ถ้าเครื่องสำรองไฟที่ใช้กับ computer จะเรียกว่า UPS ครับ uninterruptible power supply ส่วนถ้าเป็น power supply น่าจะเป็นเครื่องกำเนิดไฟฟ้ามากกว่าครับ อย่างเช่นใน computer ก็จะมีตัวนี้อยู่ข้างใน เวลาที่ไฟไม่เข้าเครื่องก็สามารถเปลี่ยนเฉพาะตัว power supply ได้ครับ
Short for uninterruptible power supply, a power supply that includes a battery to maintain power in the event of a power outage. Typically, a UPS keeps a computer running for several minutes after a power outage, enabling you to save data that is in RAM and shut down the computer gracefully. Many UPSs now offer a software component that enables you to automate backup and shut down procedures in case there's a power failure while you're away from the computer.
พี่ดา ลองไปค้นดู ได้มาอย่างเนี้ยะค่ะ A dropout / brownout พอกล้อมแกล้มใช้ได้มั้ย หรือว่าเป็นศัพท์เฉพาะก็ไม่ทราบนะคะ
A power outage (also known as a power cut, power failure, power loss, or blackout) is a short- or long-term loss of the electric power to an area.
There are many causes of power failures in an electricity network. Examples of these causes include, faults at power stations, damage to power lines, substations or other parts of the distribution system, a short circuit, or the overloading of electricity mains.
Blackout.
Power outages are categorized into three different phenomena, relating to the duration and effect of the outage:
* A dropout is a momentary (usually less than one second) loss of power typically caused by a temporary fault on a power line. Power is quickly (and sometimes automatically) restored once the fault is cleared.
* A brownout or sag is a drop in voltage in an electrical power supply. The term brownout comes from the dimming experienced by lighting when the voltage sags.
* A blackout refers to the total loss of power to an area and is the most severe form of power outage that can occur. Blackouts which result from or result in power stations tripping are particularly difficult to recover from quickly. Outages may last from a few hours to a few weeks depending on the nature of the blackout and the configuration of the electrical network.
รัตน์ พี่ว่าA dropout is a momentary (usually less than one second) loss of power typically caused by a temporary fault on a power line. Power is quickly (and sometimes automatically) restored once the fault is cleared.