The range of subjects embraces the whole area of electrical installation engineering: Power supply and distribution systems, including the calculation of short-circuit currents, design of system protection, selection of high-voltage and low-voltage equipment and system components, cables, meters, standby power-supply systems, powerfactor correction, lighting, space heating, air conditioning and ventilation. In addition, the planning and design of wiring systems for large buildings and outdoor installations, including all special equipment and systems, such as, for example, telecommunications, time distribution and fire alarm systems, are described, together with the electronic control, indication and monitoring systems which are being applied on an ever-increasing scale. The book ends with a guide to the installation specifications and safety measures which need to be observed in the planning and installation of electrical power distribution systems.3.3 Current-operated earth-leakage circuit breakers The current-operated earth- leakage circuit breaker (e.l.c.b.) consists essentially of ... 3.3/1). If there is no fault in the system protected by the circuit breaker, the magnetic Mode of operation effects in the current transformer of the ... winding which causes the affected circuit to be disconnected (through the release, the breaker mechanism and the contacts).
|Title||:||Electrical Installations Handbook|
|Author||:||Günter G. Seip|
|Publisher||:||Publicis - 1987-01|