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Total: 33 results found.

End-user electricity consumption meters often underestimate the power consumed by the electronic equipment.  ...
Despite the hype given to solar energy development, Shanghai Electric Group, China's largest power generating equipment maker, has remained steadfast in getting out of the sector, which it deems as unprofitable, ...
Despite the hype given to solar energy development, Shanghai Electric Group, China's largest power generating equipment maker, has remained steadfast in getting out of the sector, which it deems as unprofitable, ...
Beijing - German electronics giant Siemens AG on Wednesday said it had won a 38-million-dollar contract to supply advanced power transmission equipment to China's second-largest hyro-electric plant. Siemens ...
... power metering equipment that can tell when an air conditioning filter needs to be changed or whether a freezer door has been left open.  ...
HONG KONG, April 20 (Reuters) - Shanghai Electric Group , China's top power equipment maker, said trading in its shares was suspended on Monday pending a statement on the potential issue of new securities. ...
DENVER (AP) - Xcel Energy's request to increase rates to recoup $159.3 million spent on power plants and equipment is drawing fire from an activist and the state's consumer counsel.  ...
8. Earth Fault-Loop Impedance Part 2
(References/Tutorials)
... there will be no means of protective device will provide protection against touch voltage. At the location of the fault, there is a possibility that the full voltage is present in the equipment enclosure ...
9. Earth Fault-Loop Impedance Part 1
(References/Tutorials)
... or hand-held Class I equipment; or portable equipment intended for manual movement during use. 5 s for other circuits where it can be shown that people are not exposed to touch voltages that exceed ...
10. Power Factor Correction - Tutorial
(References/Tutorials)
... leads to a high system loss. On the hand, plant with high power factor are given incentive discounts on the billing which will make any investment on a power factor correction equipment viable. To illustrate ...
Type test (design test) is defined as the series tests which are made upon the completion of the development of a new equipment design to establish representative performance and to demonstrate compliance ...
Selecting the right equipment to perform the right task during design is a tedious job. A very good example is the variable speed drive (VSD) versus Soft Starter(SS). On low capacity drives ( ...
... to minimize damage to the system components, and to limit the extent and duration of service interruption whenever equipment failure, human error, or adverse natural events occur on any portion of the ...
... vs. ungrounded systems are discussed. Information is given on how to ground the system, where the system should be grounded, and how to select equipment for the ground of the neutral circuits. Connecting ...
15. Low Voltage Switchgear And Controlgear
(References/Specifications)
... 2.1 General The electrical equipment and installation shall conform in design, materials and performance, except where otherwise specified, with the current issue and amendments of the Codes and Standards ...
16. Liquid Immersed Power Transformers
(References/Specifications)
... intended for use on the PCO OIL Projects in Iraq. 2. CODES AND STANDARDS 2.1 General The electrical equipment and installation shall conform in design, materials and performance, except where otherwise ...
17. High Voltage Induction Motors
(References/Specifications)
... 2. CODES AND STANDARDS 2.1 General The electrical equipment and installation shall conform in design, materials and performance, except where otherwise specified, with the current issue and amendments ...
18. High Voltage Switchgear
(References/Specifications)
... 2.1 General The electrical equipment and installation shall conform in design, materials and performance, except where otherwise specified, with the current issue and amendments of the Codes and Standards ...
19. Lightning protection
(News/Latest)
... of individual return strokes that transfer significant electrical charge usually from the cloud to earth. Lightning protection is essential for buildings, transmission lines, and electrical equipment from ...
20. Look Up and Live
(News/Blog)
... were installed with your work area. Assume alive until proven dead Do not attempt to work on any live electrical equipment unless proven to be dead by a qualified person. If you don't know ask Asking ...
21. Power System Analysis - Part 2
(References/Tutorials)
... icons, etc. But as I started using it, I came to know that the few icons appearing in the tool bar can simlulate several equipment. The results are actually comparable to ETAP. If you have started ...
Short circuit calculation plays a very important role in determining the ratings of electrical equipment. Using software has the advantages, however, to ensure that the software results are correct, hand ...
23. Voltage Drop Calculation - Part 2
(References/Tutorials)
... of what you have already done or currently doing in your design. We shall be presenting an IEC standard equipment in our sample calculation. A 120 mm2 3core XLPE insulated cable 120m in length ...
24. Earthing and Bonding
(News/Latest)
... fault will occur inside a piece of equipment such as a switchboard or motor that causes a conductor to touch the casing or frame. In most power systems this type of fault would cause a much larger than ...
25. Standards and Certification
(Standards News/General)
... the event of accident involving the product. The value to the general public at large, of standardisation is the improved reliability of the equipment around them, giving longer uninterrupted service ...
26. IEC 60079 - General Requirements
(Standards News/IEC)
... standard result from an ignition hazard assessment made on electrical equipment. The ignition sources taken into account are those found associated with this type of equipment, such as hot surfaces, mechanically ...
27. Classification of Hazardous Areas
(Standards News/IEC)
... each item of process equipment which contains a flammable material, and which could therefore be a source of release. In particular, zone 0 or zone 1 areas should be minimized in number and extent ...
28. To be or not to be
(News/Blog)
... (FEED). Variations in detailed design is normal only if particular details are not achievable due to change in process, equipment design, environmental conditions, or any standards. However, variations ...
29. IEC 60364 and ANSI/NFPA 70
(Standards News/General)
... of premises wiring systems and equipment. Applicable to wiring systems of premises for residential, commercial, and industrial use. Hazardous locations (explosive atmospheres) are covered only in the ...
30. Ingress Protection
(Standards News/IEC)
IP Rating Chart IEC 50529 applies to the classification of protection provided by enclosures for electrical equipment with a rated voltage not exceeding 72.5kV.While this system is suitable for use ...
31. Merging Standards
(Standards News/General)
... or merger. The same is true with US manufacturers. Despite the efforts of equipment manufacturers to satisfy both IEC and NEMA standards, the merging of standards in the construction sector may be a nightmare. ...
32. Grounding of Power Systems
(References/IEEE)
... grounded versus ungrounded systems are discussed. Information is given on how to ground the system, where the system should be grounded, and how to select equipment for the grounding of the neutral circuits. ...
33. Specifications
(Category)
Sample specifications of commonly used electrical equipments ...

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