![]() ![]() Ĭonsideration should be given to the heating effects of the electrical circuits.Īll equipment should be properly insulated.The following general guidance applies to the design and operation of electrical devices (single-line/ one-line diagrams are discussed in Chapter 1: Safety in Design): In principle, the same situation and adjustments characterise the phase co-ordinate load-flow analysis Several existing conventional (one-line diagram) load-flow programs already allow the generator terminal voltage magnitude to be unknown and to be adjusted according to the voltage value of a remote-controlled bus-bar. At generator bus-bars where a P| V| specification is given, the value of P is the total active power output of the machine and | V| can be either E a or V p or any other controlled bus-bar voltage. By any of the usual load-flow techniques these equations can then be solved iteratively. To a first approximation the term y N0| V N| 2/ E * a can be neglected in comparison with the magnitude of the term Σ S * / E a *.įor each generator the machine admittance matrix Y abc can be added to the polyphase admittance matrix representing the network of lines, transformers and admittance loads. *A one-year SkillGRID subscription is required for all new users, billed at $12/year.( − y 1 − y 0 Y a b c − α 2 y 1 − y 0 − α y 1 − y 0 − y 1 − α y 1 − α 2 y 1 3 y 1 0 − y 0 − y 0 − y 0 0 ( 3 y 0 + y N 0 ) ( V p V q V r E a V N ) = ( I p I q I r Σ S * / E a * + y N 0 | V N | 2 / E * a 0 ) Identify isolation breakers in a single-line diagram.Identify loads in a single-line diagram.Identify symbology in a single-line diagram.Identify voltage conventions in a single-line diagram. ![]() Explain the purpose of single-line diagrams.This lesson presents information regarding how to identify loads, equipment, and isolation breakers on a single-line electrical diagram. This is the seventh lesson in the Electrical Print Reading Course. The eight lessons in this course present general information about electrical schematics and electrical diagrams showing and explaining how to read and interpret the symbols on an electrical schematics and electrical diagrams. This course was designed to provide training for electricians, mechanics, and others, wanting to know more about electrical print reading. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |