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Reactor explosion-proof cold and heat cycle machine is a kind of mechanical refrigeration and heating equipment widely used in scientific research, biology, physics, medicine, chemical industry and other fields
.
It has many models, such as according to different sizes, different functions, different environments and so on
.
The reactor explosion-proof cold and heat cycle machine is also composed of compressors, condensers, expansion valves, heat exchangers, temperature controllers, circulating pumps, pre-cooling units, heating units, refrigeration units and other accessories
.
Each component has its own role and advantages
.
For users who use the reactor explosion-proof heating and cooling cycle machine for the first time, they are confused about what type of wires to use.
If the selection is too large, it will cause economic waste, and if the selection is too small, there will be hidden dangers.
issues of greater concern
.
How big is it? Let me tell you about the power cord selection for this device
.
1.
The total power, that is, the sum of the heating power and the pumping power
.
Calculate the current required for actual operation through the heating power, and then convert it into the wire diameter (refer to the wire current carrying capacity comparison table).
.
Generally, the heating power and pumping power of the equipment will be marked on the nameplate of each equipment.
Please refer to the nameplate.
If you are still unclear, you can directly call the manufacturer for information
.
2.
The number of phases of the power line, that is, the cable of several lines is selected
.
This depends on the control voltage inside the device.
Most manufacturers use AC 220V or DC 24V as the control voltage, especially the latter, a transformer will definitely be installed in the device, so choose a three-phase four-wire system (three Fire wire, one ground wire); in addition, there are also control voltages that use AC 220V, but there is no transformer installed in the equipment, when selecting the power line, you need to choose a three-phase five-wire system (three live wires, one ground wire, and one neutral wire).
)
.
3.
The impedance of the wire in the explosion-proof cooling and heating cycle machine of the reactor is proportional to its length and inversely proportional to its wire diameter
.
Please pay special attention to the wire material and wire diameter of the input and output wires when using the power supply
.
In order to prevent the wire from overheating due to excessive current and cause accidents
.
.
It has many models, such as according to different sizes, different functions, different environments and so on
.
The reactor explosion-proof cold and heat cycle machine is also composed of compressors, condensers, expansion valves, heat exchangers, temperature controllers, circulating pumps, pre-cooling units, heating units, refrigeration units and other accessories
.
Each component has its own role and advantages
.
For users who use the reactor explosion-proof heating and cooling cycle machine for the first time, they are confused about what type of wires to use.
If the selection is too large, it will cause economic waste, and if the selection is too small, there will be hidden dangers.
issues of greater concern
.
How big is it? Let me tell you about the power cord selection for this device
.
1.
The total power, that is, the sum of the heating power and the pumping power
.
Calculate the current required for actual operation through the heating power, and then convert it into the wire diameter (refer to the wire current carrying capacity comparison table).
.
Generally, the heating power and pumping power of the equipment will be marked on the nameplate of each equipment.
Please refer to the nameplate.
If you are still unclear, you can directly call the manufacturer for information
.
2.
The number of phases of the power line, that is, the cable of several lines is selected
.
This depends on the control voltage inside the device.
Most manufacturers use AC 220V or DC 24V as the control voltage, especially the latter, a transformer will definitely be installed in the device, so choose a three-phase four-wire system (three Fire wire, one ground wire); in addition, there are also control voltages that use AC 220V, but there is no transformer installed in the equipment, when selecting the power line, you need to choose a three-phase five-wire system (three live wires, one ground wire, and one neutral wire).
)
.
3.
The impedance of the wire in the explosion-proof cooling and heating cycle machine of the reactor is proportional to its length and inversely proportional to its wire diameter
.
Please pay special attention to the wire material and wire diameter of the input and output wires when using the power supply
.
In order to prevent the wire from overheating due to excessive current and cause accidents
.
