UPS Main Module(8KVA/220V) with Pure Sine Wave Output Intelligent Microcomputer Control and Comprehensive Safety Protection
Principle Block Diagram of a Dedicated Power UPS
Power-specific UPS - Composition: input isolation transformer, input circuit breaker, rectifier, inverter, output isolation transformer, static bypass switch, DC input circuit breaker, DC isolation diode, control unit, display unit, communication unit
Principle Block Diagram of Power-Specific Inverter
Power-specific inverter - Components: DC input circuit breaker, DC isolation diode, inverter, output isolation transformer, static bypass switch, control unit, display unit, communication unit

| SH/1KVA /220V | SH/2KVA /220V | SH/3KVA /220V | SH/5KVA /220V | SH/8KVA /220V | SH/10KVA /220V |
|---|---|---|---|---|---|
| SH/1KVA /110V | SH/2KVA /110V | SH/3KVA /110V | SH/5KVA /110V | SH/8KVA /110V |
| Parameter | Specification |
|---|---|
| Voltage Range (Vac) | 220±20% |
| Frequency Range (Hz) | 50±5% |
| Number of Phases | Single-phase three-wire; Three-phase four-wire |
| DC Voltage (Vdc) | 110V or 220V |
| Output Capacity (KVA) | 1 | 2 | 3 | 5 | 8 | 10 |
|---|---|---|---|---|---|---|
| Voltage (Vac) | 220±1%, isolation transformer output | |||||
| Frequency (Hz) | Normal mains power: automatic synchronization and tracking; Power outage: output level 50±0.5% | |||||
| Waveform Distortion | Under linear load, THD ≤ 2% | |||||
| Phase Difference | Under mains power supply, phase difference between output and input ≤2° | |||||
| Static Bypass Switching Time (ms) | ≤2 | |||||
| Inversion Efficiency | DC Inverter: ≥87% | AC Inverter: ≥83% | ||||
| Dynamic Response and Recovery Time | During 100% load transient, output voltage variation ≥5%, recovers to within ±1% within 25 ms | |||||
| Overload Capacity | 100%-110%: alarm triggered; 110%-150%: alarm for 10 minutes then switch to bypass; >150%: switch to bypass in 1 second | |||||
| Load Peak Ratio | 3:1 | |||||
| Power Factor | 0.8 (lag) | |||||
| Feature | Specification |
|---|---|
| Stand-by Time | Determined by battery configuration |
| LCD Display | Input/output frequency, input/output voltage, battery voltage, charging voltage, load size, internal temperature |
| LED Indicators | Operation, fault, overload, inversion, and bypass |
| Alarm Function | Abnormal mains power, battery under-voltage, overload, UPS failure |
| Communication Features | Supports dry contact communication and RS485 (with isolation) for remote intelligent monitoring |
| Protection Functions | AC/DC overvoltage protection, overload protection, temperature protection, output overvoltage protection, output short-circuit protection |
| Insulation Voltage | AC 2kV, 1min |
| Electromagnetic Compatibility | EN50091-2 |
| Noise | <55 dB (one meter from front of housing) |
| Working Temperature | -10℃ to +40℃ |
| Ambient Humidity | 20-95%, no condensation |