Schneider Sensor XS1N18PC410P
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09/18/2020
List of foreign medium and high pressure compressors in the Chinese market
When it comes to high-pressure compressors, they are not commonly used air compressors. They are widely used in pressure testing, chemical, bottle blowing, engineering, energy, electric power, military, medical and other industries. The general batch is relatively small, and domestic I think the high-pressure machine market is still in a budding state, and there is no more good capital and technical force to invest in this aspect of production;
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06/20/2020
What are the causes of air conditioning trip
What are the causes of air conditioning trip 1. The contradiction between the rated current of the air conditioner and the current carrying capacity of the wire. Here are two formulas involved: ①The rated current of air conditioner I=P÷U ÷power factor, the power remains unchanged, the smaller the voltage, the greater the current required. ② The current carrying capacity of the wire I=U÷R, the voltage is proportional to the current. So when the power supply voltage is normal, we must consider the line voltage drop. The longer the line, the greater the resistance, the greater the voltage drop, and the smaller the output current at the end. However, because the power of the load remains unchanged, the voltage becomes smaller, and the current that needs to be output will be larger. At this time, the wire is forced to overload, and the time will cause heating, and eventually cause the tripping of the open circuit. Some friends said that the heat of the wire will not cause the tripping of the circuit breaker. In fact, the manufacturer of the air switch has made it clear in the relevant manuals that the heat of the wire will cause the air switch to trip. Because the wire heats up, the crimp terminal will also heat up, and the resistance will become larger and larger. The larger the resistance, the greater the current consumption, and the hotter it will be, a vicious cycle. 2. Leakage During the daily maintenance work, we will encounter the situation that the air circuit trips due to the leakage of electricity. At least I have not experienced it once or twice. Regardless of the leakage of the neutral line or the leakage of the live line, a long time will cause the circuit breaker to trip. Why does the electric leakage cause the MCB to trip? There are two situations. ① Good grounding. At the beginning, the leakage current was not large, and as time went by, the leakage current became larger and larger, and eventually evolved into a short circuit to ground, unable to close. ②There is no ground wire. If the equipment is not connected to the protective ground, when the wire leaks to the equipment, it is equivalent to adding a large shunt resistance. Like this problem, if the air conditioner does not have a ground wire, when the wire leaks to the air conditioner, the air conditioner is a very large shunt resistor and will consume a lot of current. Eventually, the wire will heat up or trip open. How to determine whether the trip caused by the above two aspects can be done with a clamp ammeter. ① Measure the voltage at the input and output to see if there is a significant change in voltage drop. ②Measure whether the output current exceeds the standard. So my suggestion is: first measure the supply voltage to see if it is within the allowable fluctuation range. Then measure the current to see if it exceeds the rated ampacity of the wire. Finally, check the data one by one according to the measured data to find out the reason.
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07/29/2020
Nine refrigerant leakage locations and solutions
There are many welds on the left and right sides of the evaporator, and there may be more leaks. The leak of the newly installed air conditioner is mainly due to the poor welding skills of the employees of the air conditioner manufacturer.
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09/18/2021
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Causes of noise in circular cooling towers and noise reduction measures<br></br> Many people find that the noise is loud after purchasing a circular cooling tower. How do these noises occur? Let’s analyze it for you today.
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09/10/2020
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The inverse ratio valve is used in conjunction with the disc air intake control. When the system pressure increases due to the decrease in air consumption and reaches the set pressure of the inverse ratio valve, the inverse ratio valve acts and reduces the control air output.
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09/17/2020
Application of the counting machine
Due to the impact of GMP certification on the pharmaceutical machinery industry, the purchase of equipment by domestic users has shrunk severely in the past one or two years, so that the survival problem facing equipment manufacturing is quite cruel:
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03/11/2022
Why are Your Refrigerating Machine and Compressor Making Abnormal Noises?
The operation sound of the refrigerating machine is unavoidable. The fan rotating, fan blade rubbing with the air would make the noise that is normal.
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06/14/2020
Basic knowledge of refrigeration compressors
Compressor, a driven fluid machine that raises low-pressure gas to high-pressure gas. It is the heart of the refrigeration system. It sucks low-temperature and low-pressure refrigerant gas from the suction pipe, drives the piston to compress it through th ﰸ2 䀀 ᅵ皥 䖒皦즠Ʋ娼ི 㲈Ʋ 䌁皦隆 ᮔDž༬皧婆ིЀ 呄ᠾ鹨់༹皧 ࠄ 00븹먱댁珵理뛐珵Љ 䕄ྦ 뤂ᐱ變뚜珵 ᴴᏩ呄ᠾ퍘ᒥ 鹨់變ᩄ ꋔྦ 瑉浥 巠皱㙲皦抐皱 巠皱 ੨皦柘皱 ᅵ皥 ب 巠皱㙲皦忈皱 ੨皦柘皱 즠Ʋǜ 勁皦즠Ʋب ǜ V / 펔B䌁皦 ᮔDž '鱤džቜ먢䇨珵呈ᠾ뤂ᐱ ⬿먲僧ᐱ靖㥲ᐲ�僬㣢ᐲ ᠾ 靖랖僧Վ ﯼ靖 �僬㣢ᐲ 臆S㥲ᐲ ᬄğ ﯼ戴 ﯤ艏S練杴 ﯼ杴 㥲ᐲ
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06/14/2020
Scientists use magnetic fields and deformed alloys to develop refrigeration systems
Scientists use magnetic fields and deformed alloys to develop refrigeration systems Apart from redundant functions such as touch screens and built-in cameras, basic refrigerator technology has not changed much in decades.