PET3330 3 phase 30kva ups system with unity output power factor
3 Phase Online UPS | 30kVA / 30kW | 3 Phase | +/- 192VDC ~ +/-240VDC
Prostar PET3330 3 phase 30kva ups system with unity output power factor provides maximum usable power, ensuring higher efficiency and optimal compatibility with modern loads.
Built on pure double-conversion online technology, the 30kva ups system completely isolates connected equipment from utility power disturbances. These disturbances include voltage fluctuations, frequency variations, surges, and harmonics. Advanced DSP digital control ensures fast response, precise regulation, and stable performance under all operating conditions.
The 30kva ups system features a 3-phase input and 3-phase output design. This makes it ideal for data centers and financial Institutions. It is also perfect for medical equipment, telecommunications and other critical infrastructure. Its high-frequency, transformerless architecture delivers high efficiency, compact size, and reduced operating costs.
30kVA UPS System Key Features
Unity Output Power Factor (PF = 1.0)
Delivers full 30kW real power from 30kVA capacity, maximizing energy utilization and supporting modern high-density loads.
True Online Double Conversion Technology
Provides complete isolation from utility disturbances, ensuring stable, clean, and uninterrupted power supply.
3-Phase Input / 3-Phase Output Design
Ideal for balanced three-phase loads in medical, commercial, and IT environments.
Wide Input Voltage and Frequency Range
Maintains stable operation under unstable grid conditions, reducing battery usage and extending battery life.
Parallel Operation Capability
Supports multiple units in parallel for capacity expansion or N+1 redundancy, enhancing system availability.
Transformerless High-Efficiency Design
Compact structure with reduced weight and higher efficiency, lowering energy consumption and total cost of ownership.
User-Friendly LCD Display and LED Indicators
Real-time monitoring of system status, alarms, and electrical parameters for easy operation and maintenance.
UPS Power Supply Connection Diagram
The online double-conversion UPS acts as the core of the system. It continuously converts incoming AC power to DC. Then it converts the DC back to clean, regulated AC power. This design fully isolates the load from input power disturbances such as voltage fluctuations, frequency variations, and electrical noise.
An external battery bank or battery cabinet is connected to the UPS to provide uninterrupted backup power during mains failure. The UPS automatically switches to battery mode without interruption, ensuring continuous operation of connected equipment.
The conditioned and regulated output power from the UPS is delivered to various critical loads. This includes servers, data centers, security systems, networking equipment, and industrial devices. This ensures maximum protection and reliability.
UPS Uninterrupted Power Supply Details
Rear Panel Shown
| 1. SNMP intelligent slot | 2. Cold start function | 3. RS485 communication port |
| 4. RS232 communication port | 5. USB communication port | 6. Emergency power off function connector |
| 7. Share current port(only for parallel model) | 8. Parallel port (only for parallel model) | 9. Line input circuit breaker/switch |
| 10. Manual bypass switch (10kVA – 40kVA optional configuration) | 11. Output switch | 12. Maintenance bypass switch |
| 13. Line connection terminal | 14. Bypass input terminal (10kVA-40kVA optional configuration) | 15. Battery switch |
Rear Panel Connection Terminal
Parallel Wiring Diagram
Dual Input in Parallel Operation
LCD Display
DC Settings Shown
Battery Mode
UPS Specifications
Rated Capacity
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Power Range: 30kVA/30kW
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Output Power Factor: 1.0
AC Input
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Input Phase: Three-phase (3P + N + PE)
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Nominal Voltage: 380 / 400 / 415 Vac
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Voltage Range: 110Vac – 300Vac (P-N)
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Frequency: 50 / 60 Hz (auto-sensing)
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Power Factor: ≥ 0.99
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Input THDi: ≤ 3%
AC Output
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Output Phase: Three-phase (3P + N + PE)
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Output Voltage: 380 / 400 / 415 Vac
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Voltage Regulation: ±1%
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Frequency Accuracy:
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Utility mode: synchronized to input
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Battery mode: ±0.1Hz
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Waveform: Pure sine wave
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Total Harmonic Distortion (THDv):
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Linear load: ≤ 2%
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Non-linear load: ≤ 5%
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Battery
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Battery Type: VRLA / External battery bank
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Battery Configuration: 32-40 units(adjustable) for 12v battery
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Backup Time: Configurable via battery capacity
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Charging Method: Intelligent multi-stage charging
Parallel Operation
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Parallel Capability: Up to 4 units
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Parallel Mode: Capacity expansion or N+1 redundancy
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Battery System: Shared battery bank supported
Communication & Monitoring
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Display: LCD + LED indicators
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Standard Interface: RS232 / RS485 / USB
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Optional Interface: SNMP, WiFi, GPRS, Dry Contact
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Monitoring: Local and remote real-time monitoring
Mechanical
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Design: Transformerless, high-frequency
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Installation: Tower / Cabinet type
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Cooling: Intelligent forced air cooling
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Protection Level: IP20
- Dimension: 250x695x545mm
Applications
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Data centers and server rooms
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Medical and healthcare systems
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Telecom and network equipment
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Financial and security systems
- Bank ATM
- Commercial Buildings & Infrastructure
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| Model | PET3330 |
| Capacity | 30KVA/30KW |
| Topology | Double conversion online |
| Noise | Less than 65dBA front side 1M |
| Dimension(WxDxH mm) | 250x695x545 |
| Weight(Kg) | 36 |
| INPUT | |
| Low Line Loss Voltage | 110VAC(L-N) ± 3% at 50% load, 176VAC(L-N) ± 3% at 100% load |
| Low Line Comeback Voltage | Low line loss voltage + 10V |
| High Line Loss Voltage | 300VAC(L-N) ± 3% at 50% load, 276VAC(L-N) ± 3% at 100% load |
| High Line Comeback Voltage | High line loss voltage -10V |
| Input Frequency Range | 50Hz: 46-54Hz, 60Hz: 56-64Hz |
| Input Power Factor | ≥0.99 at 100% load |
| OUTPUT | |
| Output Rated Voltage | 3P + N + PE, 360Vac/380Vac/400Vac/415Vac ± 1% |
| Output Frequency | AC mode: 50Hz: 46-54Hz, 60Hz: 56-64Hz; Battery mode: 50Hz/60Hz ± 0.1Hz |
| Output Power Factor | 1 |
| Total Harmonic Distortion | ≤ 2% at 100% linear load; ≤ 5% at 100% non-linear load |
| Overload Capacity | AC mode: 100%-110%: 60mins; 110%-125%: 10mins; 125%-150%: 1min; >150%: immediately Battery mode: 100%-110%: 60mins; 110%-125%: 10mins; 125%-150%: 1min; >150%: immediately |
| Crest Factor | 3:1 |
| Wave Form | Pure sine wave |
| Transfer Time | Line –> Battery: 0ms; Inverter –>Bypass: 0ms(When phase lock fails, <4ms interruption occus from inverter to bypass); Inverter –> ECO: <10ms |
| EFFICIENCY | |
| Efficiency at full load (AC-AC) | >95.5% |
| Efficiency at battery mode | >94.5% |
| BATTERY | |
| Battery Type | Depending on applications |
| Battery Number | 32-40 units(adjustable) for 12v battery |
| Battery Voltage | +/- 192VDC – +/-240VDC |
| Battery Charging Current | 2A – 24A ± 10% adjustable |
| Battery Charging Voltage | +/- 13.65VDC *N ± 1% (N=16~20) |
| SYSTEM | |
| IP Protection | IP20 |
| Number of Parallel | < 6 Units |
| Cooling Method | Fans |
| Display | 7-inch LCD Touch Screen |
| Audible Alarm | Audible and visible alarms prioritized by severity |
| ENVIRONMENT | |
| Operating Temperature | 0℃ to 40℃ (battery life will down when >25℃) |
| Humidity | 0~95% (non-condensing) |
| Altitude | < 1000m (Capacity de-rates by 1% for every 100m over 1000m) |
| COMMUNICATION | |
| Communication Interface | RS232/RS458/USB |
| Communication Slot | Optional SNMP |
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