GE SecoGear - Page 8

DET-882 SecoGear Medium-voltage Switchgear Application and Technical Guide
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Table 1-3: Applicable National Electrical Manufacturers Association (NEMA) Standards ..................................................................................3
Table 1-4: Permitted Rollout Unit Combinations ......................................................................................................................................................................5
Table 2-1: SecoVac VB2+ Vacuum Circuit Breaker Characteristics ............................................................................................................................ 11
Table 2-2: SecoVac Breaker Capacitor Switching Capabilities ...................................................................................................................................... 12
Table 2-3: Altitude Correction Factors* for SecoVac VB2+ Circuit Breakers and SecoGear Switchgear ................................................ 13
Table 3-1: SecoVac VB2+ IEEE Circuit Breaker Control Voltages and Currents .................................................................................................... 18
Table 3-2: Contact Ratings for MOC, TOC, and Breaker Auxiliary Switches ............................................................................................................ 18
Table 3-3: Simultaneous Breaker Tripping ............................................................................................................................................................................... 20
Table 3-4: GE Type HEA Lockout Relay Coil Current Characteristics ......................................................................................................................... 20
Table 3-5: AC Load Factor for Charger Battery Voltage ................................................................................................................................................... 20
Table 3-6: Battery Selection Guide ............................................................................................................................................................................................... 21
Table 3-7: Battery Sizing, Example A ........................................................................................................................................................................................... 22
Table 3-8: Battery Sizing, Example B ........................................................................................................................................................................................... 22
Table 3-9: AC Load Estimating Example .................................................................................................................................................................................... 23
Table 3-10: Heat Loss per Breaker ................................................................................................................................................................................................ 24
Table 3-11: Heat Loss per Section ................................................................................................................................................................................................ 24
Table 4-1: Remote Control Schemes ........................................................................................................................................................................................... 33
Table 4-2: Single Ratio CTs ................................................................................................................................................................................................................ 33
Table 4-3: Multiple Ratio CTs ............................................................................................................................................................................................................ 34
Table 4-4: ANSI Device Codes .......................................................................................................................................................................................................... 34
Table 6-1: SecoGear Characteristics ........................................................................................................................................................................................... 63
Table 7-1: SecoVac VB2+ Vacuum Circuit Breaker Characteristics ............................................................................................................................ 66