Switching, Protection and Distribution in Low-Voltage Networks This book is not only intended for use by planners and designers of low-voltage switchboards, distribution boards and control systems. It will also provide a valuable source of general information and reference on the application and operation of low-voltage devices for the technically trained reader. Detailed selection guidelines as well as many project planning examples and suggested circuit configurations assist the reader in finding technically and economically optimized solutions to his application problems. Reference is made to a great number of relevant national and international standards and specifications. Summary of Contents Specifications for low-voltage devices and switchgear assemblies Network data and duty types Selection criteria for low-voltage switchgear in main circuits Selection criteria for low-voltage switchgear in auxiliary circuits Installation, operation and maintenance of low-voltage switchgear Transducing sensors and signal processing systems Type-tested switchgear assemblies (TTA) Fundamental circuit diagrams 2nd edition, 1994In star-delta starting of three-phase asynchronous motors, the starting current is reduced to 1/3 of the direct -on-line starting current. ... where the load torque remains low during the starting sequence, it does happen occasionally that star delta starters are used incorrectly. ... be achieved by the use of the correct wiring diagram for the main circuit (refer to the basic circuit diagrams in Section 8.3, page 444).
|Title||:||Switching, protection and distribution in low-voltage networks|
|Author||:||Petra Belzner, Siemens, Jan Dommisse|
|Publisher||:||Wiley-VCH - 1994-11-29|