Panasonic Servo Motor MSMD042G32N

12/03/2022

Classifications of Linear Guideways

As one of the most important parts of transmission system, the linear guideway has different types to meet different needs. This article will briefly introduce three classifications of linear guideways.

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:

08/14/2020

Characteristics and application analysis of cold storage evaporator

As one of the four major components of refrigeration, the evaporator plays a vital role in the entire refrigeration system. Therefore, the compressor and evaporator can only be matched reasonably to make the entire refrigeration system perform better.

06/14/2020

Piston compressor

The work of the piston compressor is completed by the working volume composed of the cylinder, the air valve and the piston reciprocating in the cylinder. If the volume loss and energy loss (that is, the ideal working process) of the actual operation of t器2䀀
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08/21/2020

A newly installed air conditioner trips as soon as it is plugged in. What's the matter

This question is about the first use of newly purchased appliances. This question actually asks two questions: First, the newly installed air conditioner trips as soon as it is plugged in. Why?

01/26/2023

How to Maintain a Pressure Transmitter

In order to prolong the service life of the pressure transmitter and reduce the error, regular inspection and maintenance are recommended, such as weekly inspection.

08/15/2020

How to control the temperature of the low-temperature storage room

Low-temperature preservation warehouses, we see the most food cold storage, which is mainly used to store items with strict temperature requirements.

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.

06/14/2020

Danfoss cocuses on providing energy efficient, sustainable and smart refrigeration compressors for a varied range of commercial applications such as cold rooms

07/23/2020

Share┃Causes and solutions for ice block, dirty block, and oil block

Foreword: The blockage of the refrigeration system is mainly caused by the ice blockage, dirty blockage or oil blockage of the capillary tube, or the dirty blockage of the dryer filter.