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Transformer-free UPS KR33A Series (10-30kVA)

Transformer-free UPS KR33A Series (10-30kVA)

3 Phase Low Voltage Transformer-free UPS (10-30kVA)

The KEHUA KR33 series 3-Phase in, 3-Phase out UPS uses advanced 3 level inverter technology and digital technology for full interconnection. It provides safe, stable, clean, and environmentally friendly power to loads and can provide safe and reliable comprehensive protection to data centers, IT server rooms, precision instruments and others.

  • Key Features
  • Technical Data
  • Related Solutions

Advanced Technology:

Online Double Conversion

• DSP and full digital control

• No-master-slave N+1 parallel technology

• International IGBT power modules

• DC startup function


Green & Reliability:

• Internal maintenance bypass

• PCB boards feature with anti-corrosion paint coating

• Manual bypass maintenance design

 Allow 100% three phase unbalance load

• EPO function

• Intelligent fans control


Excellent Flexibility:

Intelligent battery management

• Intelligent network supervising

MODEL

KR3310A/KR3310AS

KR3320A/KR3320AS

KR3330A/KR3330AS

INPUT

Nominal voltage (Vac)

110/115/120 (L-N)

Voltage range (Vac)

83~138V full load, 73~83V 75% load, 60~73V 50% load

Rectifier frequency (Hz)

50/60±5% (±10% optional)

Bypass voltage range (Vac)

110+15%(+20% optional)/-25%

Power factor (PF)

>0.99

THDI

<3%

Phase

3φ4W+PE

Battery

External/16pcs x 12AH 12V

External/32pcs x 12AH 12V

External/48pcs x 12AH 12V

Battery voltage (Vdc)

192

Charging current (A)

6

OUTPUT

Capacity (kVA)

10

20

30

Power factor (PF)

0.9

Phase

3φ4W

Waveform

Pure sine wave

Voltage (Vac)

110/115/120 (L-N)

Frequency (Hz)

50/60±0.2% (battery mode)

Waveform distortion

THD≤3%

Static bypass

transfer time(ms)

0

System efficiency

≥93

Parallel mode

Advanced no-master-slave parallel technology, N+1   redundancy

Overload capacity

106-130% load for 1min ; 150% load for 10s (to bypass)

OTHERS

Maintenance bypass

Yes

DC cold start function

Yes

Display

Touch screen+LED

Communication function

RS232/RS485 dry contact,SNMP (optional)

Approvals

Meet standard EN 62040-2: 2006

Noise(dB)

65

Dimension (WxDxH) (mm)

500×800×1500

Finance Industry SolutionTransportation Industry SolutionElectric Power Industry SolutionPublic Power Solution


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