Danfoss Compressor SM090T4PAC

04/10/2024

Servo Control, Step Control and Variable Frequency Control: Detailed Explanation of the Three Major Controls

The following introduces the working principle, structure, types and application of the three major control methods of servo, step and variable frequency.

09/05/2020

The technical core that affects the development and use of cold dryers

The application of refrigeration dryers is very extensive. This article is to describe the core technology, important fields and development directions of refrigeration dryers to describe the core of the technology that affects the development and use of refrigeration dryers.

06/14/2020

Technical status and development trend of refrigeration and air-conditioning compressors

Refrigeration machinery and air conditioning equipment play a very important role in the development of the national economy, the improvement of people's lives and the support of national defense equipment.

06/29/2020

What is the cause of compressor pipeline vibration

09/07/2020

What are the advantages and characteristics of power frequency screw air compressors

What are the advantages and characteristics of power frequency screw air compressors? 　　 Power frequency screw air compressor adopts high-efficiency host The industrial frequency screw air compressor adopts the industry-leading screw main engine,

06/28/2020

Trouble analysis and elimination of semi-hermetic compressor motor

Trouble analysis and elimination of semi-hermetic compressor motor Abstract：Semi—hermetic compressor often be used in the water—cooling unit of air conditioning system，and it’S motor which work in rather high temperature and pressure condition，even work with refrigerator and oil， has a poor working condition．

01/15/2021

How to clean the air conditioner

Cleaning the external unit of the air conditioner is conducive to improving the operating efficiency of the air conditioner and extending the service life. How to clean the air conditioner external machine, what problems should be paid attention to when c器2䀀
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08/19/2020

How to clean air conditioner filter

The use of air conditioners is not unfamiliar to everyone. With the continuous improvement of people’s living standards, air conditioners have been popularized in every family, and the

09/14/2020

Analysis of the consequences of refrigerant liquid entering the compressor

When the refrigerant liquid entering the evaporator is too much or the evaporation pressure is too low, the cold The medium liquid will be sucked into the compressor. Since the refrigerant liquid is incompressible,

03/02/2021

Related technical terms

1.Positioning or residual torque: when there is no current passing through the winding, the torque required to make the output shaft of the motor rotate. 2.Driver: an electrical control device used to run the stepping motor. This includes power supply, logic programmer, switching element and a variable frequency pulse source which determines the step rate. 3.Dynamic torque: the torque produced by the motor at a certain step rate. The dynamic torque can be expressed by PULL IN torque or PULL OUT torque.