Top six solutions to achieve a high level of energy efficiency in buildings
Energy efficiency in commercial buildings involves providing a given level of performance, cost, quality, availability, and comfort at a minimal level of energy usage throughout the lifecycle of a given… Read more
Mar 27, 2017 | By Edvard Csanyi
Voltage drop calculation methods with examples explained in details
The first consideration for voltage drop is that under the steady-state conditions of normal load, the voltage at the utilization equipment must be adequate. In addition to steady-state conditions, voltage… Read more
Mar 03, 2017 | By Edvard Csanyi
Measurement of N–PE loop resistance in TN, TT and IT systems
Up-to-date test instruments, with built in modern electronics, can measure loop resistance even between the neutral N and protection PE conductors in spite of possible high currents in the neutral… Read more
Feb 24, 2017 | By Edvard Csanyi
Detailed calculation of currents and power according to the type of load
Currents and power analysis are key factors in any design or redesign of an installation they will enable the source(s) to be sized according to the purpose of the installation,… Read more
Feb 13, 2017 | By Edvard Csanyi
Four typical designs for connecting generator set(s) to the low voltage system
Many different system designs are possible, but for highest reliability, systems are typically configured so that generator set(s) are connected at low voltage, with the minimum number of transformers and… Read more
Feb 08, 2017 | By Edvard Csanyi
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,… Read more
Feb 03, 2017 | By Edvard Csanyi
9 rules for correct cabling of the Modbus RS485 communication systems
The cabling of the industrial communication systems (Modbus RS485) is different in some ways from the cabling used for power cabling and the electrician may experience some difficulties if he is not… Read more
Dec 07, 2016 | By Edvard Csanyi
Shaping and connecting rigid busbars in low voltage switchgear
The busbars constitute the real “backbone” of every low voltage switchgear. The main busbar and branch busbars supply and distribute the energy. Creating busbars generally involves machining, bending and shaping… Read more
Dec 05, 2016 | By Edvard Csanyi
Protection from fault current by automatic power supply disconnection
The use of protective conductors linking all the exposed conductive parts of all equipment creates a circuit called the “fault loop” designed for circulation of the fault current that arises… Read more
Nov 21, 2016 | By Edvard Csanyi
Installation tips for prefabricated busbar systems and cables
The term installation configuration, when applied to prefabricated busbar systems and cables – power transport and power distribution in the installation, essentially refers to the geometric requirements of the conductor… Read more
Nov 14, 2016 | By Edvard Csanyi
6 lockout operations every electrician MUST perform and respect
The lockout operations or safety procedures are precisely and clearly defined operations, the aim of which is always to ensure that situations are, and remain, safe. This will enable people… Read more
Nov 07, 2016 | By Edvard Csanyi
Advice how to calculate the power loss inside the low voltage switchboard
In order to give the necessary indications on the methods intended to calculate power loss and improve the current carrying capacity of the circuit breakers inside LV switchboard, first of… Read more
Sep 30, 2016 | By Edvard Csanyi
7 typical layout designs of 11kV indoor distribution substation
The following layout designs of indoor distribution substation are typical only and should not be used as construction drawings as they are presented as an example. Some designs achieve minimum… Read more
Sep 26, 2016 | By Edvard Csanyi
What a ground fault circuit interrupter does and what it does not do
A ground fault circuit interrupter (GFCI) monitors the current balance between the ungrounded “hot” conductor and the grounded conductor. As soon as the current flowing through the “hot” conductor is in… Read more
Sep 09, 2016 | By Edvard Csanyi
Breaking of a short circuit current in a direct current system
Direct current presents different problems than alternating current with aregard to the phenomena associated to the breaking of a short circuit current and interruption of other types of high value… Read more
Aug 29, 2016 | By Edvard Csanyi