The ZGR Tower Pro 6-10 KVA is an online single-phase UPS (Uninterruptible Power Supply) designed to provide reliable power protection for critical loads. This high-frequency UPS offers double conversion online technology, ensuring maximum efficiency and excellent electrical performance. It boasts a grid-friendly design, intelligent appearance, and compliance with regulations on safety and electromagnetic compatibility, making it suitable for international advanced level applications.
Function Description
The ZGR Tower Pro 6-10 KVA operates on a double-conversion online principle, meaning it continuously converts incoming AC power to DC, and then back to AC, providing a clean and stable output regardless of input fluctuations. This design ensures that the load is always supplied with high-quality power, isolated from disturbances on the utility line. In the event of a utility power failure, the UPS seamlessly transfers to battery power, providing uninterrupted operation.
Key components and their functions include:
- Input filter: Completes the input AC utility power to provide clean power for the UPS.
- AC/DC converter: Converts the filtered AC mains to DC power for the inverter and battery charger.
- DC/DC booster: When the UPS works in battery mode, the circuit boosts the DC for the AC/DC inverter.
- DC/AC inverter: Converts the boosted DC power to stable AC output.
- Bypass: When an overload or UPS failure occurs, it transfers power to the load directly from mains through an electronic switch.
- Charger: Charges the battery with intelligent power control. Standard units provide 1A; Long Backup Time (LBT) models provide up to 10A.
- Battery: Sealed Lead Acid Battery for backup power.
- Output filter: Output filtering board to provide clean power to the loads.
The UPS can be configured with up to 4 units in parallel, offering increased power capacity and redundancy for enhanced reliability. It also supports external battery cabinets (LBT versions) with reinforced battery chargers for extended backup times.
Important Technical Specifications
The ZGR Tower Pro 6-10 KVA models are available in 6 KVA and 10 KVA capacities, with corresponding Long Backup Time (LBT) versions.
- Input: Single-phase with Ground
- Nominal voltage: 220 / 230 / 240 Vac
- Voltage range: 165 - 276 Vac
- Rated frequency: 50 Hz / 60 Hz Automatically selected
- Frequency range: 45 - 65 Hz
- Power factor: ≥0.99 (input THDV ≤ 1%)
- Bypass voltage range: Min - default: 45% (20%, 30%, 45%); Max - default: +25% (+10%, +15%, 20%, 25%)
- Bypass frequency range: ±1 %, ±2 %, ±4 %, ±5 %, ±10 %
- THDI: ≤ 3% (100% linear load, input THDV ≤ 1%); ≤ 5% (100% non-linear load, input THDV ≤ 1%)
Output Electrical Characteristics:
- Output type: Single-phase with Ground
- Rated voltage: 220 / 230 / 240 Vac (can be set)
- Voltage regulation: ±1.0 %
- Power factor: 1.0
- Crest factor: 3:1
- Harmonic distortion (THDV): Less than 2% at 100% linear load; Less than 5% at 100% non-linear load
- Waveform: Pure Sinewave
- Transfer time: AC Mode - Batt mode: 0 ms; Inverter - Bypass: 0 ms
- Efficiency AC mode: ≥ 93 %
Batteries:
- Battery type: VRLA
- No. Battery: 16 / 18 / 20 pcs, adjustable
- Charge model: Boost charge or float charge auto switch
- Charge time: Boost charge up to 20HR (max.)
- Charge current (max.): 10 A
System Characteristics:
- Frequency regulation: ±0.1 % (stand-alone); ±0.25 % (parallel operation)
- Frequency: Utility mode: tracking mains frequency; Battery mode: 50 Hz / 60 Hz settable
- Frequency track speed: 1 Hz/s (stand-alone); 3 Hz/s (parallel operation)
- Overload capacity: 105 % ~ 110 %, 10 minutes; 110% ~ 130%, lasts 1 minute; > 130%, switch to bypass immediately
- Overload to bypass: > 95% event, cannot inverter-fed
- Dynamic respond: ≤ 5 % in a cycle
- Inverter output current limit: When current instantaneous value is 2 ~ 3 times of rated current peaks (1.414 * rated power / (3 * 220)), the inverter will be conducted in each pulse current limit protection.
- DC component: ≤ 20 mV
- Parallel circumference: 1+1 ≤ 2 %, N+1 ≤ 3 %
- Parallel equal current: 1+1 ≤ 8 %, N+1 ≤ 10 %
- EPO (Emergency Power Off): Shut down UPS immediately
- Surge: Meet IEC61000-4-5: 1.2/50us:8/20us: 6kV/3kA.
- Audible & Visual alarms: The Failure, Battery low, Overload, System Fault
- Communications: USB or RS232, SNMP card (optional), Relay card (optional)
Environmental and Mechanic Characteristics:
- Protection: IP20
- Noise level (at 1m): < 50 dBA
- Operating temperature: 0 °C ~ 40 °C
- Storage temperature: -25 °C ~ 55 °C
- Relative humidity: 0 ~ 95% (non-condensing)
- Altitude max: < 1500 m (without power reduction)
- Dimensions (W x H x D): 191 x 720 x 483 mm (6 KVA); 191 x 770 x 483 mm (10 KVA)
- Approx. Weight: 69 kg (6 KVA); 77 kg (10 KVA)
Usage Features
The ZGR Tower Pro 6-10 KVA is designed for ease of use and comprehensive monitoring.
Installation:
- Reception of material: Upon receiving the UPS, it's crucial to inspect for any damage during transport and verify all items against the delivery note.
- Installation conditions: The UPS should be placed in a clean, dust-free environment with adequate ventilation. It requires protection against dust, excessive humidity, heat sources, and direct sunlight. The maximum altitude for operation is 1500 meters without power reduction.
- Mechanical installation: The UPS should be placed on a flat and stable surface, ensuring at least 20 cm of space from walls or other objects for proper ventilation.
- Electrical installation: This involves connecting the UPS to the utility, output, and external batteries (if applicable). Double-pole MCB switches are recommended for input and output. All electrical connections must be made by qualified personnel.
Operation:
- Start up and turn off UPS: The UPS supports various operating modes including Normal, Battery, Bypass, ECO, Parallel redundancy, and Parallel.
- Initial start-up: This involves connecting to the utility, performing a cold start procedure (if necessary), and connecting/disconnecting from the utility.
- LCD control panel: The LCD panel provides detailed information on input, output, battery, and UPS status, including voltage, frequency, current, temperature, load, and various alarms.
- Parameters setting: Users can configure various parameters through the LCD panel, such as operation mode (Normal, ECO, CF), output voltage, output frequency, battery capacity, battery number/quantity, bypass high/low level switch settings, buzzer mute, battery test, parallel ID, parallel quantity, and parallel redundancy quantity.
Communications:
- The UPS can be connected to a PC via USB or RS232 for monitoring and management using Zigor's UPSilon2000 Power Management software. This software allows users to monitor UPS power status, alarm info, running parameters, and set timing on/off.
- An optional SNMP card or Relay card can be installed for network communication.
Troubleshooting:
- The manual provides a comprehensive troubleshooting guide with possible causes and solutions for common symptoms like battery LED flashes, mains normal but UPS has no input, short back up time, and no AC power after pressing the ON key.
Maintenance Features
Regular maintenance is crucial to ensure the optimal performance and longevity of the ZGR Tower Pro 6-10 KVA.
General Maintenance:
- Preventive maintenance: ZIGOR recommends periodic maintenance to prevent breakdowns and ensure correct operation.
- Maintenance tasks: These include visual control of operation (LEDs, LCD, alarms), control of event history, checking ventilation, cleaning of components, checking electrical connections, and verifying the status of connecting wires.
- Service schedule: The frequency of maintenance tasks depends on factors like temperature, dust, suspension, and the overall environment.
- Battery maintenance: Batteries are critical components and require specific attention.
- Replacement: Batteries should be replaced by qualified personnel.
- Storage: Batteries should be stored in a cool, dry location and recharged every 3 months.
- Lifespan: The typical battery lifespan is three to five years.
- Disposal: Old batteries must be disposed of according to local regulations.
- Periodic discharges: To maintain battery health, periodic discharges (every six months) are recommended.
Safety Precautions:
- The manual emphasizes safety warnings, including the risk of electric shock and the importance of qualified personnel for installation and maintenance.
- It provides guidelines for safe handling of batteries, including avoiding short circuits, wearing protective gear, and not placing tools on batteries.
Environmental Precautions:
- The UPS and its batteries must be disposed of according to local environmental regulations, as indicated by the WEEE directive. ZIGOR encourages recycling and proper management of electronic waste.
The ZGR Tower Pro 6-10 KVA is a robust and feature-rich UPS designed to provide reliable, high-quality power protection for various applications, backed by comprehensive technical specifications and detailed maintenance guidelines.
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