X/R: Generator reactance to resistance ratio, which is used to determine resistance values in short circuit studies. This value is for reference only and does not affect analysis. RPM: Revolutions per minute of the machine. This value is for reference only and does not affect analysis.Įfficiency: Generator operating efficiency. Power Factor: Generator operating power factor. HG w/o A - Hydro generator without amortisseur winding (same as SP).SYN-SPA - Salient Pole with amortisseur winding.SYN-SP - Salient pole without amortisseur winding.This value is for reference only except for HG and SYN-SP types, which have their momentary reactances determined by X’dv. Generators may be represented as a group or individually. YG: Wye connection with grounded neutral ……įor wye-grounded connections, you can attach CTs or relays to the ground as shown in the figure below.įigure 2: Wye-grounded Connections Specifications This affects the symbol of the generator in the one-line. For your reference, the To Bus base kV is displayed next to the bus name.Ĭonn: This specifies the type of connection of the generator windings. You must be careful that the To Bus has approximately the same base kV as the generator. To Bus: The bus to which the generator connects, which must already exist on the one-line. The names default to GEN-1, GEN-2, GEN-3, and so on as you enter new generators on the one-line diagram, but you can change those names later if needed. This ID name is sometimes referred to as the generator name, and can be up to 12 characters long. ID Name: Uniquely identifies the generator. This dialog box includes the following areas and tabs:įigure 1: Generator Data Dialog Box Connection Information You are here: Database Technical Reference > Generator Data Generator Data