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Description
Introduction of the working principle
High efficiency switch welder is made up of full bridge rectifier, filter, high power IGBT module type power components, secondary rectifier circuit, inverter circuit of SiC, and load.
Features:
1. Higher system efficiency •
2. Reduced cooling requirements •
3. Increased power density •
4. Increased system switching frequency
The warranty period is 12 months from the date of installation and commissioning of the equipment.
Free Spare Parts during Full Warranty Period
Long-term spare parts support and technical services
Central control unit
Installed with LCD, power and speed adjust module; indicate the output current and voltage of the DC power unit; armature voltage and current, excitation voltage and current of the DC speed adjust unit. The pipe line can be completely controlled by the central control unit.
Cooling system
1.Air-water exchange system
Composition: consists of shell, heat exchanger, blower, spraying system, circulating pump, electric control and so on.
Working principle: The cooling water is driven by the system circulating pump, which circulates between the inside of the heat exchanger coils and the equipment, and the heat of the cooling water is transmitted to the pipe wall. Spraying water evenly spraying in the heat exchanger, cold air under the action of the fan from the tower below into the tower, and spray water upstream through the heat exchanger surface, spray water fully absorbs coil heat, then flows into the bottom of the tower sink, and is transferred from the spray pump to spray system. So repeatedly, the cooling water in the heat exchanger cools down.
Features:
A. The system uses the full closed cycle, distilled water cooling (avoid scaling).
B. High heat dissipation efficiency and low running cost.
C. Small footprint, easy to carry, free of reservoir for outer water.
2. Water-water heat exchange system
Composition：Plate heat exchanger, water tank, pump and electrical control part.
Working principle: The internal cooling is called inner water (distilled water), and the external cooling is called outer water (ordinary water). External and inner water exchange through the plate heat exchanger to reduce the temperature of the inner water. Thus, the equipment inside is cooled.
Features:
A. Seal circulation, outer water (normal) cools down the inner water (distilled water), no scaling.
B. High efficiency of heat radiation, low cost.
C. Reservoir is used for outer water. Comparing to air-water heat exchanger, it covers les area.
D. Long operation life.
Ground wire installation Requirements
Grounding pile requiremen
1. There are three groups of grounding piles, namely forming grounding piles, HF welder grounding piles, and sizing grounding piles. Both the forming and sizing ground piles are located at one end close to the HF welder ground pile.
2. Grounding pile requirements (each group consists of 3pcs of steel tubes with φ48mm and length 3m, and the space between each steel tube is 2.5m to form an equilateral triangle, and the upper end is firmly welded together with 50 * 4 flat iron), the grounding resistance less than the specified value (0.4 Ω). Weld ground bolts to the nearest grounding point on each group of ground pile.
3. Three groups of ground piles are connected together with 50*4 flat iron.
HF welder ground wire
HF welder ground piles should be made to surround the inverter cabinet as much as possible according to the above requirements.
The ground wire connection is directly led from the HF welder grounding copper bar to the HF welder grounding pile. Tighten with bolts on both sides (50mm² copper wire)
Forming and Sizing ground wire
It divides into two groups: forming and sizing, and the grounding points of the two groups should be located near the induction coil.
2. Divide into three grounding point to be welded grounding bolts, forming, extrusion roller, and sizing. Connect and tighten the bolts of the forming ground pile, hf welder ground pile, and sizing ground pile separately, and do not transfer.(50mm² copper wire)
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