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Water-cooled reactors are suitable for situations where the heat dissipation environment is poor. There are two types of water-cooled reactors. One is a water-electricity integrated product, which uses hollow wires as water pipe cooling devices for cooling; the other uses a water-electricity separated cooling method, in which the waterway does not pass through the winding, the water and electricity does not affect each other, and the heat of the winding and the core is indirectly absorbed through the cooling plate. Water-cooled reactors are mainly used in wind power generation projects (green energy) and are one of the important components of wind power generation project equipment. In addition, the reactor can also be used in occasions with poor heat dissipation.
1. Cooling Method: The working pressure of the waterway of the water-cooled reactor is 0.15MPa-0.2MPa, and the water flow rate is 16L/min
2. Insulation Grade: F
3. Inductance Accuracy: ±5%
4. Overload Requirements: overload 5% (long-term operation), overload 10% (30min), overload 50% (10s), the reactor is not saturated during overload, that is, the inductance change is less than 10%
5. Temperature Rise: The temperature rise of the coil and magnetic core is less than 100℃
6. There should be no mechanical impurities in the cooling water, and the hardness should not exceed 10 units.
7. When the reactor is put into operation, the water must not be cut off, the inlet water temperature must not exceed 25°C, and the outlet water temperature must not exceed 40°C
VDE0550
1. All materials used in the waterway are stainless steel, which has high strength, corrosion resistance and a service life of more than 20 years
2. The connection of water pipes and joints adopts a strong locking structure to ensure that the cooling medium does not leak, and the maximum working pressure is 10bar
3. The water pipe size is 8mm O.D. and 6mm I.D, the flow rate can reach 19L/min, and the heat dissipation efficiency is high
4. The waterway is a series structure, with four inlets and four outlets, and then each is connected to a main water joint. The joints are stainless steel pipe threads with sizes G3/8, G1/2, G1/4 or customized non-standard threads
1. Plate water-cooled reactor
The water-cooled heat sink is placed in the plate-type water-cooled reactor coil. The heat generated by the reactor is conducted through the heat sink and then exported through the water medium to achieve the purpose of reducing the temperature rise. The reactor separates water and electricity, and no leakage current is generated. It is widely used in wind power generation, PWM inverters, frequency converters and other power equipment.
2. Tubular water-cooled reactor
The winding is made of hollow copper tubes. The heat generated by copper loss is exported through the heat-conducting medium (pure water or mixed liquid) in the copper tube. The thermal contact between the heat-conducting medium and the heating conductor is good, the thermal conductivity is high, and the winding can withstand large current. The current is 1-25kA, and it is widely used in smelting, induction heating and other industrial equipment
