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Facility Connection RequirementsMay 1, 2005

and NERC upon request. Test reports as outlined in the maintenance program are to be made available for review by FPL-NED.  At intervals described in the documented maintenance program and following any apparent malfunction of the protection equipment, the entity shall perform both calibration and functional trip tests of its protection equipment as outlined in the NPCC document A-4.  

I. P.  Metering

All metering and telemetering design, installations and maintenance shall be performed in accordance with ISO-NE Operating Procedures: Number 18 – Metering and Telemetry Criteria, Number 2 – Maintenance of Communications, Computers, Metering, and Computer Equipment.

Power for SCADA or metering communication equipment, if needed, is to be provided by the station battery.  Office power systems and switching networks are not acceptable.

I. Q. Supervisory Control and Data Acquisition (SCADA)

All SCADA design, installations and maintenance shall be performed in accordance with ISO-NE Operating Procedures: Number 18 – Metering and Telemetry Criteria, Number 2 – Maintenance of Communications, Computers, Metering, and Computer.

Power for SCADA or metering communication equipment, if needed, is to be provided by the station battery.  Office power systems and switching networks are not acceptable.

I. R.  Ferroresonance

Ferroresonance occurs on the power system under certain system configurations that may damage high voltage equipment.  This phenomenon is usually caused when PT’s are tied to a bus or line stub that may be energized through breakers having capacitors in parallel with the main contacts.  Since interconnection facilities may contain shared equipment, such as metering PT’s and high voltage breakers, care should be used to avoid configurations that could cause ferroresonance. Where such configurations cannot be avoided, detailed studies must be performed prior to installation to ensure ferroresonance will not occur.   

I. S.  Future Modifications

Any changes that affect an interconnection must be reviewed in advance.  These include modifications to the metering or protection scheme as well as associated settings after the interconnection project has been completed.  Information about expected increased load flows or higher fault current levels due to system changes must be provided in a timely manner. Some modifications may require engineering studies and a formal review by ISO-NE pursuant to

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