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16.3 Electrical Specification
Rated Capacity 150kVA (120kW) 225kVA (180kW) 300kVA (240kW)
AC Input
Input Voltage 480V ( +10% ~ -15% ), 3-Phase 3-Wire
Input Frequency 60Hz ±5%
Input Power Factor 0.95 ~ 1.00 Lagging ( at 100% Load )
Current Harmonic Distortion 6% Maximum ( at 100% Load )
Input Capacity Required 154kVA 232kVA 309kVA
Circuit Breaker Rating at 480V input 225A Trip 350A Trip 450A Trip
DC Input
Voltage Window 288 ~ 414 V
Recharge Voltage Regulation ± 1.5%
AC Output
Output Voltage 480/277V ± 1%, 3-Phase 4-Wire
Output Power Factor 0.8 Lagging
Voltage Distortion 3% with 100% Linear Load / 5% with Non-Linear Load
Transient Voltage Regulation < ± 2%
Transient Settling Time < 50msec
Crest Factor < 2.0
Output Frequency 60Hz ± 0.01% ( at Free-running Mode)
Synchronous window to the utility line 59Hz ~ 61Hz
Frequency Slew Rate 1Hz/Sec
Over Load Rating 100%-Continuous / 125%-10min. / 150%-1min.