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Transformer-free KR33 BM Series (300-800kVA)

Transformer-free KR33 BM Series (300-800kVA)

3 Phase Online Transformer-free UPS (300-800kVA)

The KEHUA high frequency IGBT rectifier uses 3 level dual-converter online technology, IGBT, and DSP (digital processing processors). The KR(/B)33-BM series ensures high quality electricity is provided to any data processing or industrial load and is particular applicable to the protection of important key loads. VFISS 11 (voltage, frequency independent) complies with IEC EN 62040-3. The design of this series uses a new configuration which includes replacing the traditional SCR rectifier with a IGBT rectifier which ensures sinusoidal input current. At the same time, the 300kVA and above compatible isolation converter enables complete electrical isolation between output and input and completely prevents any disturbance to the load equipment brought about by power grid abnormalities of the input.

  • Key Features
  • Technical Data
  • Related Solutions

Worry-free: The Classic Tower Design Returns, A New Milestone for Reliability

• Designed for multi-user interactions with anti-maintenancemisoperation measures

• Has an “electromagnetic shielding room” structure design that prevents dust buildup and shields from interference

• Independent dual wind channel and thermal simulation design for precise heat dissipation

• Power supply redundancy design with fault tolerance


Cost Saving: Full Life Cycle Optimization, Creating the Ultimate Benefits

• Tower type product with the highest power density and occupies less surface area

• Up to 1 output PF, reduces equipment and space investment costs

• CEL self-testing function, simple acceptance process

• Overall system efficiency of up to 97%, greatly reducing operation costs

• Number of batteries is adjustable between 32~44; can be configured according to upgrade and maintenance needs


Save Time: Convenient Operation and Maintenance Management, Leading the Smart Trend

• 2nd generation smart user interface for an unhindered user experience

• Smart wave recording function for precise positioning and quick maintenance

• Programmable communication interfaces improve communication and interconnection efficiency

• Smart generator management reduces power connection response time


MODEL

KR33300BM

KR33400BM

KR33500BM

KR33600BM

KR33800BM

INPUT

Voltage (Vac)

380/400/415

Voltage Range

-40%~+25%

Phase

3Ph+N+PE

Rated frequency (Hz)

50/60

Frequency Range

±5% / ±10%

Power Factor

0.99

THDi

≤3%

BYPASS

Input Voltage (Vac)

380/400/415

Voltage Range

-25%~+20%

Frequency Range

±5% / ±10%

OUTPUT

Capacity (kVA)

300

400

500

600

800

Output Voltage (Vac)

380/400/415±1%

Frequency (Hz)

50/60±0.1

Power Factor

0.9 (1.0 optional)

THDv

<0.5% (linear load), ≤5% (nonlinear load)

Max. Efficiency

97%

Phase

3Ph+N+PE

Overload

100%~125% load for 10mins;   126%~150% load for 1 min

100%~110% load for 60 min, 111%~125% load for 10 min, 126%~150% load for 1  min

Dynamic  Response Time (ms)

20

Dynamic  Response Range

≤5%

BATTERY

Voltage (Vdc)

480 (12V battery from 32 to 44 cells settable)

Charging Current (A)

20-100

OTHER

Operating Temperature ( )

-5~40

Storage Temperature ( )

-25~55

Noise (dB)

<75

Communication

RS232/RS485, MODBUS, dry contact, SNMP (optional)

Dimension  (W×D×H)(mm)

1400×900×1800

1600×1000×1800

1900×1000×1800

Weight (kg)

850

1000

1300

1400

1800


 Transportation Industry SolutionElectric Power Industry SolutionPublic Power Solution



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