Energy and Power
General Requirements For Operation and Maintenance Of Battery Cells
Primary battery cells cannot be recharged and once their energy is depleted they should be disposed off in the manner recommended by the manufacturer. The cells should be examined occasionally during their life for signs of leakage or physical deformation…. Read more
May 11, 2016 | By Edvard Csanyi
Maintenance
How to better understand transformer failures and maintenance necessity
Generally speaking, the transformer requires less care compared to other electrical equipment. But, as I already stated in some of the earlier technical articles, transformer failures can cause a huge problem in power system, since it’s one of the most… Read more
Mar 30, 2016 | By Edvard Csanyi
Electric Motor
Regular Motor Maintenance To Avoid Failure (and Prolong Its Lifespan)
A well and carefully designed motor maintenance program, when correctly used, can be summed up as preventive maintenance, predictive maintenance and reactive maintenance. Inspection cycles depend upon the type of motor and the conditions under which it operates. Motors need… Read more
Feb 29, 2016 | By Edvard Csanyi
Maintenance
4 test instruments most frequently used by electricians
The test instruments and test leads used by the electrician for testing an electrical installation must meet all the requirements of the relevant regulations. The HSE has published Guidance Notes GS 38 (download below) for test equipment used by electricians…. Read more
Feb 03, 2016 | By Edvard Csanyi
Energy and Power
Connection Schemes For Testing Insulation Resistance Of Electrical Equipment
The following schemes show how to connect a Megger insulation tester to various types of electrical equipment. The schemes also show in principle how equipment must be disconnected from other circuits before the instrument is connected. These illustrations are typical and will serve… Read more
Nov 11, 2015 | By Edvard Csanyi
Energy Efficiency
Maintenance of electrical equipment in buildings
Apart from safety, maintenance is needed to keep plant in an acceptable condition. Maintenance of this kind must be reviewed on an economic and energy efficiency basis. While it is appreciated that breakdown of plant may result in costly interruption… Read more
Jul 08, 2015 | By Edvard Csanyi
Maintenance
Maintenance and testing of overcurrent protective devices
When designing electrical distribution systems, required maintenance and testing of the overcurrent protective devices is a very important consideration. The electrical system reliability, component and circuit protection, and overall safety are directly related to the reliability and performance of the… Read more
May 04, 2015 | By Edvard Csanyi
Maintenance
What to do if transformer has an excessive moisture content
The term “moisture” in the transformer industry is commonly used to indicate water which is absorbed in the paper or dissolved in the oil. Occasionally, the terms “water” or “water content” are used as an alternative way to describe the… Read more
Apr 24, 2015 | By Edvard Csanyi
Maintenance
Maintenance of transformer load tap changers (LTC)
LTC maintenance is the basis for the regulating transformer’s high level of reliability. The background for maintenance recommendations is as follows: Oil: For LTCs where oil is used for arc-quenching, the arcing at the arcing switch or arcing tap switch… Read more
Mar 25, 2015 | By Edvard Csanyi
Low Voltage
Degradation of Insulation in Switchgear (What’s Really Happening)
Electrical insulation is subjected to electrical and mechanical stress, elevated temperature and temperature variations, and environmental conditions especially for outdoor applications. In addition to normal operating conditions, there are a host of other factors that may trigger accelerated aging or… Read more
Mar 04, 2015 | By Edvard Csanyi
Low Voltage
Guidelines to maintenance of low voltage switchboard
A well-executed maintenance program can provide the following benefits: Longer life of switchboard and fewer replacements; Reduced time on repairs and overhauls, and the option of scheduling them at an opportune time; Fewer failures with unexpected outages; Timely detection of any… Read more
Oct 24, 2014 | By Edvard Csanyi
Energy and Power
Maintenance Management Of Electrical Equipment (Condition Monitoring Based) – 6
Read previous parts of this serie – Part 1 | Part 2 | Part 3 | Part 4 and Part 5 Proper Use of Predictive Technologies Merits and Demerits of CDM program Advantages Disadvantages CDM is more than maintenance Conclusion System components, such as circuit breakers, transformers,… Read more
Sep 24, 2014 | By Ashok Parikh
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
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
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
