The PREMIUS series UPS (Uninterruptible Power Supply) is a high-frequency, pure online, double-conversion, intelligent power solution designed to provide exceptional security for critical business sectors. These UPS units are suitable for file servers, enterprise servers, central servers, microcomputers, concentrators, telecom systems, data centers, and other applications that demand high-quality power protection. The series is available in capacities ranging from 7.5kVA to 20kVA, supporting both three-phase input single-phase output (3:1 mode) and single-phase input single-phase output (1:1 mode).
Function Description:
The PREMIUS UPS ensures continuous and stable power delivery by converting incoming AC power to DC to charge batteries and then converting it back to AC for the connected load. In the event of a mains power failure, the UPS seamlessly switches to battery power, providing uninterrupted operation. The double-conversion topology ensures that the output power is always clean and free from mains disturbances. The UPS features an intuitive LCD display for monitoring working status, system settings, and various parameters. It also includes multiple communication ports (RS485, intelligent slot for SNMP/dry contact cards) for remote monitoring and management. Optional accessories like an external isolation transformer and distribution module enhance its versatility and integration capabilities.
Important Technical Specifications:
- Capacities: 7.5kVA, 10kVA, 15kVA, 20kVA.
- Input Mode: 3W+N+PE (can be set as 1W+N+PE).
- Input Voltage Range (L-N):
- 76-100% Load: 176 Vac/186 Vac (L-N), 305 Vac/322 Vac (L-L) (±2%).
- 66-75% Load: 160 Vac/170 Vac (L-N), 277 Vac/294 Vac (L-L) (±2%).
- 51-65% Load: 150 Vac/160 Vac (L-N), 260 Vac/277 Vac (L-L) (±2%).
- 0-50% Load: 125 Vac/135 Vac (L-N), 217 Vac/234 Vac (L-L) (±2%).
- 100% Load: 280 Vac/270 Vac (L-N), 485 Vac/468 Vac (L-L) (±2%).
- Input Frequency Range: 40-70 Hz.
- Bypass Synchronism Range: 50/60±10% (50/60 self-adaption).
- Bypass Input Voltage Range: 10%/15%/20% (default is 20%).
- Input Power Factor: ≥0.99.
- Input THDI: Full load: ≤5%.
- Battery Voltage (Vdc):
- 7.5-10kVA: 192 ~ 480 Vdc (16-40 batteries, 12Vdc per battery).
- 15-20kVA: 288 ~ 480 Vdc (24-40 batteries, 12Vdc per battery; derates to 75% capacity if 24-30 batteries).
- Charge Current: 1-10A settable (1A/2A/3A/4A/5A/6A/7A/8A/9A/10A).
- Output Mode: 1W+N+PE.
- Output Voltage (L-N): 220/230/240 Vac (default is 230).
- Output Frequency: Tracks bypass input frequency when mains normal; 50±0.1 or 60±0.1 Hz when mains abnormal (default is 50).
- Waveform: Sine-wave.
- Voltage Distortion: Resistive full load: ≤1%; non-linear full load: <3%.
- Power Factor: 1.0.
- Crest Factor: 3:1.
- Transfer Time (BYP and INV): Synchronization: <1 ms; Asynchronization: <10 ms.
- Overload Capacity:
- Inverter: <105%: continuous, 106%~110%: 60min; 111%~130%: 10min; 131%~155%: 1min; >155%: 200ms.
- Bypass: <130%: continuous, 131%~155%: 1min; >155%: 200ms.
- DC Startup Function: Equipped.
- Isolation Transformer: External (Optional).
- Panel Display: LCD shows running status.
- Communication Port: RS485.
- Alarm Function: Battery low-voltage, mains abnormal, UPS fault, output overload, etc.
- Protection Function: Battery under-voltage, overload, short-circuit, over-temperature, input over-voltage, communication abnormal, etc.
- Noise (dB): <55 (normal temperature).
- Work Temperature: 0°C~40°C.
- Relative Humidity: 0~95%, non-condensation.
- Size (W×D×H): 438×572×130 mm.
- Weight (kg): 19 (7.5kVA/10kVA), 20 (15kVA/20kVA).
- Distribution Panel Size (W×D×H): 438x572x130 mm.
- Distribution Panel Weight (kg): 11.
Usage Features:
- Flexible Installation: Supports both tower-mounting and rack-mounting (19-inch standard cabinet) to suit various setup requirements.
- User-Friendly Interface: An LCD display provides clear information on working parameters, operational statuses, and system configuration. The menu hierarchy allows for easy navigation through main monitoring pages (Energy Flow Diagram, Detail, Grid, BYP, BAT, OUT, Device) and setting pages (Parameter Set, Function Set, Log Manage, Screen Set, Permission Set).
- Parameter Configuration: Users can adjust various parameters such as bypass voltage/frequency range, battery capacity, number of cells, charge current, and output voltage.
- Function Settings: Includes mode settings (e.g., 3/1, Parallel, Redundant), ECO mode settings, battery test options (Standard, Depth, Timing), and other settings like backup time display, silence, and auto-start.
- Battery Management: Allows for precise control over battery parameters, including equalizing charge voltage, float charge voltage, and temperature compensation.
- Parallel System Support: The UPS can be configured in a parallel system for increased capacity or redundancy. This requires consistent wiring and phase sequence across all units, and identical battery quantities in each UPS unit. Shielded communication wires connect parallel ports, with RJ45 ports serving as redundant backups.
- Safety Features: Incorporates DANGER, WARNING, and CAUTION symbols throughout the manual to highlight critical safety instructions for installation, operation, and maintenance. Features anti-static protection and electric shock prompts.
- Emergency Power Off (EPO): The EPO input dry contact allows for immediate shutdown of the UPS in an emergency.
- Maintenance Bypass Switch Detection (BMD): Monitors the status of the maintenance bypass switch, ensuring safe operation during maintenance.
- Wiring Flexibility: The PREMIUS series supports various wiring configurations, including 31 mode (three-phase input, single-phase output) and 11 mode (single-phase input, single-phase output), with detailed guidance on selecting appropriate breakers and wire cross-sectional areas.
Maintenance Features:
- Periodic Preventative Maintenance: Regular maintenance is recommended to improve efficiency and reliability. This includes:
- Cleaning the UPS with a dry cloth (after shutdown).
- Checking the firmness and connection of input and output wiring.
- Inspecting cooling fans for operational status and unobstructed air outlets.
- Regularly checking battery voltage and UPS operational status for faults.
- Battery Maintenance:
- Charge batteries for 10 hours before initial use.
- Charge and discharge batteries every 4-6 months (or every 2 months in high temperatures) until under-voltage and power-off, then recharge for over 10 hours.
- If unused for an extended period, charge for more than 10 hours every three months.
- Battery replacement should be performed by authorized professionals when performance diminishes (typical lifespan 3-5 years).
- Troubleshooting Guide: The manual provides a comprehensive troubleshooting table for common faults, including fault phenomenon, LCD fault symbols, buzzer status, and possible reasons, along with recommended solutions.
- Customer Support: In case of persistent problems, users are advised to contact Numeric UPS after-sales service with specific information such as model number, serial number, date of problem, LCD/LED status, utility power conditions, load type/capacity, environmental conditions, and external battery pack details.
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