
Laying cables without
trenches………………………………………………………….….…….41
3.4 Placement of cables in trays and boxes. Placing cables on steel
ropes ……………………………………………………………………...47
MODULE 3. ASSEMBLY OF TRANSFORMERS AND THEIR
OPERATION
4 Installation
of power transformers
4.1 General information about transformers. Preparation work………….59
4.2 Storage of transformers and parts before assembly. Transformer
assembly………………………………………………………………….62
4.3 Installation of transformer cooling system and individual parts..........65
5 Installation of substation
switching devices
5.1 Separators. Splitter and short connectors..............................................71
5.2 General information about load breakers……….…………………....77
5.3 Installation of load breakers. General information about low-oil circuit
breakers…………………………………………………………………...78
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5.4 Installation of small oil circuit breakers. General information about
electric circuit breakers………………...…………………………….…...82
5.5 Installation of electrical circuit breakers.
Information about the
operation of circuit breakers……………………………………..……….83
5.6 Requirements for circuit breakers. Adjustment of the simultaneous
connection
and
disconnection
of
circuit
breaker
contacts
……………………………………………………………………………85
6 Installation of substation protection and measuring transformers
6.1 Measuring transformers…………………………...………………….90
6.2 Tube dischargers. Screw dischargers…………..…………….………92
6.3 Nonlinear surge arresters. Concrete reactors………………………...96
