Mike Bukovitz, P.E. Vice-President, Power Systems Business
600, 800 & 1200A, 25kA Ratings: interrupting 4.76kV 60kV BIL 15.0kV, 95kV BIL NEMA Type 1 Enclosure (indoor) Enclosure: NEMA Type 3R (outdoor) Arc Resistant Isolation Switch 90 ” height x 26” width x 65” depth Isolation Switch + Ground Switch Components: Removable Vacuum Circuit Breaker Drawout Vacuum Circuit Breaker Arc Flash (12m) Circuit Breaker Switchgear – Metal Enclosed IEEE Standards: C37.20.3 Breaker – C37.04, C37.06, C37.09 Accessories: Accessories: • Breaker & disconnect remote control • Arc Flash Relays • Arc Quenchers TM 3
Main Bus LBSkit VTs Line CTs Breaker Load CTs Outgoing Cables
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4 FT @ 5kV Hybrid Metal-Enclosed 5 FT @ 15kV 65” Deep 92” Deep Metal-Clad 4 FT @ 5kV 24” 5 FT @ 15kV Wide 36” Wide 4 FT @ 5kV 5 FT @ 15kV (Calculation with 1 main with VT & CPT, 6 Feeders at 5kV) 6
8
Arc Quencher TM Cubicle LV Main Bus Main Bus Breaker & Cable Breaker & Cable 9
Mechanism common with Masterpact LV Breaker; more than 1 million units sold 10,000 mechanical operations endurance CTs 3 cycle interruption Mechanism Rear View Front View 10
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Standard Accuracy Current Transformers High Accuracy 12
➢ ➢ 27kV & 34.5kV 5kV & 15kV 1 3
VTs: Thermal Burden – 300VA Accuracy – 0.3 WXY Secondary – 120V Low Partial Discharge PT to meet IEC 60044-2 5kVA CPT (Optional) Wye PTs Removable Truck (once primary cables are Fuses for PT disconnected, truck can be & CPT removed using lift truck )
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