Speed(RPM): 1440
Motor power(Kw): 4
Boshan Vacuum Pump 2BV6110
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Recent related posts
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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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06/14/2020
Disassembly and failure analysis of scroll compressor
The scroll compressor is a positive displacement compression compressor, and the compression component is composed of a movable scroll and a static scroll. This includes many structural features that divert the flow of gas through the compressor housing t 器2 䀀 ᅵ皥
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08/13/2020
Maintenance and management methods of central air conditioning
Today, the editor of okmarts.com introduces to you several problems in the installation and maintenance of central air conditioning in the office, and proposes the following specific solutions, hoping to help you.
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08/08/2020
How to understand the real temperature commonly used in air conditioners
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06/12/2022
What is HMI?
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09/05/2020
Where does the air compressor rental market go
At the beginning of 2017, Dr. Li in the construction industry said that the international sales of construction machinery hours to leasers have reached more than 25% of the total machinery output value,
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01/30/2023
Characteristics of Smart Pressure Transmitters
With the rapid rise of fieldbus technology, the industrial process control system is gradually developing towards fieldbus control system (FCS) with two-way communication and smart instrument control, bring about the smart pressure transmitter.
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08/10/2021
How to Control Speed of Servo Motor & Anti-Interference Measures
A servomotor refers to the actuator to control the operation of mechanical components in the servo system and is a subsidy motor indirect transmission device.
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09/10/2020
What problems should be paid attention to when operating the centrifugal oxygen compressor
Compared with air compressors, centrifugal oxygen compressors are characterized by their different working media. Oxygen is a strong oxidizer and combustion-supporting agent. Therefore, there are stricter requirements for safety in design, manufacturing, installation, and use management. E.g:
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09/07/2020
Application of pressure dew point in compressed air system
The air that is reduced in volume and increased in pressure by the mechanical movement of the air compressor is called compressed air. Compressed air is an important power source and is widely used in many industrial fields such as machinery, metallurgy, electronics, electric power,