欧美婷婷综合-欧美图片一区二区三区-欧美网站在线观看-欧美污污网站-成人网在线视频-成人网在线看

AC source power & DC source power manufacturing factory

Calculating method of alarm current

As we all know, the capacity selection of AC power supply equipment is very important.choosing the right AC power supply is very important for production, manufacturing, testing and R&D!

excessive capacity selection will increase unnecessary property investment; too small capacity selection will affect the normal production, testing and R&D process and even lead to unusable.

therefore, mastering and understanding the calculation of alarm current will clearly know how to choose the capacity of AC power supply equipment. Suitable power supply equipment will make people feel like a tiger!

AC power supply is divided into single-phase power supply and three-phase power supply according to the different output power.therefore, the calculation method of alarm current can also be divided into two kinds: single-phase power supply and three-phase power supply.
the following are introduced separately:

One:Single-phase power supply
Output 0-300V: divided into low and high gear.the alarm current of low-voltage gear is 120 V, and that of high-voltage gear is 240V. capacity (VA)/gear voltage (V)=gear alarm current (A).

Take 5KVA power supply as an example: 5000VA (capacity)/120V (low grade)≈42A; 5000VA/240V (high grade)≈21A.so we get the alarm current: the output of 5KVA power supply is in the range of 0 -150V, the maximum alarm (limit) current is 42A; the output of 5KVA power supply is in the range of 0 -300V, and the maximum alarm (limit) current is 21A.

Output 0-600V, low-grade 240V, high-grade 480V, the same method to get the alarm current of 21/10.5A.
The simple method is that we only need to calculate the low-grade or high-grade alarm current. Another kind of alarm current can be obtained immediately according to the low-grade alarm current = 2 times the high-grade alarm current

Two: Three-phase power supply
The alarm current is a single-phase alarm current, so the three-phase power supply needs capacity/3 to get the single-phase capacity, and then according to the calculation method of the alarm current of the single-phase power supply, the alarm current of the three-phase power supply can be obtained.

Take three-phase 15KVA power supply as an example: 15KVA/3 = 5KVA, 5000VA/120V≈42A (low-grade alarm current), 42A/2 ≈21A (high-grade alarm current).therefore, the alarm current of three-phase 15KVA power supply is 42/21A.

It is not difficult to find that the calculation of alarm current focuses on the unit of capacity is VA, the unit of voltage is V, and the unit of alarm current is A. Therefore, if the known unit of capacity is KVA, the unit of KVA should be converted to VA when calculating the alarm current. 1KVA is 1000VA.
Recommend Products
Online service
Service Hotline
86-769-89616802
86-13602353727

ADMIRE POWER
主站蜘蛛池模板: 中文字幕一区在线播放 | 成人 欧美 | 最新亚洲人成网站在线影院 | 国产成人精品一区二区免费 | 理论片中文字幕 | 国产精品亚洲精品日韩已满 | 国产亚洲一区二区手机在线观看 | 91在线精品亚洲一区二区 | 久草视频免费在线 | 国产在线91精品天天更新 | 久久亚洲不卡一区二区 | 欧美一区中文字幕 | 美女很黄很黄是免费的·无遮挡网站 | 国产三级日本三级在线播放 | 中国一级做a爰片久久毛片 中日韩欧美一级毛片 | 欧美成人视屏 | 免费小视频在线观看 | 久久婷五月天 | 久久欧美久久欧美精品 | 8888奇米四色在线 | 日韩a毛片| 久草免费看 | 美女一级毛片免费看看 | 成人久久影院 | 国产成人精品s8p视频 | 国产成人欧美一区二区三区的 | 国产亚洲精品久久久久久午夜 | 草在线视频 | 亚洲女精品一区二区三区 | 狠狠色丁香婷婷综合久久片 | 一级a欧美毛片 | 巴西一级毛片 | 在线观看日韩www视频免费 | 亚洲欧美日韩一级特黄在线 | 日韩美女在线看免费观看 | 91亚洲精品国产第一区 | 中文字幕乱码在线观看 | 日本成人在线视频网站 | 在线观看日本免费视频大片一区 | 99久久国产免费福利 | 亚洲精品午夜在线观看 |