NEC Relay EE2-12TNU

12/25/2024

Squirrel Cage Induction Motor Vs Wound Rotor Induction Motor: Rotor Structure, Pros and Cons

The three-phase induction motor consists of two basic parts: the stator and the rotor.

08/02/2020

What should I do if the geothermal exhaust valve leaks

Water leakage from the geothermal exhaust valve is very common. Under normal circumstances, when the heating is first delivered in winter, the geothermal pipe needs to be exhausted so that the exhaust can make the heating of the underfloor heating loop uniform.

03/24/2023

Working Principles of Common Vacuum Pumps

The vacuum pump is a device that vacuumizes the pumped container under the action of electromagnetic force to maintain the vacuum. Vacuum pumps are usually widely used in low temperature equipment, papermaking machinery, vacuum equipment, and petroleum, mining, foundation treatment and other fields.

06/14/2020

About the basics, principles and classification of air-conditioning compressors, 90% of them will definitely collect them after reading!

About the basics, principles and classification of air-conditioning compressors, 90% of them will definitely collect them after reading! Basic knowledge 1. Installation location The compressor is installed on the right side of the outdoor unit and 器2䀀
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08/05/2020

In the hot summer, be wary of the 5+X hidden dangers of cold storage

With Chinese economic and social development and the continuous improvement of people’s living standards, the cold chain logistics industry has obtained unprecedented development opportunities.

10/07/2025

Why is Your Refrigerator Start Relay Bad

Refrigerators have been necessary for people’s daily life and there are probably some problems with your refrigerators

07/07/2020

Earth Hour: Hitachi Central Air Conditioner works with you to speak for the earth

09/01/2025

How to Distinguish Different Types of Fans in Data Centers

Without fans, it is impossible to ensure that equipment components operate at a constant temperature. Long-term continuous high-temperature operation of equipment will accelerate the aging of components and shorten the life cycle of equipment operation.

06/14/2020

Types and selection criteria of control valves for refrigeration equipment The first thing to know is what is a control valve? A control valve, also known as a control valve, is mainly used in the field of industrial automation process control. Its functi

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07/31/2020

The weather is getting colder and you need to pay attention to these hidden dangers when using air conditioners!

Soon after the summer ends, it feels like a direct transition to winter. The weather began to cool down, and many families began to use air-conditioning and other heating equipment one after another.