Cables
4 ways in which noise can enter a signal cable and its control – Part 2
Continued from part 1… Read here. In previous part of this technical article, I wrote about electrical noise occurs or is transmitted into a signal cable system in the following four ways: Galvanic (direct electrical contact) – part 1 Electrostatic… Read more
Sep 15, 2014 | By Edvard Csanyi
Energy and Power
Maintenance Management Of Electrical Equipment (Condition Monitoring Based) – 5
In case of new industry, it would be easy to implement Condition Monitoring based Maintenance Management (CDM) as apart of respective equipment or system itself after evaluating various factors discussed in previous part 4 of article. The new industry may also take… Read more
Sep 12, 2014 | By Ashok Parikh
Energy and Power
14 terms of particular importance when discussing arc flash hazards
Electrical arcs form when a medium that is normally an insulator, such as air, is subjected to an electric field strong enough to cause it to become ionized. This ionization causes the medium to become a conductor which can carry current. The… Read more
Sep 10, 2014 | By Edvard Csanyi
Cables
4 ways in which noise can enter a signal cable and its control
Noise, or interference, can be defined as undesirable electrical signals, which distort or interfere with an original (or desired) signal. Noise could be transient (temporary) or constant. Unpredictable transient noise is caused, for example, by lightning. Electrical noise occurs or… Read more
Sep 08, 2014 | By Edvard Csanyi
Energy and Power
Maintenance Management Of Electrical Equipment (Condition Monitoring Based) – 4
Read previous parts of this serie – Part 1, Part 2 and Part 3 After deciding to go for the implementation of CDM based on evaluation of various factors discussed in foregoing points and other factors, if any, as per the company policy,… Read more
Sep 05, 2014 | By Ashok Parikh
Energy and Power
Rating Definitions Applied to Medium Voltage Circuit Breaker
The medium voltage circuit breaker is the device of choice when sophisticated system protection at the medium voltage level is required. Most modern medium voltage circuit breakers use a vacuum as the interrupting means, although sulfur-hexafluoride (SF6) based units still exist and in use. Medium… Read more
Sep 03, 2014 | By Edvard Csanyi
Energy and Power
Maintenance Management Of Electrical Equipment (Condition Monitoring Based) – 3
It is beyond the scope of this technical article to discuss the development of performance and dependability models for analysis, assessment and justification of CDM program. The scope is kept limited to some basic issues that should be taken into… Read more
Sep 01, 2014 | By Ashok Parikh
Energy and Power
5 Key Elements of Your Electricity Bill
Electricity is a powerful form of energy that is essential to the operation of virtually every facility in the world. It is also an expensive form of energy that can represent a significant portion of a manufacturing facility’s cost of production. This… Read more
Aug 29, 2014 | By Edvard Csanyi
Energy and Power
Maintenance Management Of Electrical Equipment (Condition Monitoring Based) – 2
Continued from the first part of this technical article… Read it here. The concept of “Predictive Maintenance Management (PDM)” is not new. PDM program is the maintenance program drawn out for the electrical equipment based on regular monitoring of the… Read more
Aug 27, 2014 | By Ashok Parikh
Energy and Power
Maintenance Management Of Electrical Equipment (Condition Monitoring Based)
In today’s competitive market scenario, all types of industries are under tremendous pressure to cut down their maintenance costs, as they form a significant portion of the operation costs. The industries are forced to look for different types of maintenance… Read more
Aug 25, 2014 | By Ashok Parikh
Energy and Power
10 most common power disturbances that make our life difficult
As you know, deviation from sinusoidal form at the nominal voltage level is actually a power quality issue or power disturbance, defined as “any deviation from the nominal value (or from some selected thresholds based upon tolerance) of the AC… Read more
Aug 22, 2014 | By Edvard Csanyi
Electrical Lectures
The choice of system voltage according to ANSI standard C84.1
The selection of system voltages is crucial to successful power system design. Reference lists the standard voltages for the United States and their ranges. The nominal voltages are given in Table 1 below. As can be seen, ANSI C84.1-1989 divides system… Read more
Aug 20, 2014 | By Edvard Csanyi
Energy Efficiency
An example of calculating the number of indoor lighting fixtures
These are the input data for the following calculation: An office area has length: 20 meter; width: 10 meter; height: 3 meter. The ceiling to desk height is 2 meters. The area is to be illuminated to a general level… Read more
Aug 18, 2014 | By Jignesh Parmar
Energy and Power
5 most common critical power distribution topologies
In many of today’s mission-critical applications, ever-increasing reliability requirements are the norm. A critical part of this reliability is the reliability of the electric power distribution system for a given facility. Among the most demanding applications is that of a… Read more
Aug 15, 2014 | By Edvard Csanyi
High Voltage
Main and Transfer (Inspection) Bus Arrangement commonly used in AIS
The main and transfer bus configuration connects all circuits between the main bus and a transfer bus (sometimes referred to as an inspection bus). Some arrangements include a bus tie breaker and others simply utilize switches for the tie between… Read more
Aug 13, 2014 | By Edvard Csanyi
