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SCHEDULE 3—INTERCONNECTION PROCESS,TECHNICAL REQUIREMENTS,AND OPERATING PROCEDURES <br /> SOURCE-AREA EPS <br /> 1 PROTECTION SHOWN IS FOR WYE- <br /> GROUNDED WYE TRANSFORMERGROUNDED <br /> FOR OTHER TRANSFORMER CONNECTIONS CONTACT E <br /> ./..„/\",\,\ 4. AREATECTIVE EPS OPERATORREQUIREMEFORNT POSSIBLE ADDITIONAL <br /> PRO <br /> EMETERING(SEE TABLE 5A) <br /> AREA EPS <br /> LOCAL EPS o SERVICE ENTRANCE EQUIPMENT <br /> / (ACCESSIBLE,VISIBLE&LOCI <br /> KABLE DSCONNECT DEVICE) <br /> BREAKER A MAY SERVE AS VISIBLE DSCONNECT DEVICE IF <br /> DRAW-OUT BREAKER. <br /> • • • <br /> so/s1 <br /> 3) (3) (3) <br /> CT(3) 3 25 1 el 810/U 0 0 59 <br /> (1) (1) (3) (3) (3) <br /> 0 0 A <br /> • • <br /> LOAD, 1 ACCESSIBLE,VISIBLE& <br /> LOCKABLE ECT VICE <br /> Dem No Function 1811,5DEPENDING UPON (OPTIONAL BUTS RECOMMENDED) <br /> 25 Synchronizer THE RELATIVE SIZE <br /> OF THE LOAD TO THE <br /> 25SC 'Synch check Relay GENERATION, <br /> BREAKER B MAY BE <br /> 27159 'Under/Over Voltage 86/A TRIPPED INSTEAD OF <br /> BREAKER A,FOR 50/51 0 <br /> 32 'Reverse Power(Trip SOME OR ALL OF THE <br /> for power toward Area EPS 86/B PROCTIONS.TECTIVE CT(3) (3) <br /> F47 Negative Sequence 86/A <br /> BREAKERS'MAY <br /> 50151 'Phase Overcurrent 86/A SERVEVISIBLE <br /> DISCONNECT ECT <br /> 51N 'Ground Overcurrent 86/A DEVICE IF DRAW-OUT 1111111 4a0/09 <br /> BREAKER. (1) <br /> 62PL 'Parallel Limit Timer 86/A <br /> 67 Directional Overcaurent 86/A 3-PHASE <br /> 81 'Over/Under Frequency 86/A GENERATOR <br /> 86A 'Lockout Relay A <br /> 86B 'Lockout Relay B SOFT LOADING <br /> TT 'Transfer Trip 86/A EXTENDED PARALLEL <br /> TT is not required for Generation Systems smaller then 250kW OPERATION <br /> (1)(2)(3) Indicates Number of Phases Monitored <br /> •Indicates Minimum Requited Protection. DATE: I FI ure 4 <br /> Other Relays Shown are Recommended for generator Protection. JAN 2003 g <br /> Interconnection Process for Distributed Generat'cSystems <br />