The estimation of reliability parameters of stabilized DC voltage source in starting and nominal modes of the power circuit is presented in this paper. Some ways of reliability indices increase of a source have been a...
详细信息
The estimation of reliability parameters of stabilized DC voltage source in starting and nominal modes of the power circuit is presented in this paper. Some ways of reliability indices increase of a source have been analyzed and dependences of parameters of reliability are obtained at various ways of loaded and non-loaded redundancy.
The principles, if not the practice, involved in earthing an electrical system are the same regardless of the potential at which it operates. Earthing introduces hazards but allows fault currents to flow, which can be...
详细信息
ISBN:
(纸本)9780863418181
The principles, if not the practice, involved in earthing an electrical system are the same regardless of the potential at which it operates. Earthing introduces hazards but allows fault currents to flow, which can be used to operate protective devices. These can protect against shock, fire and burn by disconnecting the supply to the fault. Bonding reduces the potential between simultaneously accessible parts, usually without reducing the potential to true earth.
Modern tendencies of designing and developing strain gauges of force are considered. The prospect of application of modern information technologies and the computing methods raising efficiency of designing of gauges i...
详细信息
Modern tendencies of designing and developing strain gauges of force are considered. The prospect of application of modern information technologies and the computing methods raising efficiency of designing of gauges is shown.
In the article the basic problems interfering evolution of automatic-control systems by process ultrasonic welding are analyzed, measurements electric parameters of ultrasonic oscillatory system during welding thermop...
详细信息
In the article the basic problems interfering evolution of automatic-control systems by process ultrasonic welding are analyzed, measurements electric parameters of ultrasonic oscillatory system during welding thermoplastics, directed on search ways raise of strength a welded joint are executed.
My talk will cover the role of an HSE electrical inspector, a brief discussion of the legal requirements, how we assess compliance with these requirements, and then examine some recent incidents and the lessons arisin...
My talk will cover the role of an HSE electrical inspector, a brief discussion of the legal requirements, how we assess compliance with these requirements, and then examine some recent incidents and the lessons arising from these.
Voltage differences in earthing systems, both within and between equipotential zones, can be problematic for communications, information technology, and control systems. Surges from atmospheric conditions, high voltag...
Voltage differences in earthing systems, both within and between equipotential zones, can be problematic for communications, information technology, and control systems. Surges from atmospheric conditions, high voltage switching operations, etc., can damage equipment. This is especially true if the installation, and in particular the earthing provisions affecting both power wiring systems, and cabling for sensitive electronic systems, are not considered at the design stage. The concept of the "Ground Window" is a useful design tool for avoiding such issues. In addition, the concept has a place in analysing existing installations exhibiting behaviour where "earthing problems" are suspected.
暂无评论