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28
Jul
MOTOR POLES & RPM & HZ
The speed a synchronous motor will run can be determined by the number of poles of the motor and the frequency of the electrical service using the formula: RPM = Hz* (2 / poles) * 60 where RPM = shaft rotation speed or revolutions per minute Hz =... read more
13
Out
(English) Can you explain your advantages?
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21
Abr
(English) Is there an exact way to solve the misty construction site?
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07
Mai
(English) Why is the bad smell disappear from our factory? Where did they go?
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11
Jun
(English) How to calculate surface area range of mining ventilation?
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21
Mar
What is the Fan Characteristics Curve ?
Fan Characteristic Curve stands for the relationship between volumetric flow rate and the pressure drop across the fan (static pressure), which is described by the fan characteristic curve. It is usually provided by the fan manufacturer. Below table shows a characteristic curve for a common... read more
04
Abr
Motors efficiency ratings
The efficiency of an electrical motor is the ratio of mechanical power output to the electric power input. IE = International Efficiency : IE1 (Standard Efficiency) IE2 (High Efficiency) IE3 (Premium Efficiency) IE4 (Super Premium Efficiency) read more
28
Set
(English) What‘s the water consumption of Evaporator?
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27
Jul
Centrifugal fans impellers types.
Centrifugal fans impellers or blades can be divided in to following several types with different functions and specific purpose: Radial Blades These are high-pressure fans with medium airflow. Radial-bladed fans are best for industrial applications where there is dust, or in environments where there is gas or moisture... read more
26
Set
(English) Do you know how to choose the suitable chiller?
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