Low Voltage
Design of primary and secondary power distribution in car manufacturing plants (BMW, VW…)
When power supply systems for car manufacturing plant are planned, each individual problem can be faced in various ways: by means of technical solutions that feature specific technical advantages. This means that both a thorough knowledge of the relevant industrial… Read more
May 30, 2018 | By Edvard Csanyi
Medium Voltage
The Most Important Tests For Medium Voltage Metal-Enclosed Switchgear (You SHOULD Perform)
The design of the insulation system for metal-enclosed switchgear is based upon life expectancy of about 30 years. However, environmental conditions such as dirt, moisture, and corrosive atmosphere can shorten the design life. Moisture combined with dirt is the greatest… Read more
Mar 28, 2018 | By Edvard Csanyi
Medium Voltage
Design and Installation of Medium Voltage Switchgear (Facts You MUST Know)
When specifying and planning medium voltage switchgear for a substation, functions and influencing factors must be matched and an economically efficient solution must be found among the offerings of manufacturers. For this there is no simple recipe with an unambiguous… Read more
Mar 26, 2018 | By Edvard Csanyi
High Voltage
Circuit configurations (single line diagrams) for HV and MV switchgear installations
The starting point for planning a switchgear installation is its single line diagram. This indicates the extent of the installation, such as the number of busbars and branches, and also their associated apparatus. The most common circuit configurations of high… Read more
Jan 22, 2018 | By Edvard Csanyi
Medium Voltage
How to specify real service conditions for LV/MV equipment inside a substation
The various service conditions for the MV equipment inside substation are linked to the design of the installation, the design of the operating room, the site and the application surrounding the installation, and finally, the seasons. The combination of these… Read more
Sep 13, 2017 | By Edvard Csanyi
High Voltage
Main circuit breaker types from 1000 V MCB to 1000 kV dead tank breaker
This technical article discusses two important circuit breaker classifications – by voltage level (from low to medium and high voltage) and secondly by technology (extinguishing method or medium that insulates the breaker contacts. Contents: Voltage levels of circuit breakers: High… Read more
Sep 06, 2017 | By Edvard Csanyi
Energy and Power
MV network diagrams for feeding secondary switchboards and MV/LV transformers
Let’s take a look at the main MV network diagrams and structures used to feed secondary switchboards and MV/LV transformers. The complexity of the diagrams differs, depending on the level of power supply security required. Note that there are many… Read more
Aug 04, 2017 | By Edvard Csanyi
Medium Voltage
The basics of capacitor banks protection
As you already know, capacitor banks are normally used in medium voltage networks to generate reactive power to industries etc. Capacitor banks are, almost always, equipped with a series reactors to limit the inrush current. Harmonic filters, for thyristor controlled… Read more
Jul 07, 2017 | By Edvard Csanyi
Energy and Power
System earthings and incidents on MV side that result in LV disturbances
Low voltage networks, unless a replacement uninterruptible power supply (with galvanic insulation) or a LV/LV transformer is used, are influenced by MV. This influence takes the form of: capacitive coupling, galvanic coupling and common impedance. And the reasons for influences are: Capacitive… Read more
Jun 30, 2017 | By Edvard Csanyi
High Voltage
Three abnormal situations leading to an uncontrolled release of SF6 gas
This technical article deals with the assessment of risk to personnel in the case of an abnormal situation leading to an uncontrolled release of SF6 gas into the atmosphere. Generally , such situations occur very infrequently and are very rare…. Read more
Jun 28, 2017 | By Edvard Csanyi
Energy and Power
4 medium voltage switching equipment for primary substation installations
This technical article covers the medium voltage switching equipment intended mainly for primary substation installations. The target is to give some basic knowledge and difference between four main piece of MV switching equipment, especially in the view of distribution automation… Read more
May 22, 2017 | By Edvard Csanyi
Energy and Power
Protection of capacitor banks by fuses during energization and operation
Stress specific to the protection of capacitor banks by fuses, which is addressed in IEC 60549, can be divided into two types: Stress during bank energization (the inrush current, which is very high, can cause the fuses to age or blow) and Stress… Read more
May 01, 2017 | By Edvard Csanyi
Energy and Power
Circuit breaker selections for low voltage installation (with discrimination)
The LV installation which forms the subject of this study is shown in figure 1 above. This study includes discrimination and coordination of protection between the LV equipment and the protection located upstream of each MV/LV power supply transformer. The… Read more
Apr 14, 2017 | By Edvard Csanyi
Medium Voltage
The analysis of four network schemes in terms of reliability and protection
Before sizing an electric network, the single-line diagram of the electric network must be defined on the basis of: Load – it is considered fundamental to establish the true user and service requirements these are destined for, in terms of quality, availability… Read more
Mar 24, 2017 | By Edvard Csanyi
Energy and Power
Single line diagrams of emergency and standby power systems with automatic transfer switch (ATS)
Emergency and standby power systems are generally designed into the over-all electrical system for one of the following two reasons: Legal Requirements – As required by the NEC, NFPA 101, NFPA 99 and other local, state, and federal codes and requirements…. Read more
Feb 03, 2017 | By Edvard Csanyi
