چگونه به استفاده a مولتی متر برای شناسایی علت از هوا سوئیچ tripping
معمولا سه دلیل برای هوا سوئیچ tripping وجود دارد. کوتاه اتصال٪ 2c اضافه بار٪ 2c و خرابی.
is no need to measure short circuits٪2c and there are obvious or even huge acoustic and optoelectronic phenomena. For tripping caused by this reason٪2c as long as the cause of the the short .. Close the air switch and measure the three-phase incoming and outgoing wiring terminals of the switch using a multimeter٪27s ohm range. If the the conductivity is good٪2c you can power on and try it out. If the the phase is missing٪2c there no need to more. Replace the air switch.
٪0aIf a short circuit occurs in the air switch٪2c there is a possibility of the terminal being broken down. You can use a megger to measure the insulation resistance between each terminal (or use a multimeter to measure at a gear of 20K or higher٪2c and remove the incoming and outgoing wires on both sides of the the air switch). If the pointer of the dial indicator quickly deflects to the the right at the beginning of shaking٪2c it indicates that the interphase insulation of the the air switch has been broken down and cannot be used anymore. If the the insulation resistance is high٪2c several megaohms or more٪2c it can powered on for trial use.
٪ 0aاین روش برای قدرت در محاکمه است به عنوان شرح داده شده قبل از ان است. قطع قبلی قدرت منبع تغذیه٪ 2c نزدیک هوا سوئیچ که شده است تعمیر شده است٪ 2c و سپس بستن قبلی قدرت منبع تغذیه سوئیچ. اگر قدرت طبیعی و وجود دارد بدون غیر طبیعی برای تلفن های موبایل یا بو٪ 2c هوا سوئیچ می تواند ادامه به استفاده می شود .
٪0aOverload. Overload is one of the reasons for frequent tripping of air switch. Touching the air switch that is overloaded and tripped with your hand usually makes you feel that the shell is relatively hot٪2c or even hot to the touch. This will cause a protective action on the thermal components inside the air switch.
٪0aMeasure the working current of the air switch using the AC current range of a multimeter. if the working current exceeds the rated current of the air switch and continues to operate٪2c a higher level of air switch should be replace based on the the actual working current.
٪0aMisoperation. When the inlet and outlet wires of the air switch are aluminum wires٪2c it is easy to react with the copper terminal blocks of the air switch٪2c causing heat at the the terminal blocks. The thermal protection device inside the air switch is deformed due to heat٪2c resulting in a protective action. This is a typical malfunction. As long as copper aluminum terminal blocks are pressed onto the aluminum wire and tightly combined with the air switch terminal blocks٪2c this problem can be solved.
