Intermediate frequency furnace to burn the same SCR inverter

by:Hengyang Furnace     2020-10-06
Intermediate frequency furnace to burn the same inverter SCR technology, an intermediate frequency furnace thyristor inverter cabinet, its working principle is what? Answer: the unidirectional and bidirectional silicon controlled silicon controlled thyristor points two kinds, are three electrodes. One-way thyristor is cathode ( K) And the anode ( 一) And control ( G) 。 Bidirectional thyristor is equivalent to two single SCR reverse in parallel. Is one of the one-way silicon anode and cathode in the other side, said the terminal T2, one of the one-way silicon cathode and anode the other. Power rises inverter SCR intermediate frequency furnace resistance capacity to absorb the resistance of the temperature through a: the absorption of non-inductive resistor in normal circumstances, the temperature is 100 ~ 200 ℃. If too high, may be: breakdown, variable value selection is not reasonable or absorption capacity and so on. Intermediate frequency furnace frequently KK silicon controlled burning, request to solve a: silicon controlled this device resistance to over-voltage over-current capability is not strong, work junction temperature is not too high, the highest junction temperature of about 120 degrees or so. Also want to buy the authentic devices for big brands. You can test the working current of the load, and then compare the parameters of the thyristor, you use to leave enough margin. Choose a suitable silicon controlled rectifier, assembly on big enough. Old medium frequency furnace burning KK SCR is the reason why a: check whether the silicon controlled radiator temperature is exorbitant, pulse transformer pulse is normal, whether there is poorly insulated inverter output. Why old burn thyristor medium frequency furnace a. thyristor and thyristor, thyristor conduction and shut off only two kinds of working condition, so it has a switch features that make the conduction of the conditions of the thyristor turn-off current through the thyristor is reduced to a small number, is to maintain current IH. Its method has two: 1, reduce the positive anode voltage to a value, or reverse anode voltage. 2, increase. Make noise after burn out SCR intermediate frequency furnace how to return a responsibility? Please grant instruction! A: burn out SCR is certainly over-voltage or over-current. Check the line, is there any short circuit, or the water pipe is blocked, look at the water knew. Intermediate frequency furnace answer: what are the common failures most use of the fault is caused by the temperature, such as cooling water heat exchanger, common stove initial failure such as fault, if your stove drag chain including line fault. General startup fails is just a dc voltmeter pointer action will fall. If there is a beta foot imbalances are generally intermediate frequency under the condition of current voltage rise or fall sharply. Intermediate frequency furnace maintenance common sense to burn the same inverter SCR intermediate frequency furnace answer: SCR is good or bad judgment A measurement gate ( 门将) Resistance, the resistance in 8 - commonly - - Measurement of Yin and Yang (50 b AK) Resistance measurement should be open, measurement in K - in the road - - Note: in the multimeter is positive and negative way or open in the medium frequency power supply circuit, the test method can only be simple judge of silicon controlled because of the size and usage of SCR is different, the test. Intermediate frequency furnace over-voltage over-current lights start up 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. 2 tons of intermediate frequency furnace KK thyristor often burn out is what reason inverter SCR intermediate frequency furnace to burn the same answer: I think is a problem of circuit board, also encountered a similar situation before, some time ago I saw a similar article, you can search the website of the divine radiation electric furnace technology information, should be able to find a solution. Two tons of intermediate frequency furnace to burn the same inverter SCR technical data of KK thyristor medium frequency furnace often burn out is what reason to answer: I think is a problem of circuit board, also encountered a similar situation before, some time ago I saw a similar article, you can search the website of the divine radiation electric furnace technology information, should be able to find a solution. Intermediate frequency furnace over-voltage over-current lights start up 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. Sense of intermediate frequency furnace circle what reason is often spark breakdown after intermediate frequency furnace to burn the same inverter SCR answer: 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. Intermediate frequency furnace burning repeatedly thyristor can besmear thermal silicone intermediate frequency furnace to burn the same inverter SCR answer: you can. Failure 1 failure phenomenon: intermediate frequency furnace large dc current when starting, low voltage dc voltage and frequency and over-current protection device and start the deep voice.
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