4 FAQs about Operating Guidelines for 50kW Communication Cabinets for Transmission Nodes

What are the requirements for a connecting party facility at 100 kV?

A Connecting Party facility at 100 kV or greater shall have two independent relay schemes that are redundant providing high speed fault clearing for all zones of protection covering the 100 kV and above portion of the system.

What voltage should a telecommunications system use?

(This appendix does not form an integral part of this Recommendation.) Some telecommunications systems use d.c. voltage supplies of up to 60 V (TNV-1/ES1) and above 60 V to a maximum of 120 V (TNV-3/ES2) for specialised requirements.

What is the minimum requirement for a composite power supply?

For all wind-powered or other non-synchronous generating facilities the minimum requirement shall be the provision of a reactive power capability sufficient to maintain a composite power delivery at a power factor as defined in PJM Manual 14G.

Which metering equipment must meet PJM and Fe specifications?

This includes current transformers, voltage transformers, mounting structures, wiring, meters, communication circuits, and associated devices. The metering equipment must meet PJM and FE specifications. The revenue metering equipment shall be located at the Point of Interconnection unless otherwise agreed to by PJM, FE, and the Connecting Party.

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