Facility Connection RequirementsMay 1, 2005
All synchronous generators connected to the FPL-NED transmission system must maintain a network voltage or reactive power output as specified by ISO-NE. Generating equipment owners shall maintain a log which records the date, time, duration, and reason for not meeting the network voltage schedule or desired reactive power output when operating in parallel with the FPL-NED system. Generating equipment owners shall make this log available to FPL-NED on request.
The generator step-up and auxiliary transformer tap settings shall be coordinated with ISO-NE.
The AVR's control and limiting functions must coordinate with the generator's short time capabilities and protective relay settings. The generating equipment owner shall provide FPL-NED with the AVR's control and limiter settings as well as the protection settings which coordinate with AVR control and limiting functions.
The installation of new generating plants has the potential to aggravate existing modes of oscillation or create new modes. All new synchronous generators connected to the FPL-NED transmission system with a nameplate rating greater than 100 MVA shall be equipped with a power system stabilizer. Technical evaluations of oscillatory stability will be conducted for the interconnection of new generating plants. New generators that cause a decrease in the damping of an existing mode of oscillation or cause a poorly damped mode of oscillation will be required to operate with the power system stabilizer in service. The determination of the power system stabilizer’s control settings will be coordinated with FPL-NED and ISO-NE. Typically this coordination would be to provide FPL-NED with preliminary power system stabilizer settings prior to the stabilizer’s field commissioning tests with the final settings provided after the field commissioning tests.
Where stabilizing equipment is installed on generating equipment for the purpose of maintaining generator or transmission system stability, the generating equipment owner is responsible for maintaining the stabilizing equipment in good working order and promptly reporting to FPL-NED any problems interfering with its proper operation.
All new synchronous generators connected to the FPL-NED transmission system with a nameplate rating greater than 20 MVA shall be equipped with a speed/load governing control that has a speed droop characteristic in the 3 to 6% range. The preferred droop characteristic setting is 5% as this is the typical setting for generators. Notification of changes in the status of the speed/load governing controls must be provided to the FPL-NED and ISO-NE as detailed in Appendix 2.
II. G. Generator Testing
Prior to commercial operation, the generating equipment owner shall provide FPL-NED with open circuit, step-in voltage test results. Recording of generator terminal voltage and field voltages shall be clearly labeled so that initial and final values can be identified in physical