Santak SPU 20kVA Power-Specific Uninterruptible UPS Power Supply 20kVA

Product details

The Santak SPU 20kVA power-specific UPS power supply is based on over 30 years of technical expertise in the power industry, specifically developed for harsh scenarios such as power plants and substations. The device adopts DC bus direct connection technology, allowing direct connection to 110/220V DC power systems in substations, eliminating the need for additional battery configurations and reducing maintenance costs by over 40%. When dealing with critical loads such as DCS control systems in power plants and dispatch communication systems in substations, its 380V±25% wide-range AC input and DC180-270V DC input capabilities can handle severe grid voltage fluctuations with ease. The unique inverter overload bypass function ensures safe operation even under 150% load impact.In high-temperature dust environments of thermal power plants or high-humidity salt spray scenarios at coastal substations, the SPU series ensures stable operation under harsh conditions such as vibration and corrosive gases, thanks to its IP42-rated enclosure and wide-temperature operation design (-10°C to 50°C). The device features a built-in output isolation transformer for electrical separation between the grid and the load, coupled with 0.125ms transient response technology, delivering pure power with waveform distortion <3% for precision power monitoring equipment. When facing lightning surge impacts, the optional EN50091-2 certified filter reduces electromagnetic interference to 1/5 of industry standards, safeguarding sensitive equipment like microprocessor-based protection devices.In terms of technical specifications, this model supports three-phase AC input and dual DC input modes, with an output efficiency exceeding 83%. It comes standard with multiple safety mechanisms, including low-voltage automatic shutdown and short-circuit current limiting protection. In typical substation applications, its 20kVA capacity can simultaneously support relay protection devices, fault recording systems, and communication equipment, achieving N+1 redundancy through intelligent parallel operation, providing reliable power assurance for smart grid construction. For the unique humid environments of hydropower plants, a special anti-condensation design ensures the device maintains an MTBF of over 100,000 hours even under 95% humidity, making it the preferred power solution for critical infrastructure in the power industry.

Product Parameters

Model:Power-specific UPS SPU 20kVA
Rated Capacity:20kVA
DC Source (DC220V):Y
DC Source (DC110V):Y
Input AC Single Phase (1P):N
Input Voltage:/
Input AC Three Phase (3P):Y (supports DC220V only)
Input Voltage:380V±25%
Input Frequency:50Hz/60Hz ±10%
Input DC Voltage and Range:DC220V (Rated) DC180V~DC270V DC110V (Rated) DC90~DC135V
Output Voltage and Accuracy:AC220±1% (1P2W)
Output Frequency:50Hz/60Hz ±0.1%
Output Waveform Distortion Rate:<3% (Linear Load), <5% (Non-linear Load)
Output Overload Capacity:<=100% Continuous Load 100%~120% 10 Minutes Transfer to Bypass 120%~150%, 60 Seconds Transfer to Bypass ≥150%, 1 Second Transfer to Bypass
Output Power Factor:0.7
Output Crest Factor:0.125694444
Output Efficiency:≥83%
Protection Function Battery:Battery Low Voltage Auto Shutdown, Circuit Breaker Protection
Protection Function Overload Capacity:Transfer to bypass after overload, automatically recover after load reduction
Protection Function Short Circuit:Current limit auto shutdown, fuse and circuit breaker protection
Protection Function Fault:Fault or internal overtemperature, automatically transfer to bypass and alarm
Protection Function Frequency:50Hz/60Hz ±10%
Protection Function EMI/EMC:EN50091-2 Approved (optional filter)