AC Electric motor Plastic fan parts Specifications
1. Customised
2. good quality
3. 20 years manufacturing experience
4. Delivery Detail: 20-35 days after receiving payment
Terminal of the table there are three: one for the "L" or terminal, an "E" is the end, then a "G" (also called protection ring) shielding end, generally measured insulation resistance connected between the "L" "E", but when measured insulator surface leakage is serious, must shield ring of the articles will be tested or not measured part with "G" at the connection. This leakage current is by shielding small generator the "G" flowing to the negative side of the generator to form circuit directly, rather than through the measuring mechanism of megger (moving coil). Thus fundamentally eliminating the influence of surface leakage current, especially should pay attention to is measuring cable insulation resistance between the core and appearance, be sure to pick a good shielding terminal "G", because when air humidity is big, or the surface of the cable insulation and not clean, the leakage current will be very big, on the surface of the analyte to prevent due to the leakage of the impact of the internal insulation measurement, generally in the cable looks to water pump add a metal shield ring, connected with the "G" end of the megohmmeter.
Totally Enclosed Protect Feature and Three-phase Phase low rpm ac electric motor
Specifications
Specifications1.3-phase asynchronous motors
2.IEC standard
3.OEM
4.Voltage:50HZ &60HZ;380V&415V
5.Protection class: IP54
When using the shake test electrical equipment insulation resistance by megger are, must notice to "L" and "E" can't meet the, the correct connection is: "L" line terminal equipment under test conductor, "E" grounding terminal equipment shell, "G" shield termination insulating part of the device under test. If the "L" and "E", through the insulation leakage through the shell on the surface of the body and converge to the ground by the "L" to flow into the measuring coil, lose "G" shielding effect and bring great error measurement. In addition, because the Three phase motor "E" internal fuses with the insulation of the shell is much greater than "L" lower end and the degree of insulation shell, when on the ground by megger use, when the correct connection mode is used, the "E" end of instrument shell and the shell of the insulation resistance to ground, equivalent to a short circuit, will not result in errors, and when the "L" and "E" after the "E" of the insulation resistance measured insulation resistance in parallel with, smaller and make the measurement result, bring bigger error measurement.
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