Views: 0 Author: Site Editor Publish Time: 2021-06-16 Origin: Site
Main parameters of silicon controlled components in induction heating for bars and wires. The main parameters of SCR are average values. Then, let's introduce in detail induction heating for bars and wires and the current relationship.
Here is the content list:
l R rated pass - state average current
l Forward blocking peak voltage
l Rever blocking of the peak voltage
l Control pole trigger current Ig1 and trigger voltage VGT
l Maintain the current of IH
Induction heating for bars and wires is controlled by if induction heating power supply. SCR plays an important role in the control. SCR rectifier element is a kind of high-power semiconductor device with three PN junctions and four layers structure. Also known as a thyristor. With the characteristics of small size, relatively simple structure, and strong function, it is one of the more commonly used semiconductor devices. The device is widely used in various electronic devices and electronic products and is used as a controllable rectifier, inverter, frequency conversion, voltage regulation, contactless switch, and so on. It is one of the main accessories of steel rolling heating equipment.
Rated on-state average current IT under certain conditions, the average value of 50 Hz sinusoidal half-wave current that can be continuously passed between anode and cathode.
The forward blocking peak voltage VPF the forward peak voltage can be repeated at both ends of SCR when the open circuit of the control pole does not add trigger signal and the anode forward voltage does not exceed the conduction energy voltage. The forward voltage peak of SCR can not exceed this parameter value given in the manual of induction heating for bars and wires.
Reverse blocking peak voltage VPR when SCR adds reverse voltage and is in reverse turn-off state, the reverse peak voltage can be repeated at both ends of SCR. When used, the parameter value given in the manual can not be exceeded.
The trigger current Ig1 and the trigger voltage are controlled. When a certain voltage is added between the induction heating for bars and wires at the specified ambient temperature, the thyristor needs less control pole current and voltage from the off state to the on the state.
Maintenance current IH the smaller anode forward current necessary to control the pole break and maintain the thyristor conduction at a specified temperature. Many new silicon controllable elements have been introduced successively, such as fast silicon controllable devices suitable for high-frequency applications. It can be controlled in two directions with either positive or negative trigger signals, which can be guided with positive trigger signals, and turned off with negative trigger signals. When there are problems in the induction heating for bars and wires, silicon control should be measured first.
Above all is induction heating for bars and wires and the current relationship. I hope you will reserve a lot after reading these.