YCT / Variable Speed Motors YCT180-4A 1804A 4 KW

YCT series electromagnetic speed regulating motor is composed of three-phase asynchronous motor, electromagnetic slip clutch, tachometer generator, and electrical control device. It is widely used in various machines and equipment with constant torque and stepless speed regulation. YCT series electromagnetic speed regulating motor (hereinafter referred to as speed regulating motor) is a simple control AC stepless speed regulating motor, which consists of AC three-phase asynchronous motor, eddy current clutch (also known as electromagnetic slip clutch) and tachogenerator. It is usually combined with ZTK series, ZLK series (JZT3 series) and JDI series controllers to form a set of AC speed control drive device, equipped with speed measurement negative feedback automatic speed control system. It can carry out smooth stepless speed regulation in a relatively wide speed range. The electromagnetic speed regulating motor has simple structure, reliable operation, convenient application and maintenance (no commutator, no slip ring), good starting performance, low control power, easy automatic control and remote control, wide speed regulation ratio (1:10), and high speed regulation accuracy. It can be widely used in steel, power station, wire and cable, petroleum, chemical industry, papermaking, textile, printing and dyeing, machinery manufacturing and other industries for constant torque AC stepless speed regulation.

2. Scope of application YCT series electromagnetic speed-regulating motors are used in textile, chemical, printing and dyeing, chemistry, metallurgy, papermaking, cement, rubber, cables, clinker, power plants and other industrial machinery projects, and are more suitable for centrifugal pumps and fan loads with decreasing torque. , Through the stepless speed change to adjust the opening and closing of the valve to control the flow or pressure, so as to achieve the effect of energy saving. 3. Product Features 1. AC stepless speed regulation, automatic adjustment system with negative speed feedback, the speed change rate is less than 3%; 2. Simple structure, convenient use and maintenance, and low price; 3. No runaway zone, wide speed regulation range, up to 10:1; 4. The control power is small, which is convenient for manual control, automatic control and remote control, and has a wide range of use; 5. Good starting performance, large starting torque and smooth starting.

4. Conditions of use 1. Ambient temperature: <40℃ 2. Altitude: <1000m 3. Power supply voltage: 380V 4. Power frequency: 50HZ 5. Insulation class: B class 6. Protection class: IP21 7. Working mode: continuous (S1) 5. Product labeling Click to open a larger image in a new window

6. Technical parameters The stepless speed regulation of the YCT series electromagnetic speed-regulating asynchronous motor is accomplished by the electromagnet slip clutch. It has two rotating parts, a cylindrical armature and a claw-shaped magnetic pole. The two are not mechanically connected. The electric motor drives and rotates synchronously. When the excitation coil is supplied with direct current, a magnetic field is generated in the working air gap, and the armature cuts the magnetic field lines to generate an induced potential and form an eddy current. The magnetic field generated by the eddy current interacts with the magnetic pole magnetic field to generate electromagnetic force. The claw-shaped magnetic pole and the armature rotate in the same direction (but always maintain a certain speed difference), so as to output torque, the output shaft steering is consistent with the direction of the drag motor, and the size of the excitation current can be changed to easily adjust the output speed. Model Rated power (KW) Rated torque (N m) Speed ​​regulation range (r/min) Speed ​​change rate (%) Weight (Kg) YCT112-4A 0.55 3.6 1250-125 3 50 YCT112-4B 0.75 4.9 50 YCT132-4A 1.1 7.1 75 YCT132-4B 1.5 9.7 75 YCT160-4A 2.2 14.1 100 YCT160-4B 3 19.2 100 YCT180-4A 4 25.2 145 YCT200-4A 5.5 36.1 210 YCT200-4B 7.5 47.7 210

YCT225-4A 11 69 360 YCT225-4B 15 94 360 YCT250-4A 18.5 110 1320-132 460 YCT250-4B 22 137 460 YCT280-4A 30 189 580 YCT315-4A 37 232 800 YCT315-4B 45 282 800 YCT335-4A 55 344 1340-440 1200 YCT335-4B 75 469 1300 YCT355-4C 90 564 1340-600 150

YCT (horizontal)/YCTL (vertical) series electromagnetic speed regulating motors are the main derivative series of Y series asynchronous motors organized by the Ministry of Machinery Industry. The electromagnetic speed-regulating motor is composed of three parts: a drag motor (Y series motor), an electromagnetic slip clutch and a controller. It can be used in constant torque loads, and is especially suitable for use in decreasing torque loads (such as centrifugal pumps and fans). ), there is a more obvious energy saving effect.

1. When the user chooses this series of motors, the rated torque of the selected motor should be greater than or equal to the load torque. 2. When ordering, it is necessary to specify the product model, nominal power, speed regulation range, whether a controller is required, what kind of tachogenerator, etc. Example: YCT160-4B, 3KW.1250-125r/min stand-alone operation, no need to attach controller, intermediate frequency tachogenerator. Another example: YCT250-4A.18.5KW 1320-132r/min four generators running at constant speed and pulse side speed.

3. If you need special types or special specifications of YCT series motors, please contact us first, and we can design and trial-produce them according to specific conditions.

1. Natural mechanical characteristics: The eddy current clutch has soft natural mechanical characteristics. As shown in the figure, under a certain excitation current (1), the speed decreases with the increase of torque. The mechanical characteristics are similar to the winding characteristics. Therefore, in the open-loop control As long as the selection is reasonable, it can be used for winding machines that do not require very strict tension. (see Figure 1) 2. Artificial mechanical characteristics: The mechanical characteristics of YCT speed-regulating motor with ZTK, ZLK, JDI series controllers are shown in the figure below. When the load changes within the range of 10%-100% of the rated torque Mn, the controller can measure the speed according to the speed. The signal of the generator automatically adjusts the excitation current, so that the output speed is basically unchanged. The speed change rate of this series of speed regulating motors is less than 3%. 3. Since there is no direct mechanical connection between the input shaft and the output shaft, there is basically no out-of-control zone, which shows its superiority in many occasions. 4. Efficiency: The transmission efficiency of the YCT series electromagnetic speed regulating motor is proportional to the speed of the output shaft, so when the user designs and selects this product, it is used in the high-speed or medium-speed section for a long time, and the low-speed section is used in a short time. economy. 5. This product is suitable for speed regulation on constant torque or decreasing torque load but not for speed regulation on constant power load.

1. The ambient temperature does not exceed 40℃; 2. The altitude does not exceed 1000 meters; 3. The relative humidity is not more than 85%; 4. Less ash, no ferromagnetic material dust, no corrosive metal, gas that destroys insulation and explosive gas.