The deterioration of low voltage circuit breaker is normal and this process begins as soon as the circuit breaker is installed. If deterioration is not checked, it can cause failures and malfunctions. The purpose of an electrical preventive maintenance and testing program should be to recognize these factors and provide means for correcting them. A …
Siemens Wind Turbine SWT-2.3-82
The SWT-2.3-82 turbine is the classical workhorse for utility-scale wind turbine projects, designed on the basis of our unique experience from more than 25 years of leading-edge design and construction of wind turbines. The turbine represents the best of the qualities for which we are known throughout the wind industry – an efficient and reliable …
Happy Holidays
With 2010 behind us, EEP wishes a very safe and warm new year to you and yours. Even in a very slow economic environment we at EEP have grown, mainly thanks to you. Increasing publishing, visits, readings and importance to all the relationships we share in business with you our members and visitors. We wish …
Energy Efficency In Hospitals – Lighting (part 5)
Lighting is one of the large energy consumers in hospitals, just as in many other kinds of utility buildings. Various studies have shown that some 20% of the total energy consumption in a hospital is accounted for by the lighting installation. When it comes to the energy savings that can be made on lighting, these …
Advantages Of IEC 61850
One of the significant challenges that substation engineers face is justifying substation automation investments. The positive impacts that automation has on operating costs, increased power quality, and reduced outage response are well known. But little attention is paid to how the use of a communication standard impacts the cost to build and operate the substation. …
Energy Efficency In Hospitals – Steam (part 4)
Steam is used a great deal in hospitals: it permits high energy densities and enables large amounts of energy to be moved around easily. Steam can easily be generated from water, which is present everywhere in large quantities. Furthermore, steam installations are relatively easy to regulate. Steam is used for many applications in hospitals, including …
Energy Efficency In Hospitals – Compressed air
Compressed air is an essential form of energy for a hospital. Depending on the requirements it can be divided into: – Medical compressed air and – Technical compressed air Medical compressed air Medical compressed air has many uses in a hospital. Examples include assisted respiration for patients and driving surgical tools. Very strict requirements are …
Substation Fire Protection
The risk of fire in substations has been historically low, but the possible impacts of a fire can be catastrophic. Fires in substations can severely impact the supply of power to customers and the utility company’s revenue and assets. These fires can also create a fire hazard to utility personnel, emergency personnel, and the general …
Energy Efficency In Hospitals – HVAC (part 2)
In the following chapters we look at a number of case studies for energy saving options. These are subdivided into the following areas: – HVAC – Compressed air – Steam – Lighting – Cogeneration For each of these areas we first give a general explanation, followed by some practical examples taken from various studies carried …
Energy Efficency In Hospitals (part 1)
The great majority of the energy used within a hospital is purchased from outside in the form of natural gas and electricity. A small proportion is bought in as diesel oil. The energy bought in is converted by a number of conversion systems into the most important internal flows of energy, namely heat, cold, electricity …
