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How to measure the current and voltage clamp meter?
The jaw open press wrench clamp meter on the side of the test line is placed in the jaw jaw central, will be closed.
I would like to ask the relationship between the power of the water pump motor and the flow of water
The water flow is proportional to the pressure (the pipe diameter is constant), and the pressure is used to control the frequency converter for convenience and automation.
What is the voltage of the clamp table?
The clamp type meter can not measure voltage by the way of clamp!
The power consumption of the same load, different power motors?
When the 380V/55KW motor is full, the current is 100A. You only have 70A now, which means that your load is only about 35KW37KW motor can be used instead of the current slightly less than 70A, but not much. Nothing changed, slightly less. Idle work will be much smaller.
How to measure the current limiting resistor of electrostatic ring?
Measurement of grounding resistance can not use a multimeter, because the meter does not have the accuracy of this requirement, grounding resistance instrument at least 0.01 euro readings,
What kind of appliances are these? What role does it play? Not how the measured current clamp meter?
12 is a 220V with air leakage protection switch, right?. The 3 is a 380V air switch. Play the role of power on or off.
How do I add refrigerant to the wall mounted air conditioner?
Easy to understand method:Tool: refrigerant 1 kg. Catheter X2, pressure gauge,Methods: the catheter head is connected with a refrigerant, a head pressure gauge, and the other a tube pressure gauge and air conditioning even low pressure (that is, the tube, air conditioning pipe at the bottom of a small thimble valve, and it then put the air conditioning pipe connection) to the cooling condition, and then began to add fluoride, pointer pressure the table refers to the 0.5MP OK.
The reason that the phase current meter of the three-phase asynchronous motor is too low and the other two phases is normal is that it is too normal
If a new motor appears, one phase current is low, and the other two phases are normal. It is possible that the current is low, the phase voltage is high, or the current meter and the transformer have problems