What is a 3-phase UPS?
Introduction:
An uninterruptible power supply (UPS) is used to protect critical loads from electrical power disturbances or outages. A 3-phase UPS is used to protect larger loads, typically 10 kW to several MW, which use 3-phase power distribution. A single-phase UPS is used to protect smaller loads, typically less than 10 kW.
3-phase UPSs are used for a wide range of applications:
3-phase UPS technologies:
The most common mode of operation in 3-phase UPSs is called Online Double Conversion. It delivers the highest level of power quality and is historically used to protect critical loads.
In Online Double Conversion mode, the incoming power is converted through an input PFC rectifier stage to DC (direct current) and then converted back to AC (alternating current) by an output inverter. This allows the inverter to generate perfect output power to the load, independent of any voltage and frequency fluctuations on the main power supply.
Batteries are connected to the DC bus and ensure zero transfer time to battery operation when AC input fails. In that case, power supply is delivered by the batteries through the inverter. When AC input power is restored, the PFC rectifier resumes carrying the load and begins charging the batteries.
An increasingly common mode of operation in Schneider Electric 3-phase UPSs is called eConversion mode. It optimizes UPS efficiency while delivering advanced power quality and zero transfer time to double conversion mode or battery operation when AC input power quality fluctuates outside normal operating ranges.
Discover more on our 3-phase UPS product page and eConversion solution page .
An uninterruptible power supply (UPS) is used to protect critical loads from electrical power disturbances or outages. A 3-phase UPS is used to protect larger loads, typically 10 kW to several MW, which use 3-phase power distribution. A single-phase UPS is used to protect smaller loads, typically less than 10 kW.
3-phase UPSs are used for a wide range of applications:
- Data centers, colocation facilities, and computer rooms
- Light industry and commercial buildings
- Telecommunications and networking
- Infrastructure and transportation
3-phase UPS technologies:
The most common mode of operation in 3-phase UPSs is called Online Double Conversion. It delivers the highest level of power quality and is historically used to protect critical loads.
In Online Double Conversion mode, the incoming power is converted through an input PFC rectifier stage to DC (direct current) and then converted back to AC (alternating current) by an output inverter. This allows the inverter to generate perfect output power to the load, independent of any voltage and frequency fluctuations on the main power supply.
Batteries are connected to the DC bus and ensure zero transfer time to battery operation when AC input fails. In that case, power supply is delivered by the batteries through the inverter. When AC input power is restored, the PFC rectifier resumes carrying the load and begins charging the batteries.
An increasingly common mode of operation in Schneider Electric 3-phase UPSs is called eConversion mode. It optimizes UPS efficiency while delivering advanced power quality and zero transfer time to double conversion mode or battery operation when AC input power quality fluctuates outside normal operating ranges.
Discover more on our 3-phase UPS product page and eConversion solution page .
發佈於: 施耐德電機Taiwan
需要協助？
產品選型工具
快速輕鬆地為您的應用找到合適的產品和附件。
取得報價
立即線上提交您的銷售需求，專業團隊將主動聯繫您。
購買地點
輕鬆在您所在地區找到最近的施耐德電機經銷商。
支援中心
在同一位置找到滿足您所有需求的支援資源。