Intermediate frequency furnace rectifying cutter breaking brake technology encyclopedia ask ace: relevant knowledge about intermediate frequency furnace
, rectifier, inverter, answer: medium frequency furnace is will power frequency 50 hz alternating current into intermediate frequency (
More than 300 hz and 20 KHZ)
Electricity, will the frequency of the current change, live to step is the rectifier and inverter, rectifier is 50 hz alternating current into direct current, direct use of the whole bridge rectifier bridge, rectifier bridge model there are many online, according to the size of the current selection.
Inverter is to change to dc back to alternating current (ac).
Intermediate frequency furnace control board rectifier pulse what is normal phenomenon?
A: after the rectifier dc voltage can rise to the largest input ac 135 times, such as to rise to normal, also is to use an oscilloscope to watch, you ask, is that the voltage is the most intuitive.
Intermediate frequency furnace and maintenance of the principle of intermediate frequency furnace rectifying cutter breaking brake answer: the working principle of intermediate frequency power supply as follows: the three-phase bridge type all control the ac rectifier for dc rectifier circuit, after the flat wave reactor, became a constant dc current source, then through single phase inverter bridge, the dc current inverter with a certain frequency (
Generally between 1000 and 8000 hz)
The single-phase medium frequency current.
Load is composed of induction coil and compensating capacitor, connection.
Power failure, why to separate the circuit breaker, breaker in separate isolation?
Answer: when the circuit breaker closing position has not been found to load caused by pull and isolating switch when wrong operation accidents, which cause the consequences are very different.
If the first power supply side isolating switch, is also cause short circuit is load isolation switch, but the fault is equal to the busbar short circuit, relay protection will lead to the power cut off, on the bus all caused by all the negative on the bus.
Intermediate frequency furnace tube why burn out intermediate frequency furnace rectifying cutter breaking brake answer: it is possible that not conduction, lead to the breakdown, specific you can go to the website of the divine radiation electric furnace
above, there are detailed introduced.
Electric knife switches can't electric switch, how should the analysis judgment and intermediate frequency furnace rectifying cutter breaking brake a: electric switch control circuit and the motor, and the mechanical linkage.
First of all want to see action motor fault, table tests are available, and then the control circuit, switch are in good condition, the line is in good condition, use multimeter to test out.
Ensure that the mechanical parts of the circuit part is trouble-free, can tear open come down to repair.
Total capacity of 6000 kva, 4 units of 1000 kva transformer, including three for the answer: is obviously more than the total load in your company the original reporting for the total capacity of 6000 kva, your high pressure setting value is high, but it is made to 6000 kva substation setting value.
So you don't trip, substation tripping.
Overload in severe cases, it is recommended that the expanded.
Isolation knife switches in the electric power system can be charged breaking a: isolating switch is commonly used with circuit breaker, the breaker is used for open circuit and processing circuit, the isolating switch used in the case of no current operation, as an obvious disconnect system (
Isolating switch, of course, is not without arcing ability, just arcing ability is not so strong circuit breaker.
According to the regulation, in some cases can be.
Intermediate frequency furnace heating, how how is the board no output for IGBT, a: hello, first of all, you can in the case of electricity measurement input power supply for ac and dc drive plate, the second is output to the IGBT G, S dc voltage and high and low, again without electricity down resistance measurement output G, S resistance, eventually dismantle copper platoon connected directly measured with pointer table 10 k file of IGBT turn-on, and close to judge IGBT.
Intermediate frequency furnace with double rectifier or single rectification good answer: this question should be rectified.
Intermediate frequency electric furnace before use should be detection electric circuit are in good condition, whether the element damage, the contact point is loosening and release, if have the above situation occurs should eliminate faults in rear can use.
Check intermediate frequency electric furnace water, water temperature, water quality, should meet the requirements of the device, the water temperature + 5 ℃ ~ + 40 ℃, the water pressure is 10 kg/cm2 ~ 20 kg/cm2.
Why should pour brake operation points first circuit breaker breaker points load side again the last intermediate frequency furnace rectifying cutter breaking brake a: circuit breaker arcing, and under the condition of the load switch and no breaker arc extinguishing device to pull the load side and the pull power breaker side breaker remember this step.
Isolation knife switches (
Why close breaker grounded the intermediate frequency furnace rectifying cutter breaking brake a: isolated dao is the source and load disconnect switch equipment and grounding knife is to prevent the power supply to eliminate induction atresia isolation and switching circuit breaker.
Two back into the line of power supply at the same time, the time into the line power failure, the rectifier circuit breaker medium frequency furnace breaking knife gate a: pull the power side knife switches, power off.
Draw in busbar side knife switches, disconnect the side of the bus power supply.
The difference between cast iron and cast steel medium frequency furnace maintenance of intermediate frequency furnace rectifying cutter breaking brake a: raw iron hard and brittle, lack of toughness, carbon content 211%
667% more iron carbon alloy and nonferrous impurities.
Nowadays, the adoption of induction melting furnace in induction heating furnace for forging industry is quite common.
As President of Foshan Hengyang Furnace Manufacturing Co.,Ltd., I am committed to the enduring values of integrity, accountability, innovation and flexibility, value creation and social responsibility.
The success of steel melting furnace of campaigns largely rides on how you market your company to the crowd.