Holip VFD Frequency Converter HLPSK001543B
Type: VFD
Brand: Holip
There is no price at present, you can Request a Quote
Type: VFD
Brand: Holip
There is no price at present, you can Request a Quote
Type: VFD
Brand: Holip
There is no price at present, you can Request a Quote
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01/06/2024
Air-cooled chillers are one of the very important equipment in modern life, which is widely used in industrial, commercial and domestic environments to reduce and control temperatures in production and life.
08/30/2021
The refrigerator compressor is the core of a refrigerator and achieves the cooling effect. Due to the frequent use of the refrigerator
09/10/2020
In 1978, Japanese air-conditioning companies put forward the concept of inverter air conditioners. Because inverter air conditioners have many advantages, they soon entered the families of developed countries.
09/08/2022
The following article introduces some differences between brushed motors and brushless motors in terms of working principle and performance, hoping to deepen your understanding of them.
09/23/2020
Air compressor classification, working principle and air compressor selection The air compressor is the main body of the air source device. It is a device that converts the mechanical energy of the prime mover (usually an electric motor) into gas pressure energy, and is a pressure generating device for compressed air.
06/14/2020
What is the effect of pressure and temperature on the refrigeration system Refrigeration system performance testing involves many aspects, of which pressure and temperature are two points that cannot be bypassed. Today we will take a look at the pressure 器2 䀀 ᅵ皥 䖒皦즠Ʋ嫜ི 㲈Ʋ 䌁皦
08/08/2020
Although the refrigerating oil is only a small material, if you accidentally use inferior products, you can even burn the machine. I believe that many colleagues have often encountered it.
09/12/2023
Hydronic heat pumps are a type of heat pump that are becoming increasingly popular in residential and commercial settings. They offer a number of advantages over traditional heating and cooling systems, including increased efficiency, reduced energy costs, and improved air quality.
06/20/2020
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.
11/01/2022
An electric motor is a device that converts electrical energy into mechanical energy.