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Transformer-free UPS KR33 Series (10-200kVA)

Transformer-free UPS KR33 Series (10-200kVA)

3 Phase Online Transformer-free UPS (10-200kVA)

The KEHUA KR33 series 3-Phase in, 3-Phase out UPS uses advanced 3 level inverter technology and digital technology for full interconnection and has advantages such high efficiency, high power density and occupies only a small amount of floor space. 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

Creating an Eco-energy Internet

High power density, 200KVA and only occupies 0.54 square meters of area; saves a lot of surface space in the client’s server room while having an environmentally friendly design. It uses the latest IGBT rectifying technology and its input power factor approaches unit power factor and improves energy efficiency to up to 95%. With a power factor of 1, significant savings are made on energy consumption and equipment investments costs and cost effectiveness increases


Lower Total Cost of Ownership

The system has a touch screen with powerful functions, dual button on/off switching, user-friendly interface, easy to operate protection functions and warning alarms. It also has complete input over voltage, input under voltage, over load, short circuit, and component failure warning to reduce client operation and maintenance costs and has smart waveform record for failure that can record key simulations and digital signals a few cycles before and after a fault occurs to make it much easier for equipment maintenance and troubleshooting. This effectively improves system maintenance time efficiency. The 4D fan design further improves overall system efficiency and makes operation and maintenance management more convenient and improves overall operation reliability


Smarter Operation and Maintenance Management

Full digital interconnection, advanced dual DSP control technology, fast fault self-diagnosis, full redundancy coverage, no more single point of failure, and good system compatibility ensures reliable power supply to the load from an ultra-wide range of input from the power grid, while the smart generator control enables flexible adaptation to various complex power grid environments

MODEL

KR3310S/ KR3310

KR3320S/ KR3320

KR3330S/ KR3330

KR3340S/ KR3340

KR3350

KR3360

KR3380

KR33100

KR33120

KR33160

KR33200

INPUT

Voltage (Vac)

380/400/415138~485 L-L)

Frequency (Hz)

40~70

Bypass Voltage (Vac)

380/400/415: -20%~+15%

Power Factor

≥0.99

THDi

≤3%

Phase

3φ4W+PE

OUTPUT

Capacity (kVA)

10

20

30

40

50

60

80

100

120

160

200

Power Factor

1

Voltage (Vac)

LN: 220/230/240±1%

LL: 380/400/415±1%

Frequency (Hz)

50/60±0.1 (battery mode)

Phase

3φ4W+PE

Unbalance 3-phase voltage stabilization with full load

≤2%

Waveform

Pure sine wave, THD<1% at linear

Transfer Time (ms)

0

Efficiency

up to 96

Overload

105%~115% load for 60mins; 116%~130% load for 10mins; 131%~150% load for 1min; >150% load for 200ms

BATTERY

Battery Voltage (Vdc)

±192/±216±180/±204/±216/±228/±240 settable for long backup type

BATT Type

32×7AH/

12V (34/36

optional)/ External

36×9AH/

12V (32/34

optional)/ External

64×9AH/

12V (68/72

optional)/ External

72×9AH/

12V /

External

External

Charging Current (A)

1-10 settable

1-20 settable

1-30 settable

1-40

settable

1-50

settable

OTHER

Communication

Interface

RS485, MODBUS, dry contacts

(RS232, SNMP, expend dry contact card are optional in slot)

Display

Touch screen+LED

Alarm

AC input abnormal, low battery, overload,  failure

Protection

Output short-circuit, overload, over temperature, battery low voltage, output over/low   voltage

Noise (dB)

<65

Workin Temperature ()

0~40

Relative Humidity

0~95%, no condensation

Dimension (W×D×H)(mm)

320×840×1030 /

320×840×867

320×840×1400 /

320×840×867

450×840×967

450×840×1400

600×900×1600

Weight (kg)

240 / 120

250 / 120

350 / 120

370 / 120

160

210

242

242

320

350


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