CUBE SERIES
300-500kVA
CUBE series UPS is newly developed as a high frequency online tower UPS by KSTAR, adopting three-level technology in rectifier and inverter, high efficiency reach up to 95.3%, and adopting modular IGBT component, realize more wider input voltage range, more lower input and output harmonic distortion, more reliable, fully guarantee the user load to operate uninterruptable, suitable for area with poor power supply condition.
General Features
● Double conversion online technology. IGBT rectifier .
● Wide input voltage and frequency range makes it adapt to the harsh environment of the grid. Power Walk In function reduces the impact of startup current on the generator, and minimizes the capacity of the generator which the parallel system demands.
● A novel full digital DSP&FPGA control strategy, which is a patent that can protect the ups unit when a single DSP or FPGA is fails.
● Patent modulation algorithm can reduce the area of the main circuit power, and limits the temperature rising of the main circuit inside the UPS .
● Patent short circuit modulation algorithm can make it resist to large power impact .
Technical Specification
MODEL | CUBE | |||
Capacity (VA/Watts) | 300k/270k | 400k/360k | 500k/450k | |
SYSTEM FEATURES | ||||
Overall efficiency(%) | 95.30% | |||
Parallel operation | 4 | |||
Transfer time | 0ms | |||
INPUT | ||||
Rated input voltage | 380/220Vac, 400/230Vac, 415/240Vac(3Ph+N+PE) | |||
Operating voltage range |
176~276Vac(phase), 305~477Vac(line) | |||
Operating frequency range | 40~70Hz | |||
Power factor | ≥0.99 | |||
Harmonic distortion (THDi) | <3%(100% nonlinear load), <5%(50% nonlinear load) | |||
Backfeed protection | Support | |||
Generator access | Support | |||
Power walk in | Support | |||
BYPASS | ||||
Rated input voltage | 380/220Vac, 400/230Vac, 415/240Vac(3Ph+N+PE) | |||
Frequency | 50/60Hz | |||
Bypass voltage range | Max.voltage: +20%, Min.voltage: -40% (can be set by background software) | |||
Synchronous tracking range |
Max.3Hz (can be set by background software) | |||
Bypass frequency range | Max.±20% (can be set by background software) | |||
Backfeed protection | Support | |||
Generator access | Support | |||
OUTPUT | ||||
Rated output voltage |
380/220Vac, 400/230Vac, 415/240Vac(3Ph+N+PE) | |||
Frequency | 50/60Hz | |||
Power factor | 0.9 | |||
Harmonic distortion (THDv) | <2%(100% Linear load), <3%(100% nonlinear load) | |||
Voltage regulation | <1% | |||
Overload | Load≤110%: last 60min, ≤125%: last 10min, ≤150%: last 1min, >150% 200ms turn to bypass mode | |||
BATTERY | ||||
Battery voltage | Optional voltage: ±192/±204/±216/±228/±240Vdc(32/34/36/38/40 pcs optional) | |||
Charging power | Max. 60kW | |||
Charging current | Max. 100A | |||
ENVIRONMENT | ||||
Operating temperature |
0~40℃ | |||
Storage temperature | -20~70℃(no battery) | |||
Humidity range | 0~95% (Non-condensing) | |||
Altitude | <1500m. When >1500m, derating power for use | |||
Noise level | <70dB | |||
IP protection level | IP20 | |||
Other functions | ||||
Alarm function | Overload, over-temperature, main path anti-backfeed, bypass path anti-backfeed, mains power abnormal, UPS failure, battery low-voltage and other alarm functions |
|||
Protective function | Short-circuit, overload, main path anti-backfeed, bypass path anti-backfeed, over-temperature, battery voltage, output over-voltage, fan failure alarm, lightning protection, etc. |
|||
Communication function |
CAN, RS232, Modbus(optional), SNMP card(optional), Dry contact card(optional) | |||
EPO function | Yes(local and remote) | |||
PHYSICAL | ||||
Dimension D×W×H (mm) |
850×1300×2000 | |||
Net weight (kg) | 1200 | |||
STANDARDS | ||||
Safety | IEC/EN62040-1,IEC/EN60950-1 | |||
EMC | IEC/EN62040-2,IEC61000-4-2,IEC61000-4-3,IEC61000-4-4, IEC61000-4-5,IEC61000-4-6,IEC61000-4-8 |
Success Cases