Technical Specifications
| Parameter | Details |
|---|---|
| Topology | True double-conversion online UPS with isolation transformer |
| Output Waveform | Pure sine wave |
| Input Phase | Single phase with ground |
| Output Phase | Single phase |
| Input Voltage (Nominal) | 200/208/220/230/240 VAC |
| Input Voltage Range | 110–280 V (wide acceptance range) |
| Low Line Transfer | 160/140/120/110 VAC ±5% (based on load percentage) |
| High Line Transfer | 300 VAC ±5% |
| Input Frequency Range | 40–70 Hz |
| Input Power Factor | 0.99 @ nominal voltage (100% load) |
| Output Voltage | 200/208/220/230/240 VAC ±1% |
| Output Power Factor | 0.8 |
| Output Frequency (Synchronized) | 47–53 Hz or 57–63 Hz |
| Output Frequency (Battery Mode) | 50 Hz or 60 Hz ±0.1 Hz |
| Current Crest Ratio | 3:1 |
| Total Harmonic Distortion (THD) | 3% (Linear Load), 5% (Non-linear Load) |
Battery System
| Parameter | Details |
|---|---|
| DC Bus Voltage | 96 V DC |
| Number of Batteries | 8 batteries (12V each) |
| Battery Type | SMF VRLA / Tubular (depending on applications) |
| Charging Current | 2A/4A/8A/12A (Adjustable, up to 12A max) |
| Charging Voltage | 109.4 VDC ±1% |
| Battery Configuration | External battery pack |
Physical Specifications
| Attribute | Value |
|---|---|
| Dimensions (D × W × H) | 397 × 145 × 332 mm |
| Weight | 21 kg (approx.) |
| Color | Black |
| Form Factor | Tower model |
Efficiency & Transfer Time
| Parameter | Details |
|---|---|
| AC to DC Efficiency | 85% max |
| Inverter to Bypass Transfer Time | 4 ms (typical) |
| Transfer Time (To Battery Mode) | Zero (true online operation) |
Key Features
| Feature | Description |
|---|---|
| True Double-Conversion Topology | Continuous power conditioning with zero transfer time |
| Built-in Isolation Transformer | Enhanced electrical isolation and protection at output |
| Pure Sine Wave Output | Clean, stable power for sensitive electronic equipment |
| Microprocessor Control | Optimizes reliability and performance |
| Input Power Factor Correction | Improves input power quality (PF 0.99) |
| Wide Input Voltage Range | 110–280 V AC acceptance for poor grid conditions |
| Wide Input Frequency Range | 40–70 Hz for generator compatibility |
| ECO Mode | Energy-saving mode for additional efficiency |
| Generator Compatible | Seamless operation with diesel generators |
| Wide Temperature Application | 0–50°C operating range (0–40°C @ full load, 40–50°C @ 80% load) |
| Selectable Charging Current | Adjustable from 2A to 12A for battery flexibility |
| Automatic Bypass | Intelligent failover during overload or fault |
| Emergency Power Off (EPO) | Safety shutdown feature |
| Comprehensive LCD Display | Easy monitoring and access to UPS status |
Protection Features
| Protection Type | Details |
|---|---|
| Overload Protection | Automatic bypass during excessive load conditions |
| Short Circuit Protection | Immediate fault isolation |
| Battery Protection | Deep discharge and overcharge protection |
| Low Battery Alarm | Audio/visual warning when battery is low |
| Surge Protection | Guards against voltage spikes and transients |
| Thermal Protection | Over-temperature monitoring and protection |
Display & Indicators (LCD)
| Indicator | Function |
|---|---|
| Load Level | Shows current load percentage |
| Battery Level | Displays remaining battery capacity |
| AC Mode | Normal utility power operation |
| Battery Mode | Operating on battery backup |
| Bypass Mode | UPS in bypass operation |
| Fault Indicators | Error/fault condition alerts |
Alarm System
| Alarm Type | Pattern |
|---|---|
| Battery Mode | Sounding every 4 seconds |
| Low Battery | Sounding every second |
| Overload | Sounding twice every second |
| Fault | Continuously sounding |
Management & Communication
| Feature | Details |
|---|---|
| Standard Interface | Smart RS-232/USB port |
| Optional SNMP Card | Available for network management |
| Operating System Support | Windows 2000/2003/XP/Vista/2008/7/8, Linux, Unix, MAC |
| Remote Management | Power management via SNMP manager and web browser |
Environmental Specifications
| Parameter | Value |
|---|---|
| Operating Temperature | 0–50°C (0–40°C @ full load / 40–50°C @ 80% load) |
| Operating Humidity | 0–90% RH (non-condensing) |
| Noise Level | Less than 55 dBA @ 1 meter |
Applications
| Use Case | Suitability |
|---|---|
| IT Equipment | Computers, servers, printers, monitors, networking switches |
| Industrial Control | Process controls, testing & measuring instruments |
| Medical Facilities | Electronic healthcare equipment, life-support systems |
| Banking & Financial | ATMs, branch offices, transaction systems |
| Safety Systems | Power stations, security lighting, control centers |
| Audio-Visual | Professional AV equipment, broadcast systems |
| Data Centers | Server closets, small data centers, wiring closets |
| Enterprise Applications | Remote branches, critical computing infrastructure |
Special Features – Isolation Transformer Benefits
| Benefit | Description |
|---|---|
| Electrical Isolation | Complete galvanic isolation between input and output |
| Noise Reduction | Eliminates electrical noise and interference |
| Surge Suppression | Enhanced protection against voltage spikes |
| Ground Loop Elimination | Prevents ground-related electrical problems |
| Enhanced Safety | Additional layer of protection for sensitive equipment |
| Compliance | Meets stringent requirements for medical and critical applications |
Model Comparison
| Feature | LD2000 | LD2000T | LD2000IN |
|---|---|---|---|
| Isolation Transformer | Optional | Built-in | Optional |
| Battery Configuration | External (6×12V) | External (8×12V) | Internal (6×12V) |
| DC Bus Voltage | 72V | 96V | 72V |
| Weight | ~9.8 kg | 21 kg | 26 kg |
| Best For | Standard backup | Harsh environments | Integrated solution |
Warranty
| Component | Period |
|---|---|
| UPS Electronics | 24 months |
| Batteries | As per manufacturer (typically 12 months) |
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