stock code: 002335.SZ
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stock code: 002335.SZ
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.
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 |
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Voltage (Vac) |
380/400/415(138~485 L-L) |
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Frequency (Hz) |
40~70 |
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Bypass Voltage (Vac) |
380/400/415: -20%~+15% |
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Power Factor |
≥0.99 |
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THDi |
≤3% |
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Phase |
3φ4W+PE |
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OUTPUT |
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Capacity (kVA) |
10 |
20 |
30 |
40 |
50 |
60 |
80 |
100 |
120 |
160 |
200 |
Power Factor |
1 |
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Voltage (Vac) |
L-N: 220/230/240±1% L-L: 380/400/415±1% |
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Frequency (Hz) |
50/60±0.1 (battery mode) |
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Phase |
3φ4W+PE |
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Unbalance 3-phase voltage stabilization with full load |
≤2% |
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Waveform |
Pure sine wave, THD<1% at linear |
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Transfer Time (ms) |
0 |
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Efficiency |
up to 96% |
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Overload |
105%~115% load for 60mins; 116%~130% load for 10mins; 131%~150% load for 1min; >150% load for 200ms |
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BATTERY |
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Battery Voltage (Vdc) |
±192/±216(±180/±204/±216/±228/±240 settable for long backup type) |
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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 |
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Charging Current (A) |
1-10 settable |
1-20 settable |
1-30 settable |
1-40 settable |
1-50 settable |
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OTHER |
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Communication Interface |
RS485, MODBUS, dry contacts (RS232, SNMP, expend dry contact card are optional in slot) |
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Display |
Touch screen+LED |
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Alarm |
AC input abnormal, low battery, overload, failure |
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Protection |
Output short-circuit, overload, over temperature, battery low voltage, output over/low voltage |
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Noise (dB) |
<65 |
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Workin Temperature (℃) |
0~40 |
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Relative Humidity |
0~95%, no condensation |
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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 |
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Weight (kg) |
240 / 120 |
250 / 120 |
350 / 120 |
370 / 120 |
160 |
210 |
242 |
242 |
320 |
350 |
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