A. Reclosers The recloser be rated (choose appropriate column): SELECTION OF RATINGS IEEE/IEC Maximum Design Voltage, kV 15 27 38 Impulse Level (BIL) Voltage, kV 110 125 150 800/1000* 800/1000* 800 Continuous and Load Break Current, Amperes 960 960 960 8-hour Overload, Amperes 50 60 70 60 Hz Withstand, kV rms: One minute (dry) 45 50 60 60 Hz Withstand, kV rms: 10 seconds (wet) 16** 16** 12.5 Interrupting Current, kA rms sym. 25.6** 25.6** 20 Making Current: RMS, asym, kA 42** 42** 32 Making Current: Peak, asym, kA 16** 16** 12.5 Short Circuit Current, kA sym. , 3 seconds 10k 10k 10k Mechanical Endurance, Operations *1000A continuous current available with the following conditions: 12.5kA Interrupting Current, L-shaped module configuration, NEMA-4 hole or clamp style lugs, and operating temperature range of -60°C through +40°C **12.5kA Interrupting Current available. B. IEEE C37.60 Fault Interrupting Duty Percent of Maximum: Approx. Interrupting: No. of Fault: Interrupting Rating Current Amps Interruptions 2000 44 15-20% 6000 56 45-55% 12000 16 90-100% Total Number of Fault Interruptions: 116 2.4 CABLE BUSHINGS Cable bushings shall be (choose one): _ Air insulated, removable silicone insulators over an IEEE 386 apparatus bushing interface • For Padmount design: 600 amp Apparatus bushing • 200 amp Deepwell bushing • 2.5 FACTORY PRODUCTION TESTS Each individual recloser undergo a mechanical operation check verifying contact trip/close velocity, travel profile, timing and phase synchronicity. The recloser shall be AC hi-pot tested one minute and across the open contacts. Circuit resistance shall be checked on all phases. Timing tests shall be conducted to verify TCC performance.
A. Reclosers The recloser be rated (choose appropriate column): SELECTION OF RATINGS IEEE/IEC Maximum Design Voltage, kV 15 27 38 Impulse Level (BIL) Voltage, kV 110 125 150 Continuous and Load Break Current, Amperes 800/1000* 800/1000* 800 8-hour Overload, Amperes 960 960 960 60 Hz Withstand, kV rms: One minute (dry) 50 60 70 60 Hz Withstand, kV rms: 10 seconds (wet) 45 50 60 Interrupting Current, kA rms sym. 16** 16** 12.5 Making Current: RMS, asym, kA 25.6** 25.6** 20 Making Current: Peak, asym, kA 42** 42** 32 Short Circuit Current, kA sym. , 3 seconds 16** 16** 12.5 Mechanical Endurance, Operations 10k 10k 10k *1000A continuous current available with the following conditions: 12.5kA Interrupting Current, L-shaped module configuration, NEMA-4 hole or clamp style lugs, and operating temperature range of -60°C through +40°C **12.5kA Interrupting Current available. B. IEEE C37.60 Fault Interrupting Duty Percent of Maximum: Interrupting Rating Approx. Interrupting: Current Amps No. of Fault: Interruptions 15-20% 2000 44 45-55% 6000 56 90-100% 12000 16 Total Number of Fault Interruptions: 116 2.4 CABLE BUSHINGS Cable bushings shall be (choose one): • _ Air insulated, removable silicone insulators over an IEEE 386 apparatus bushing interface For Padmount design: • 600 amp Apparatus bushing • 200 amp Deepwell bushing 2.5 FACTORY PRODUCTION TESTS Each individual recloser undergo a mechanical operation check verifying contact trip/close velocity, travel profile, timing and phase synchronicity. The recloser shall be AC hi-pot tested one minute and across the open contacts. Circuit resistance shall be checked on all phases. Timing tests shall be conducted to verify TCC performance.
ViperST_Spec.docx