Intermediate frequency furnace coil insulation fault

by:Hengyang Furnace     2020-10-05
Intermediate frequency furnace coil insulation fault technology encyclopedia how to detect the failure answer: of medium frequency furnace 1 intermediate frequency furnace repair phase rectifier: problem characterized by abnormal noise when working, maximum rose less than output voltage rating, and strange sound bigger power ark, then can lower output voltage is controlled in 200 v, oscilloscope for investigation of the rectifier output voltage waveform ( Oscilloscope should be placed in power synchronization) , when the normal input voltage waveform each cycle were six waveform, lack of. How to choose a good intermediate frequency furnace coil varnish intermediate frequency furnace coil insulation bad answer: medium frequency furnace coil to ground insulation resistance shall be not less than 5 ohms, available megohmmeter measurement. Sense of intermediate frequency furnace circle what reason is often spark breakdown after a: 1, the reason: medium frequency furnace condenser soft breakdown. This phenomenon is commonly voltage suddenly flow to a certain value. Measures: with each wave table capacitor, or a capacitance of a drop, until find out bad capacitor. 2, reason: rectifier, inverter silicon soft breakdown or intermediate frequency furnace heat dissipation is not good. Measures: SCR soft breakdown when the multimeter to measure, only the boot in. Medium frequency induction coil of the circuit. In the case of how many degrees temperature insulating paint can answer: intermediate frequency furnace cooling water out of the water temperature control in the 30 - usually 40 degrees Celsius, the temperature, the overall efficiency is higher, intermediate frequency furnace energy consumption is low. More beneficial technology companies have been measured in the cooling water temperature, a 3 tons of intermediate frequency furnace, coil inside surface temperature at about 80 °, with body size, lining thickness is different, the electric power, frequency. Intermediate frequency furnace reactor what is the cause of the frequent breakdown? Help answer: http://wwwwanfangdatacomcn/qikan/periodicalArticles/gdyjs/gdyj99/gdyj9903/990330htm, here is the capacitance compensation reactor damage analysis. Hope to be able to help. You see if you use of intermediate frequency furnace proper, general reactor breakdown was due to overvoltage. The overvoltage is likely to be foreign or equipment. Intermediate frequency furnace reactor have abnormal sound is what reason? Answer: the failure phenomenon: equipment can be started, the voltage rises is not high, but the reactor sound particularly large, dull, voltage rises very unstable, with trembling. From time to time has over current or over voltage fault, sometimes even burning inverter tube, but disconnect inverter circuit rectifier part is good. Failure analysis and treatment: this kind of fault is most reactor has a problem. The inductance ratio of the reactor. How intermediate frequency furnace coil grounding test answer: there are two kinds of problems could understand after intermediate frequency electric furnace coil grounding test whether any running coil includes transformer grounding measurement method is to measure the insulation resistance to the ground. Namely, one end of the coil and the metal casing, bracket of the insulation resistance. Intermediate frequency electric furnace state of grounding test method to test, according to the ends of the earth the earth resistance of 4. What is the cause of the intermediate frequency furnace capacity will be burn out? A: I don't know the structure of the intermediate frequency furnace inside but can explain it from the Angle of the harmonic is likely to be the cause of intermediate frequency furnace produced in the process of inverter harmonic current is very big and it is belong to the high frequency harmonic, mainly 3, 5, and 7 times as the main harmonic current distortion rate of at least 10% of such large harmonic current on both sides of the condenser, right. Intermediate frequency furnace without power detection answer: fault phenomenon: equipment can be started, the voltage rises is not high, but the reactor sound particularly large, dull, voltage rises very unstable, with trembling. From time to time has over current or over voltage fault, sometimes even burning inverter tube, but disconnect inverter circuit rectifier part is good. Failure analysis and treatment: this kind of fault is most reactor has a problem. The inductance ratio of the reactor. What are the fault medium frequency furnace control circuit? Intermediate frequency furnace coil insulation fault a: summary of intermediate frequency electric furnace maintenance with instance thyristor medium frequency power supply device referred to as the thyristor intermediate frequency device, is the use of thyristor switch features of 50 hz power frequency current into intermediate frequency current of a power supply device ( 20KHz- - 80千赫) Mainly in the induction melting, induction heating, induction quenching and so on are widely used in the field.
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