1.5 Telecommunications

Question 1

PJMnet is a wide area private network for secure Control Center comms to and from PJM. What two comms protocols does PJMnet support?

Answer 1

ICCP (Intercontrol Center Communication Protocol) - used to exchange data b/t control centers, utilities, power pools etc.

DNP3 (Distributed Network Protocol) - used for comms b/t a master station and RTUs

Question 2

Wind Resource - Real Time Data Requirements

Answer 2

• Low and High MW and MVAR output

- MET data: wind speed, direction, temp, pressure

Question 3

Real Time Data for Wind Plants - frequency

Answer 3

10 seconds or less