The SYT Series liquid resistance governor 
 I. Overview: 
 Starting and speed control, high voltage winding of the motor for 220 ~ 6000kw This product is mainly used in metallurgy, building materials, electricity and other industries, large and medium-sized fan, pump energy-saving Select speed control device. Particularly suitable for very high equipment reliability industries such as energy-saving electric power, mining and other industries. Squirrel cage motors, specially modified, without changing the original motor parameters, the cement foundation, without destroying the original motor and so the premise is the same for this speed control mode. Apply to fans, pumps class load, but also according to user needs and design a special liquid resistor governor. 

 Second, the basic principle: 
 Smoothly through the gears in the resistance of the motor rotor circuit in series with a tailor-made liquid, adjust the poles the distance between the plates in the liquid resistance to 
 Change the resistor value to achieve the purpose of adjusting the motor speed. Greater the resistance, the lower the motor speed; the resistance is zero, the motor reaches full speed. Motor in tune 
 Resistance by the Joule heat generated by the long-term power-speed running state, the liquid circulation device to force the pump into the heat exchanger equipment, for cooling. Heat exchanger with cold 
 Water can be recycled. 
 Third, the scope: 
 This product is mainly used for building materials, metallurgy, mining and industrial sectors such as fans, pumps, mills and other similar equipment, large and medium-sized wound different 
 Step motor starting and speed control. Speed ??control device is currently the choice of building materials, metallurgy, mining and other industrial sectors. 
 Fourth, the technical characteristics: 
 Doubles as a motor soft starter applications, the starting current is small (≤ 1.3 times the rated current), continuous start; 
 2, good linearity of the adjustment speed, easy access to the DCS input automatically; 
 3, compared with many other speed control mode, the running of the most reliable and virtually maintenance free; 
 4, the investment is far less than the frequency control program; 
 5, because they belong to the purely resistive nature, so there is no harmonic problems, do not pollute the power grid; 
 6, small footprint and flexible layout, easy to install. Industrial water cooling, so there are no special requirements for the layout of the environment, and can also can be placed in placed in the indoor or outdoor, but without air conditioning cooling, especially for fan and pump energy-saving,; 
 7, controlled by PLC, the programming language implementation of the IEC1131 standard, all analog, digital I / O interface programmable, scalable; 
 Industry standard communication interface, both in situ monitoring and remote monitoring; 
 9, the dual-circuit power input, two-way power standby for each other and automatically switch to improve the reliability of equipment operation; 
 10, automatic bypass, remote manual bypass, artificial in-place physical bypass function to ensure maximum fan without stopping the machine to work properly (no tripping operation); 
 11, significant energy saving effect. After conversion, approximately 3% to 8% higher than the efficiency of the fluid coupling speed mode speed control; if the utilization of the air volume is between 85 to 60 percent, saving up to 25 ~ 50% effect. 
 12, the resistance power of the heat generated by the circulation device, the resistance of fluid to force the pump into the heat exchanger, heat treatment. Although in this way will waste some of the heat energy, but with the fan side energy savings are small compared Moreover, this simple approach, but in exchange, the reliability of the equipment greatly improve! Fully reflects the more simple and more reliable "principle. So the liquid resistor governor running is the most reliable, particularly suitable for very high equipment reliability industries such as energy-saving electric power, mining and other industries. 
 Five conditions: 
 At an altitude of more than 2000m; 
 (2) the relative humidity of the atmosphere does not exceed 85%; 
 Ambient temperature: -5 ~ +50 ℃. Occasions may freeze in winter, optional electric heater type; 
 4 in no danger of explosion of the media, non-conductive dust and corrosion of metal or destroy insulation gas; 
 (5) no significant shaking with shock and vibration; 
 Cabinet of governor control power supply: three phase four wire 380V/220V, 50Hz; power capacity: SYT-DL-220 ~ 2000: 20A, SYT-DL Model: 30A; 
 The installation site should have the cooling water used to cool the resistance of liquid; cooling water requirements are: pure no debris, the pressure of not less than 0.2MP, the temperature does not exceed 30 ℃ 
 Six technical parameters: 
 Model applicable motor capacity (KW) resistance inside temperature (° C) circulating pump power (S) the amount of cooling water 
 Of SYT-220 220 <55 0.37 ≤ 2 
 SYT-315 315 <55 1.1 ≤ 3.5 
 SYT-450 450 <55 1.1 ≤ 5.0 
 Of SYT-630 630 <55 1.1 ≤ 6.5 
 Of SYT-800 800 <55 2.2 ≤ 10 
 Of SYT-1000 1000 <55 2.2 ≤ 12 
 Of SYT-1400 1400 <55 4.0 ≤ 15 
 SYT-2000 2000 <55 5.5 ≤ 20 
 Of SYT-2500 2500 <55 7.5 ≤ 28 
 Of SYT-3200 3200 <55 11 ≤ 38 
 Of SYT-4500 4500 <55 15 ≤ 48 
 Of SYT-6000 6000 <55 20 ≤ 58