ABB INPUT OUTPUT Module 3HAC025784-001

08/14/2020

What are the parts of the electrical installation of cold storage engineering installation

What are the parts of the electrical installation of cold storage engineering installation The electrical installation of cold storage engineering can include overhead lines, lighting, cables, machine room wiring, workshop or factory area power transformation and distribution.

08/07/2020

Working principle of frequency converter

　Inverters can be divided into voltage type and current type inverters.<br></br> 　　 Voltage type is an inverter that converts the DC of a voltage source to AC. The filtering of the DC loop is a current type that converts the DC of the current source to AŒ

06/30/2023

Cooling Systems Compared: Inverter AC vs Fixed Speed AC - Which One Should You Choose?

Air conditioning systems have become an essential part of our daily lives, providing relief from the oppressive heat and humidity of summer.

07/03/2024

Proportional Valve vs. Solenoid Valve vs. Servo Valve

The way the valve controls the fluid can be divided into two types: one is on/off control, either fully open or fully closed. Examples for this type of valve include ordinary direct-acting solenoid valves, solenoid-operated directional valves, electro-hydraulic directional valves, etc.

08/17/2020

Air conditioning unit filter and heat exchange equipment dust and scale treatment method

Summary: Dust and fouling occur on filters and heat exchangers, which are not economical for the operation of air conditioning units and cannot guarantee normal use requirements.

01/08/2025

17 centrifugal compressor manufacturers,in the world. how many do you know

In the past decade, under the background of economic globalization and fierce competition, the centrifugal compressor manufacturing industry has also undergone continuous mergers and acquisitions and reorganizations. In 2000, the Japanese company EBARA pu�器2�䀀�������
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06/29/2020

Suggestions for troubleshooting of compressor with liquid start

08/02/2020

Is the length of the air conditioning copper pipe as long as possible

Air conditioners are a very common electrical appliance at home. After buying an air conditioner, many people will find the manufacturer's master to install it. After all, this kind of professional electrical installation project is still relatively complicated

07/13/2020

Danfoss medium temperature refrigeration compressor M series

liquid 1. Liquid back: When the refrigerant returned to the compressor is not a pure gas state, but contains liquid, the influence of the liquid refrigerant on the compressor is negative. If there is too much liquid, it may even cause liquid shock, even if there is no liquid shock, it will happen. Wet compression causes oil to run away.

07/05/2020

Why is frost formed between the electronic expansion valve and the compressor

Why is frost formed between the electronic expansion valve and the compressor? A customer asked: The compressor is suddenly not cooling, and the electronic expansion valve is frosted to the compressor. Is there any relationship between the two before?