1

Requirements of the Rules of Technical Operation of Electric Power Stations and Networks

1

1

2

Causes of damage to electrical installations. The degree of danger of ground faults depends on the efficiency of neutral grounding.

2

2

-

3

Single-phase earth faults in 6 - 35 kV distribution networks. Compensation of capacitive earth fault currents.

2

2

-

5

Main characteristics of networks with isolated neutral and capacitive current compensation

2

2

-

6

Arc extinguishing coils, their purpose, power selection and installation location

2

2

-

7

Switching circuits of arc-extinguishing coils and alarm systems

2

2

-

8

Preparing the network for switching on the arc-extinguishing coils

2

2

-

9

Selecting arc extinguishing coil settings

2

2

-

10

Measurements in networks operating with isolated neutral and current compensation

2

2

-

11

Programs for measuring capacitive currents of single-phase earth fault, unbalance voltage, neutral bias voltage

2

-

2

12

Method of measuring the direction of the asymmetry vector in air networks using the VAF-85 device

1

1

-

13

Example of calculating the network unbalance voltage and phase capacitance alignment.

2

-

2

14

Method for estimating the neutral bias voltage from the phase voltage skew in the 35 kV network

2

2

-

15

Standard instructions for compensation of the capacitive earth fault current in electrical networks of 6-35 kV. RD 34.20.179 (TI 34-70-070-87).

2

-

2

16

Actions of operational personnel in determining the location of a single-phase earth fault

2

2

-

17

Methods of fault detection - single-phase earth faults in a compensated 35 kV network

2

2

-

18

Methods of neutral grounding in 6 - 35 kV networks

2

2

-

19

Plunger arc-quenching reactors ZTC and ASR

2

2

-

20

Resistive neutral ground in 6 - 35 kV networks with SPE cables

2

2

-

TOTAL

36

30

6